WO2009048910A3 - Sensor assembly comprising a capacitive proximity sensor - Google Patents

Sensor assembly comprising a capacitive proximity sensor Download PDF

Info

Publication number
WO2009048910A3
WO2009048910A3 PCT/US2008/079142 US2008079142W WO2009048910A3 WO 2009048910 A3 WO2009048910 A3 WO 2009048910A3 US 2008079142 W US2008079142 W US 2008079142W WO 2009048910 A3 WO2009048910 A3 WO 2009048910A3
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
conductor
capacitive proximity
substantially flat
major
Prior art date
Application number
PCT/US2008/079142
Other languages
French (fr)
Other versions
WO2009048910A2 (en
Inventor
Dyfrig E Clement
David Cook
Malcolm F Douglas
Robert G Every
Martyn Hagedorn
Helen G James
Gareth M Jones
Frederic Jouvet
Richard A Loyd
Nigel W S Matchett
Philip A Rowlands
Original Assignee
3M Innovative Properties Co
Dyfrig E Clement
David Cook
Malcolm F Douglas
Robert G Every
Martyn Hagedorn
Helen G James
Gareth M Jones
Frederic Jouvet
Richard A Loyd
Nigel W S Matchett
Philip A Rowlands
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 3M Innovative Properties Co, Dyfrig E Clement, David Cook, Malcolm F Douglas, Robert G Every, Martyn Hagedorn, Helen G James, Gareth M Jones, Frederic Jouvet, Richard A Loyd, Nigel W S Matchett, Philip A Rowlands filed Critical 3M Innovative Properties Co
Priority to EP08838447A priority Critical patent/EP2205466A2/en
Priority to JP2010528988A priority patent/JP2011501350A/en
Priority to CN200880111262A priority patent/CN101821133A/en
Publication of WO2009048910A2 publication Critical patent/WO2009048910A2/en
Publication of WO2009048910A3 publication Critical patent/WO2009048910A3/en

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
    • G01D5/14—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
    • 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
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • G01D11/26—Windows; Cover glasses; Sealings therefor
    • 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
    • H03K17/945—Proximity switches
    • H03K17/955—Proximity switches using a capacitive detector
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
    • B60R19/483—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds with obstacle sensors of electric or electronic type
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/96—Touch switches
    • H03K2217/9607—Capacitive touch switches
    • H03K2217/960755—Constructional details of capacitive touch and proximity switches

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

A sensor assembly comprises a capacitive proximity sensor (1) mounted to a shaped surface of a body, such as the internal surface (10) of a vehicle bumper (11), to sense the presence of external objects. The sensor comprises a dielectric film substrate (2) having front and rear major surfaces that, in use, face respectively outwards and inwards of the body, a sensor conductor (6) on the front major surface, and a guard conductor (8) on the rear major surface to provide an electrical shield for the sensor conductor. The surface (10) to which the sensor (1) is mounted is one that does not provide a substantially flat area for direct attachment of the sensor, at least in the sensor conductor region, and, with a view to ensuring the correct functioning of the sensor, the sensor mounting is designed to inhibit the ingress and retention of water/dirt between the sensor and the shaped surface, and to enable a major part of the sensor substrate to be maintained in a substantially flat condition at least in the sensor conductor region.
PCT/US2008/079142 2007-10-10 2008-10-08 Sensor assembly comprising a capacitive proximity sensor WO2009048910A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08838447A EP2205466A2 (en) 2007-10-10 2008-10-08 Sensor assembly comprising a capacitive proximity sensor
JP2010528988A JP2011501350A (en) 2007-10-10 2008-10-08 Sensor assembly having a capacitive proximity sensor
CN200880111262A CN101821133A (en) 2007-10-10 2008-10-08 Sensor module with capacitive proximity sensor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0719807A GB0719807D0 (en) 2007-10-10 2007-10-10 Sensor assembly comprising a capacitive proximity sensor
GB0719807.0 2007-10-10

Publications (2)

Publication Number Publication Date
WO2009048910A2 WO2009048910A2 (en) 2009-04-16
WO2009048910A3 true WO2009048910A3 (en) 2009-05-28

Family

ID=38787941

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/079142 WO2009048910A2 (en) 2007-10-10 2008-10-08 Sensor assembly comprising a capacitive proximity sensor

Country Status (6)

Country Link
EP (1) EP2205466A2 (en)
JP (1) JP2011501350A (en)
KR (1) KR20100085969A (en)
CN (1) CN101821133A (en)
GB (1) GB0719807D0 (en)
WO (1) WO2009048910A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101120700B1 (en) 2010-09-02 2012-03-29 삼성메디슨 주식회사 Ultrasound system and method for providing color doppler mode image
DE102010045008B4 (en) * 2010-09-10 2013-02-28 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt Capacitive distance sensor
JP6265420B2 (en) * 2014-03-19 2018-01-24 本田技研工業株式会社 Vehicle bumper
GB2539659B (en) * 2015-06-22 2019-05-01 Octo Telematics Spa Collision Diagnosis for a Traffic Event
GB2542200B (en) * 2015-09-14 2018-12-26 Jaguar Land Rover Ltd Sensor and method
CN105172727A (en) * 2015-10-14 2015-12-23 苏州新协力特种工业模板有限公司 Bumper capable of realizing early warning of collisions
JP6729414B2 (en) * 2017-01-18 2020-07-22 株式会社デンソー Vehicle collision detection device
FR3084002B1 (en) * 2018-07-18 2020-07-10 Fogale Nanotech APPARATUS PROVIDED WITH CAPACITIVE DETECTION AND ELECTRICAL LINE (S)
EP3851256A4 (en) * 2018-09-14 2022-06-01 Alps Alpine Co., Ltd. Proximity detection system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6441623B1 (en) * 1999-07-29 2002-08-27 Ab Automotive Electronics Ltd. Capacitive proximity sensor for automotive use
GB2376075A (en) * 2001-06-01 2002-12-04 Ab Automotive Electronics Ltd Bumper proximity detector using capacitive sensor
US6879250B2 (en) * 2001-04-04 2005-04-12 Compagnie Plastic Omnium For a motor vehicle, an outside element providing a capacitive sensor, and a piece of bodywork including such an outside element
WO2006092627A1 (en) * 2005-03-02 2006-09-08 Ab Automotive Electronics Ltd Capacitive sensor and method of production

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6441623B1 (en) * 1999-07-29 2002-08-27 Ab Automotive Electronics Ltd. Capacitive proximity sensor for automotive use
US6879250B2 (en) * 2001-04-04 2005-04-12 Compagnie Plastic Omnium For a motor vehicle, an outside element providing a capacitive sensor, and a piece of bodywork including such an outside element
GB2376075A (en) * 2001-06-01 2002-12-04 Ab Automotive Electronics Ltd Bumper proximity detector using capacitive sensor
WO2006092627A1 (en) * 2005-03-02 2006-09-08 Ab Automotive Electronics Ltd Capacitive sensor and method of production

Also Published As

Publication number Publication date
CN101821133A (en) 2010-09-01
GB0719807D0 (en) 2007-11-21
WO2009048910A2 (en) 2009-04-16
EP2205466A2 (en) 2010-07-14
KR20100085969A (en) 2010-07-29
JP2011501350A (en) 2011-01-06

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