JPS5558406A - Filler for infinitesimal displacement detector - Google Patents

Filler for infinitesimal displacement detector

Info

Publication number
JPS5558406A
JPS5558406A JP12931378A JP12931378A JPS5558406A JP S5558406 A JPS5558406 A JP S5558406A JP 12931378 A JP12931378 A JP 12931378A JP 12931378 A JP12931378 A JP 12931378A JP S5558406 A JPS5558406 A JP S5558406A
Authority
JP
Japan
Prior art keywords
capacitors
variable
filler
xtal
pair
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.)
Granted
Application number
JP12931378A
Other languages
Japanese (ja)
Other versions
JPS608722B2 (en
Inventor
Hiromi Ogasawara
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP53129313A priority Critical patent/JPS608722B2/en
Publication of JPS5558406A publication Critical patent/JPS5558406A/en
Publication of JPS608722B2 publication Critical patent/JPS608722B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

PURPOSE: To obtain a filler for an infinitesimal displacement detector which can so actuate as to suitably correspond in the capacitance change of a variable capacitor a mechanical displacement of an object.
CONSTITUTION: A pair of variable capacitors C1, C2 are constructed in cooperation with a pair of fixed electrodes Ef1, Ef2 aligned in parallel to dispoded a variable electrode Ev therebetween. The capacitors C1, C2 are operated reversely to each other. The increase or decrease of the capacitances of the capacitors is inversely proportional to the square of the distance between the variable electrode Ev and the fixed electrodes Ef1, Ef2. These capacitors C1, C2 are connected series with crystal vibrators Xtal1, Xtal6, respectively and oscillators OSC1, OSC2, the outputs of which oscillators are commonly applied to a mixer MIX, from which a differential frequency signal Ed thereof is produced at its output terminal. Since the signal characteristic of the mixer MIS is in S shape with substantially linear line at the center, a frequency output proportional to the stroke of the movable electrode can be produced using the linear range of the characteristics.
COPYRIGHT: (C)1980,JPO&Japio
JP53129313A 1978-10-20 1978-10-20 Feeler of minute displacement detector Expired JPS608722B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53129313A JPS608722B2 (en) 1978-10-20 1978-10-20 Feeler of minute displacement detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53129313A JPS608722B2 (en) 1978-10-20 1978-10-20 Feeler of minute displacement detector

Publications (2)

Publication Number Publication Date
JPS5558406A true JPS5558406A (en) 1980-05-01
JPS608722B2 JPS608722B2 (en) 1985-03-05

Family

ID=15006474

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53129313A Expired JPS608722B2 (en) 1978-10-20 1978-10-20 Feeler of minute displacement detector

Country Status (1)

Country Link
JP (1) JPS608722B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007082757A (en) * 2005-09-22 2007-04-05 Heiwa Corp Game machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007082757A (en) * 2005-09-22 2007-04-05 Heiwa Corp Game machine

Also Published As

Publication number Publication date
JPS608722B2 (en) 1985-03-05

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