Gauge Factor - Definition, Formula, and Values | New Topic - Poly Notes Hub
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In this note, we are going to learn about the Gauge Factor of a strain gauge. Also, the Formula of the gauge factor and its values. Welcome to Poly Notes Hub , a leading destination for polytechnic engineering notes.
Author Name: Arun Paul .
What is Gauge Factor?
Gauge factor (GF) is the ratio of relative change in electrical resistance to the mechanical strain.
Formula of Gauge Factor:
Where:
ΔR = Change in resistance
R = Original resistance
ε = Strain
Gauge Factor Range of Metal and Semiconductor Strain Gauge
Type of Strain Gauge Gauge Factor (GF) Range Description Metal Strain Gauge 2 – 5 Commonly used strain gauge made from metallic alloys like constantan or nichrome. It has good stability and moderate sensitivity. Semiconductor Strain Gauge 50 – 200 Made from semiconductor materials like silicon or germanium. It has very high sensitivity but is more affected by temperature changes.
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Gauge Factor - Definition, Formula, and Values | New Topic - Poly Notes Hub
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Gauge Factor - Definition, Formula, and Values | New Topic - Poly Notes Hub
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