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JPS57111406A - Detector for optical inclination - Google Patents

Detector for optical inclination

Info

Publication number
JPS57111406A
JPS57111406A JP18724380A JP18724380A JPS57111406A JP S57111406 A JPS57111406 A JP S57111406A JP 18724380 A JP18724380 A JP 18724380A JP 18724380 A JP18724380 A JP 18724380A JP S57111406 A JPS57111406 A JP S57111406A
Authority
JP
Japan
Prior art keywords
plate
detected
inclination
input
optical fibers
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
JP18724380A
Other languages
Japanese (ja)
Inventor
Seiji Terai
Takashi Yokota
Hideki Noda
Kenji Shirai
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP18724380A priority Critical patent/JPS57111406A/en
Publication of JPS57111406A publication Critical patent/JPS57111406A/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
    • G01C9/12—Measuring inclination, e.g. by clinometers, by levels by using a single pendulum plumb lines G01C15/10

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To obtain the stable detection information which is free from the effect of the induction of an external noise, etc., by distributing the optical fibers of the input and output sides opposite to each other so as to realize the coupling to the inclination of an object to which the inclination is detected via a light attenuating plate. CONSTITUTION:A semicircular light attenuating plate 1 has the light transmission quantity which varies continuously in the direction from point A to point B, i.e. toward a circular circumference shown by a chain line. The face of the plate 1 is turned to a direction vertical to the inclining direction of the object to be detected and at the same time held by a supporting shaft 2 in a rotatable way so that the plate 1 always hangs down toward the gravity to be set at a constant position. Then the input and output side optical fibers 3 and 4 which are fixed to the object to be detected (not shown in the diagram) are set opposite to each other via the plate 1. Furthermore lenses 5 and 6 are provided at the tip parts of the fibers 3 and 4 to increase the detecting sensitivity.
JP18724380A 1980-12-29 1980-12-29 Detector for optical inclination Pending JPS57111406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18724380A JPS57111406A (en) 1980-12-29 1980-12-29 Detector for optical inclination

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18724380A JPS57111406A (en) 1980-12-29 1980-12-29 Detector for optical inclination

Publications (1)

Publication Number Publication Date
JPS57111406A true JPS57111406A (en) 1982-07-10

Family

ID=16202549

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18724380A Pending JPS57111406A (en) 1980-12-29 1980-12-29 Detector for optical inclination

Country Status (1)

Country Link
JP (1) JPS57111406A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57211508A (en) * 1981-06-24 1982-12-25 Sumitomo Electric Ind Ltd Optical inclinometer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57211508A (en) * 1981-06-24 1982-12-25 Sumitomo Electric Ind Ltd Optical inclinometer

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