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전자기력 보상 방식 고정밀 저울을 위한 광학식 위치 센서 개발

Development of an Optical Position Sensor for High-Precision Electromagnetic Force Compensation Balance

Journal of the Korean Society for Precision Engineering 2021;38(8):567-574.
Published online: August 1, 2021

1 아주대학교 기계공학과

1 Department of Mechanical Engineering, Ajou University

#E-mail: ymanchoi@ajou.ac.kr, TEL: +82-31-219-2342
• Received: April 1, 2021   • Revised: June 24, 2021   • Accepted: June 30, 2021

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Citations

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  • Modeling and Tolerance Analysis of Compliant Mechanism for Axis-Symmetric Mass Comparator
    Kyung-Taek Yoon, Young-Man Choi
    IEEE/ASME Transactions on Mechatronics.2024; 29(2): 878.     CrossRef
  • Practical Gravimetric Flow Rate Measurement Method for Slot-Die Coating Uniformity Evaluation
    Kyung-Taek Yoon, Jeong-Hyun Bae, Young-Man Choi
    Journal of the Korean Society for Precision Engineering.2023; 40(2): 105.     CrossRef
  • Novel Multi-Electromagnetic-Force-Compensation Weighing Cell With Axis-Symmetric Structure
    Kyung-Taek Yoon, Hyunho Lim, Jeong-Hyun Bae, Won Kyu Lee, Dongmin Kim, Young-Man Choi
    IEEE/ASME Transactions on Mechatronics.2022; 27(6): 6018.     CrossRef

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Development of an Optical Position Sensor for High-Precision Electromagnetic Force Compensation Balance
J. Korean Soc. Precis. Eng.. 2021;38(8):567-574.   Published online August 1, 2021
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Development of an Optical Position Sensor for High-Precision Electromagnetic Force Compensation Balance
J. Korean Soc. Precis. Eng.. 2021;38(8):567-574.   Published online August 1, 2021
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Development of an Optical Position Sensor for High-Precision Electromagnetic Force Compensation Balance
Image Image Image Image Image Image Image Image Image Image Image Image Image Image
Fig. 1 Schematic diagram of electromagnetic force compensation balance
Fig. 2 Working principle of the proposed optical position sensor
Fig. 3 Diffraction geometry for the Huygens-Fresnel principle
Fig. 4 Parametric analysis result with regard to slit size
Fig. 5 Parametric analysis result with regard to the distance between slit and PD
Fig. 6 Experimental setup
Fig. 7 Estimated sensor output from analytical model and measured sensor output
Fig. 8 Noise measurement results of optical position sensor
Fig. 9 Noise measurement results of encoder
Fig. 10 Drift in measured displacement of the optical position sensor and linear encoder according to the temperature for 3 hours
Fig. 11 Current noise: raw data and filtered data
Fig. 12 Response of the weighing cell prototype when loading a 5 g mass
Fig. 13 Repeatability of 5 and 10 g mass
Fig. 14 Velocity response when loading a 10 g mass using linear incremental encoder
Development of an Optical Position Sensor for High-Precision Electromagnetic Force Compensation Balance