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

 
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Star
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Joined: 01 Dec 2008
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PostPosted: Mon Dec 01, 2008 8:36 am    Post subject: Is the output of PH sensor linear with voltage or not? Reply with quote
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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Robin
Site Admin
Site Admin


Joined: 19 Sep 2008
Posts: 92

PostPosted: Mon Dec 01, 2008 1:03 pm    Post subject: Reply with quote
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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