Numerical 3 - Gauge Factor Calculation - Strain Measurement - Transducer -2

TL;DR

Calculate the gauge factor by finding the change in resistance and strain, using the formula delta R/R divided by delta L/L.

Transcript

hello students today we are going to solve some numericals based on gauge factor i am here with the third numerical and in this numerical you have to calculate gauge factor so let us read the problem the problem is like this the resistance of 125 ohm strain gauge is changed by 1 ohm changed by 1 ohm when subjected to a strain of 4000 micron 4000 mi... Read More

Key Insights

• 🧑‍🏭 The gauge factor is used to measure the sensitivity of a strain gauge.
• 🧑‍🏭 The formula for the gauge factor is delta R/R divided by delta L/L.
• ❓ In the problem, the resistance of the strain gauge is 125 ohms.
• 💱 The change in resistance is 1 ohm and the strain is given as 4000 micron.

Questions & Answers

Q: What is the formula for calculating the gauge factor?

The formula for the gauge factor is delta R/R divided by delta L/L, where delta R is the change in resistance and delta L is the change in length.

Q: What is the resistance of the strain gauge in the problem?

The resistance of the strain gauge is given as 125 ohms.

Q: How is the strain in the problem represented?

The strain is represented by epsilon, which is calculated by multiplying the given strain of 4000 micron by 10 to the power of minus 6.

Q: What is the final value of the gauge factor in the problem?

The final value of the gauge factor is 2.

Summary & Key Takeaways

• The problem involves calculating the gauge factor based on the given resistance and change in resistance of a strain gauge.

• The resistance of the strain gauge is provided as 125 ohms, and the change in resistance is 1 ohm.

• A strain of 4000 micron is applied, which is converted to epsilon, and then used to calculate the final gauge factor.