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Measure the resistance change of a potentiometer

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veado
veado 2016-6-27
回答： Emmanuel Aykara 2019-11-15
I'm using MATLAB 2015a.
I connected a potentiometer (Amphenol 4201B-10k) to a NI 9219 module using 2-wire resistance mode. I tried to acquire the resistance change of the potentiometer.
However, the measurement types only support 'Voltage', 'Current', 'Thermocouple', 'RTD', and 'Bridge'.
It seems that the 'resistance' is not on the list: http://uk.mathworks.com/help/daq/ref/measurementtype.html
How could I acquire the resistance change using MATLAB?
Thanks.
  1 个评论
Gabriel Werr
Gabriel Werr 2018-10-25
I'm also struggling with this problem for a custom RTD. Matlab made me go back to LabView for this!

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回答（1 个）

Emmanuel Aykara
Emmanuel Aykara 2019-11-15
I believe that you can use the voltage and current measurement to get the resistance using the simple equation of
Voltage = Current x Resistance (V=IR)

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