GB2291204A - Object sensing apparatus - Google Patents

Object sensing apparatus Download PDF

Info

Publication number
GB2291204A
GB2291204A GB9513852A GB9513852A GB2291204A GB 2291204 A GB2291204 A GB 2291204A GB 9513852 A GB9513852 A GB 9513852A GB 9513852 A GB9513852 A GB 9513852A GB 2291204 A GB2291204 A GB 2291204A
Authority
GB
United Kingdom
Prior art keywords
output
circuit
sensing apparatus
object sensing
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.)
Withdrawn
Application number
GB9513852A
Other languages
English (en)
Other versions
GB9513852D0 (en
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 GB9513852D0 publication Critical patent/GB9513852D0/en
Publication of GB2291204A publication Critical patent/GB2291204A/en
Withdrawn legal-status Critical Current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)
GB9513852A 1994-07-08 1995-07-07 Object sensing apparatus Withdrawn GB2291204A (en)

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 (2)

Publication Number Publication Date
GB9513852D0 GB9513852D0 (en) 1995-09-06
GB2291204A true GB2291204A (en) 1996-01-17

Family

ID=15647742

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9513852A Withdrawn GB2291204A (en) 1994-07-08 1995-07-07 Object sensing apparatus

Country Status (4)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001009635A2 (en) * 1999-08-02 2001-02-08 Zircon Corporation Apparatus having a single sensor for locating a concealed conductor energized by an alternating electric field
US9551804B1 (en) 2015-09-15 2017-01-24 Koninklijke Philips N.V. Motion detection device and corresponding method

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1012196A (en) * 1963-03-09 1965-12-08 Ferranti Ltd Improvements relating to metal detectors
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
EP0096568A1 (en) * 1982-06-09 1983-12-21 Deere & Company Metal detection system
GB2125598A (en) * 1982-06-03 1984-03-07 Microsense Systems Ltd Induction loop vehicle detector
US4453112A (en) * 1981-03-25 1984-06-05 Saint-Gobain Vitrage Electronic safety device for controlling the drive motor attached to a sliding window
GB2228574A (en) * 1987-09-16 1990-08-29 Simpson Roland B Proximity sensor
GB2279750A (en) * 1993-07-10 1995-01-11 Paul Thomas Ryan Capacitive proximity sensor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2508706C2 (de) * 1974-05-02 1984-10-11 International Business Machines Corp., Armonk, N.Y. Schaltungsanordnung zur Codierung von Datenbitfolgen
US4031408A (en) * 1975-10-03 1977-06-21 George Ernest Holz Proximity switching system
US4748390A (en) * 1984-09-19 1988-05-31 Omron Tateisi Electronics Co. Capacitive-type detection device
DE3518282A1 (de) * 1985-05-22 1986-11-27 Raymond 8201 Schonstett Douw Redundanter naeherungsschalter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1012196A (en) * 1963-03-09 1965-12-08 Ferranti Ltd Improvements relating to metal detectors
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
US4453112A (en) * 1981-03-25 1984-06-05 Saint-Gobain Vitrage Electronic safety device for controlling the drive motor attached to a sliding window
GB2125598A (en) * 1982-06-03 1984-03-07 Microsense Systems Ltd Induction loop vehicle detector
EP0096568A1 (en) * 1982-06-09 1983-12-21 Deere & Company Metal detection system
GB2228574A (en) * 1987-09-16 1990-08-29 Simpson Roland B Proximity sensor
GB2279750A (en) * 1993-07-10 1995-01-11 Paul Thomas Ryan Capacitive proximity sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001009635A2 (en) * 1999-08-02 2001-02-08 Zircon Corporation Apparatus having a single sensor for locating a concealed conductor energized by an alternating electric field
WO2001009635A3 (en) * 1999-08-02 2001-09-07 Zircon Corp Apparatus having a single sensor for locating a concealed conductor energized by an alternating electric field
US9551804B1 (en) 2015-09-15 2017-01-24 Koninklijke Philips N.V. Motion detection device and corresponding method

Also Published As

Publication number Publication date
FR2722287A1 (fr) 1996-01-12
GB9513852D0 (en) 1995-09-06
JPH0821741A (ja) 1996-01-23
DE19524884A1 (de) 1996-01-11

Similar Documents

Publication Publication Date Title
US4446410A (en) Control circuit for a solenoid-operated actuator
KR970067334A (ko) 모놀리딕 집적 센서 회로
KR900005178A (ko) 자기교정형 가속도계
Abrar Design and implementation of astable multivibrator using 555 timer
GB2291204A (en) Object sensing apparatus
JPS6410704A (en) High frequency detecting circuit
US4959558A (en) Circuit arrangement for detecting cross-over by an alternating voltage of a fixed reference voltage level
GB2134736A (en) Signal generating circuit
GB2086680A (en) Integratable single pulse circuit
US5531097A (en) Absolute humidity meter
US4211971A (en) Ratio meter for capacitive-type displacement converter
KR890004068A (ko) 점화 제어회로
US3131316A (en) Threshold circuit utilizing series capacitor-diode combination and employing diode clamp to maintain information transmission
US4182963A (en) Pulse shaping circuit
US20070145244A1 (en) Image sensor
US3566161A (en) Electronic timer circuit including linear ramp function generator and/or progress pointer
GB1390510A (en) Circuits adapted to produce output signals of constant slope
JPH07130082A (ja) ゼロクロス検出回路
KR940018694A (ko) 카메라의 무한거리 판정회로
KR100576103B1 (ko) 리딩 에지 블랭킹 회로
SU1555158A1 (ru) Устройство контрол превышени допустимых параметров транспортного средства
JP2611631B2 (ja) ピークホールド回路
KR0163907B1 (ko) 펄스폭이 조정 가능한 상승 에지 검출기
SU1396245A1 (ru) Генератор импульсов
JPH10190421A (ja) 信号処理回路

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)