Logging +5V to -5V analog signal

D153, D175, C125, C127, C185 and C187 forum

Logging +5V to -5V analog signal

Postby FrankL on Mon Sep 14, 2020 10:21 am

Hello

I need to log an analog signal coming from an external module converting signal from wireless torque cell, the values varies from +5V to -5V.
Is there any way to log a +5V to -5V with a C187 without using an external conversion module?

Thanks, Frank
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Re: Logging +5V to -5V analog signal

Postby David Ferguson on Tue Sep 15, 2020 3:33 am

Your going to need to shift the voltage, normally strain gauge amplifiers would have the ability to add an offset voltage.
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