Question

What is difference different type of strain gauges and their disadvantages ?

Answer 1

→Types of Strain Gauges

1. Unbonded metal strain gauges

2. Bonded metal wire strain gauges

3. Bonded metal foil strain gauges

4. Vacuum deposited thin metal film strain gauges

5. Sputter deposited thin metal strain gauges

6. Bonded semiconductor strain gauges

7. Diffused metal strain gauges.

→ disadvantages of strain guage

★ cannot measure multi direction loads

★ their performance is affected by humidity and temperature

★ too sensitive to get overload and damaged