JPS5780518A - Rotation sensor - Google Patents

Rotation sensor

Info

Publication number
JPS5780518A
JPS5780518A JP55157808A JP15780880A JPS5780518A JP S5780518 A JPS5780518 A JP S5780518A JP 55157808 A JP55157808 A JP 55157808A JP 15780880 A JP15780880 A JP 15780880A JP S5780518 A JPS5780518 A JP S5780518A
Authority
JP
Japan
Prior art keywords
electrodes
plate
capacity
electrostatic capacity
sensed
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
JP55157808A
Other languages
Japanese (ja)
Inventor
Hiroaki Tanaka
Shigeyuki Akita
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.)
Soken Inc
Original Assignee
Nippon Soken Inc
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 Nippon Soken Inc filed Critical Nippon Soken Inc
Priority to JP55157808A priority Critical patent/JPS5780518A/en
Priority to US06/318,854 priority patent/US4418347A/en
Publication of JPS5780518A publication Critical patent/JPS5780518A/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
    • G01D5/12—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 using electric or magnetic means
    • G01D5/14—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 using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/24—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 using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
    • G01D5/241—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 using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
    • G01D5/2412—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 using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying overlap
    • G01D5/2415—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 using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying overlap adapted for encoders

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE:To make it possible to sense an accurate rotating position, by supplying signals having opposite phases to specified electrodes in the first plate, cancelling distributed capacity, rotating the second plate, and sensing electrostatic capacity between the electrodes of both plates. CONSTITUTION:The first plate 140 is provided with the first and second electrodes 145 and 146 which are alternately arranged in the circumferential direction with the same interval being provided and the ring shaped third and fourth electrodes 147 and 148. The second plate 150 is provided with the first and second electrodes 151 and 152 which are alternately arranged so as to face said electrode 145 and 146 and the ring shaped thrid and fouth electrodes 156 and 155 which face the elctrodes 147 and 148. The variation in the electrostatic capacity between the electrodes of both plates is obtained from the rotation of the second plate. The signals having the opposite phases and specified periods are applied to the electrodes 145 and 146 of the first plate 140. Compensating capacitors 336 and 337 which cancel the distribution capacity between the electrodes in the frist plate are provided. In this constitution, only the variation in the electrostatic capacity can be sensed, and the accurate rotating position can be sensed.
JP55157808A 1978-12-27 1980-11-10 Rotation sensor Pending JPS5780518A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP55157808A JPS5780518A (en) 1980-11-10 1980-11-10 Rotation sensor
US06/318,854 US4418347A (en) 1978-12-27 1981-11-06 Rotational position detecting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55157808A JPS5780518A (en) 1980-11-10 1980-11-10 Rotation sensor

Publications (1)

Publication Number Publication Date
JPS5780518A true JPS5780518A (en) 1982-05-20

Family

ID=15657732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55157808A Pending JPS5780518A (en) 1978-12-27 1980-11-10 Rotation sensor

Country Status (1)

Country Link
JP (1) JPS5780518A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58103317U (en) * 1982-01-05 1983-07-14 株式会社日本自動車部品総合研究所 indicating instrument
EP2996229A3 (en) * 2014-09-15 2016-07-06 Samsung Electronics Co., Ltd. Step motor and system for driving step motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58103317U (en) * 1982-01-05 1983-07-14 株式会社日本自動車部品総合研究所 indicating instrument
EP2996229A3 (en) * 2014-09-15 2016-07-06 Samsung Electronics Co., Ltd. Step motor and system for driving step motor
US9882461B2 (en) 2014-09-15 2018-01-30 Samsung Electronics Co., Ltd. Step motor and system for driving step motor

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