Multiturn absolute encoder using spatial filter

Fusao Kohsaka, Toshio Iino, Kunio Kazami, Hiroshi Nakayama, Toshitsugu Ueda

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This paper describes a vernier-type multiturn absolute encoder which uses a spatial filter to interpolate between encoder slit positions. The absolute angle can be derived from the optical encoder which uses a LED, photodiodide array and a coded disc consisting of three tracks. The accuracy of angular measurement for a prototype encoder was as high as 1/1000,000, and the encoder can respond up to 3 000 rpm. The shaft revolutions are tallied by a magnetic bubble counter which uses a 'memory wheel' principle to count up to 32 487 turns. No electrical energy is used to store data or count revolutions.

Original languageEnglish
Pages (from-to)94-99
Number of pages6
JournalJSME International Journal
Volume33
Issue number1
Publication statusPublished - 1990 Mar
Externally publishedYes

Fingerprint

Magnetic bubbles
Angle measurement
Light emitting diodes
Wheels
Data storage equipment

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kohsaka, F., Iino, T., Kazami, K., Nakayama, H., & Ueda, T. (1990). Multiturn absolute encoder using spatial filter. JSME International Journal, 33(1), 94-99.

Multiturn absolute encoder using spatial filter. / Kohsaka, Fusao; Iino, Toshio; Kazami, Kunio; Nakayama, Hiroshi; Ueda, Toshitsugu.

In: JSME International Journal, Vol. 33, No. 1, 03.1990, p. 94-99.

Research output: Contribution to journalArticle

Kohsaka, F, Iino, T, Kazami, K, Nakayama, H & Ueda, T 1990, 'Multiturn absolute encoder using spatial filter', JSME International Journal, vol. 33, no. 1, pp. 94-99.
Kohsaka F, Iino T, Kazami K, Nakayama H, Ueda T. Multiturn absolute encoder using spatial filter. JSME International Journal. 1990 Mar;33(1):94-99.
Kohsaka, Fusao ; Iino, Toshio ; Kazami, Kunio ; Nakayama, Hiroshi ; Ueda, Toshitsugu. / Multiturn absolute encoder using spatial filter. In: JSME International Journal. 1990 ; Vol. 33, No. 1. pp. 94-99.
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