ES8202143A1 - Proximity detector - Google Patents

Proximity detector

Info

Publication number
ES8202143A1
ES8202143A1 ES498551A ES498551A ES8202143A1 ES 8202143 A1 ES8202143 A1 ES 8202143A1 ES 498551 A ES498551 A ES 498551A ES 498551 A ES498551 A ES 498551A ES 8202143 A1 ES8202143 A1 ES 8202143A1
Authority
ES
Spain
Prior art keywords
coil
output
detector
proximity
oscillator
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.)
Expired
Application number
ES498551A
Other languages
Spanish (es)
Other versions
ES498551A0 (en
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.)
Jaeger SA
Original Assignee
Jaeger SA
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 Jaeger SA filed Critical Jaeger SA
Publication of ES498551A0 publication Critical patent/ES498551A0/en
Publication of ES8202143A1 publication Critical patent/ES8202143A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/061—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle pick-up devices without mechanical contacts
    • 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
    • G01D5/14—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 the magnitude of a current or voltage
    • G01D5/20—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 the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/2006—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 the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
    • G01D5/202—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 the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils by movable a non-ferromagnetic conductive element
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electronic Switches (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

A proximity detector has an LC circuit in which the inductance coil 14 is to detect the presence or absence of a passing conducting part 10. The coil is powered by a variable gain oscillator 16 having a voltage output which varies according to variation of its gain control input E. An amplitude detector 18 gives a variable output which is a function of the amplitude of the oscillations in the coil, which are damped when part 10 is present. This is compared with a reference voltage from source 22 by amplifier 20 providing an output signal Vs to E to maintain the output voltage of oscillator 16 across coil 14 substantially constant. Signal Vs is of square wave form and provides an indication and measure of the proximity of each tooth (part 10) in succession to the coil. The detector may be part of an ignition system of an internal combustion engine.
ES498551A 1980-01-11 1980-12-23 Proximity detector Expired ES8202143A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8000602A FR2473700A1 (en) 1980-01-11 1980-01-11 PROXIMITY SENSOR

Publications (2)

Publication Number Publication Date
ES498551A0 ES498551A0 (en) 1982-01-01
ES8202143A1 true ES8202143A1 (en) 1982-01-01

Family

ID=9237456

Family Applications (1)

Application Number Title Priority Date Filing Date
ES498551A Expired ES8202143A1 (en) 1980-01-11 1980-12-23 Proximity detector

Country Status (6)

Country Link
AR (1) AR226089A1 (en)
DE (1) DE3100432A1 (en)
ES (1) ES8202143A1 (en)
FR (1) FR2473700A1 (en)
GB (1) GB2067295B (en)
IT (1) IT1167809B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5851065U (en) * 1981-10-01 1983-04-06 三菱電機株式会社 internal combustion engine ignition system
JPS5851068U (en) * 1981-10-01 1983-04-06 三菱電機株式会社 internal combustion engine ignition system
US4445923A (en) * 1982-12-30 1984-05-01 Owens-Illinois, Inc. Position sensing device
JPS59141001A (en) * 1983-02-01 1984-08-13 Mitsubishi Electric Corp Detecting method for effective end position of metallic pipe
GB2156524A (en) * 1984-03-22 1985-10-09 Cambridge Electronic Ind Tachogenerators
DE3617941A1 (en) * 1986-05-28 1987-12-03 Still Gmbh INDUCTIVE WORKING SENSOR DEVICE
GB2222257A (en) * 1988-07-19 1990-02-28 Glacier Metal Co Ltd Displacement sensor
DE3912737C2 (en) * 1989-04-19 2001-06-28 Truetzschler Gmbh & Co Kg Securing device for the openable parts of protective covers in textile machines, in particular spinning preparation machines
DE3935594C2 (en) * 1989-10-26 1997-04-30 Hella Kg Hueck & Co Circuit arrangement for measuring and evaluating the speed of a DC motor or the adjustment path of a DC motor drive in a motor vehicle
FR2664973B1 (en) * 1990-07-20 1992-10-23 Schlumberger Ind Sa DEVICE FOR DETECTING THE ROTATION OF A ROTATING ELEMENT SUCH AS THE TURBINE OF A WATER METER.
DE4038515A1 (en) * 1990-12-03 1992-06-04 Vogt Electronic Ag DEVICE FOR STATIC AND / OR DYNAMIC LENGTH AND / OR ANGLE MEASUREMENT
US5670886A (en) * 1991-05-22 1997-09-23 Wolf Controls Corporation Method and apparatus for sensing proximity or position of an object using near-field effects
DE4303222A1 (en) * 1993-02-04 1994-08-11 Krupp Foerdertechnik Gmbh Laying vehicle for layable bridges
GB0006144D0 (en) * 2000-03-14 2000-05-03 Isis Innovation Position and electromagnetic field sensor
DE60226847D1 (en) * 2001-03-15 2008-07-10 Omron Tateisi Electronics Co PROXIMITY SENSOR
US8680848B2 (en) 2010-06-03 2014-03-25 Allegro Microsystems, Llc Motion sensor, method, and computer-readable storage medium providing a motion sensor that adjusts gains of two circuit channels to bring the gains close to each other
US8450996B2 (en) 2010-06-03 2013-05-28 Allegro Microsystems, Llc Motion sensor, method, and computer-readable storage medium providing a motion sensor with a magnetic field sensing element for generating a magnetic field signal and a state processor to identify a plurality of states corresponding to ranges of values of the magnetic field signal having a reduced amount of state chatter
US8446146B2 (en) 2010-06-03 2013-05-21 Allegro Microsystems, Inc. Motion sensor, method, and computer-readable storage medium providing a motion sensor with a validated output signal from the motion sensor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387776A (en) * 1964-08-07 1968-06-11 Rank Organisation Ltd Gauging device including feedback means applying a signal comparison means to control the level of a detected signal
DE1951137B2 (en) * 1969-10-10 1973-03-01 lfm electronic gerate GmbH & Co KG, 4300 Essen ELECTRONIC, CONTACTLESS SWITCHING DEVICE
DE1952679A1 (en) * 1969-10-20 1971-04-29 Lochstampfer Horst Dipl Ing Electronic proximity initiator
GB1448877A (en) * 1973-09-04 1976-09-08 Weber G Electronic switching device for sensing a body and for converting such sensing into an electrical signal
FR2287676A1 (en) * 1974-10-10 1976-05-07 Itt Magnetic proximity detector for metal parts - has oscillator with control input and resonant circuit emitting signal
GB1561641A (en) * 1976-08-05 1980-02-27 Redland Automation Ltd Presence detector apparatus
US4255789A (en) * 1978-02-27 1981-03-10 The Bendix Corporation Microprocessor-based electronic engine control system
DE2831598C2 (en) * 1978-07-19 1986-01-02 Robert Bosch Gmbh, 7000 Stuttgart Device for distance and speed measurement

Also Published As

Publication number Publication date
DE3100432A1 (en) 1982-01-21
FR2473700A1 (en) 1981-07-17
GB2067295B (en) 1983-12-14
AR226089A1 (en) 1982-05-31
IT1167809B (en) 1987-05-20
FR2473700B1 (en) 1983-12-23
DE3100432C2 (en) 1989-06-15
ES498551A0 (en) 1982-01-01
GB2067295A (en) 1981-07-22
IT8109309A0 (en) 1981-01-08

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