Question

The gauge factor of semiconductor strain gauge is in the range of:

• A. 2 to 10
• B. 100 to 150
• C. more than 200
• D. 50 to 100

Hint:

Semiconductor strain gauges are much more sensitive than metallic ones, which is why their gauge factors are much higher (typically between 100 to 150).

Answer 1

The Correct Option is B

The gauge factor of a semiconductor strain gauge is a measure of its sensitivity, defined as the ratio of the relative change in electrical resistance to the strain applied.
For semiconductor strain gauges, the gauge factor is typically much higher compared to metallic strain gauges. The usual range for the gauge factor of semiconductor strain gauges is between 100 to 150.
- A gauge factor of 2 to 10 is typical for metallic strain gauges.
- A gauge factor of more than 200 is unusually high for standard semiconductor gauges.
- The range 50 to 100 is lower than the typical range for semiconductor gauges.
Therefore, the correct answer is 100 to 150.