What bridge configuration do you have for strain gauges?

Quarter bridge configuration
The quarter configuration consists of 1 active strain gauge and is mainly used to measure mechanical stress in constructions to determine whether they are not overloaded. Often to verify a theoretical analysis. This configuration is limited temperature compensated. The quarter bridge configuration in 4-wire connection, where the sense lines compensate the cable influences, is frequently used and measures the deformation of the material on which the strain gauge is applied in one defined direction..

Half bridge configuration
The half configuration consists of 2 strain gauges which, depending on the application, can be switched into 2 active strain gauges, 1 active and 1 passive strain gauge or possibly with 1 dummy strain gauge which is placed near the active strain gauge on an unloaded section. The half bridge configuration is recommended for measurements of longer duration, where influences of thermal stresses need to be compensated.

Full bridge configuration
The full configuration is the most ideal configuration with optimum compensation of thermal stresses and wiring influences. Frequently used in sensor construction. At least with 4 strain gauges to realize the Wheatstone bridge, but often with multiple strain gauges in series up to 16 pieces. When using multiple active and/or passive strain gauges, a larger measurement signal is obtained. The ratio between the enlarged measurement signal and the actual load is called the bridge factor.

Dexman

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