WO2007126716A3 - Multi-zone capacitive force sensing device and method - Google Patents

Multi-zone capacitive force sensing device and method Download PDF

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Publication number
WO2007126716A3
WO2007126716A3 PCT/US2007/007321 US2007007321W WO2007126716A3 WO 2007126716 A3 WO2007126716 A3 WO 2007126716A3 US 2007007321 W US2007007321 W US 2007007321W WO 2007126716 A3 WO2007126716 A3 WO 2007126716A3
Authority
WO
Grant status
Application
Patent type
Prior art keywords
capacitors
conductive surface
multi
method
top plate
Prior art date
Application number
PCT/US2007/007321
Other languages
French (fr)
Other versions
WO2007126716A2 (en )
Inventor
William Dallenback
Divyasimha Harish
John Schultz
King Wong
Original Assignee
William Dallenback
Divyasimha Harish
Loadstar Sensors Inc
John Schultz
King Wong
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

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G7/00—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups
    • G01G7/06—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electrostatic action
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
    • G01G23/37—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
    • G01G23/3728—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
    • G01G23/37—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
    • G01G23/3728—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means
    • G01G23/3735—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means using a digital network
    • 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
    • G01L1/14—Measuring force or stress in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
    • G01L1/142—Measuring force or stress in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors
    • G01L1/146—Measuring force or stress in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors for measuring force distributions, e.g. using force arrays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, e.g. due to impact, work, mechanical power, or torque, adapted for special purposes
    • G01L5/0061—Force sensors associated with industrial machines or actuators
    • G01L5/0076—Force sensors associated with manufacturing machines

Abstract

A multi-zone capacitive force sensing apparatus/method is disclosed. In one embodiment, an apparatus includes one or more capacitors each having an upper conductive surface and a lower conductive surface substantially parallel to the upper conductive surface, a housing with a top plate and a bottom plate to encompass the capacitors, and a sensor in the housing to generate a measurement based on a change in a distance between the upper conductive surface and the lower conductive surface of each of the capacitors when a contact zone of the top plate associated with the each of the plurality of capacitors is deflected by a force applied on the contact zone. The apparatus may also include a comparison module associated with the sensor to generate a signal indicating unevenness of a force applied on the top plate when there is any significant difference between measurements of the capacitors.
PCT/US2007/007321 2006-04-03 2007-03-23 Multi-zone capacitive force sensing device and method WO2007126716A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US11/397,507 2006-04-03
US11397507 US7343814B2 (en) 2006-04-03 2006-04-03 Multi-zone capacitive force sensing device and methods

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CA 2648524 CA2648524A1 (en) 2006-04-03 2007-03-23 Multi-zone capacitive force sensing device and method
CN 200780011717 CN101416021B (en) 2006-04-03 2007-03-23 Multi-zone capacitive force sensing device and method
JP2009504201A JP2009532699A (en) 2006-04-03 2007-03-23 Multi-zone capacitive force detection apparatus and method
EP20070753909 EP2002199A4 (en) 2006-04-03 2007-03-23 Multi-zone capacitive force sensing device and method

Publications (2)

Publication Number Publication Date
WO2007126716A2 true WO2007126716A2 (en) 2007-11-08
WO2007126716A3 true true WO2007126716A3 (en) 2008-06-05

Family

ID=38556908

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/007321 WO2007126716A3 (en) 2006-04-03 2007-03-23 Multi-zone capacitive force sensing device and method

Country Status (7)

Country Link
US (1) US7343814B2 (en)
EP (1) EP2002199A4 (en)
JP (1) JP2009532699A (en)
KR (1) KR20090019779A (en)
CN (1) CN101416021B (en)
CA (1) CA2648524A1 (en)
WO (1) WO2007126716A3 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7644628B2 (en) * 2005-12-16 2010-01-12 Loadstar Sensors, Inc. Resistive force sensing device and method with an advanced communication interface
US20090120198A1 (en) * 2005-09-28 2009-05-14 Dallenbach William D Gap-change sensing through capacitive techniques
US20060267321A1 (en) * 2005-05-27 2006-11-30 Loadstar Sensors, Inc. On-board vehicle seat capacitive force sensing device and method
WO2007133675A3 (en) * 2006-05-11 2008-10-30 Divyasimha Harish Capacitive force-measuring device based load sensing platform
US7743667B2 (en) * 2007-02-12 2010-06-29 Loadstar Sensors, Inc. Capacitive device and method with an enhanced measurement error correction capability
CN101868705A (en) * 2007-10-16 2010-10-20 西门子公司 Eccentric load compensated load cell
JP5061878B2 (en) * 2007-12-13 2012-10-31 ヤマハ株式会社 Pressure sensor and data input device
US8096196B2 (en) * 2007-12-14 2012-01-17 Siemens Ag Load cell
US20090158856A1 (en) * 2007-12-23 2009-06-25 Divyasimha Harish Capacitive strain gauge system and method
US9222845B2 (en) 2009-08-21 2015-12-29 Regents Of The University Of Minnesota Flexible sensors and related systems for determining forces applied to an object, such as a surgical instrument, and methods for manufacturing same
CN101957168A (en) * 2010-09-26 2011-01-26 苏州瀚瑞微电子有限公司 Method for detecting deformation quantity of object through capacitance
US20140054096A1 (en) * 2010-10-12 2014-02-27 David Carruthers Apparatus capable of measuring load and load movement
JP5149416B2 (en) * 2011-04-06 2013-02-20 ファナック株式会社 Robot system and control method thereof abnormality detection function of the robot
GB201111340D0 (en) * 2011-07-04 2011-08-17 Meso Ltd Load measuring system
CN102967394A (en) * 2012-09-15 2013-03-13 华东光电集成器件研究所 Symmetrical capacitor pressure sensor and manufacture method thereof
US9638654B2 (en) 2013-11-25 2017-05-02 Oil States Industries, Inc. Method and system for health monitoring of composite elastomeric flexible elements
ES2552566B1 (en) * 2014-05-29 2016-09-08 Juan Manuel OJEDA PÉREZ Handcart adapted for collecting and weighing electronic balance berries

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150759A (en) * 1990-10-29 1992-09-29 Borchard John S Capacitor-sensor
US6087926A (en) * 1998-06-12 2000-07-11 Hajianpour; Mohammed A. Foot pressure monitor
US20060065973A1 (en) * 2004-09-29 2006-03-30 Loadstar Sensors, Inc. Gap-change sensing through capacitive techniques

Family Cites Families (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336525A (en) 1963-01-08 1967-08-15 Kaman Aircraft Corp Variable impedance displacement transducer
DK134455C (en) 1969-04-21 1978-04-24 Nils Aage Juul Eilersen Capacity measurement circuit.
US3698249A (en) 1970-08-03 1972-10-17 Umc Electronics Co Fluid pressure monitoring system
DE2039724B (en) 1970-08-10 1972-03-09 Siemens Ag Amplitude-controlled oscillator
JPS5315262B2 (en) * 1972-04-19 1978-05-23
US3880008A (en) 1973-04-02 1975-04-29 Nils Aage Juul Eilersen Arrangement for occasionally determining the pressure in a hydraulic or pneumatic system
US3859575B1 (en) 1974-02-11 1988-05-03
US4093915A (en) 1976-01-12 1978-06-06 Setra Systems, Inc. Capacitance measuring system
US4084438A (en) 1976-03-29 1978-04-18 Setra Systems, Inc. Capacitive pressure sensing device
US4042876A (en) 1976-04-29 1977-08-16 The United States Of America As Represented By The United States Energy Research And Development Administration Eddy current gauge for monitoring displacement using printed circuit coil
US4054833A (en) 1976-06-11 1977-10-18 Setra Systems, Inc. Capacitance measuring system
DK139644C (en) 1976-12-30 1979-09-03 N Aa J Eilersen
JPS54131976A (en) * 1978-04-03 1979-10-13 Fuji Electric Co Ltd Load measuring apparatus
US4229776A (en) 1978-11-21 1980-10-21 Vaisala Oy Capacitive capsule for aneroid pressure gauge
US4227418A (en) 1979-09-24 1980-10-14 Fischer & Porter Company Capacitive pressure transducer
US4434451A (en) 1979-10-29 1984-02-28 Delatorre Leroy C Pressure sensors
JPS56114404A (en) 1980-02-14 1981-09-09 Sony Corp Oscillator
US4358814A (en) 1980-10-27 1982-11-09 Setra Systems, Inc. Capacitive pressure sensor
US4434203A (en) 1980-10-27 1984-02-28 Setra Systems, Inc. Diaphragm
US4386312A (en) 1981-04-24 1983-05-31 Setra Systems, Inc. Linear capacitive sensor system
US4899600A (en) 1981-05-19 1990-02-13 Setra Systems, Inc. Compact force transducer with mechanical motion amplification
US4433742A (en) 1981-05-19 1984-02-28 Setra Systems, Inc. Linear motion linkage
US4448085A (en) 1981-05-19 1984-05-15 Setra Systems, Inc. Force transducer
US4463614A (en) 1981-05-19 1984-08-07 Setra Systems, Inc. Force transducer
US4513831A (en) 1981-05-19 1985-04-30 Setra Systems, Inc. Weighing system
US4383586A (en) 1981-05-19 1983-05-17 Setra Systems, Inc. Adjustable linkage
US4382479A (en) 1981-05-19 1983-05-10 Setra Systems, Inc. Weighing system
US4649759A (en) * 1981-05-19 1987-03-17 Setra Systems, Inc. Force transducer
US4464725A (en) 1981-05-19 1984-08-07 Setra Systems, Inc. Temperature compensated measuring system
US4558600A (en) 1982-03-18 1985-12-17 Setra Systems, Inc. Force transducer
EP0074574A1 (en) 1981-09-14 1983-03-23 The Perkin-Elmer Corporation Flow-through fluid pressure transducer
JPS5922404A (en) 1982-07-28 1984-02-04 Hitachi Denshi Ltd Voltage controlled oscillator
DK4383D0 (en) 1983-01-07 1983-01-07 Nils Age Juul Eilersen oscillator circuit
JPS6177733A (en) 1984-09-25 1986-04-21 Nec Corp Pressure measuring device
US4603308A (en) 1985-06-24 1986-07-29 Setra Systems, Inc. Temperature stable oscillator
DE3718292A1 (en) 1987-05-30 1987-10-22 Harald Helpert Colpitts-type crystal oscillator with wide pulling range
JPH0553151B2 (en) 1988-03-30 1993-08-09 Nikkiso Co Ltd
DK172663B1 (en) 1988-04-25 1999-05-03 Jens Juul Eilersen Furniture with rygstøtteanordning
US4949054A (en) 1988-08-24 1990-08-14 Setra Systems, Inc. Temperature stable oscillator
US4846293A (en) 1988-10-12 1989-07-11 Setra Systems, Inc. Humidity control system for a scale
US4961055A (en) * 1989-01-04 1990-10-02 Vickers, Incorporated Linear capacitance displacement transducer
DE3910297C2 (en) 1989-03-30 1991-04-18 Micro-Epsilon Messtechnik Gmbh & Co Kg, 8359 Ortenburg, De
DK162015C (en) 1989-08-10 1992-02-17 Jens Juul Eilersen Furniture
US5024099A (en) 1989-11-20 1991-06-18 Setra Systems, Inc. Pressure transducer with flow-through measurement capability
US5115676A (en) 1990-01-10 1992-05-26 Setra Systems, Inc. Flush-mounted pressure sensor
US5078220A (en) 1990-08-10 1992-01-07 Setra Systems, Inc. Multiple sensor capacitive measurement system
US5194819A (en) 1990-08-10 1993-03-16 Setra Systems, Inc. Linearized capacitance sensor system
US6314823B1 (en) * 1991-09-20 2001-11-13 Kazuhiro Okada Force detector and acceleration detector and method of manufacturing the same
US5150275A (en) 1991-07-01 1992-09-22 Setra Systems, Inc. Capacitive pressure sensor
US5442962A (en) 1993-08-20 1995-08-22 Setra Systems, Inc. Capacitive pressure sensor having a pedestal supported electrode
DE4330808C5 (en) 1993-09-10 2012-08-30 Klaus Nordmann Apparatus for measuring the processing power of tools
US5542300A (en) 1994-01-24 1996-08-06 Setra Systems, Inc. Low cost, center-mounted capacitive pressure sensor
DE4420691C1 (en) 1994-06-14 1996-01-18 Bizerba Gmbh & Co Kg Force measurement cell esp. for use in weighing balances
US5604315A (en) 1995-01-12 1997-02-18 Setra Systems, Inc. Apparatus using a feedback network to measure fluid pressures
US5705751A (en) 1995-06-07 1998-01-06 Setra Systems, Inc. Magnetic diaphragm pressure transducer with magnetic field shield
JPH10246647A (en) * 1997-03-04 1998-09-14 Fuji Electric Co Ltd Electrostatic capacitance type sensor
US6019002A (en) 1997-12-02 2000-02-01 Setra Systems, Inc. Pressure transducer having a tensioned diaphragm
US5939639A (en) 1997-12-04 1999-08-17 Setra Systems, Inc. Pressure transducer housing with barometric pressure isolation
FI105237B (en) * 1998-06-24 2000-06-30 Valtion Teknillinen Silicon-micromechanical horizontal
EP0967468A1 (en) * 1998-06-26 1999-12-29 Bossard AG Capacitive force sensor
US6316948B1 (en) 1998-07-01 2001-11-13 Setra Systems, Inc. Charge balance network with floating ground capacitive sensing
US6191722B1 (en) 1999-01-14 2001-02-20 Setra Systems, Inc. Pulse width modulation digital to analog converter
US6205861B1 (en) 1999-01-22 2001-03-27 Setra Systems, Inc. Transducer having temperature compensation
JP2000292270A (en) * 1999-04-09 2000-10-20 Furukawa Electric Co Ltd:The Capacitance-type load sensor
US6180892B1 (en) 1999-06-22 2001-01-30 Setra Systems, Inc. Mixing scale
US6532834B1 (en) 1999-08-06 2003-03-18 Setra Systems, Inc. Capacitive pressure sensor having encapsulated resonating components
US6789429B2 (en) 1999-08-06 2004-09-14 Setra System, Inc. Capacitive pressure sensor having encapsulated resonating components
US6257068B1 (en) 1999-11-15 2001-07-10 Setra Systems, Inc. Capacitive pressure sensor having petal electrodes
EP1117052A1 (en) 2000-01-17 2001-07-18 Anders Juul Eilersen Method for providing a transfer of retail goods or retail units
US6496019B1 (en) 2000-08-18 2002-12-17 Setra Systems, Inc. Temperature compensated pressure sensor network
US6989677B2 (en) * 2000-11-30 2006-01-24 Nitta Corporation Capacitance type sensor
EP1386173B1 (en) 2001-03-16 2004-10-27 EILERSEN, Nils Age Juul Capacitance measuring circuit
US20050066742A1 (en) 2001-03-27 2005-03-31 Eilersen Nils Aage Juul Capacitive dynamometer
JP2003035614A (en) * 2001-07-23 2003-02-07 Omron Corp Pressure-sensitive sensor and method for manufacturing the same
US6809529B2 (en) * 2001-08-10 2004-10-26 Wacoh Corporation Force detector
JP2003329444A (en) * 2002-03-07 2003-11-19 Alps Electric Co Ltd Capacitance type sensor
US7100432B2 (en) * 2002-06-06 2006-09-05 Mineral Lassen Llc Capacitive pressure sensor
US6718827B1 (en) 2002-11-15 2004-04-13 Setray Systems, Inc. Center-mount capacitive sensor with overload protection
US7047818B2 (en) * 2003-04-09 2006-05-23 Loadstar Sensors, Inc. Capacitive force sensing device
US7353713B2 (en) * 2003-04-09 2008-04-08 Loadstar Sensors, Inc. Flexible apparatus and method to enhance capacitive force sensing
US7187185B2 (en) * 2004-09-29 2007-03-06 Loadstar Sensors Inc Area-change sensing through capacitive techniques
US20060267321A1 (en) * 2005-05-27 2006-11-30 Loadstar Sensors, Inc. On-board vehicle seat capacitive force sensing device and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150759A (en) * 1990-10-29 1992-09-29 Borchard John S Capacitor-sensor
US6087926A (en) * 1998-06-12 2000-07-11 Hajianpour; Mohammed A. Foot pressure monitor
US20060065973A1 (en) * 2004-09-29 2006-03-30 Loadstar Sensors, Inc. Gap-change sensing through capacitive techniques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2002199A2 *

Also Published As

Publication number Publication date Type
WO2007126716A2 (en) 2007-11-08 application
EP2002199A2 (en) 2008-12-17 application
CN101416021B (en) 2011-06-15 grant
EP2002199A4 (en) 2010-09-08 application
KR20090019779A (en) 2009-02-25 application
US20070227257A1 (en) 2007-10-04 application
CA2648524A1 (en) 2007-11-08 application
CN101416021A (en) 2009-04-22 application
JP2009532699A (en) 2009-09-10 application
US7343814B2 (en) 2008-03-18 grant

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