A method for detecting bearing wear in a drain pump utilizing an eddy-current displacement sensor

Toshihiko Yamaguchi, Yoshiro Iwai, Shigeru Inagaki, Masahiro Ueda

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

A simple method for directly measuring bearing wear has been developed by means of an eddy-current displacement sensor. The system consists of a sensor head unit, including a displacement sensor and aluminum functioning foil as a target metal, a data processing system including an amplifier, an A/D converter of 14 bits, a personal computer, and a display. The error of this system was approximately 2 μm, which is sufficient for practical use. Another error caused by the system when used in a plant is discussed theoretically, and a method for the correct estimation of bearing wear without this error based on smoothing, i.e., an averaging of the sampling data, is proposed.

Original languageEnglish
Pages (from-to)205-211
Number of pages7
JournalMeasurement: Journal of the International Measurement Confederation
Volume33
Issue number3
DOIs
Publication statusPublished - Apr 1 2003
Externally publishedYes

Fingerprint

Bearings (structural)
Eddy currents
eddy currents
Wear of materials
Pumps
pumps
sensors
Sensors
data sampling
Aluminum foil
personal computers
smoothing
Personal computers
converters
foils
amplifiers
Display devices
Sampling
aluminum
Metals

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Electrical and Electronic Engineering

Cite this

A method for detecting bearing wear in a drain pump utilizing an eddy-current displacement sensor. / Yamaguchi, Toshihiko; Iwai, Yoshiro; Inagaki, Shigeru; Ueda, Masahiro.

In: Measurement: Journal of the International Measurement Confederation, Vol. 33, No. 3, 01.04.2003, p. 205-211.

Research output: Contribution to journalArticle

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