SE8900615L - PRESSURE SENSOR - Google Patents

PRESSURE SENSOR

Info

Publication number
SE8900615L
SE8900615L SE8900615A SE8900615A SE8900615L SE 8900615 L SE8900615 L SE 8900615L SE 8900615 A SE8900615 A SE 8900615A SE 8900615 A SE8900615 A SE 8900615A SE 8900615 L SE8900615 L SE 8900615L
Authority
SE
Sweden
Prior art keywords
elements
cavities
spacer member
another
pressure sensor
Prior art date
Application number
SE8900615A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE512477C2 (en
SE8900615D0 (en
Inventor
J Rudeke
Original Assignee
Arcus Vita Ab
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 Arcus Vita Ab filed Critical Arcus Vita Ab
Priority to SE8900615A priority Critical patent/SE512477C2/en
Publication of SE8900615D0 publication Critical patent/SE8900615D0/en
Priority to PCT/SE1990/000126 priority patent/WO1990010204A1/en
Publication of SE8900615L publication Critical patent/SE8900615L/en
Publication of SE512477C2 publication Critical patent/SE512477C2/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/22—Status alarms responsive to presence or absence of persons
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/20—Actuation by change of fluid pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
    • H01H3/141—Cushion or mat switches
    • H01H3/142—Cushion or mat switches of the elongated strip type
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E05F15/44—Detection using safety edges responsive to changes in electrical conductivity

Abstract

A pressure sensor which comprises two elongated thin and plate-like elements which are spaced from one another at given locations along their lengths by means of a spacer member, and which sensor is configured so that an electric contact is established when the two elements are brought into contact with one another. The spacer member has the form of a thin plate from which sections of material have been removed so as to form a plurality of cavities or apertures between the elements, these cavities being disposed in successive, sequential relationship along the length of the sensor. The invention is characterized in that all cavities (4-8) are connected to atmosphere through air passages (9-11) which extend in the spacer member (3), and in that at least a first (1) of the plate-like elements intended to be subjected to a pressure force from a person or an object is made of a metallic springy material, and in that both of the elements (1, 2) are electrically conductive so as to close a current path between two electric conductors (15, 16) extending to a respective element (1, 2) irrespective of the cavity (4-8), in which the elements (1, 2) are brought into contact with one another when the pressure sensor is subjected to a force from an object or a person.
SE8900615A 1989-02-22 1989-02-22 pressure Sensor SE512477C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE8900615A SE512477C2 (en) 1989-02-22 1989-02-22 pressure Sensor
PCT/SE1990/000126 WO1990010204A1 (en) 1989-02-22 1990-02-22 A pressure sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8900615A SE512477C2 (en) 1989-02-22 1989-02-22 pressure Sensor

Publications (3)

Publication Number Publication Date
SE8900615D0 SE8900615D0 (en) 1989-02-22
SE8900615L true SE8900615L (en) 1990-08-23
SE512477C2 SE512477C2 (en) 2000-03-20

Family

ID=20375134

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8900615A SE512477C2 (en) 1989-02-22 1989-02-22 pressure Sensor

Country Status (2)

Country Link
SE (1) SE512477C2 (en)
WO (1) WO1990010204A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU663640B2 (en) * 1993-02-22 1995-10-12 Illinois Tool Works Inc. Membrane switch
US5629488A (en) * 1995-12-22 1997-05-13 Breed Automotive Technology, Inc. Force sensor and method of making same
GB9622459D0 (en) * 1996-10-29 1997-01-08 Rentokil Ltd Rodent detection apparatus
GB9717280D0 (en) * 1997-08-14 1997-10-22 Draftex Ind Ltd Force-responsive detectors and systems
JP2001516124A (en) 1997-08-14 2001-09-25 ドラフテックス インダストリーズ リミティド Force responsive detector and device
GB2331627B (en) * 1997-11-22 2001-09-12 Draftex Ind Ltd Force-responsive detectors and systems
AU2001241755B2 (en) * 2000-02-23 2005-09-01 Bed-Check Corporation Pressure sensitive mat with breathing tube apparatus
CA2405312C (en) 2000-04-03 2010-02-16 Brunel University Conductive textile
US6329617B1 (en) * 2000-09-19 2001-12-11 Lester E. Burgess Pressure activated switching device
GB0404419D0 (en) 2004-02-27 2004-03-31 Intelligent Textiles Ltd Electrical components and circuits constructed as textiles
SE528725C2 (en) 2005-05-31 2007-01-30 Ole Hansen Bed alarm sensor and device
CN105361330B (en) * 2011-02-17 2019-02-15 耐克创新有限合伙公司 Shoes with sensing system
US8458042B1 (en) 2011-03-02 2013-06-04 King Koil Licensing Company, Inc. Methods for selecting a bedding mattress
US20130213146A1 (en) 2012-02-22 2013-08-22 Nike, Inc. Footwear Having Sensor System
US10926133B2 (en) 2013-02-01 2021-02-23 Nike, Inc. System and method for analyzing athletic activity
EP3341511B1 (en) 2015-12-18 2019-08-21 Intelligent Textiles Limited Conductive fabric, method of manufacturing a conductive fabric and apparatus therefor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929893A (en) * 1958-10-02 1960-03-22 Stanley Works Electric mat switch
US3710054A (en) * 1971-06-07 1973-01-09 Tapeswitch Corp Ribbon switch means
US3821500A (en) * 1973-02-26 1974-06-28 Marc Mfg Inc Floor mat with electrical switch
US4200777A (en) * 1977-04-22 1980-04-29 Miller Norman K Pressure switch
US4249044A (en) * 1979-04-23 1981-02-03 Oak Industries, Inc. Membrane switch with means for preventing contamination of the interior thereof
US4365130A (en) * 1979-10-04 1982-12-21 North American Philips Corporation Vented membrane switch with contaminant scavenger
JPS5755017A (en) * 1980-09-18 1982-04-01 Nippon Mektron Kk Panel keyboard
US4484043A (en) * 1982-09-30 1984-11-20 Bed-Check Corporation Switch apparatus responsive to pressure or distortion
US4484038A (en) * 1982-12-01 1984-11-20 Dorman-Bogdonoff Corp. Membrane touch panel having improved conductor construction

Also Published As

Publication number Publication date
SE512477C2 (en) 2000-03-20
SE8900615D0 (en) 1989-02-22
WO1990010204A1 (en) 1990-09-07

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Legal Events

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