Thermistor Temperature
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Hello, I use Arduino Uno to read the voltage change across a Thermistor terminals. To read The temperature, I would use Steinhart–Hart equation: I/T=A + B LnR + C (Ln R)^3 to convert voltage to temp, I can write this equation using C++ via Arduino IDE, then I'll get the Temperature. My question is: how to do it without using the Arduino, I mean using only electronic components, what is the circuit design that can give me a Ln or cubic power? Thank you
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Hello, I use Arduino Uno to read the voltage change across a Thermistor terminals. To read The temperature, I would use Steinhart–Hart equation: I/T=A + B LnR + C (Ln R)^3 to convert voltage to temp, I can write this equation using C++ via Arduino IDE, then I'll get the Temperature. My question is: how to do it without using the Arduino, I mean using only electronic components, what is the circuit design that can give me a Ln or cubic power? Thank you
The short answer is to start with Log amplifier - Wikipedia[^]. You can assemble a bunch of them to do the trick, but that is really doing tings the hard way. For limited temperature spans, there are simpler approximations for linearizing to a reasonable accuracy. Feed any search engine with "linearize thermistor"
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
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The short answer is to start with Log amplifier - Wikipedia[^]. You can assemble a bunch of them to do the trick, but that is really doing tings the hard way. For limited temperature spans, there are simpler approximations for linearizing to a reasonable accuracy. Feed any search engine with "linearize thermistor"
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
To linearize a thermistor, a logarithmic amplifier can work, but it's often more complex than necessary
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The short answer is to start with Log amplifier - Wikipedia[^]. You can assemble a bunch of them to do the trick, but that is really doing tings the hard way. For limited temperature spans, there are simpler approximations for linearizing to a reasonable accuracy. Feed any search engine with "linearize thermistor"
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
Thank you, your answer is helpful