JPS5614902A - Measuring device - Google Patents

Measuring device

Info

Publication number
JPS5614902A
JPS5614902A JP9143479A JP9143479A JPS5614902A JP S5614902 A JPS5614902 A JP S5614902A JP 9143479 A JP9143479 A JP 9143479A JP 9143479 A JP9143479 A JP 9143479A JP S5614902 A JPS5614902 A JP S5614902A
Authority
JP
Japan
Prior art keywords
light rays
detected
optical mirror
scanning
lens
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
JP9143479A
Other languages
Japanese (ja)
Inventor
Mitsuo Iso
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.)
Hitachi Zosen Corp
Original Assignee
Hitachi Zosen Corp
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 Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP9143479A priority Critical patent/JPS5614902A/en
Publication of JPS5614902A publication Critical patent/JPS5614902A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To accurately detect the position of a body to be detected from an electric current at the time of interruption of light rays by providing an optical mirror on a rotary shaft following after the current of a drive winding to form parallel light rays.
CONSTITUTION: The measuring device comprises the light source 14 of a laser light or the like which injects light rays onto an optical mirror 13 mounted on the end part of the rotary shaft 12 of a scanning apparatus 11, the first lens 15 which forms the reflected light rays from the optical mirror 13 into parallel scanning light rays, the second lens 16 which focuses the scanning light rays, and a photoelectric switch 17. It is detected by the photoelectric switch 17 that a body 18 to be detected has interrupted the scanning light rays, the angle of rotation of the optical mirror 13 is detected from the direction and value of the current flowing through the drive winding of the scanning apparatus 11 at the time of detection. It is possible to detect the position of the body 18 to be detected from the angle of rotation.
COPYRIGHT: (C)1981,JPO&Japio
JP9143479A 1979-07-17 1979-07-17 Measuring device Pending JPS5614902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9143479A JPS5614902A (en) 1979-07-17 1979-07-17 Measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9143479A JPS5614902A (en) 1979-07-17 1979-07-17 Measuring device

Publications (1)

Publication Number Publication Date
JPS5614902A true JPS5614902A (en) 1981-02-13

Family

ID=14026252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9143479A Pending JPS5614902A (en) 1979-07-17 1979-07-17 Measuring device

Country Status (1)

Country Link
JP (1) JPS5614902A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS607005U (en) * 1983-06-24 1985-01-18 株式会社ミツトヨ Light beam conversion device in optical measuring machine
US4966460A (en) * 1987-10-28 1990-10-30 The Ingersoll Milling Machine Company Laser gauging of rotary cutting tools
US5099698A (en) * 1989-04-14 1992-03-31 Merck & Co. Electronic readout for a rotameter flow gauge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS607005U (en) * 1983-06-24 1985-01-18 株式会社ミツトヨ Light beam conversion device in optical measuring machine
US4966460A (en) * 1987-10-28 1990-10-30 The Ingersoll Milling Machine Company Laser gauging of rotary cutting tools
US5099698A (en) * 1989-04-14 1992-03-31 Merck & Co. Electronic readout for a rotameter flow gauge

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