The output of a thermistor is highly nonlinear with temperature, and there is often a benefit to linearizing the output

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The Output Of A Thermistor Is Highly Nonlinear With Temperature And There Is Often A Benefit To Linearizing The Output 1 (153.83 KiB) Viewed 45 times

The output of a thermistor is highly nonlinear with temperature, and there is often a benefit to linearizing the output through appropriate circuit, whether active or passive. In this example, we examine the output of an initially balanced bridge circuit in which one of the arms contains a thermistor. Consider a Wheatstone bridge as shown in Figure 8.8, but replace the RTD with a thermistor having a value of R = 10,000 22 with B = 3680 K. Here, we examine the output of the circuit over two temperature ranges: (a) 25–325°C and (b) 25–75°C. KNOWN A Wheatstone bridge where R2 = R3 = R4 = 10,000 22 and where R, is a thermistor. FIND The output of the bridge circuit as a function of temperature.