How to calculate the real value of Beta for your actual thermistor - including a spreadsheet - and an explanation of the maths involved.
To predict Thermistor Resistance - the spreadsheet needs an expression for ßeta. This expression is derived from the formula for R_{2} published in the data sheets. How the formula for R_{2} becomes a formula for ßeta - is explained below.
Where: -
- R_{1} is the resistance in ohms at t_{1} (°K)
- R_{2} is the resistance in ohms at t_{2} (°K)
- ß is the temperature constant
- Deg K = Deg C + 273
- e = 2.7184
How To Predict The Resistance Of A Thermistor At A Specific Temperature