NTC calibration and multiple temperature sensors

Introduction

Calibration of NTC sensors and different

NTC

Note that the temperature of the sensor rises when the current supplies through the resistor. The NTC is nonlinear; see below Calibration.

Negative Temperature Coefficient, NTCLE100E3101JB0 or similar (MF52B NTC Thermistor). The NTC is connected in series with a "shunt" resistor Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle R_1} , see Measurement of resistors: voltage divider. Usually Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle R_1 = 10kOhms} is used. The total resistance of the circuit is $R=R_{1}+R_{NTC}$, which gives

Failed to parse (Conversion error. Server ("https://wikimedia.org/api/rest_") reported: "Cannot get mml. Server problem."): {\displaystyle {\begin{aligned}R_{NTC}&={\frac {U_{\text{measured}}}{U-U_{\text{measured}}}}R_{1}\\\end{aligned}}}

Failed to parse (Conversion error. Server ("https://wikimedia.org/api/rest_") reported: "Cannot get mml. Server problem."): {\displaystyle {\begin{aligned}R_{NTC}&={\frac {U_{\text{measured}}}{U-U_{\text{measured}}}}R_{1}\\\end{aligned}}}

Calibrating: Steinhart-Hart Equation

Steinhart-Hart equation is widely used

${\frac {1}{T}}=A+B\ln(Rt)+C(\ln(Rt))^{3}$

= LM35DZ

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