本帖最后由 tyw 于 2025-10-21 19:09 编辑
Kelvin (4-wire) Resistance Measurement ?
Kelvin sensing, is a technique that uses two separate pairs of wires to exclude lead and contact resistance from the voltage measurement, ensuring higher accuracy. Two leads inject current, while two separate leads sense the voltage directly at the device under test, removing voltage drops from the current leads and increasing precision. This method is vital for measuring low resistance or when working with long wires where resistance errors are significant.
开尔文(4线)电阻测量？
开尔文检测是一种技术，使用两对独立的导线从电压测量中排除引线和接触电阻，确保更高的精度。两条引线注入电流，而两条独立的引线直接检测被测器件的电压，消除电流引线的压降，提高精度。这种方法对于测量低电阻或在电阻误差较大的情况下使用长导线时至关重要。
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