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求助:高压测量方法 [复制链接]

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tongshaoqiang 发表于 2010-4-9 08:12:21 |显示全部楼层 |返回版面
各位高手大侠,最近遇到高压测量的问题,想请大家帮忙提供解决思路
如附图:  从信号源出来的正弦信号vpp(0-300mv)经过功率放大器后加大空心变压器的初级,经过空心变压器的次级与并联电容发生谐振,得到峰峰值0-6000v的交流高压,从变压器的次级绕组中间取抽头接地,得到峰峰值正负3000v的高压。
现在我想随着信号源输入信号的变化,我想实时测量变压器次级输出的高压峰峰值,请大家提供好的思路。万分感谢。
另外接入的测量电路最好不要带入大的分布电感电容以免影响原来电路的谐振点(1mhz左右)
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maychang 查看完整内容

这个测量还真是比较困难。 1MHz频率,电阻分压必定要 ...
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tongshaoqiang 发表于 2010-4-9 08:13:17 |显示全部楼层 |返回版面
先自己顶一下,如果需要什么参数大家可留言给我,我好补充
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HWM 发表于 2010-4-9 08:24:46 |显示全部楼层 |返回版面
分压以后再处理。
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mohanwei 发表于 2010-4-9 08:42:12 |显示全部楼层 |返回版面
实用的,除了分压好像没有别的招……
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tongshaoqiang 发表于 2010-4-9 09:01:34 |显示全部楼层 |返回版面
实用的,除了分压好像没有别的招……
mohanwei 发表于 2010-4-9 08:42

能详细点说说吗,或者有资料发给我也行啊
tongshaoqiang@163.com
拜谢
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maychang 发表于 2010-4-9 11:44:33 |显示全部楼层 |返回版面
这个测量还真是比较困难。
1MHz频率,电阻分压必定要电容补偿才准确,但加入电容肯定影响谐振频率。谐振回路电容也就是几十pF。
是否可以间接测量:在次级串联一个小电阻,测量电阻上的电流。这样可能对次级谐振回路影响较小。该电阻必须无感,其值应该在0.1欧以下。这样测量,该取样电阻上电压很小,显然必须放大后测量电压。这个放大器的增益必须稳定。
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wwg911 发表于 2010-4-9 11:44:36 |显示全部楼层 |返回版面
楼主C2用的什么电容,能否上个图片看看?
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tongshaoqiang 发表于 2010-4-9 13:44:28 |显示全部楼层 |返回版面
楼主C2用的什么电容,能否上个图片看看?
wwg911 发表于 2010-4-9 11:44

电容实际是离子阱的两块极板,容量18pf左右。做实验时用的聚四氟乙烯做的可调电容器。
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tongshaoqiang 发表于 2010-4-9 13:46:03 |显示全部楼层 |返回版面
这个测量还真是比较困难。
1MHz频率,电阻分压必定要电容补偿才准确,但加入电容肯定影响谐振频率。谐振回路电容也就是几十pF。
是否可以间接测量:在次级串联一个小电阻,测量电阻上的电流。这样可能对次级谐振回路 ...
maychang 发表于 2010-4-9 11:44

用电压互感器的方法呢?我就担心用电压互感器会把电路引入额外电感,影响原来的谐振频率。没敢从厂家做电压互感器,价格也不菲。
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tongshaoqiang 发表于 2010-4-9 13:47:38 |显示全部楼层 |返回版面
6# maychang

您真的是硬件设计的高手!掌握的东西太广泛了,真的希望跟您学习
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maychang 发表于 2010-4-9 14:40:40 |显示全部楼层 |返回版面
9楼:
电压互感器对谐振回路的影响不比带电容补偿的电阻分压小。
10楼:
不敢当。坛里高手如云,有得是。
测量电流这个方法,过去常用的Q表里面就是这样测量的。其电阻是很细的一根直锰铜丝。
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corset 发表于 2010-4-9 19:55:21 |显示全部楼层 |返回版面
用负反馈电路把高压信号衰减吧,但要注意对线路做好保护.目前我正在调试这个电路.我的检测电压目前为500负
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tongshaoqiang 发表于 2010-4-10 15:34:59 |显示全部楼层 |返回版面
这个测量还真是比较困难。
1MHz频率,电阻分压必定要电容补偿才准确,但加入电容肯定影响谐振频率。谐振回路电容也就是几十pF。
是否可以间接测量:在次级串联一个小电阻,测量电阻上的电流。这样可能对次级谐振回路 ...
maychang 发表于 2010-4-9 11:44

maychang前辈,我不是很明白你讲的。比如我要测的交流高压的有效值1000v,次级串联小电阻后测得其电流大概5ma,那么该电阻上的电压值0.1欧姆乘以0.005等于0.05mv,我不知道这个电压与1000v的比例关系是怎么样的。
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maychang 发表于 2010-4-10 16:26:16 |显示全部楼层 |返回版面
13楼:
频率已知,电感量已知或电容量已知(事先测量好),那么感抗或容抗可以计算出来(谐振时二者相等)。电流乘以感抗或容抗,就是电感或电容两端电压,交流电路的欧姆定律。
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小z 发表于 2010-4-15 15:43:44 |显示全部楼层 |返回版面
有专门的高压测试探头,直接接示波器看波形,行吗
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iC921 发表于 2010-4-15 18:28:36 |显示全部楼层 |返回版面


这个图有个明显的错误:出于安全需要,变压器两边不能是同一个地。
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lirunze 发表于 2010-4-15 18:37:12 |显示全部楼层 |返回版面
电阻分压就可以啊
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tongshaoqiang 发表于 2010-4-17 14:22:20 |显示全部楼层 |返回版面
15# 小z

实验时可以这样,但如果做成产品就不行了,那还得附带示波器。你说呢。
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tongshaoqiang 发表于 2010-4-17 14:27:32 |显示全部楼层 |返回版面
http://bbs.21ic.com/attachments/month_1004/1004090812dd8a28f5bdc9c92c.jpg

这个图有个明显的错误:出于安全需要,变压器两边不能是同一个地。
iC921 发表于 2010-4-15 18:28



我的功放,是买的商品仪器,他的输出用BNC头引出,信号的地通过BNC接头联入仪器外壳,也就是接入了大地。
空心变压器的次级输出峰峰值6000vpp(中间抽头接大地,分成正负3000vpp输出),有效值算算也得有1000v了,为了安全考虑,他的参考地也得接入大地。
把空心变压器前后地分开,那我该怎么办呢?
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tongshaoqiang 发表于 2010-4-28 08:47:00 |显示全部楼层 |返回版面
13楼:
频率已知,电感量已知或电容量已知(事先测量好),那么感抗或容抗可以计算出来(谐振时二者相等)。电流乘以感抗或容抗,就是电感或电容两端电压,交流电路的欧姆定律。 ...
maychang 发表于 2010-4-10 16:26

谐振时,电感电容两端峰峰值电压最高,但是由于输入信号的频率是可调的,我要测量的是个随输入频率变化的电压,所以电感电容两端的阻抗是变化的。如果每次因为输入频率变化再计算相应的阻,不是很直观。
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如附图:  从信号源出来的正弦信号vpp(0-300mv)经过功率放大器后加大空心变压器的初级,经过空心变压器的次级与并联电容发生谐振,得到峰峰值0-6000v的交流高压,从变压器的次级绕组中间取抽头接地,得到峰峰值正负3000v的高压。
现在我想随着信号源输入信号的变化,我想实时测量变压器次级输出的高压峰峰值,请大家提供好的思路。万分感谢。
另外接入的测量电路最好不要带入大的分布电感电容以免影响原来电路的谐振点(1mhz左右) [useip] => 123.128.177.176 [invisible] => 0 [anonymous] => 0 [usesig] => 0 [htmlon] => 0 [bbcodeoff] => -1 [smileyoff] => -1 [parseurloff] => 0 [attachment] => 1 [rate] => 0 [ratetimes] => 0 [status] => 0 [tags] => Array ( [0] => Array ( [0] => 028521 [1] => 求助 ) [1] => Array ( [0] => 29236 [1] => 测量方法 ) [2] => Array ( [0] => 28521 [1] => 求助 ) [3] => Array ( [0] => 29236 [1] => 测量方法 ) [4] => Array ( [0] => 42396 [1] => 高压 ) ) [comment] => 0 [replycredit] => 0 [relateitem] => [uid] => 598372 [username] => tongshaoqiang [groupid] => 34 [adminid] => 0 [regdate] => 2009-11-13 [credits] => 2772 [email] => tongshaoqiang@163.com [memberstatus] => 0 [lastactivity] => 1406539542 [authorinvisible] => 0 [extcredits1] => 2772 [extcredits2] => 0 [extcredits3] => 2390 [extcredits4] => 0 [extcredits5] => 0 [extcredits6] => 0 [extcredits7] => 0 [extcredits8] => 0 [friends] => 15 [posts] => 918 [threads] => 139 [digestposts] => 0 [doings] => 0 [blogs] => 29 [albums] => 1 [sharings] => 0 [attachsize] => 942236 [views] => 62 [oltime] => 394 [todayattachs] => 0 [todayattachsize] => 0 [tcount] => 137 [ccount] => 135 [follower] => 0 [following] => 0 [newfollower] => 0 [gender] => 0 [site] => [icq] => [qq] => [yahoo] => [msn] => [taobao] => [alipay] => [medals] => Array ( [0] => Array ( [name] => 缘定三生 [image] => medal_24.gif [description] => 时间类勋章 [medalid] => 35 ) [1] => Array ( [name] => 技术奇才奖章 [image] => medal_29.gif [description] => 人才类勋章 [medalid] => 40 ) [2] => Array ( [name] => 精华达人奖章 [image] => medal_3.gif [description] => 等级类勋章 [medalid] => 14 ) [3] => Array ( [name] => 湍急之河流 [image] => medal_15.gif [description] => 发帖类勋章 [medalid] => 26 ) ) [signature] => [customstatus] => [thismonth] => 30 [total] => 23655 [privacy] => Array ( [profile] => Array ( [is_techxchange] => 0 [product] => 3 [realname] => 3 [gender] => 3 [birthday] => 3 [birthcity] => 3 [residecity] => 3 [qq] => 3 [yahoo] => 3 [msn] => 3 [taobao] => 3 [address] => 3 [zipcode] => 3 [telephone] => 3 [mobile] => 3 [graduateschool] => 3 [education] => 3 [company] => 3 [position] => 3 [revenue] => 3 [occupation] => 3 [interest_now] => 3 [use_now] => 3 [idcardtype] => 3 [idcard] => 3 [site] => 0 [bio] => 0 [interest] => 0 ) ) [verify1] => 0 [verify2] => 0 [verify3] => 0 [verify4] => 0 [verify5] => 0 [verify6] => 0 [verify7] => 0 [newpostanchor] => [lastpostanchor] => [number] => 1 [dbdateline] => 1270771941 [usernameenc] => tongshaoqiang [readaccess] => 90 [authortitle] => 初级工程师 [stars] => 6 [upgradecredit] => 228 [taobaoas] => [lastdate] => 2014-7-28 [authoras] => tongshaoqiang [avatar] => [groupicon] => [banned] => 0 [warned] => 0 [attachments] => Array ( ) [attachlist] => [imagelist] => [allowcomment] => [custominfo] => Array ( [left] =>
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实用的,除了分压好像没有别的招……
mohanwei 发表于 2010-4-9 08:42

能详细点说说吗,或者有资料发给我也行啊
tongshaoqiang@163.com
拜谢 [useip] => 123.128.177.176 [invisible] => 0 [anonymous] => 0 [usesig] => 0 [htmlon] => 0 [bbcodeoff] => 0 [smileyoff] => -1 [parseurloff] => 0 [attachment] => 0 [rate] => 0 [ratetimes] => 0 [status] => 0 [tags] => 0 [comment] => 0 [replycredit] => 0 [uid] => 598372 [username] => tongshaoqiang [groupid] => 34 [adminid] => 0 [regdate] => 2009-11-13 [credits] => 2772 [email] => tongshaoqiang@163.com [memberstatus] => 0 [lastactivity] => 1406539542 [authorinvisible] => 0 [extcredits1] => 2772 [extcredits2] => 0 [extcredits3] => 2390 [extcredits4] => 0 [extcredits5] => 0 [extcredits6] => 0 [extcredits7] => 0 [extcredits8] => 0 [friends] => 15 [posts] => 918 [threads] => 139 [digestposts] => 0 [doings] => 0 [blogs] => 29 [albums] => 1 [sharings] => 0 [attachsize] => 942236 [views] => 62 [oltime] => 394 [todayattachs] => 0 [todayattachsize] => 0 [tcount] => 137 [ccount] => 135 [follower] => 0 [following] => 0 [newfollower] => 0 [gender] => 0 [site] => [icq] => [qq] => [yahoo] => [msn] => [taobao] => [alipay] => [medals] => Array ( [0] => Array ( [name] => 缘定三生 [image] => medal_24.gif [description] => 时间类勋章 [medalid] => 35 ) [1] => Array ( [name] => 技术奇才奖章 [image] => medal_29.gif [description] => 人才类勋章 [medalid] => 40 ) [2] => Array ( [name] => 精华达人奖章 [image] => medal_3.gif [description] => 等级类勋章 [medalid] => 14 ) [3] => Array ( [name] => 湍急之河流 [image] => medal_15.gif [description] => 发帖类勋章 [medalid] => 26 ) ) [signature] => [customstatus] => [thismonth] => 30 [total] => 23655 [privacy] => Array ( [profile] => Array ( [is_techxchange] => 0 [product] => 3 [realname] => 3 [gender] => 3 [birthday] => 3 [birthcity] => 3 [residecity] => 3 [qq] => 3 [yahoo] => 3 [msn] => 3 [taobao] => 3 [address] => 3 [zipcode] => 3 [telephone] => 3 [mobile] => 3 [graduateschool] => 3 [education] => 3 [company] => 3 [position] => 3 [revenue] => 3 [occupation] => 3 [interest_now] => 3 [use_now] => 3 [idcardtype] => 3 [idcard] => 3 [site] => 0 [bio] => 0 [interest] => 0 ) ) [verify1] => 0 [verify2] => 0 [verify3] => 0 [verify4] => 0 [verify5] => 0 [verify6] => 0 [verify7] => 0 [newpostanchor] => [lastpostanchor] => [number] => 5 [dbdateline] => 1270774894 [usernameenc] => tongshaoqiang [readaccess] => 90 [authortitle] => 初级工程师 [stars] => 6 [upgradecredit] => 228 [taobaoas] => [lastdate] => 2014-7-28 [authoras] => tongshaoqiang [avatar] => [groupicon] => [banned] => 0 [warned] => 0 [attachments] => Array ( ) [attachlist] => [imagelist] => [allowcomment] => 1 [custominfo] => Array ( [left] =>
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1MHz频率,电阻分压必定要电容补偿才准确,但加入电容肯定影响谐振频率。谐振回路电容也就是几十pF。
是否可以间接测量:在次级串联一个小电阻,测量电阻上的电流。这样可能对次级谐振回路影响较小。该电阻必须无感,其值应该在0.1欧以下。这样测量,该取样电阻上电压很小,显然必须放大后测量电压。这个放大器的增益必须稳定。 [useip] => 222.130.24.33 [invisible] => 0 [anonymous] => 0 [usesig] => 0 [htmlon] => 0 [bbcodeoff] => -1 [smileyoff] => -1 [parseurloff] => 0 [attachment] => 0 [rate] => 0 [ratetimes] => 0 [status] => 0 [tags] => 0 [comment] => 0 [replycredit] => 0 [uid] => 259938 [username] => maychang [groupid] => 3 [adminid] => 3 [regdate] => 2004-4-7 [credits] => 114379 [email] => maychang@tom.com [memberstatus] => 0 [lastactivity] => 1406726863 [authorinvisible] => 0 [extcredits1] => 64191 [extcredits2] => 0 [extcredits3] => 29724 [extcredits4] => 0 [extcredits5] => 50188 [extcredits6] => 0 [extcredits7] => 0 [extcredits8] => 0 [friends] => 148 [posts] => 29158 [threads] => 67 [digestposts] => 8 [doings] => 0 [blogs] => 0 [albums] => 0 [sharings] => 0 [attachsize] => 0 [views] => 1561 [oltime] => 6756 [todayattachs] => 2 [todayattachsize] => 132495 [tcount] => 8 [ccount] => 5 [follower] => 179 [following] => 0 [newfollower] => 179 [gender] => 1 [site] => [icq] => [qq] => [yahoo] => [msn] => [taobao] => [alipay] => [medals] => [signature] => [customstatus] => [thismonth] => 12210 [total] => 405955 [privacy] => Array ( [profile] => Array ( [is_techxchange] => 0 [product] => 3 [realname] => 3 [gender] => 3 [birthday] => 3 [birthcity] => 3 [residecity] => 3 [qq] => 3 [yahoo] => 3 [msn] => 3 [taobao] => 3 [address] => 3 [zipcode] => 3 [telephone] => 3 [mobile] => 3 [graduateschool] => 3 [education] => 3 [company] => 3 [position] => 3 [revenue] => 3 [occupation] => 3 [interest_now] => 3 [use_now] => 3 [idcardtype] => 3 [idcard] => 3 [site] => 0 [bio] => 0 [interest] => 0 ) ) [verify1] => 0 [verify2] => 0 [verify3] => 0 [verify4] => 0 [verify5] => 0 [verify6] => 0 [verify7] => 0 [newpostanchor] => [lastpostanchor] => [number] => 6 [dbdateline] => 1270784673 [usernameenc] => maychang [readaccess] => 100 [authortitle] => 版主 [stars] => 9 [upgradecredit] => [taobaoas] => [lastdate] => 2014-7-30 [authoras] => maychang [avatar] => [groupicon] => [banned] => 0 [warned] => 0 [attachments] => Array ( ) [attachlist] => [imagelist] => [allowcomment] => 1 [custominfo] => Array ( [left] =>
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楼主C2用的什么电容,能否上个图片看看?
wwg911 发表于 2010-4-9 11:44

电容实际是离子阱的两块极板,容量18pf左右。做实验时用的聚四氟乙烯做的可调电容器。 [useip] => 123.128.177.176 [invisible] => 0 [anonymous] => 0 [usesig] => 0 [htmlon] => 0 [bbcodeoff] => 0 [smileyoff] => -1 [parseurloff] => 0 [attachment] => 0 [rate] => 0 [ratetimes] => 0 [status] => 0 [tags] => 0 [comment] => 0 [replycredit] => 0 [uid] => 598372 [username] => tongshaoqiang [groupid] => 34 [adminid] => 0 [regdate] => 2009-11-13 [credits] => 2772 [email] => tongshaoqiang@163.com [memberstatus] => 0 [lastactivity] => 1406539542 [authorinvisible] => 0 [extcredits1] => 2772 [extcredits2] => 0 [extcredits3] => 2390 [extcredits4] => 0 [extcredits5] => 0 [extcredits6] => 0 [extcredits7] => 0 [extcredits8] => 0 [friends] => 15 [posts] => 918 [threads] => 139 [digestposts] => 0 [doings] => 0 [blogs] => 29 [albums] => 1 [sharings] => 0 [attachsize] => 942236 [views] => 62 [oltime] => 394 [todayattachs] => 0 [todayattachsize] => 0 [tcount] => 137 [ccount] => 135 [follower] => 0 [following] => 0 [newfollower] => 0 [gender] => 0 [site] => [icq] => [qq] => [yahoo] => [msn] => [taobao] => [alipay] => [medals] => Array ( [0] => Array ( [name] => 缘定三生 [image] => medal_24.gif [description] => 时间类勋章 [medalid] => 35 ) [1] => Array ( [name] => 技术奇才奖章 [image] => medal_29.gif [description] => 人才类勋章 [medalid] => 40 ) [2] => Array ( [name] => 精华达人奖章 [image] => medal_3.gif [description] => 等级类勋章 [medalid] => 14 ) [3] => Array ( [name] => 湍急之河流 [image] => medal_15.gif [description] => 发帖类勋章 [medalid] => 26 ) ) [signature] => [customstatus] => [thismonth] => 30 [total] => 23655 [privacy] => Array ( [profile] => Array ( [is_techxchange] => 0 [product] => 3 [realname] => 3 [gender] => 3 [birthday] => 3 [birthcity] => 3 [residecity] => 3 [qq] => 3 [yahoo] => 3 [msn] => 3 [taobao] => 3 [address] => 3 [zipcode] => 3 [telephone] => 3 [mobile] => 3 [graduateschool] => 3 [education] => 3 [company] => 3 [position] => 3 [revenue] => 3 [occupation] => 3 [interest_now] => 3 [use_now] => 3 [idcardtype] => 3 [idcard] => 3 [site] => 0 [bio] => 0 [interest] => 0 ) ) [verify1] => 0 [verify2] => 0 [verify3] => 0 [verify4] => 0 [verify5] => 0 [verify6] => 0 [verify7] => 0 [newpostanchor] => [lastpostanchor] => [number] => 8 [dbdateline] => 1270791868 [usernameenc] => tongshaoqiang [readaccess] => 90 [authortitle] => 初级工程师 [stars] => 6 [upgradecredit] => 228 [taobaoas] => [lastdate] => 2014-7-28 [authoras] => tongshaoqiang [avatar] => [groupicon] => [banned] => 0 [warned] => 0 [attachments] => Array ( ) [attachlist] => [imagelist] => [allowcomment] => 1 [custominfo] => Array ( [left] =>
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这个测量还真是比较困难。
1MHz频率,电阻分压必定要电容补偿才准确,但加入电容肯定影响谐振频率。谐振回路电容也就是几十pF。
是否可以间接测量:在次级串联一个小电阻,测量电阻上的电流。这样可能对次级谐振回路 ...
maychang 发表于 2010-4-9 11:44

用电压互感器的方法呢?我就担心用电压互感器会把电路引入额外电感,影响原来的谐振频率。没敢从厂家做电压互感器,价格也不菲。 [useip] => 123.128.177.176 [invisible] => 0 [anonymous] => 0 [usesig] => 0 [htmlon] => 0 [bbcodeoff] => 0 [smileyoff] => -1 [parseurloff] => 0 [attachment] => 0 [rate] => 0 [ratetimes] => 0 [status] => 0 [tags] => 0 [comment] => 0 [replycredit] => 0 [uid] => 598372 [username] => tongshaoqiang [groupid] => 34 [adminid] => 0 [regdate] => 2009-11-13 [credits] => 2772 [email] => tongshaoqiang@163.com [memberstatus] => 0 [lastactivity] => 1406539542 [authorinvisible] => 0 [extcredits1] => 2772 [extcredits2] => 0 [extcredits3] => 2390 [extcredits4] => 0 [extcredits5] => 0 [extcredits6] => 0 [extcredits7] => 0 [extcredits8] => 0 [friends] => 15 [posts] => 918 [threads] => 139 [digestposts] => 0 [doings] => 0 [blogs] => 29 [albums] => 1 [sharings] => 0 [attachsize] => 942236 [views] => 62 [oltime] => 394 [todayattachs] => 0 [todayattachsize] => 0 [tcount] => 137 [ccount] => 135 [follower] => 0 [following] => 0 [newfollower] => 0 [gender] => 0 [site] => [icq] => [qq] => [yahoo] => [msn] => [taobao] => [alipay] => [medals] => Array ( [0] => Array ( [name] => 缘定三生 [image] => medal_24.gif [description] => 时间类勋章 [medalid] => 35 ) [1] => Array ( [name] => 技术奇才奖章 [image] => medal_29.gif [description] => 人才类勋章 [medalid] => 40 ) [2] => Array ( [name] => 精华达人奖章 [image] => medal_3.gif [description] => 等级类勋章 [medalid] => 14 ) [3] => Array ( [name] => 湍急之河流 [image] => medal_15.gif [description] => 发帖类勋章 [medalid] => 26 ) ) [signature] => [customstatus] => [thismonth] => 30 [total] => 23655 [privacy] => Array ( [profile] => Array ( [is_techxchange] => 0 [product] => 3 [realname] => 3 [gender] => 3 [birthday] => 3 [birthcity] => 3 [residecity] => 3 [qq] => 3 [yahoo] => 3 [msn] => 3 [taobao] => 3 [address] => 3 [zipcode] => 3 [telephone] => 3 [mobile] => 3 [graduateschool] => 3 [education] => 3 [company] => 3 [position] => 3 [revenue] => 3 [occupation] => 3 [interest_now] => 3 [use_now] => 3 [idcardtype] => 3 [idcard] => 3 [site] => 0 [bio] => 0 [interest] => 0 ) ) [verify1] => 0 [verify2] => 0 [verify3] => 0 [verify4] => 0 [verify5] => 0 [verify6] => 0 [verify7] => 0 [newpostanchor] => [lastpostanchor] => [number] => 9 [dbdateline] => 1270791963 [usernameenc] => tongshaoqiang [readaccess] => 90 [authortitle] => 初级工程师 [stars] => 6 [upgradecredit] => 228 [taobaoas] => [lastdate] => 2014-7-28 [authoras] => tongshaoqiang [avatar] => [groupicon] => [banned] => 0 [warned] => 0 [attachments] => Array ( ) [attachlist] => [imagelist] => [allowcomment] => 1 [custominfo] => Array ( [left] =>
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您真的是硬件设计的高手!掌握的东西太广泛了,真的希望跟您学习 [useip] => 123.128.177.176 [invisible] => 0 [anonymous] => 0 [usesig] => 0 [htmlon] => 0 [bbcodeoff] => 0 [smileyoff] => -1 [parseurloff] => 0 [attachment] => 0 [rate] => 0 [ratetimes] => 0 [status] => 0 [tags] => 0 [comment] => 0 [replycredit] => 0 [uid] => 598372 [username] => tongshaoqiang [groupid] => 34 [adminid] => 0 [regdate] => 2009-11-13 [credits] => 2772 [email] => tongshaoqiang@163.com [memberstatus] => 0 [lastactivity] => 1406539542 [authorinvisible] => 0 [extcredits1] => 2772 [extcredits2] => 0 [extcredits3] => 2390 [extcredits4] => 0 [extcredits5] => 0 [extcredits6] => 0 [extcredits7] => 0 [extcredits8] => 0 [friends] => 15 [posts] => 918 [threads] => 139 [digestposts] => 0 [doings] => 0 [blogs] => 29 [albums] => 1 [sharings] => 0 [attachsize] => 942236 [views] => 62 [oltime] => 394 [todayattachs] => 0 [todayattachsize] => 0 [tcount] => 137 [ccount] => 135 [follower] => 0 [following] => 0 [newfollower] => 0 [gender] => 0 [site] => [icq] => [qq] => [yahoo] => [msn] => [taobao] => [alipay] => [medals] => Array ( [0] => Array ( [name] => 缘定三生 [image] => medal_24.gif [description] => 时间类勋章 [medalid] => 35 ) [1] => Array ( [name] => 技术奇才奖章 [image] => medal_29.gif [description] => 人才类勋章 [medalid] => 40 ) [2] => Array ( [name] => 精华达人奖章 [image] => medal_3.gif [description] => 等级类勋章 [medalid] => 14 ) [3] => Array ( [name] => 湍急之河流 [image] => medal_15.gif [description] => 发帖类勋章 [medalid] => 26 ) ) [signature] => [customstatus] => [thismonth] => 30 [total] => 23655 [privacy] => Array ( [profile] => Array ( [is_techxchange] => 0 [product] => 3 [realname] => 3 [gender] => 3 [birthday] => 3 [birthcity] => 3 [residecity] => 3 [qq] => 3 [yahoo] => 3 [msn] => 3 [taobao] => 3 [address] => 3 [zipcode] => 3 [telephone] => 3 [mobile] => 3 [graduateschool] => 3 [education] => 3 [company] => 3 [position] => 3 [revenue] => 3 [occupation] => 3 [interest_now] => 3 [use_now] => 3 [idcardtype] => 3 [idcard] => 3 [site] => 0 [bio] => 0 [interest] => 0 ) ) [verify1] => 0 [verify2] => 0 [verify3] => 0 [verify4] => 0 [verify5] => 0 [verify6] => 0 [verify7] => 0 [newpostanchor] => [lastpostanchor] => [number] => 10 [dbdateline] => 1270792058 [usernameenc] => tongshaoqiang [readaccess] => 90 [authortitle] => 初级工程师 [stars] => 6 [upgradecredit] => 228 [taobaoas] => [lastdate] => 2014-7-28 [authoras] => tongshaoqiang [avatar] => [groupicon] => [banned] => 0 [warned] => 0 [attachments] => Array ( ) [attachlist] => [imagelist] => [allowcomment] => 1 [custominfo] => Array ( [left] =>
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电压互感器对谐振回路的影响不比带电容补偿的电阻分压小。
10楼:
不敢当。坛里高手如云,有得是。
测量电流这个方法,过去常用的Q表里面就是这样测量的。其电阻是很细的一根直锰铜丝。 [useip] => 222.130.28.4 [invisible] => 0 [anonymous] => 0 [usesig] => 0 [htmlon] => 0 [bbcodeoff] => -1 [smileyoff] => -1 [parseurloff] => 0 [attachment] => 0 [rate] => 0 [ratetimes] => 0 [status] => 0 [tags] => 0 [comment] => 0 [replycredit] => 0 [uid] => 259938 [username] => maychang [groupid] => 3 [adminid] => 3 [regdate] => 2004-4-7 [credits] => 114379 [email] => maychang@tom.com [memberstatus] => 0 [lastactivity] => 1406726863 [authorinvisible] => 0 [extcredits1] => 64191 [extcredits2] => 0 [extcredits3] => 29724 [extcredits4] => 0 [extcredits5] => 50188 [extcredits6] => 0 [extcredits7] => 0 [extcredits8] => 0 [friends] => 148 [posts] => 29158 [threads] => 67 [digestposts] => 8 [doings] => 0 [blogs] => 0 [albums] => 0 [sharings] => 0 [attachsize] => 0 [views] => 1561 [oltime] => 6756 [todayattachs] => 2 [todayattachsize] => 132495 [tcount] => 8 [ccount] => 5 [follower] => 179 [following] => 0 [newfollower] => 179 [gender] => 1 [site] => [icq] => [qq] => [yahoo] => [msn] => [taobao] => [alipay] => [medals] => [signature] => [customstatus] => [thismonth] => 12210 [total] => 405955 [privacy] => Array ( [profile] => Array ( [is_techxchange] => 0 [product] => 3 [realname] => 3 [gender] => 3 [birthday] => 3 [birthcity] => 3 [residecity] => 3 [qq] => 3 [yahoo] => 3 [msn] => 3 [taobao] => 3 [address] => 3 [zipcode] => 3 [telephone] => 3 [mobile] => 3 [graduateschool] => 3 [education] => 3 [company] => 3 [position] => 3 [revenue] => 3 [occupation] => 3 [interest_now] => 3 [use_now] => 3 [idcardtype] => 3 [idcard] => 3 [site] => 0 [bio] => 0 [interest] => 0 ) ) [verify1] => 0 [verify2] => 0 [verify3] => 0 [verify4] => 0 [verify5] => 0 [verify6] => 0 [verify7] => 0 [newpostanchor] => [lastpostanchor] => [number] => 11 [dbdateline] => 1270795240 [usernameenc] => maychang [readaccess] => 100 [authortitle] => 版主 [stars] => 9 [upgradecredit] => [taobaoas] => [lastdate] => 2014-7-30 [authoras] => maychang [avatar] => [groupicon] => [banned] => 0 [warned] => 0 [attachments] => Array ( ) [attachlist] => [imagelist] => [allowcomment] => 1 [custominfo] => Array ( [left] =>
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这个测量还真是比较困难。
1MHz频率,电阻分压必定要电容补偿才准确,但加入电容肯定影响谐振频率。谐振回路电容也就是几十pF。
是否可以间接测量:在次级串联一个小电阻,测量电阻上的电流。这样可能对次级谐振回路 ...
maychang 发表于 2010-4-9 11:44

maychang前辈,我不是很明白你讲的。比如我要测的交流高压的有效值1000v,次级串联小电阻后测得其电流大概5ma,那么该电阻上的电压值0.1欧姆乘以0.005等于0.05mv,我不知道这个电压与1000v的比例关系是怎么样的。 [useip] => 123.128.177.176 [invisible] => 0 [anonymous] => 0 [usesig] => 0 [htmlon] => 0 [bbcodeoff] => 0 [smileyoff] => -1 [parseurloff] => 0 [attachment] => 0 [rate] => 0 [ratetimes] => 0 [status] => 0 [tags] => 0 [comment] => 0 [replycredit] => 0 [uid] => 598372 [username] => tongshaoqiang [groupid] => 34 [adminid] => 0 [regdate] => 2009-11-13 [credits] => 2772 [email] => tongshaoqiang@163.com [memberstatus] => 0 [lastactivity] => 1406539542 [authorinvisible] => 0 [extcredits1] => 2772 [extcredits2] => 0 [extcredits3] => 2390 [extcredits4] => 0 [extcredits5] => 0 [extcredits6] => 0 [extcredits7] => 0 [extcredits8] => 0 [friends] => 15 [posts] => 918 [threads] => 139 [digestposts] => 0 [doings] => 0 [blogs] => 29 [albums] => 1 [sharings] => 0 [attachsize] => 942236 [views] => 62 [oltime] => 394 [todayattachs] => 0 [todayattachsize] => 0 [tcount] => 137 [ccount] => 135 [follower] => 0 [following] => 0 [newfollower] => 0 [gender] => 0 [site] => [icq] => [qq] => [yahoo] => [msn] => [taobao] => [alipay] => [medals] => Array ( [0] => Array ( [name] => 缘定三生 [image] => medal_24.gif [description] => 时间类勋章 [medalid] => 35 ) [1] => Array ( [name] => 技术奇才奖章 [image] => medal_29.gif [description] => 人才类勋章 [medalid] => 40 ) [2] => Array ( [name] => 精华达人奖章 [image] => medal_3.gif [description] => 等级类勋章 [medalid] => 14 ) [3] => Array ( [name] => 湍急之河流 [image] => medal_15.gif [description] => 发帖类勋章 [medalid] => 26 ) ) [signature] => [customstatus] => [thismonth] => 30 [total] => 23655 [privacy] => Array ( [profile] => Array ( [is_techxchange] => 0 [product] => 3 [realname] => 3 [gender] => 3 [birthday] => 3 [birthcity] => 3 [residecity] => 3 [qq] => 3 [yahoo] => 3 [msn] => 3 [taobao] => 3 [address] => 3 [zipcode] => 3 [telephone] => 3 [mobile] => 3 [graduateschool] => 3 [education] => 3 [company] => 3 [position] => 3 [revenue] => 3 [occupation] => 3 [interest_now] => 3 [use_now] => 3 [idcardtype] => 3 [idcard] => 3 [site] => 0 [bio] => 0 [interest] => 0 ) ) [verify1] => 0 [verify2] => 0 [verify3] => 0 [verify4] => 0 [verify5] => 0 [verify6] => 0 [verify7] => 0 [newpostanchor] => [lastpostanchor] => [number] => 13 [dbdateline] => 1270884899 [usernameenc] => tongshaoqiang [readaccess] => 90 [authortitle] => 初级工程师 [stars] => 6 [upgradecredit] => 228 [taobaoas] => [lastdate] => 2014-7-28 [authoras] => tongshaoqiang [avatar] => [groupicon] => [banned] => 0 [warned] => 0 [attachments] => Array ( ) [attachlist] => [imagelist] => [allowcomment] => 1 [custominfo] => Array ( [left] =>
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频率已知,电感量已知或电容量已知(事先测量好),那么感抗或容抗可以计算出来(谐振时二者相等)。电流乘以感抗或容抗,就是电感或电容两端电压,交流电路的欧姆定律。 [useip] => 222.130.24.137 [invisible] => 0 [anonymous] => 0 [usesig] => 0 [htmlon] => 0 [bbcodeoff] => -1 [smileyoff] => -1 [parseurloff] => 0 [attachment] => 0 [rate] => 0 [ratetimes] => 0 [status] => 0 [tags] => 0 [comment] => 0 [replycredit] => 0 [uid] => 259938 [username] => maychang [groupid] => 3 [adminid] => 3 [regdate] => 2004-4-7 [credits] => 114379 [email] => maychang@tom.com [memberstatus] => 0 [lastactivity] => 1406726863 [authorinvisible] => 0 [extcredits1] => 64191 [extcredits2] => 0 [extcredits3] => 29724 [extcredits4] => 0 [extcredits5] => 50188 [extcredits6] => 0 [extcredits7] => 0 [extcredits8] => 0 [friends] => 148 [posts] => 29158 [threads] => 67 [digestposts] => 8 [doings] => 0 [blogs] => 0 [albums] => 0 [sharings] => 0 [attachsize] => 0 [views] => 1561 [oltime] => 6756 [todayattachs] => 2 [todayattachsize] => 132495 [tcount] => 8 [ccount] => 5 [follower] => 179 [following] => 0 [newfollower] => 179 [gender] => 1 [site] => [icq] => [qq] => [yahoo] => [msn] => [taobao] => [alipay] => [medals] => [signature] => [customstatus] => [thismonth] => 12210 [total] => 405955 [privacy] => Array ( [profile] => Array ( [is_techxchange] => 0 [product] => 3 [realname] => 3 [gender] => 3 [birthday] => 3 [birthcity] => 3 [residecity] => 3 [qq] => 3 [yahoo] => 3 [msn] => 3 [taobao] => 3 [address] => 3 [zipcode] => 3 [telephone] => 3 [mobile] => 3 [graduateschool] => 3 [education] => 3 [company] => 3 [position] => 3 [revenue] => 3 [occupation] => 3 [interest_now] => 3 [use_now] => 3 [idcardtype] => 3 [idcard] => 3 [site] => 0 [bio] => 0 [interest] => 0 ) ) [verify1] => 0 [verify2] => 0 [verify3] => 0 [verify4] => 0 [verify5] => 0 [verify6] => 0 [verify7] => 0 [newpostanchor] => [lastpostanchor] => [number] => 14 [dbdateline] => 1270887976 [usernameenc] => maychang [readaccess] => 100 [authortitle] => 版主 [stars] => 9 [upgradecredit] => [taobaoas] => [lastdate] => 2014-7-30 [authoras] => maychang [avatar] => [groupicon] => [banned] => 0 [warned] => 0 [attachments] => Array ( ) [attachlist] => [imagelist] => [allowcomment] => 1 [custominfo] => Array ( [left] =>
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这个图有个明显的错误:出于安全需要,变压器两边不能是同一个地。 [useip] => 124.226.177.148 [invisible] => 0 [anonymous] => 0 [usesig] => 0 [htmlon] => 0 [bbcodeoff] => 0 [smileyoff] => -1 [parseurloff] => 0 [attachment] => 0 [rate] => 0 [ratetimes] => 0 [status] => 0 [tags] => 0 [comment] => 0 [replycredit] => 0 [uid] => 201208 [username] => iC921 [groupid] => 3 [adminid] => 3 [regdate] => 2003-11-10 [credits] => 94047 [email] => ic921@sina.com [memberstatus] => 0 [lastactivity] => 1335508578 [authorinvisible] => 0 [extcredits1] => 20898 [extcredits2] => 0 [extcredits3] => 7980 [extcredits4] => 0 [extcredits5] => 73149 [extcredits6] => 0 [extcredits7] => 0 [extcredits8] => 0 [friends] => 374 [posts] => 17414 [threads] => 781 [digestposts] => 34 [doings] => 0 [blogs] => 996 [albums] => 9 [sharings] => 0 [attachsize] => 0 [views] => 583 [oltime] => 1079 [todayattachs] => 0 [todayattachsize] => 0 [tcount] => 144 [ccount] => 55 [follower] => 0 [following] => 0 [newfollower] => 0 [gender] => 0 [site] => [icq] => [qq] => [yahoo] => [msn] => [taobao] => [alipay] => [medals] => [signature] => [customstatus] => [thismonth] => 0 [total] => 64755 [privacy] => Array ( [profile] => Array ( [is_techxchange] => 0 [product] => 3 [realname] => 3 [gender] => 3 [birthday] => 3 [birthcity] => 3 [residecity] => 3 [qq] => 3 [yahoo] => 3 [msn] => 3 [taobao] => 3 [address] => 3 [zipcode] => 3 [telephone] => 3 [mobile] => 3 [graduateschool] => 3 [education] => 3 [company] => 3 [position] => 3 [revenue] => 3 [occupation] => 3 [interest_now] => 3 [use_now] => 3 [idcardtype] => 3 [idcard] => 3 [site] => 0 [bio] => 0 [interest] => 0 ) ) [verify1] => 0 [verify2] => 0 [verify3] => 0 [verify4] => 0 [verify5] => 0 [verify6] => 0 [verify7] => 0 [newpostanchor] => [lastpostanchor] => [number] => 16 [dbdateline] => 1271327316 [usernameenc] => iC921 [readaccess] => 100 [authortitle] => 版主 [stars] => 9 [upgradecredit] => [taobaoas] => [lastdate] => 2012-4-27 [authoras] => iC921 [avatar] => [groupicon] => [banned] => 0 [warned] => 0 [attachments] => Array ( ) [attachlist] => [imagelist] => [allowcomment] => 1 [custominfo] => Array ( [left] =>
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实验时可以这样,但如果做成产品就不行了,那还得附带示波器。你说呢。 [useip] => 123.128.177.176 [invisible] => 0 [anonymous] => 0 [usesig] => 0 [htmlon] => 0 [bbcodeoff] => 0 [smileyoff] => -1 [parseurloff] => 0 [attachment] => 0 [rate] => 0 [ratetimes] => 0 [status] => 0 [tags] => 0 [comment] => 0 [replycredit] => 0 [uid] => 598372 [username] => tongshaoqiang [groupid] => 34 [adminid] => 0 [regdate] => 2009-11-13 [credits] => 2772 [email] => tongshaoqiang@163.com [memberstatus] => 0 [lastactivity] => 1406539542 [authorinvisible] => 0 [extcredits1] => 2772 [extcredits2] => 0 [extcredits3] => 2390 [extcredits4] => 0 [extcredits5] => 0 [extcredits6] => 0 [extcredits7] => 0 [extcredits8] => 0 [friends] => 15 [posts] => 918 [threads] => 139 [digestposts] => 0 [doings] => 0 [blogs] => 29 [albums] => 1 [sharings] => 0 [attachsize] => 942236 [views] => 62 [oltime] => 394 [todayattachs] => 0 [todayattachsize] => 0 [tcount] => 137 [ccount] => 135 [follower] => 0 [following] => 0 [newfollower] => 0 [gender] => 0 [site] => [icq] => [qq] => [yahoo] => [msn] => [taobao] => [alipay] => [medals] => Array ( [0] => Array ( [name] => 缘定三生 [image] => medal_24.gif [description] => 时间类勋章 [medalid] => 35 ) [1] => Array ( [name] => 技术奇才奖章 [image] => medal_29.gif [description] => 人才类勋章 [medalid] => 40 ) [2] => Array ( [name] => 精华达人奖章 [image] => medal_3.gif [description] => 等级类勋章 [medalid] => 14 ) [3] => Array ( [name] => 湍急之河流 [image] => medal_15.gif [description] => 发帖类勋章 [medalid] => 26 ) ) [signature] => [customstatus] => [thismonth] => 30 [total] => 23655 [privacy] => Array ( [profile] => Array ( [is_techxchange] => 0 [product] => 3 [realname] => 3 [gender] => 3 [birthday] => 3 [birthcity] => 3 [residecity] => 3 [qq] => 3 [yahoo] => 3 [msn] => 3 [taobao] => 3 [address] => 3 [zipcode] => 3 [telephone] => 3 [mobile] => 3 [graduateschool] => 3 [education] => 3 [company] => 3 [position] => 3 [revenue] => 3 [occupation] => 3 [interest_now] => 3 [use_now] => 3 [idcardtype] => 3 [idcard] => 3 [site] => 0 [bio] => 0 [interest] => 0 ) ) [verify1] => 0 [verify2] => 0 [verify3] => 0 [verify4] => 0 [verify5] => 0 [verify6] => 0 [verify7] => 0 [newpostanchor] => [lastpostanchor] => [number] => 18 [dbdateline] => 1271485340 [usernameenc] => tongshaoqiang [readaccess] => 90 [authortitle] => 初级工程师 [stars] => 6 [upgradecredit] => 228 [taobaoas] => [lastdate] => 2014-7-28 [authoras] => tongshaoqiang [avatar] => [groupicon] => [banned] => 0 [warned] => 0 [attachments] => Array ( ) [attachlist] => [imagelist] => [allowcomment] => 1 [custominfo] => Array ( [left] =>
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http://bbs.21ic.com/attachments/month_1004/1004090812dd8a28f5bdc9c92c.jpg

这个图有个明显的错误:出于安全需要,变压器两边不能是同一个地。
iC921 发表于 2010-4-15 18:28



我的功放,是买的商品仪器,他的输出用BNC头引出,信号的地通过BNC接头联入仪器外壳,也就是接入了大地。
空心变压器的次级输出峰峰值6000vpp(中间抽头接大地,分成正负3000vpp输出),有效值算算也得有1000v了,为了安全考虑,他的参考地也得接入大地。
把空心变压器前后地分开,那我该怎么办呢? [useip] => 123.128.177.176 [invisible] => 0 [anonymous] => 0 [usesig] => 0 [htmlon] => 0 [bbcodeoff] => 0 [smileyoff] => -1 [parseurloff] => 0 [attachment] => 0 [rate] => 0 [ratetimes] => 0 [status] => 0 [tags] => 0 [comment] => 0 [replycredit] => 0 [uid] => 598372 [username] => tongshaoqiang [groupid] => 34 [adminid] => 0 [regdate] => 2009-11-13 [credits] => 2772 [email] => tongshaoqiang@163.com [memberstatus] => 0 [lastactivity] => 1406539542 [authorinvisible] => 0 [extcredits1] => 2772 [extcredits2] => 0 [extcredits3] => 2390 [extcredits4] => 0 [extcredits5] => 0 [extcredits6] => 0 [extcredits7] => 0 [extcredits8] => 0 [friends] => 15 [posts] => 918 [threads] => 139 [digestposts] => 0 [doings] => 0 [blogs] => 29 [albums] => 1 [sharings] => 0 [attachsize] => 942236 [views] => 62 [oltime] => 394 [todayattachs] => 0 [todayattachsize] => 0 [tcount] => 137 [ccount] => 135 [follower] => 0 [following] => 0 [newfollower] => 0 [gender] => 0 [site] => [icq] => [qq] => [yahoo] => [msn] => [taobao] => [alipay] => [medals] => Array ( [0] => Array ( [name] => 缘定三生 [image] => medal_24.gif [description] => 时间类勋章 [medalid] => 35 ) [1] => Array ( [name] => 技术奇才奖章 [image] => medal_29.gif [description] => 人才类勋章 [medalid] => 40 ) [2] => Array ( [name] => 精华达人奖章 [image] => medal_3.gif [description] => 等级类勋章 [medalid] => 14 ) [3] => Array ( [name] => 湍急之河流 [image] => medal_15.gif [description] => 发帖类勋章 [medalid] => 26 ) ) [signature] => [customstatus] => [thismonth] => 30 [total] => 23655 [privacy] => Array ( [profile] => Array ( [is_techxchange] => 0 [product] => 3 [realname] => 3 [gender] => 3 [birthday] => 3 [birthcity] => 3 [residecity] => 3 [qq] => 3 [yahoo] => 3 [msn] => 3 [taobao] => 3 [address] => 3 [zipcode] => 3 [telephone] => 3 [mobile] => 3 [graduateschool] => 3 [education] => 3 [company] => 3 [position] => 3 [revenue] => 3 [occupation] => 3 [interest_now] => 3 [use_now] => 3 [idcardtype] => 3 [idcard] => 3 [site] => 0 [bio] => 0 [interest] => 0 ) ) [verify1] => 0 [verify2] => 0 [verify3] => 0 [verify4] => 0 [verify5] => 0 [verify6] => 0 [verify7] => 0 [newpostanchor] => [lastpostanchor] => [number] => 19 [dbdateline] => 1271485652 [usernameenc] => tongshaoqiang [readaccess] => 90 [authortitle] => 初级工程师 [stars] => 6 [upgradecredit] => 228 [taobaoas] => [lastdate] => 2014-7-28 [authoras] => tongshaoqiang [avatar] => [groupicon] => [banned] => 0 [warned] => 0 [attachments] => Array ( ) [attachlist] => [imagelist] => [allowcomment] => 1 [custominfo] => Array ( [left] =>
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13楼:
频率已知,电感量已知或电容量已知(事先测量好),那么感抗或容抗可以计算出来(谐振时二者相等)。电流乘以感抗或容抗,就是电感或电容两端电压,交流电路的欧姆定律。 ...
maychang 发表于 2010-4-10 16:26

谐振时,电感电容两端峰峰值电压最高,但是由于输入信号的频率是可调的,我要测量的是个随输入频率变化的电压,所以电感电容两端的阻抗是变化的。如果每次因为输入频率变化再计算相应的阻,不是很直观。 [useip] => 119.179.175.219 [invisible] => 0 [anonymous] => 0 [usesig] => 0 [htmlon] => 0 [bbcodeoff] => 0 [smileyoff] => -1 [parseurloff] => 0 [attachment] => 0 [rate] => 0 [ratetimes] => 0 [status] => 0 [tags] => 0 [comment] => 0 [replycredit] => 0 [uid] => 598372 [username] => tongshaoqiang [groupid] => 34 [adminid] => 0 [regdate] => 2009-11-13 [credits] => 2772 [email] => tongshaoqiang@163.com [memberstatus] => 0 [lastactivity] => 1406539542 [authorinvisible] => 0 [extcredits1] => 2772 [extcredits2] => 0 [extcredits3] => 2390 [extcredits4] => 0 [extcredits5] => 0 [extcredits6] => 0 [extcredits7] => 0 [extcredits8] => 0 [friends] => 15 [posts] => 918 [threads] => 139 [digestposts] => 0 [doings] => 0 [blogs] => 29 [albums] => 1 [sharings] => 0 [attachsize] => 942236 [views] => 62 [oltime] => 394 [todayattachs] => 0 [todayattachsize] => 0 [tcount] => 137 [ccount] => 135 [follower] => 0 [following] => 0 [newfollower] => 0 [gender] => 0 [site] => [icq] => [qq] => [yahoo] => [msn] => [taobao] => [alipay] => [medals] => Array ( [0] => Array ( [name] => 缘定三生 [image] => medal_24.gif [description] => 时间类勋章 [medalid] => 35 ) [1] => Array ( [name] => 技术奇才奖章 [image] => medal_29.gif [description] => 人才类勋章 [medalid] => 40 ) [2] => Array ( [name] => 精华达人奖章 [image] => medal_3.gif [description] => 等级类勋章 [medalid] => 14 ) [3] => Array ( [name] => 湍急之河流 [image] => medal_15.gif [description] => 发帖类勋章 [medalid] => 26 ) ) [signature] => [customstatus] => [thismonth] => 30 [total] => 23655 [privacy] => Array ( [profile] => Array ( [is_techxchange] => 0 [product] => 3 [realname] => 3 [gender] => 3 [birthday] => 3 [birthcity] => 3 [residecity] => 3 [qq] => 3 [yahoo] => 3 [msn] => 3 [taobao] => 3 [address] => 3 [zipcode] => 3 [telephone] => 3 [mobile] => 3 [graduateschool] => 3 [education] => 3 [company] => 3 [position] => 3 [revenue] => 3 [occupation] => 3 [interest_now] => 3 [use_now] => 3 [idcardtype] => 3 [idcard] => 3 [site] => 0 [bio] => 0 [interest] => 0 ) ) [verify1] => 0 [verify2] => 0 [verify3] => 0 [verify4] => 0 [verify5] => 0 [verify6] => 0 [verify7] => 0 [newpostanchor] => [lastpostanchor] => [number] => 20 [dbdateline] => 1272415620 [usernameenc] => tongshaoqiang [readaccess] => 90 [authortitle] => 初级工程师 [stars] => 6 [upgradecredit] => 228 [taobaoas] => [lastdate] => 2014-7-28 [authoras] => tongshaoqiang [avatar] => [groupicon] => [banned] => 0 [warned] => 0 [attachments] => Array ( ) [attachlist] => [imagelist] => [allowcomment] => 1 [custominfo] => Array ( [left] =>
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