[放大器-信号链] 不同应用的传感器类型

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 楼主| jeff-wang 发表于 2012-4-14 10:56 | 显示全部楼层 |阅读模式
Physical Property Measured

SENSOR

Active/Passive

Output

Temperature

Thermocouple


Passive

Voltage



RTD

Active

Resistance=> Current



Thermistor

Active

Resistance=> Current



Silicon

Active

Voltage/Current

Pressure/Force

Strain Gage: Resistive

Active

Resistance=> Current



Stain Gage: Capacitive

Active

Capacitance=>Voltage



Piezoelectric

Passive

Voltage

Flow

Magnetic Inductive

Active

Voltage



Coriolis

Active



Voltage

Acceleration

Accelerometer

Active



Capacitance=> Voltage

Position

LVDT

Active



AC Voltage

Optical

Photodiode

Passive

Current

 楼主| jeff-wang 发表于 2012-4-14 10:57 | 显示全部楼层

Type

Example

Sample TI Solution

Attributes

Resistive





RTD/Thermistor, Strain gage (Pressure sensor)

PGA309,

ADS1232, ADS1248,ADS1232

Zero-drift, Low Voffset, Complete single chip conditioning solution

Capacitive

Humidity sensor, Level sensor

*PGA450

Sync demodulation Programmable Cal routine

Magnetic/Inductive



Coriolis
Flowmeter, Electromagnetic Flowmeter, Proximity sensor

ADS1274, ADS1259,ADS7786

Differential signal path , High sampling speed, Multiple input channels

Current



Photodetector,
Chemical sensors

OPA129, OPA320,OPT101

ADS1259

Low input bias current , Low temp-coefficient

Thermocouple

J,K,B,N,R,S,E

ADS1248,ADS1118

Low Voffset, Low drift, High Vcm, Cold junction compensation, Low noise at sub100Hz

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