JPS59214712A - Electrostatic capacitor type displacement detector - Google Patents

Electrostatic capacitor type displacement detector

Info

Publication number
JPS59214712A
JPS59214712A JP8895983A JP8895983A JPS59214712A JP S59214712 A JPS59214712 A JP S59214712A JP 8895983 A JP8895983 A JP 8895983A JP 8895983 A JP8895983 A JP 8895983A JP S59214712 A JPS59214712 A JP S59214712A
Authority
JP
Japan
Prior art keywords
pulse
main
detecting
phase
delay circuit
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
JP8895983A
Other versions
JPH0358447B2 (en
Inventor
Ryochi Kato
Kazutaka Nanba
Original Assignee
Ryochi Kato
Nakamura Seisakusho:Kk
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 Ryochi Kato, Nakamura Seisakusho:Kk filed Critical Ryochi Kato
Priority to JP8895983A priority Critical patent/JPH0358447B2/ja
Publication of JPS59214712A publication Critical patent/JPS59214712A/en
Publication of JPH0358447B2 publication Critical patent/JPH0358447B2/ja
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Abstract

PURPOSE: To obtain a highly accurate, simple, and inexpensive detector, by detecting which main detecting electrode faces a main electrode by phase discriminating circuits, and detecting the relative displacement quantity of a member.
CONSTITUTION: When one member 7 is displaced in the direction of one end of the other member 1, a first main detecting electrode 12a faces a first main electrode in an overlapped manner, and remaining main detecting electrodes 12b, 12c... are deviated from the main electrode and do not face it. As a result, the electrostatic capacity of a first capacitor 16 in the first order becomes large. Then, the delay quantity of a pulse in a first delay circuit 15a in the first order becomes larger than the delay quantity of a pulse in a paired second delay circuit 17a in the first order. The phase of the pulse from the first delay circuit 15a lags from the phase of the pulse from the second delay circuit 17a. An output is sent to a counter circuit 21 from a first phase discriminating circuit 20a. Since the electrostatic capacity of the remaining first capacitors 16 remains small, outputs are not sent out of remaining phase discriminating circuits 20b, 20c....
COPYRIGHT: (C)1984,JPO&Japio
JP8895983A 1983-05-20 1983-05-20 Expired - Lifetime JPH0358447B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8895983A JPH0358447B2 (en) 1983-05-20 1983-05-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8895983A JPH0358447B2 (en) 1983-05-20 1983-05-20

Publications (2)

Publication Number Publication Date
JPS59214712A true JPS59214712A (en) 1984-12-04
JPH0358447B2 JPH0358447B2 (en) 1991-09-05

Family

ID=13957371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8895983A Expired - Lifetime JPH0358447B2 (en) 1983-05-20 1983-05-20

Country Status (1)

Country Link
JP (1) JPH0358447B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878013A (en) * 1986-04-04 1989-10-31 Mitutoyo Corporation Capacitive type measurement transducer with improved electrode arrangement
US4982509A (en) * 1988-08-19 1991-01-08 Delta International Machinery Corp. Measurement system having multiple display orientations
US5414420A (en) * 1992-03-23 1995-05-09 Hewlett-Packard Corporation Switch interconnect for position encoder system
US5428355A (en) * 1992-03-23 1995-06-27 Hewlett-Packard Corporation Position encoder system
JP2007093287A (en) * 2005-09-27 2007-04-12 Tietech Co Ltd Linear motor
JP2016206163A (en) * 2015-04-24 2016-12-08 株式会社ミツトヨ Encoder scale, and its manufacturing and attachment method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878013A (en) * 1986-04-04 1989-10-31 Mitutoyo Corporation Capacitive type measurement transducer with improved electrode arrangement
US4982509A (en) * 1988-08-19 1991-01-08 Delta International Machinery Corp. Measurement system having multiple display orientations
US5414420A (en) * 1992-03-23 1995-05-09 Hewlett-Packard Corporation Switch interconnect for position encoder system
US5428355A (en) * 1992-03-23 1995-06-27 Hewlett-Packard Corporation Position encoder system
JP2007093287A (en) * 2005-09-27 2007-04-12 Tietech Co Ltd Linear motor
JP2016206163A (en) * 2015-04-24 2016-12-08 株式会社ミツトヨ Encoder scale, and its manufacturing and attachment method

Also Published As

Publication number Publication date
JPH0358447B2 (en) 1991-09-05

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