Most strain gauges are made from a constantan alloy.
2.
He invented two alloys, constantan and manganin.
3.
Constantan [ Cu55Ni45 ] has a low temperature coefficient of resistivity and as a copper alloy, is easily soldered.
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Various constantan alloys and Karma alloys have been designed so that the temperature effects on the resistance of the strain gauge itself cancel out the resistance change of the gauge due to the thermal expansion of the object under test.
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In constantan strain gauges ( the most commercially popular ), the effect accounts for 20 % of the gauge factor, but in silicon gauges, the contribution of the piezoresistive term is much larger than the geometric terms.
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The commonly used nichrome for instance, at 32 AWG has a resistance of about 30 ohm / metre and constantan is about half that . 100 kohm / m is more like a poor insulator than a conducting wire, the sort of conductivity one gets from conductive plastic ( why is that a redlink ? someone write an article please ) . "'
Meaning
an alloy of copper and nickel with high electrical resistance and a low temperature coefficient; used as resistance wire Synonyms: Eureka,
How to say constantan in Hindi and what is the meaning of constantan in Hindi? constantan Hindi meaning, translation, pronunciation, synonyms and example sentences are provided by Hindlish.com.
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