JPS5486362A - Rotating angle detector - Google Patents
Rotating angle detectorInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5028861A (en) * | 1973-07-16 | 1975-03-24 |
-
1977
- 1977-12-21 JP JP15519877A patent/JPS5486362A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5028861A (en) * | 1973-07-16 | 1975-03-24 |
Cited By (9)
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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