The Bimetal thermometer employs a bimetal strip in the form of a helix (it works on the principle of thermal expansion - two metals having a different coefficient of expansions are joined to form a bimetal. The resultant expansion of bimetal is proportional to temperature). Bimetal dial thermometers are simple in construction, yet rugged. https://www.generalinstruments.net/temperature-guage
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- December 19, 2019
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