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How do digital thermometers know what the temperature is?

Updated: 8/20/2019
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10y ago

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A computer inside a digital thermometer measures the conductivity of the thermistor, which is a heat-sensitive electric conductor. The higher the temperature, the more conductive the thermistor is, and that reading is calculated and displayed by the computer.

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Q: How do digital thermometers know what the temperature is?
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