JPS6466516A - Pulse generator - Google Patents

Pulse generator

Info

Publication number
JPS6466516A
JPS6466516A JP62223449A JP22344987A JPS6466516A JP S6466516 A JPS6466516 A JP S6466516A JP 62223449 A JP62223449 A JP 62223449A JP 22344987 A JP22344987 A JP 22344987A JP S6466516 A JPS6466516 A JP S6466516A
Authority
JP
Japan
Prior art keywords
reflecting surface
detected
pulse generator
rotor
height
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62223449A
Other languages
Japanese (ja)
Inventor
Shigeto Ueno
Kazuyoshi Moronowaki
Tetsuji Yoshii
Shigeto Wakatsuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62223449A priority Critical patent/JPS6466516A/en
Publication of JPS6466516A publication Critical patent/JPS6466516A/en
Pending legal-status Critical Current

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  • Optical Transform (AREA)

Abstract

PURPOSE:To achieve a higher S/N ratio, by a method wherein a surface to be detected comprising a reflecting surface and a non-reflecting surface not the same in the height is provided at a part of an external surface of a rotor to be detected and a light emitting element and a light receiving element are arranged toward the surface being detected. CONSTITUTION:A light emitting element and a light receiving element are arranged toward a surface of a rotor 1 intended to detect a position of rotation, revolutions or the like which has a surface to be detected comprising a reflecting surface 2 and a non-reflecting surface 3 not the same in the height as provided at a part of the external thereof. Then, a step between the reflecting surface 2 and the non-reflecting surface 3 is above about 0.4mm. In a pulse generator thus arranged, the reflecting surface 2 passes at a distance of d0(=d'0+e) from a reflection type photosensor 4 while the non-reflecting surface 3 passes at a distance of d'0(=d0-e), thereby enabling the obtaining of a high S/N with limited effect of extraneous light.
JP62223449A 1987-09-07 1987-09-07 Pulse generator Pending JPS6466516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62223449A JPS6466516A (en) 1987-09-07 1987-09-07 Pulse generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62223449A JPS6466516A (en) 1987-09-07 1987-09-07 Pulse generator

Publications (1)

Publication Number Publication Date
JPS6466516A true JPS6466516A (en) 1989-03-13

Family

ID=16798316

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62223449A Pending JPS6466516A (en) 1987-09-07 1987-09-07 Pulse generator

Country Status (1)

Country Link
JP (1) JPS6466516A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6080770A (en) * 1983-10-08 1985-05-08 Alps Electric Co Ltd Production of revolution detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6080770A (en) * 1983-10-08 1985-05-08 Alps Electric Co Ltd Production of revolution detector

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