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1. WO2012069722 - SYSTEM FOR DETECTING AND LOCATING A DISTURBANCE IN A MEDIUM, AND CORRESPONDING METHOD AND COMPUTER PROGRAM

Publication Number WO/2012/069722
Publication Date 31.05.2012
International Application No. PCT/FR2011/052523
International Filing Date 27.10.2011
IPC
G06F 3/043 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input 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
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
043using propagating acoustic waves
G01N 29/04 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
04Analysing solids
H01L 41/09 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
08Piezo-electric or electrostrictive elements
09with electrical input and mechanical output
CPC
G01N 29/346
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
34Generating the ultrasonic, sonic or infrasonic waves ; , e.g. electronic circuits specially adapted therefor
346with amplitude characteristics, e.g. modulated signal
G01S 15/876
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
87Combinations of sonar systems
876Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector
G01S 7/521
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
52of systems according to group G01S15/00
521Constructional features
G06F 3/0436
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input 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
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
043using propagating acoustic waves
0436in which generating transducers and detecting transducers are attached to a single acoustic waves transmission substrate
Applicants
  • COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES [FR]/[FR] (AllExceptUS)
  • NIKOLOVSKI, Jean-Pierre [FR]/[FR] (UsOnly)
Inventors
  • NIKOLOVSKI, Jean-Pierre
Agents
  • BONNET, Michel
Priority Data
105965723.11.2010FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) SYSTEM FOR DETECTING AND LOCATING A DISTURBANCE IN A MEDIUM, AND CORRESPONDING METHOD AND COMPUTER PROGRAM
(FR) SYSTÈME DE DÉTECTION ET DE LOCALISATION D'UNE PERTURBATION D'UN MILIEU, PROCÉDÉ ET PROGRAMME D'ORDINATEUR CORRESPONDANTS
Abstract
(EN)
The invention relates to a system comprising: means (304, 306) for emitting successive acoustic waves in a medium (102); means (308) for receiving successive acoustic waves following propagation in the medium (102), designed to supply a reception signal from the successive acoustic waves received; and means for detecting and locating the disturbance in the medium on the basis of the reception signal. At at least one particular frequency, the phase and/or amplitude spectrum of each acoustic wave has an amplitude, or phase respectively, varying in the medium according to a particular spatial distribution in terms of amplitude, or phase respectively, and the emission means (304, 306) are designed such that the spatial distributions in terms of amplitude, or phase respectively, of successive acoustic waves are different from one another.
(FR)
Le système comporte des moyens d'émission (304, 306) d'ondes acoustiques successives dans le milieu (102), des moyens de réception (308) des ondes acoustiques successives après leur propagation dans le milieu (102), conçus pour fournir un signal de réception à partir des ondes acoustiques successives reçues, et des moyens de détection et de localisation de la perturbation dans le milieu à partir du signal de réception. Les moyens d'émission (304, 306) sont conçus pour que, le spectre d'amplitude et/ou de phase de chaque onde acoustique présentant, à au moins une certaine fréquence, une amplitude, respectivement une phase, variant dans le milieu suivant une certaine répartition spatiale d'amplitude, respectivement de phase, ces répartitions spatiales d'amplitude, respectivement de phase, des ondes acoustiques successives soient différentes entre elles. Figure pour l'abrégé.
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