How to calculate the real value of Beta for your actual thermistor - including a spreadsheet - and an explanation of the maths involved.
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How To Find An Expression For Beta

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How To Use
The Spreadsheet
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To predict Thermistor Resistance - the spreadsheet needs an expression for ßeta. This expression is derived from the formula for R2 published in the data sheets. How the formula for R2 becomes a formula for ßeta - is explained below.


Formula To Calculate The Temperature 
Constant Of A Thermistor


  Where: -

  1. R1 is the resistance in ohms at t1 (°K)
  2. R2 is the resistance in ohms at t2 (°K)
  3. ß is the temperature constant
  4. Deg K = Deg C + 273
  5. e = 2.7184


How To Predict The Resistance Of A Thermistor At A Specific Temperature

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Spreadsheet   (80k)
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