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How does clinical thermometer work?

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How does clinical thermometer work?

Posted by Prachi Pahade 6 years, 11 months ago

CBSE > Class 07 > Science

1 answers

Payal Singh 6 years, 11 months ago

The earliest clinical thermometers were mercury based, consisting of a small bulb filled with mercury and connected to a thin glass neck. As the temperature rises, the mercury expands, causing it to be forced up the neck.

However, due to the toxicity of mercury and the danger of these thermometers breaking, many clinical thermometers use other methods to determine temperature, such as infrared energy.

These clinical thermometers use an instrument called a thermopile to detect infrared energy, which is directly related to temperature. The thermometer then converts the measurements from the thermopile to temperature.

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