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Temperature field analysis and compensation improvement of load cell
Shudong Zhuang1, Wen Yang2, Yuxiang Zhou1
1College of Mechanical and Electrical Engineering, Hohai University, 213022, Changzhou, China.
Scientific Reports
|November 1, 2024
Summary
This study addresses temperature-induced errors in strain gauge sensors by repositioning compensation resistors. The new method ensures accurate measurements despite unstable temperature gradients, improving sensor reliability.
Area of Science:
- Engineering
- Materials Science
- Physics
Background:
- Strain gauge sensors generate heat during operation due to the strain gauge and PCB electronics.
- This internal heat creates unstable temperature gradients within the sensor, varying with ambient temperature.
- Existing temperature compensation methods can be inaccurate due to these unstable gradients.
Purpose of the Study:
- To propose and validate a novel method for reducing temperature-induced errors in strain gauge sensors.
- To address inaccuracies caused by unstable temperature gradients and the temperature field effect.
- To improve the reliability and accuracy of strain gauge measurements under varying thermal conditions.
Main Methods:
- A new approach involving the repositioning of temperature compensation resistors was developed.
- Steady-state thermal simulations were performed using ANSYS software.
- Experimental validation was conducted to verify the simulation results and the effectiveness of the proposed method.
Main Results:
- The proposed repositioning of temperature compensation resistors effectively mitigates errors caused by unstable temperature gradients.
- Thermal simulations confirmed the method's ability to manage the temperature field effect without compromising strain measurement.
- Experimental results validated the practical efficacy of the proposed compensation strategy.
Conclusions:
- Repositioning temperature compensation resistors is a viable strategy to overcome temperature-induced errors in strain gauge sensors.
- The method ensures accurate sensor performance by stabilizing the effects of internal temperature gradients.
- This advancement enhances the operational stability and measurement precision of strain gauge sensors in diverse environments.
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