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3 Thermistor/thermocouple Problem 3.1 Voltage dividing circuits Thermistors are carbon-film resistors with a large resistance change with temperature. Given that computers are only able to read voltages, a method for indirectly determining the resistance is needed. One of the simplest methods, though not the most accurate (bridge circuits are superior), is the voltage dividing circuit. For the circuit shown, determine the resistance of the thermistor. The supply voltage is 5 V, the precision resistor (R1) has a value of 5.6 k2, and the measured voltage across the thermistor is 540 mv. R1 + Vs Rt Vout Problem 3.2 Thermocouples Thermocouples are divided into types based on construction and operating conditions, of which the most common is the Type K thermocouple. Values of the thermoelectric voltage for any measured temperature can be looked up in standard tables constructed by NIST. What is the composition of a Type Kthermocouple? Find the expected voltage for a temperature of 73 °C. Cite your data table source.
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Problem 3.1: Voltage dividing circuits
Thermistors are carbon-film resistors with a large resistance change with temperature. Given that
computers are only able to read voltages, a method for indirectly determining the resistance is
needed. One of the simplest methods, though not the most accurate (bridge circuits are superior),
is the voltage dividing circuit.
For the circuit show...


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