JPS59111013A - Rotary position detector - Google Patents

Rotary position detector

Info

Publication number
JPS59111013A
JPS59111013A JP22169982A JP22169982A JPS59111013A JP S59111013 A JPS59111013 A JP S59111013A JP 22169982 A JP22169982 A JP 22169982A JP 22169982 A JP22169982 A JP 22169982A JP S59111013 A JPS59111013 A JP S59111013A
Authority
JP
Japan
Prior art keywords
rotary encoder
contact type
output
type rotary
voltage
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
JP22169982A
Other languages
Japanese (ja)
Inventor
Masaru Shimizu
Takehide Takemura
Original Assignee
Matsushita Electric Ind 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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Priority to JP22169982A priority Critical patent/JPS59111013A/en
Publication of JPS59111013A publication Critical patent/JPS59111013A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D11/00Component parts of measuring arrangements not specially adapted for a specific variable

Abstract

PURPOSE:To reduce the power consumption by attaching a switch and a time limiting circuit between a power source and a rotary encoder to automatically halt the energization of the rotary encoder when it is not used. CONSTITUTION:Switching transistors 19 and 19' are turned OFF with a time limiting circuit 28 after a certain time T0 elapses from the stoppage of the output of a contact type rotary encoder to cut current flowing into the contact type rotary encoder. As the pulse output is gone from the contact type rotary encoder, an electric charge is accumulated into a charging capacitor 23 through a charging resistor 21. After the fixed time T0 passes, the voltage of the charging capacitor 23 exceeds the reference voltage VR by resistors 24 and 25 and the output of an arithmetic amplifier 26 changes to a high level from the low level to turn OFF the switching transistors 19 and 19'.
JP22169982A 1982-12-16 1982-12-16 Rotary position detector Pending JPS59111013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22169982A JPS59111013A (en) 1982-12-16 1982-12-16 Rotary position detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22169982A JPS59111013A (en) 1982-12-16 1982-12-16 Rotary position detector

Publications (1)

Publication Number Publication Date
JPS59111013A true JPS59111013A (en) 1984-06-27

Family

ID=16770886

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22169982A Pending JPS59111013A (en) 1982-12-16 1982-12-16 Rotary position detector

Country Status (1)

Country Link
JP (1) JPS59111013A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4889769A (en) * 1972-02-09 1973-11-22
JPS52145271A (en) * 1976-05-29 1977-12-03 Katsuhiko Nakamura Photoelectric rpm meter
JPS5360259A (en) * 1976-11-10 1978-05-30 Seiko Epson Corp Detector
JPS57134797A (en) * 1981-02-13 1982-08-20 Aisin Seiki State reading control method for photo interrupting sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4889769A (en) * 1972-02-09 1973-11-22
JPS52145271A (en) * 1976-05-29 1977-12-03 Katsuhiko Nakamura Photoelectric rpm meter
JPS5360259A (en) * 1976-11-10 1978-05-30 Seiko Epson Corp Detector
JPS57134797A (en) * 1981-02-13 1982-08-20 Aisin Seiki State reading control method for photo interrupting sensor

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