JPS57175905A - Device for detecting swinging angle of suspending tool - Google Patents

Device for detecting swinging angle of suspending tool

Info

Publication number
JPS57175905A
JPS57175905A JP6119081A JP6119081A JPS57175905A JP S57175905 A JPS57175905 A JP S57175905A JP 6119081 A JP6119081 A JP 6119081A JP 6119081 A JP6119081 A JP 6119081A JP S57175905 A JPS57175905 A JP S57175905A
Authority
JP
Japan
Prior art keywords
suspending tool
light receiving
receiving device
laser light
suspending
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
JP6119081A
Other languages
Japanese (ja)
Inventor
Saburo Kanai
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 Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6119081A priority Critical patent/JPS57175905A/en
Publication of JPS57175905A publication Critical patent/JPS57175905A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/02—Details
    • G01C9/06—Electric or photoelectric indication or reading means

Abstract

PURPOSE:To improve detecting accuracy, by detecting the horizontal displacement of the suspending tool without contact by a laser light receiving device which is provided in the suspending tool. CONSTITUTION:The light receiving device, wherein light receiving elements are arranged on a two dimensional plane, is provided at the positions facing the laser light on the suspending tool. The output of the light receiving device is inputted to a microcomputer 18 through an adder 15, multiplexers 16A and 16B, and A/D converter 17A and 17B. The microcomputer 18 receives the output of the A/D converter 17A and 17B, computes the center of the laser light with respect to rows and columns, and computes the swinging angles 20A and 20B of the suspending tools.
JP6119081A 1981-04-24 1981-04-24 Device for detecting swinging angle of suspending tool Pending JPS57175905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6119081A JPS57175905A (en) 1981-04-24 1981-04-24 Device for detecting swinging angle of suspending tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6119081A JPS57175905A (en) 1981-04-24 1981-04-24 Device for detecting swinging angle of suspending tool

Publications (1)

Publication Number Publication Date
JPS57175905A true JPS57175905A (en) 1982-10-29

Family

ID=13163992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6119081A Pending JPS57175905A (en) 1981-04-24 1981-04-24 Device for detecting swinging angle of suspending tool

Country Status (1)

Country Link
JP (1) JPS57175905A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60235014A (en) * 1984-05-07 1985-11-21 Nippon Pneumatic Kogyo Kk Water level
JPS6153513A (en) * 1984-08-24 1986-03-17 Takenaka Komuten Co Ltd Perpendicularity measuring apparatus for construction work

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3384750A (en) * 1964-05-25 1968-05-21 Phillips Petroleum Co Borehole deviation detector
JPS4858868A (en) * 1971-11-19 1973-08-17

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3384750A (en) * 1964-05-25 1968-05-21 Phillips Petroleum Co Borehole deviation detector
JPS4858868A (en) * 1971-11-19 1973-08-17

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60235014A (en) * 1984-05-07 1985-11-21 Nippon Pneumatic Kogyo Kk Water level
JPS6153513A (en) * 1984-08-24 1986-03-17 Takenaka Komuten Co Ltd Perpendicularity measuring apparatus for construction work

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