FR2722287A1 - Dispositif de detection d'objets. - Google Patents

Dispositif de detection d'objets. Download PDF

Info

Publication number
FR2722287A1
FR2722287A1 FR9508270A FR9508270A FR2722287A1 FR 2722287 A1 FR2722287 A1 FR 2722287A1 FR 9508270 A FR9508270 A FR 9508270A FR 9508270 A FR9508270 A FR 9508270A FR 2722287 A1 FR2722287 A1 FR 2722287A1
Authority
FR
France
Prior art keywords
output
output signal
circuit
variation
detection device
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
FR9508270A
Other languages
English (en)
French (fr)
Inventor
Kazunori Kawashima
Hajime Oda
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.)
Seikosha KK
Original Assignee
Seikosha KK
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 Seikosha KK filed Critical Seikosha KK
Publication of FR2722287A1 publication Critical patent/FR2722287A1/fr
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/088—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices operating with electric fields
    • 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
    • G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
    • G01D1/12—Measuring arrangements giving results other than momentary value of variable, of general application giving a maximum or minimum of a value
    • 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
    • G01D5/24—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 capacitance
    • G01D5/2405—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 capacitance by varying dielectric

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Electronic Switches (AREA)
FR9508270A 1994-07-08 1995-07-07 Dispositif de detection d'objets. Pending FR2722287A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15734994A JPH0821741A (ja) 1994-07-08 1994-07-08 物体検知装置

Publications (1)

Publication Number Publication Date
FR2722287A1 true FR2722287A1 (fr) 1996-01-12

Family

ID=15647742

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9508270A Pending FR2722287A1 (fr) 1994-07-08 1995-07-07 Dispositif de detection d'objets.

Country Status (4)

Country Link
JP (1) JPH0821741A (ja)
DE (1) DE19524884A1 (ja)
FR (1) FR2722287A1 (ja)
GB (1) GB2291204A (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1145033A3 (en) * 1999-08-02 2001-12-05 Zircon Corporation Apparatus having a single sensor for locating a concealed conductor energized by an alternating electric field
JP2001340318A (ja) * 2000-05-31 2001-12-11 Secom Co Ltd 静電容量型計測装置及び呼吸計測装置
FR2844349B1 (fr) * 2002-09-06 2005-06-24 Nanotec Solution Detecteur de proximite par capteur capacitif
DE102006032372A1 (de) * 2005-07-19 2007-02-15 Preh Gmbh Kapazitiver Regensensor
JP2007139520A (ja) * 2005-11-16 2007-06-07 Aisin Seiki Co Ltd 信号処理装置
JP4816487B2 (ja) * 2007-02-13 2011-11-16 アイシン精機株式会社 静電容量検出装置
JP2011094997A (ja) * 2009-10-27 2011-05-12 Alps Electric Co Ltd 無線センサ装置
US9551804B1 (en) 2015-09-15 2017-01-24 Koninklijke Philips N.V. Motion detection device and corresponding method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031408A (en) * 1975-10-03 1977-06-21 George Ernest Holz Proximity switching system
EP0175362A2 (en) * 1984-09-19 1986-03-26 Omron Tateisi Electronics Co. Capacitive-type detection device
DE3518282A1 (de) * 1985-05-22 1986-11-27 Raymond 8201 Schonstett Douw Redundanter naeherungsschalter

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266028A (en) * 1963-03-09 1966-08-09 Ferranti Packard Ltd Vehicle detector with capacitor storage element
DE2508706C2 (de) * 1974-05-02 1984-10-11 International Business Machines Corp., Armonk, N.Y. Schaltungsanordnung zur Codierung von Datenbitfolgen
US4055129A (en) * 1975-07-16 1977-10-25 The Singer Company Digital differential capacitance proximity switch
GB1520074A (en) * 1976-03-29 1978-08-02 Sp Konstrukt Bjuro Promysh Avt Vehicle presence detector
DE3111684A1 (de) * 1981-03-25 1982-10-14 FHN-Verbindungstechnik GmbH, 8501 Eckental "elektronische steuerschaltung fuer den antriebsmotor eines versenkbaren autofensters"
GB2125598B (en) * 1982-06-03 1986-01-15 Microsense Systems Ltd Induction loop vehicle detector
EP0096568A1 (en) * 1982-06-09 1983-12-21 Deere & Company Metal detection system
WO1989002635A1 (en) * 1987-09-16 1989-03-23 Simpson, Roland, Bruce Proximity sensor
GB2279750A (en) * 1993-07-10 1995-01-11 Paul Thomas Ryan Capacitive proximity sensor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031408A (en) * 1975-10-03 1977-06-21 George Ernest Holz Proximity switching system
EP0175362A2 (en) * 1984-09-19 1986-03-26 Omron Tateisi Electronics Co. Capacitive-type detection device
DE3518282A1 (de) * 1985-05-22 1986-11-27 Raymond 8201 Schonstett Douw Redundanter naeherungsschalter

Also Published As

Publication number Publication date
GB2291204A (en) 1996-01-17
GB9513852D0 (en) 1995-09-06
JPH0821741A (ja) 1996-01-23
DE19524884A1 (de) 1996-01-11

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