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Is the output of PH sensor linear with voltage or not?

Is the output of PH sensor linear with voltage or not?

Postby Star » Mon Dec 01, 2008 8:36 am

Hi all,
I want to design a PH datalogger with the output is linear with voltage. I want to know whether the output of PH sensor linear with voltage or not.
Best Regards,
Star
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Postby Robin » Mon Dec 01, 2008 1:03 pm

Hi

The output of the PH sensor is not linear. The DrDAQ uses a look-up table used to convert the measured voltage to a PH value.

I believe this is the case for all PH sensors / measurement devices.

Robin
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