CA2920406C - Systeme de mise en concordance de pression acoustique active - Google Patents

Systeme de mise en concordance de pression acoustique active Download PDF

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Publication number
CA2920406C
CA2920406C CA2920406A CA2920406A CA2920406C CA 2920406 C CA2920406 C CA 2920406C CA 2920406 A CA2920406 A CA 2920406A CA 2920406 A CA2920406 A CA 2920406A CA 2920406 C CA2920406 C CA 2920406C
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CA
Canada
Prior art keywords
measurements
wave
pressure field
model
determining
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.)
Active
Application number
CA2920406A
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English (en)
Other versions
CA2920406A1 (fr
Inventor
Patrice Masson
Nicolas Quaegebeur
Pierre-Claude OSTIGUY
Nicolas Beaudet
Philippe SARRET
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SOCPRA Sciences et Genie SEC
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SOCPRA Sciences et Genie SEC
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Publication of CA2920406A1 publication Critical patent/CA2920406A1/fr
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Publication of CA2920406C publication Critical patent/CA2920406C/fr
Active legal-status Critical Current
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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/043—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
    • G06F3/0436—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves in which generating transducers and detecting transducers are attached to a single acoustic waves transmission substrate
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • 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
    • G01L1/25—Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons
    • G01L1/255—Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons using acoustic waves, or acoustic emission

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Human Computer Interaction (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

La présente invention concerne un procédé et un appareil permettant de déterminer qu'un champ de pression est appliqué sur une structure. Une pluralité d'ondes acoustiques est générée à l'intérieur de la structure, à l'aide d'au moins un générateur d'ondes et une pluralité de mesures des ondes acoustiques est prise à l'aide d'au moins un capteur d'onde. Un champ de pression, appliqué à une surface de la structure, est déterminé par traitement d'au moins deux des mesures parmi la pluralité de mesures. Le générateur d'ondes et le capteur d'ondes peuvent être des éléments piézoélectriques, qui peuvent agir en alternance en tant que générateur d'ondes et en tant que capteur d'ondes. Le traitement des mesures peut comprendre l'obtention d'une valeur de mesure différentielle et la comparaison de la valeur à un seuil. La détermination du fait que le champ de pression est appliqué peut comprendre le traitement des mesures à l'aide d'un modèle basé sur la propagation d'ondes acoustiques ou sur des résultats d'expérimentations. Ce traitement peut permettre d'obtenir une mise en concordance du champ de pression d'un objet sur la structure.
CA2920406A 2012-08-03 2013-08-01 Systeme de mise en concordance de pression acoustique active Active CA2920406C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261679232P 2012-08-03 2012-08-03
US61/679,232 2012-08-03
PCT/CA2013/000688 WO2014019075A1 (fr) 2012-08-03 2013-08-01 Système de mise en concordance de pression acoustique active

Publications (2)

Publication Number Publication Date
CA2920406A1 CA2920406A1 (fr) 2014-02-06
CA2920406C true CA2920406C (fr) 2020-10-27

Family

ID=50027023

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2920406A Active CA2920406C (fr) 2012-08-03 2013-08-01 Systeme de mise en concordance de pression acoustique active

Country Status (2)

Country Link
CA (1) CA2920406C (fr)
WO (1) WO2014019075A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5456256A (en) * 1993-11-04 1995-10-10 Ultra-Scan Corporation High resolution ultrasonic imaging apparatus and method
EP0985206B1 (fr) * 1996-08-12 2012-03-14 Tyco Electronics Coroporation Capteur tactile acoustique
JP2008538520A (ja) * 2005-04-20 2008-10-30 ヴィーヴォメトリックス インコーポレイテッド ヒト以外の動物の非侵襲的生理学的モニタシステム及び方法
US7903090B2 (en) * 2005-06-10 2011-03-08 Qsi Corporation Force-based input device

Also Published As

Publication number Publication date
WO2014019075A1 (fr) 2014-02-06
CA2920406A1 (fr) 2014-02-06

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Effective date: 20180409