JPS568509A - Modulating/demodulating circuit for inductosyn - Google Patents

Modulating/demodulating circuit for inductosyn

Info

Publication number
JPS568509A
JPS568509A JP8344579A JP8344579A JPS568509A JP S568509 A JPS568509 A JP S568509A JP 8344579 A JP8344579 A JP 8344579A JP 8344579 A JP8344579 A JP 8344579A JP S568509 A JPS568509 A JP S568509A
Authority
JP
Japan
Prior art keywords
voltage
amplifiers
amplitude
delivered
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.)
Granted
Application number
JP8344579A
Other languages
Japanese (ja)
Other versions
JPS6220485B2 (en
Inventor
Yukio Suga
Jiro Tanuma
Naoji Akutsu
Takeshi Matsumura
Takeshi Oshima
Junzo Okunaka
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.)
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Oki Electric Industry 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 Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP8344579A priority Critical patent/JPS568509A/en
Publication of JPS568509A publication Critical patent/JPS568509A/en
Publication of JPS6220485B2 publication Critical patent/JPS6220485B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE: To always secure the constant amplitude of the demodulated signal, by detecting the peak value of the demodulated signal and then giving the negative feedback to the detection signal.
CONSTITUTION: The outputs of demodulating circuits 10a and 10b are sent to inverse amplifiers 13a and 13b via amplifiers 9c and 9d each. Here amplitude detecting circuit 14 detects the sum of the highest negative voltage among the voltage delivered from amplifiers 9c and 9d plus 13a and 13b each and the voltage obtained by giving the 1/21/2 multiplication to the general sum of the negative voltage. And then this detected voltage is delivered in the form of the amplitude of the voltage delivered from amplifiers 9c and 9d plus 13a and 13b each. Accordingly, the outpt of adder circuit 12 increases if the detected voltage decreases. On the contrary, the output of circuit 12 decreases if the detected voltage increases. As a result, the gap varies between the stator and the rotor of the inductosyn, and then the mutual inductance may change among print conductors 7a, 7b and 7c each. But the variation can be avoided for the amplitude of the voltage delivered from amplifiers 13a and 13b.
COPYRIGHT: (C)1981,JPO&Japio
JP8344579A 1979-07-03 1979-07-03 Modulating/demodulating circuit for inductosyn Granted JPS568509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8344579A JPS568509A (en) 1979-07-03 1979-07-03 Modulating/demodulating circuit for inductosyn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8344579A JPS568509A (en) 1979-07-03 1979-07-03 Modulating/demodulating circuit for inductosyn

Publications (2)

Publication Number Publication Date
JPS568509A true JPS568509A (en) 1981-01-28
JPS6220485B2 JPS6220485B2 (en) 1987-05-07

Family

ID=13802628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8344579A Granted JPS568509A (en) 1979-07-03 1979-07-03 Modulating/demodulating circuit for inductosyn

Country Status (1)

Country Link
JP (1) JPS568509A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011154785A3 (en) * 2010-06-10 2012-02-23 パナソニック株式会社 Position sensor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0688002U (en) * 1993-01-28 1994-12-22 関東自動車工業株式会社 Rear combination lamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011154785A3 (en) * 2010-06-10 2012-02-23 パナソニック株式会社 Position sensor
JP5331246B2 (en) * 2010-06-10 2013-10-30 パナソニック株式会社 Position sensor
KR101333403B1 (en) * 2010-06-10 2013-11-28 파나소닉 주식회사 Position sensor
US9097558B2 (en) 2010-06-10 2015-08-04 Panasonic Intellectual Property Management Co., Ltd. Position sensor

Also Published As

Publication number Publication date
JPS6220485B2 (en) 1987-05-07

Similar Documents

Publication Publication Date Title
JPS5683284A (en) Variable speed operating device for induction motor
JPS55136708A (en) Voltage current conversion circuit
JPS568509A (en) Modulating/demodulating circuit for inductosyn
JPS5737907A (en) Fm wave detector
JPS555566A (en) Feedback frequency division circuit
ATE128283T1 (en) DIFFERENTIAL CURRENT CIRCUIT BREAKER WITH TRANSDUCTOR CIRCUIT WITH DEVICE FOR BALANCERING SIGNAL CURVES.
JPS57206105A (en) Protecting device for output device of amplifier
US4471311A (en) Detector circuit having AGC function
JPS52110449A (en) Torsional vibration detector for generator shaft
JPS55100075A (en) Sine wave inverter
JPS5634203A (en) Fm demodulator
JPS55156825A (en) Measuring method for vacuum degree
JPS54120818A (en) Torque detector for multiphase ac machine
JPS54115748A (en) Static protective relaying equipment
JPS55159109A (en) Capacity type displacement converter
JPS55153405A (en) Fm detection circuit
JPS54121025A (en) Signal generating device for machine operation
JPS52147748A (en) Phaseless voltage detector
JPS5482159A (en) Static relay
JPS5338380A (en) Peak detecting circuit
JPS5780807A (en) Am wave-detecting circuit having agc function
JPS558224A (en) Frequency converter control system
JPS5644859A (en) Sensing circuit of maximum electric current
JPS54119646A (en) Ac voltage abnormality detector
JPS56136005A (en) Biasing circuit