Study of a capacitive sensing technology for the measurement of perpendicularity of narrow-deep slot-walls in precision molds

Shun-Tong Chen, S. M. Lin

研究成果: 書貢獻/報告類型會議論文篇章

摘要

This paper presents a novel approach to slot-wall measurement in precision molds. The method measures the perpendicularity of slot-walls in the hard to measure very narrow and deep slots in precision molds. A tabletop hybrid measurement centre combining micro-wire electrical discharge machining (w-EDM) with automatic optical inspection (AOI), and capacitive sensing (CS) is developed. Microprobes are machined using micro w-EDM on the measurement centre. AOI facilitates the designed machine vision system to acquire images from the mold's features. These images are binarized for recognition, which helps the microprobe speedy position into the contour. Capacitive sensing, by which a signal with very low voltage and high frequency is employed between the probe and slot-wall, is conducted for precise detection of perpendicularity. A four-step probe feed approach is proposed for improved measurement accuracy. The technical feasibility of capacitive sensing was experimentally confirmed.

原文英語
主出版物標題Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014
編輯R. Leach
發行者euspen
頁面317-320
頁數4
ISBN(電子)9780956679031
出版狀態已發佈 - 2014 一月 1
事件14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014 - Dubrovnik, 克罗地亚
持續時間: 2014 六月 22014 六月 6

出版系列

名字Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014
1

其他

其他14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014
國家克罗地亚
城市Dubrovnik
期間2014/06/022014/06/06

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering
  • Materials Science(all)
  • Instrumentation
  • Environmental Engineering

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