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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationConference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014
EditorsR. Leach
Publishereuspen
Pages317-320
Number of pages4
ISBN (Electronic)9780956679031
Publication statusPublished - 2014 Jan 1
Event14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014 - Dubrovnik, Croatia
Duration: 2014 Jun 22014 Jun 6

Publication series

NameConference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014
Volume1

Other

Other14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014
CountryCroatia
CityDubrovnik
Period14/6/214/6/6

Fingerprint

Molds
slots
Electric discharge machining
machining
inspection
Inspection
wire
Wire
probes
computer vision
low voltage
Computer vision
Electric potential

Keywords

  • Automatic optical inspection (AOI)
  • Capacitive sensing (CS)
  • Deep
  • Micro wire electrical discharge machining (Micro w-EDM)
  • Narrow-deep slot-wall

ASJC Scopus subject areas

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

Cite this

Chen, S-T., & Lin, S. M. (2014). Study of a capacitive sensing technology for the measurement of perpendicularity of narrow-deep slot-walls in precision molds. In R. Leach (Ed.), Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014 (pp. 317-320). (Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014; Vol. 1). euspen.

Study of a capacitive sensing technology for the measurement of perpendicularity of narrow-deep slot-walls in precision molds. / Chen, Shun-Tong; Lin, S. M.

Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014. ed. / R. Leach. euspen, 2014. p. 317-320 (Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014; Vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chen, S-T & Lin, SM 2014, Study of a capacitive sensing technology for the measurement of perpendicularity of narrow-deep slot-walls in precision molds. in R Leach (ed.), Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014. Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014, vol. 1, euspen, pp. 317-320, 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014, Dubrovnik, Croatia, 14/6/2.
Chen S-T, Lin SM. Study of a capacitive sensing technology for the measurement of perpendicularity of narrow-deep slot-walls in precision molds. In Leach R, editor, Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014. euspen. 2014. p. 317-320. (Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014).
Chen, Shun-Tong ; Lin, S. M. / Study of a capacitive sensing technology for the measurement of perpendicularity of narrow-deep slot-walls in precision molds. Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014. editor / R. Leach. euspen, 2014. pp. 317-320 (Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014).
@inproceedings{a94d743678bb4421aa0c00a4ed86cba7,
title = "Study of a capacitive sensing technology for the measurement of perpendicularity of narrow-deep slot-walls in precision molds",
abstract = "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.",
keywords = "Automatic optical inspection (AOI), Capacitive sensing (CS), Deep, Micro wire electrical discharge machining (Micro w-EDM), Narrow-deep slot-wall",
author = "Shun-Tong Chen and Lin, {S. M.}",
year = "2014",
month = "1",
day = "1",
language = "English",
series = "Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014",
publisher = "euspen",
pages = "317--320",
editor = "R. Leach",
booktitle = "Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014",

}

TY - GEN

T1 - Study of a capacitive sensing technology for the measurement of perpendicularity of narrow-deep slot-walls in precision molds

AU - Chen, Shun-Tong

AU - Lin, S. M.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - 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.

AB - 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.

KW - Automatic optical inspection (AOI)

KW - Capacitive sensing (CS)

KW - Deep

KW - Micro wire electrical discharge machining (Micro w-EDM)

KW - Narrow-deep slot-wall

UR - http://www.scopus.com/inward/record.url?scp=84923126302&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84923126302&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84923126302

T3 - Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014

SP - 317

EP - 320

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

A2 - Leach, R.

PB - euspen

ER -