FR2400201A1 - Procede et dispositif de sondage ultrasonore - Google Patents
Procede et dispositif de sondage ultrasonoreInfo
- Publication number
- FR2400201A1 FR2400201A1 FR7724459A FR7724459A FR2400201A1 FR 2400201 A1 FR2400201 A1 FR 2400201A1 FR 7724459 A FR7724459 A FR 7724459A FR 7724459 A FR7724459 A FR 7724459A FR 2400201 A1 FR2400201 A1 FR 2400201A1
- Authority
- FR
- France
- Prior art keywords
- discontinuities
- responds
- values
- probe
- range
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
- G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
- G01S15/102—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves using transmission of pulses having some particular characteristics
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating 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
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
- G01N29/348—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating 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
- G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
- G01N29/40—Detecting the response signal, e.g. electronic circuits specially adapted therefor by amplitude filtering, e.g. by applying a threshold or by gain control
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/523—Details of pulse systems
- G01S7/526—Receivers
- G01S7/529—Gain of receiver varied automatically during pulse-recurrence period
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
L'invention concerne le sondage non destructif par ultrasons par la méthode des échos récurrents. Une au moins des caractéristiques qui déterminent la sensibilité de détection, puissance ou fréquence d'émission, gain des amplificateurs, etc., est modifiée de façon cyclique discontinue d'un cycle de récurrence à un autre, de façon à donner cycliquement à l'ensemble de la chaîne une sensibilité différente, ce qui permet de mettre en évidence et de comparer des échos necessitant des sensibilités de détection différentes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7724459A FR2400201A1 (fr) | 1977-08-08 | 1977-08-08 | Procede et dispositif de sondage ultrasonore |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7724459A FR2400201A1 (fr) | 1977-08-08 | 1977-08-08 | Procede et dispositif de sondage ultrasonore |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2400201A1 true FR2400201A1 (fr) | 1979-03-09 |
Family
ID=9194388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7724459A Withdrawn FR2400201A1 (fr) | 1977-08-08 | 1977-08-08 | Procede et dispositif de sondage ultrasonore |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2400201A1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2538155A1 (fr) * | 1982-12-17 | 1984-06-22 | Fragema Framatome & Cogema | Procede et dispositif de detection d'elements combustibles defectueux utilisant l'absorption ultrasonore |
FR2562265A1 (fr) * | 1984-03-28 | 1985-10-04 | Aisin Seiki | Detecteur d'objets du type a reflexion |
FR2579886A1 (en) * | 1985-04-05 | 1986-10-10 | Edap | Ultrasound echography apparatus allowing the display of the blood flow in a vessel |
EP2811316A3 (fr) * | 2013-06-07 | 2015-11-25 | Robert Bosch Gmbh | Dispositif de capteur d'environnement |
CN111912903A (zh) * | 2020-06-24 | 2020-11-10 | 西安理工大学 | 一种自供能的超声导波断轨实时检测***及定位方法 |
-
1977
- 1977-08-08 FR FR7724459A patent/FR2400201A1/fr not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2538155A1 (fr) * | 1982-12-17 | 1984-06-22 | Fragema Framatome & Cogema | Procede et dispositif de detection d'elements combustibles defectueux utilisant l'absorption ultrasonore |
EP0115231A1 (fr) * | 1982-12-17 | 1984-08-08 | Société en nom collectif FRAMATOME et COGEMA dite "FRAGEMA" | Procédé et dispositif de détection d'éléments combustibles défectueux |
FR2562265A1 (fr) * | 1984-03-28 | 1985-10-04 | Aisin Seiki | Detecteur d'objets du type a reflexion |
FR2579886A1 (en) * | 1985-04-05 | 1986-10-10 | Edap | Ultrasound echography apparatus allowing the display of the blood flow in a vessel |
EP2811316A3 (fr) * | 2013-06-07 | 2015-11-25 | Robert Bosch Gmbh | Dispositif de capteur d'environnement |
CN111912903A (zh) * | 2020-06-24 | 2020-11-10 | 西安理工大学 | 一种自供能的超声导波断轨实时检测***及定位方法 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |