Quarter- bridge strain gauge circuit

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SUMMARY

The discussion centers on the implementation of a quarter-bridge strain gauge circuit, specifically how to balance the circuit using additional resistors to achieve a zero reading on a voltmeter. The user seeks guidance on calculating the resistance values, particularly in relation to temperature changes affecting the strain gauge's resistance. The Wheatstone bridge configuration is referenced as a foundational resource for understanding the circuit's operation and calculations.

PREREQUISITES
  • Understanding of quarter-bridge strain gauge configurations
  • Familiarity with Wheatstone bridge principles
  • Knowledge of resistance temperature coefficients
  • Basic circuit analysis skills
NEXT STEPS
  • Study the Wheatstone bridge circuit analysis techniques
  • Learn about resistance temperature coefficients and their impact on strain gauges
  • Explore methods for calculating resistance values in balancing circuits
  • Investigate temperature compensation techniques for strain gauge measurements
USEFUL FOR

Electrical engineers, instrumentation specialists, and anyone involved in strain gauge applications or circuit design will benefit from this discussion.

Janka
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Could anybody help me please? :cry

If I have quarter- bridge strain gauge circuit, where strain gauge will have its initial resistance and i will add another 3 resistors, 1 on the same side like strain gauge, and another 2 on the opposite side, so I will balance circuit and my voltmeter reading will be zero.
With effect of increasing temperature , resistance on strain gauge will increase, how could i get the values? Please help me someone because I am thinking about it already two days and i am lost.

I have no idea what equation to use...:confused:
Thanks
 
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There are lots of resources on the web for this problem. Here is one: https://www.electronics-tutorials.ws/blog/wheatstone-bridge.html

Look at this treatment and ask us to explain the parts that you find confusing.
 
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