Design of Electromagnetic Moving-coil type Voice Coil Motor for Scanning mirror of Barcode reader

바코드 리더용 스캐닝 미러를 위한 무빙 코일 타입 VCM 설계

Shin, Bu Hyun;Lee, Jeong Woo;Shim, Hyun Ho;Park, Sang Goo;Lee, Seung-Yop

  • Received : 2015.04.10
  • Accepted : 2015.11.17
  • Published : 2016.01.01


A voice coil actuator with moving coil type for scanning mirror system of barcode reader has been developed. The actuator has a simple structure including a magnet, a coil and a pin. The performance of the actuator is analyzed by a linearized theoretical model. And the dynamic performance of the proposed actuator is predicted through motor constant and restoring constant obtained by finite element simulations. The theoretical model was verified by the prototype which has 64 Hz resonance frequency and 60 deg reflecting angle. We also discovered that that 3 V input can make the actuator rotate over 61.8 deg reflecting angle at 50 Hz resonance frequency. The proposed actuator can simplify its driving configuration because of its implementation of open-loop control.


Electromagnetic Actuator;Voice Coil Motor;Scanning Mirror


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Grant : Actuator 의 해석 모델 개발

Supported by : 서강대학교