Dummy Strain Gauges for Compensation of Temperature Changes

Introduction:
Strain gauges are electronic devices that are used to measure the strain or deformation in a material. They are widely used in industries for measuring the stress in various machines and equipment. However, strain gauges are sensitive to temperature changes and can give an inaccurate reading if the temperature changes significantly. To compensate for this, dummy strain gauges are used.

What are Dummy Strain Gauges?
Dummy strain gauges are similar to regular strain gauges, but they are not connected to the measurement circuit. Instead, they are added to the bridge circuit to compensate for the temperature changes.

How do Dummy Strain Gauges Work?
Dummy strain gauges are placed in the same environment as the actual strain gauges. When the temperature changes, the dummy strain gauges also experience the same change in resistance as the actual strain gauges. As a result, the resistance of the dummy strain gauges changes and compensates for the temperature changes in the actual strain gauges.

Benefits of Using Dummy Strain Gauges:
Dummy strain gauges offer several benefits, including:

- Compensation of temperature changes: As mentioned earlier, dummy strain gauges compensate for the temperature changes in the actual strain gauges. As a result, the measurement remains accurate even if the temperature changes significantly.

- Improved accuracy: Dummy strain gauges improve the accuracy of the measurement by compensating for the temperature changes.

- Cost-effective: Dummy strain gauges are cost-effective compared to other methods of compensating for temperature changes.

Conclusion:
Dummy strain gauges are an essential component of strain gauge measurement systems. They compensate for temperature changes and improve the accuracy of the measurement. They are cost-effective and easy to use, making them a popular choice in industries that use strain gauges.