JPS5769202A - Signal processing circuit - Google Patents

Signal processing circuit

Info

Publication number
JPS5769202A
JPS5769202A JP14596380A JP14596380A JPS5769202A JP S5769202 A JPS5769202 A JP S5769202A JP 14596380 A JP14596380 A JP 14596380A JP 14596380 A JP14596380 A JP 14596380A JP S5769202 A JPS5769202 A JP S5769202A
Authority
JP
Japan
Prior art keywords
signal
differentiated
electromagnetic pickup
comparator
processing 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
JP14596380A
Other languages
Japanese (ja)
Other versions
JPH0216451B2 (en
Inventor
Matsuhisa Yoshida
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP14596380A priority Critical patent/JPS5769202A/en
Publication of JPS5769202A publication Critical patent/JPS5769202A/en
Publication of JPH0216451B2 publication Critical patent/JPH0216451B2/ja
Granted 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
    • G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Manipulation Of Pulses (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To provide a signal processing circuit which stable prevents erroneous detection operation due to mechanical vibration noise by a method wherein a waveform shaped pulse voltage of which phase is the same as that of the output signal of an electromagnetic pickup is differentiated and the differentiated signal is then overlaid on the signal of the electromagnetic pickup. CONSTITUTION:The output signal from an electromagnetic pickup 13 is given to a comparator IC1 through a diode for clamping D2. The output of the comparator IC1 is amplified by a transistor Tr1. The signal amplified by the transistor Tr1 is differentiated by a condenser C2 and a resistor R3, and this differentiated waveform voltage is then overlaid on the signal of the electromagnetic pickup 13. By this,noise is brought down below the threshold level of the comparator IC1.
JP14596380A 1980-10-17 1980-10-17 Signal processing circuit Granted JPS5769202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14596380A JPS5769202A (en) 1980-10-17 1980-10-17 Signal processing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14596380A JPS5769202A (en) 1980-10-17 1980-10-17 Signal processing circuit

Publications (2)

Publication Number Publication Date
JPS5769202A true JPS5769202A (en) 1982-04-27
JPH0216451B2 JPH0216451B2 (en) 1990-04-17

Family

ID=15397056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14596380A Granted JPS5769202A (en) 1980-10-17 1980-10-17 Signal processing circuit

Country Status (1)

Country Link
JP (1) JPS5769202A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62186608A (en) * 1986-02-12 1987-08-15 Oki Electric Ind Co Ltd Waveform shaping circuit
JPH0626809A (en) * 1992-07-10 1994-02-04 Mitsubishi Electric Corp Plate for detecting signal

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49107946U (en) * 1973-01-05 1974-09-14
JPS5041447U (en) * 1973-08-15 1975-04-26
JPS5080750A (en) * 1973-11-14 1975-07-01
JPS5485074A (en) * 1977-11-25 1979-07-06 Ford Motor Co Specimen* holding frequency* voltage transducer circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49107946U (en) * 1973-01-05 1974-09-14
JPS5041447U (en) * 1973-08-15 1975-04-26
JPS5080750A (en) * 1973-11-14 1975-07-01
JPS5485074A (en) * 1977-11-25 1979-07-06 Ford Motor Co Specimen* holding frequency* voltage transducer circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62186608A (en) * 1986-02-12 1987-08-15 Oki Electric Ind Co Ltd Waveform shaping circuit
JPH0626809A (en) * 1992-07-10 1994-02-04 Mitsubishi Electric Corp Plate for detecting signal

Also Published As

Publication number Publication date
JPH0216451B2 (en) 1990-04-17

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