Performance analysis of the optical displacement sensor for accurate in-plane motion measurement

정확한 평면운동 측정을 위한 광 변위센서의 성능분석

Kang, Hoon;Lee, Hunseok;Oh, Jin-Seok

  • Received : 2015.12.17
  • Accepted : 2016.01.21
  • Published : 2016.03.31


In this study, the contactless measurement method with a optical displacement sensor(ODS, ADNS 9500) was proposed to overcome flaws in a rotary encoder based measurement under particular circumstances, such as a slippage and a case of little rotational inertia. The performance tests of the optical displacement sensor using data acquisition board and National Instruments's LabVIEW program were performed to accomplish accurate displacement measurements and the performance characteristics according to measurement direction, speed, acceleration, height and surface types were discovered through the repetitive tests. The experimental results indicate that, in order to get an accurate in-plane motion, the height(distance between the ODS and the target surface) has to be maintained at the range of 2.4 mm to 3.2 mm and the sensitivity(resolution) should be modified and applied to the formulae for displacement calculation, considering its measurement direction, speed and surface type.


Optical displacement sensor;Optical mouse sensor;Contactless displacement measurement;Sensitivity


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Grant : 산업계연계형

Supported by : 한국생산기술연구원