JPS56164929A - Small-sized vibration sensor - Google Patents

Small-sized vibration sensor

Info

Publication number
JPS56164929A
JPS56164929A JP6863980A JP6863980A JPS56164929A JP S56164929 A JPS56164929 A JP S56164929A JP 6863980 A JP6863980 A JP 6863980A JP 6863980 A JP6863980 A JP 6863980A JP S56164929 A JPS56164929 A JP S56164929A
Authority
JP
Japan
Prior art keywords
magnets
vibration sensor
magnet
stationary
microminature
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
JP6863980A
Other languages
Japanese (ja)
Inventor
Misao Hashidate
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP6863980A priority Critical patent/JPS56164929A/en
Publication of JPS56164929A publication Critical patent/JPS56164929A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Measurement Of Distances Traversed On The Ground (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To obtain a microminature vibration sensor which does not contain any rotating part by slidably providing such a magnet which mutually repulses from stationary magnets on both sides between two pieces of stationary magnets. CONSTITUTION:Two pieces of stationary magnets 3 are fixed and mounted to the side walls of a stationary base 1 consisting of a nonmagnetic material such as brass or synthetic resin. A sliding magnet 4 is mounted slidably to the slide shaft 2 fixed between both side walls in a manner as to mutually repulse from the magnets 3 on both sides. The magnet 4 consist of a weight 4a of large specific gravity such as brass or lead, and magnets 4a, 4b bonded to both side surfaces and consisting of SmCo5. The inside surfaces of the holes penetrating these are applied with ''Teflon '' coating like on the outside surface of the slide shaft. The change in the position of the sliding magnet 4 caused by the vibrations from the outside is detected by a lead switch, a Hall element, a coil or other magneto-electric transducer. Thereby, the microminature vibration sensor which does not contain any rotating part is obtained.
JP6863980A 1980-05-22 1980-05-22 Small-sized vibration sensor Pending JPS56164929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6863980A JPS56164929A (en) 1980-05-22 1980-05-22 Small-sized vibration sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6863980A JPS56164929A (en) 1980-05-22 1980-05-22 Small-sized vibration sensor

Publications (1)

Publication Number Publication Date
JPS56164929A true JPS56164929A (en) 1981-12-18

Family

ID=13379495

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6863980A Pending JPS56164929A (en) 1980-05-22 1980-05-22 Small-sized vibration sensor

Country Status (1)

Country Link
JP (1) JPS56164929A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662606A2 (en) * 1994-01-10 1995-07-12 Omron Corporation A vibration sensor
KR100887761B1 (en) 2007-10-16 2009-03-12 한국과학기술원 Apparatus for measuring inertia with haptic feedback and method therefor
CN103357513A (en) * 2009-07-10 2013-10-23 阿尔法拉瓦尔股份有限公司 Gas purification separator
JP2017003532A (en) * 2015-06-15 2017-01-05 公益財団法人鉄道総合技術研究所 Earthquake detector, force calculation method, and mass calculation method
US11415457B2 (en) * 2018-05-23 2022-08-16 National Applied Research Laboratories Vibration sensor with sliding magnet

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662606A2 (en) * 1994-01-10 1995-07-12 Omron Corporation A vibration sensor
EP0662606A3 (en) * 1994-01-10 1996-04-24 Omron Tateisi Electronics Co A vibration sensor.
US5834649A (en) * 1994-01-10 1998-11-10 Omron Corporation Vibration sensor including a movable magnet positioned between stationary magnets
KR100887761B1 (en) 2007-10-16 2009-03-12 한국과학기술원 Apparatus for measuring inertia with haptic feedback and method therefor
CN103357513A (en) * 2009-07-10 2013-10-23 阿尔法拉瓦尔股份有限公司 Gas purification separator
JP2017003532A (en) * 2015-06-15 2017-01-05 公益財団法人鉄道総合技術研究所 Earthquake detector, force calculation method, and mass calculation method
US11415457B2 (en) * 2018-05-23 2022-08-16 National Applied Research Laboratories Vibration sensor with sliding magnet

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