JPS57515A - Mechanical displacement measuring device - Google Patents

Mechanical displacement measuring device

Info

Publication number
JPS57515A
JPS57515A JP7475780A JP7475780A JPS57515A JP S57515 A JPS57515 A JP S57515A JP 7475780 A JP7475780 A JP 7475780A JP 7475780 A JP7475780 A JP 7475780A JP S57515 A JPS57515 A JP S57515A
Authority
JP
Japan
Prior art keywords
pickup
high voltage
measured
voltage line
measuring device
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
JP7475780A
Other languages
Japanese (ja)
Inventor
Yasuyoshi Kawaguchi
Yoshihiko Matsui
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.)
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Electric Manufacturing 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 Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Electric Manufacturing Co Ltd
Priority to JP7475780A priority Critical patent/JPS57515A/en
Publication of JPS57515A publication Critical patent/JPS57515A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE:To eliminate the problems by the production of noise even when an object to be measured is installed in a high voltage line by detecting mechanical displacement by the utilization of light. CONSTITUTION:Direct current light is outputted from the terminal A of a measuring device body 5, and is irradiated to a pickup 2 through an optical fiber cable 3. The pickup 2 is made of a semitransparent flat plate of which the transmittance changes gradually with its positions and which moves vertically together with an object 1 to be measured. The light past the pickup 2 is inputted through an optical cable 4 to a terminal B, by which it is converted to an electric signal. This signal is inputted to an oscilloscope 6. Even in such a case as with a breaker of the object to be measured installed in a high voltage line, it is prevented from receiving the influence of noise in the high voltage line.
JP7475780A 1980-06-03 1980-06-03 Mechanical displacement measuring device Pending JPS57515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7475780A JPS57515A (en) 1980-06-03 1980-06-03 Mechanical displacement measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7475780A JPS57515A (en) 1980-06-03 1980-06-03 Mechanical displacement measuring device

Publications (1)

Publication Number Publication Date
JPS57515A true JPS57515A (en) 1982-01-05

Family

ID=13556456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7475780A Pending JPS57515A (en) 1980-06-03 1980-06-03 Mechanical displacement measuring device

Country Status (1)

Country Link
JP (1) JPS57515A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59830A (en) * 1982-06-28 1984-01-06 富士電機株式会社 Device for switching and tripping circuit breaker
JPS6067820A (en) * 1983-09-24 1985-04-18 Diesel Kiki Co Ltd Displacement detector
FR2566896A1 (en) * 1984-07-02 1986-01-03 Aerospatiale METHOD AND DEVICE FOR DETERMINING THE POSITION OF A MOBILE MEMBER USING ELEMENTS WITH VARIABLE OPTICAL PROPERTIES
US4638265A (en) * 1985-06-03 1987-01-20 Motorola, Inc. Balanced variable reactance circuit and method of producing the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52104003A (en) * 1976-02-27 1977-09-01 Yokogawa Hokushin Electric Corp Signal transmission apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52104003A (en) * 1976-02-27 1977-09-01 Yokogawa Hokushin Electric Corp Signal transmission apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59830A (en) * 1982-06-28 1984-01-06 富士電機株式会社 Device for switching and tripping circuit breaker
JPH0139178B2 (en) * 1982-06-28 1989-08-18 Fuji Electric Co Ltd
JPS6067820A (en) * 1983-09-24 1985-04-18 Diesel Kiki Co Ltd Displacement detector
FR2566896A1 (en) * 1984-07-02 1986-01-03 Aerospatiale METHOD AND DEVICE FOR DETERMINING THE POSITION OF A MOBILE MEMBER USING ELEMENTS WITH VARIABLE OPTICAL PROPERTIES
US4638265A (en) * 1985-06-03 1987-01-20 Motorola, Inc. Balanced variable reactance circuit and method of producing the same

Similar Documents

Publication Publication Date Title
DE3381019D1 (en) MEASURING AN ELECTRICAL SIGNAL WITH PICOSECOND RESOLUTION.
GB2033601B (en) Fibre optical arrangement for measuring the intensity of an electric current
DE59108405D1 (en) Multimeter with at least three input connections
JPS57515A (en) Mechanical displacement measuring device
GB8800667D0 (en) Optical power meter
ES8405957A1 (en) Device for measuring the arc tension in a furnace.
FR2388279A1 (en) Electrical discharge currents remote measurement - uses luminous discharge tube, fibre optics and photodiode circuit for optical to electrical transformation
JPS56103333A (en) Temperature detector
JPS5739304A (en) Opening and closing distance measuring device for electrode
JPS5396881A (en) Pantagraph lose contact measuring apparatus
JPS5742861A (en) Noncontacting electrometer
JPS56163409A (en) Dial gauge
GB1098377A (en) Improved apparatus for detecting an electrical condition in a region of high electrical potential and transmitting an indication thereof
JPS53139555A (en) Probe apparatus
JPS56133640A (en) Monitoring device for degree of vacuum of vacuum electric equipment
JPS52104289A (en) Atomic spectrum generator
ES471649A1 (en) Apparatus for measuring and correcting calibration characteristic of photoelectric aerosol analyzer
JPS56137332A (en) Optical not circuit
JPS56129830A (en) Pressure measuring apparatus
JPS5767369A (en) Device for measurement of slanting quantity of facsimile
SU1249323A1 (en) Device for checking the bearing of the contacting surfaces
JPS56106208A (en) Monitoring device for electric power cable
JPS56114347A (en) Probe card
JPS5780519A (en) Optical digital length measuring device
JPS5364084A (en) System spectometer