JPS5486362A - Rotating angle detector - Google Patents

Rotating angle detector

Info

Publication number
JPS5486362A
JPS5486362A JP15519877A JP15519877A JPS5486362A JP S5486362 A JPS5486362 A JP S5486362A JP 15519877 A JP15519877 A JP 15519877A JP 15519877 A JP15519877 A JP 15519877A JP S5486362 A JPS5486362 A JP S5486362A
Authority
JP
Japan
Prior art keywords
voltage
output
constant
variable
detector
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
JP15519877A
Other languages
Japanese (ja)
Inventor
Takeshi Shimamoto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP15519877A priority Critical patent/JPS5486362A/en
Publication of JPS5486362A publication Critical patent/JPS5486362A/en
Pending 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 make the detector strong to electromagnetical noises, expand the range of the number of revolutions used and achieve the improvement in reliability by converting the output voltage of a detection head to a constant voltage and changing the cutoff frequency of a low pass filter in proportion to the output of the detection head.
CONSTITUTION: A variable attenuator is constituted by an input resistance 5 and a variable resistance element 7 being a variable impedance element and a low pass filter of varible cutoff frequencies is constituted by the capacitor 6 parallel connected to the element 7. Here, an amplifier 8 has a constant gain and this constitutes such a constant output level feedback circuit as the output voltage of terminal 12 becomes constant irrespective of the input voltage value of terminal 11, with a rectifier circuit 9 connected to its output side, a variable resistance element circuit 10 comprising including a voltage comparator 10a and a reference voltage source 10b and a feedback circuit by the variable attenuator. Thereby, the detector which is strong to electromagnetical noises and is yet wide in the range of number of revolutions used and is high in reliability may be obtained.
COPYRIGHT: (C)1979,JPO&Japio
JP15519877A 1977-12-21 1977-12-21 Rotating angle detector Pending JPS5486362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15519877A JPS5486362A (en) 1977-12-21 1977-12-21 Rotating angle detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15519877A JPS5486362A (en) 1977-12-21 1977-12-21 Rotating angle detector

Publications (1)

Publication Number Publication Date
JPS5486362A true JPS5486362A (en) 1979-07-09

Family

ID=15600634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15519877A Pending JPS5486362A (en) 1977-12-21 1977-12-21 Rotating angle detector

Country Status (1)

Country Link
JP (1) JPS5486362A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750608A (en) * 1980-07-19 1982-03-25 Lucas Industries Ltd Electromagnetic transducer
JPS6373156A (en) * 1986-09-17 1988-04-02 Mitsubishi Heavy Ind Ltd Projecting speed detecting apparatus
JPH01148072U (en) * 1988-04-01 1989-10-13
JPH01277764A (en) * 1988-04-30 1989-11-08 Sumitomo Electric Ind Ltd Detecting circuit of wheel speed
JPH01320469A (en) * 1988-06-22 1989-12-26 Mazda Motor Corp Slip detection device for vehicle
JPH0280964A (en) * 1988-09-16 1990-03-22 Nippon Denso Co Ltd Apparatus for processing wheel speed signal
JPH02107021U (en) * 1989-02-15 1990-08-24
JP2018023098A (en) * 2016-08-01 2018-02-08 エヌエックスピー ビー ヴィＮｘｐ Ｂ．Ｖ． Method and system for conducting high resolution tuning of phase in active load modulation in nfc system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028861A (en) * 1973-07-16 1975-03-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028861A (en) * 1973-07-16 1975-03-24

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750608A (en) * 1980-07-19 1982-03-25 Lucas Industries Ltd Electromagnetic transducer
JPH0419491B2 (en) * 1980-07-19 1992-03-30 Lucas Ind Plc
JPS6373156A (en) * 1986-09-17 1988-04-02 Mitsubishi Heavy Ind Ltd Projecting speed detecting apparatus
JPH01148072U (en) * 1988-04-01 1989-10-13
JPH01277764A (en) * 1988-04-30 1989-11-08 Sumitomo Electric Ind Ltd Detecting circuit of wheel speed
JPH01320469A (en) * 1988-06-22 1989-12-26 Mazda Motor Corp Slip detection device for vehicle
JPH0280964A (en) * 1988-09-16 1990-03-22 Nippon Denso Co Ltd Apparatus for processing wheel speed signal
JPH02107021U (en) * 1989-02-15 1990-08-24
JP2018023098A (en) * 2016-08-01 2018-02-08 エヌエックスピー ビー ヴィＮｘｐ Ｂ．Ｖ． Method and system for conducting high resolution tuning of phase in active load modulation in nfc system

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