Subject:
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Re: 3-wire converter for homebrew sensors
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 25 Mar 1999 17:13:03 GMT
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Viewed:
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1054 times
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In lugnet.robotics, Dennis Clark writes:
> Ahh, but the stipulated purpose for Pete's sensor brick is that it gives
> a _linear_ response that isn't corrupted by the non-linear diode drop
It is a heck of a lot of complexity for a little added linearity. If you look
at the plots on my general purpose interface section; the simple resistor
interface is pretty linear. I think most of the nonlinearity in the powered
version is due to the cheap LM324 I used. A better opamp would produce better
results.
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Message is in Reply To:
 | | Re: 3-wire converter for homebrew sensors
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| (...) [snip] (...) Ahh, but the stipulated purpose for Pete's sensor brick is that it gives a _linear_ response that isn't corrupted by the non-linear diode drop caused by currents that are often less than 2ma and perhaps not past the "knee" region (...) (26 years ago, 25-Mar-99, to lugnet.robotics)
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