Revolution counter using magnetic bubble device for multi-turn absolute encoder

Fusao Kohsaka, Toshio Iino, Yoshiaki Kudou, Yasuhiro Sakamaki, Toshitsugu Ueda

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A revolution counter using a magnetic bubble device and permanent magnets has been developed that can count up/down and maintain shaft revolutions without using electrical energy. It consists of a newly developed dedicated magnetic bubble chip, a pair of bias magnets, a ring magnet, a pair of coils wound around the chip, and a signal processing circuit. A multi-turn fully absolute encoder has been realized by using this counter in conjunction with an optical encoder which we also developed. It is expected that there will be numerous applications for this encoder, including use as a replacement for conventional mechanical counters.

Original languageEnglish
Pages (from-to)803-806
Number of pages4
JournalSensors and Actuators: A. Physical
Volume22
Issue number1-3
DOIs
Publication statusPublished - 1989
Externally publishedYes

Fingerprint

Magnetic bubble devices
coders
Magnets
counters
magnets
bubbles
Magnetic bubbles
chips
Permanent magnets
Signal processing
electric power
permanent magnets
Networks (circuits)
signal processing
coils
rings

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Instrumentation

Cite this

Revolution counter using magnetic bubble device for multi-turn absolute encoder. / Kohsaka, Fusao; Iino, Toshio; Kudou, Yoshiaki; Sakamaki, Yasuhiro; Ueda, Toshitsugu.

In: Sensors and Actuators: A. Physical, Vol. 22, No. 1-3, 1989, p. 803-806.

Research output: Contribution to journalArticle

Kohsaka, Fusao ; Iino, Toshio ; Kudou, Yoshiaki ; Sakamaki, Yasuhiro ; Ueda, Toshitsugu. / Revolution counter using magnetic bubble device for multi-turn absolute encoder. In: Sensors and Actuators: A. Physical. 1989 ; Vol. 22, No. 1-3. pp. 803-806.
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