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Modeling and Optimal Design for a High Stability 2D Optoelectronic Angle Sensor.

Zhenying Cheng1, Liying Liu1, Peng Xu1

  • 1School of Instrument Science and Opto-electronics Engineering, Hefei University of Technology, Hefei 230009, China.

Sensors (Basel, Switzerland)
|October 17, 2019
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Summary

This study optimized a 2D optoelectronic angle sensor, significantly improving its stability against environmental factors. The new design enhances precision measurement equipment reliability.

Keywords:
angle sensordrifterror modeloptimal designstability

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Area of Science:

  • Optoelectronics
  • Measurement Science
  • Mechanical Engineering

Background:

  • High-precision measurement equipment is susceptible to structural deformations from environmental changes (temperature, vibration).
  • These deformations lead to drift errors, compromising sensor accuracy and stability.
  • Existing designs may not adequately address these environmental impacts.

Purpose of the Study:

  • To investigate the stability and optimal design of a 2D optoelectronic angle sensor.
  • To develop a drift error model for angle sensors affected by structural deformations.
  • To enhance the environmental stability and performance of optoelectronic angle sensors.

Main Methods:

  • Error sensitivity analysis and simulation to identify critical components.
  • Finite Element Analysis (FEA) of component mounts.
  • Optimization of component mounts using symmetric structure principles.
  • Comparative stability experiments on original and optimized sensors.

Main Results:

  • A drift error model for angle sensors was established.
  • Key components sensitive to thermal and vibrational effects were identified.
  • Optimized sensor mounts based on symmetric structures were developed.
  • Stability experiments demonstrated a >63% improvement in the optimized angle sensor's stability.

Conclusions:

  • The developed modeling and optimal design method effectively enhances sensor stability.
  • The optimization approach is cost-effective and applicable to various sensor types.
  • This research provides a pathway to improve the reliability of precision measurement equipment.