FR2400201A1 - Automatically operating ultrasonic scanner - uses spectral sweep of probe sensitivities to detect interior discontinuities and responds to range of values - Google Patents

Automatically operating ultrasonic scanner - uses spectral sweep of probe sensitivities to detect interior discontinuities and responds to range of values

Info

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Withdrawn
Application number
FR7724459A
Other languages
French (fr)
Inventor
Jean-Claude Albert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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 Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to FR7724459A priority Critical patent/FR2400201A1/en
Publication of FR2400201A1 publication Critical patent/FR2400201A1/en
Withdrawn legal-status Critical Current

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

Abstract

An ultrasonic scanner and operating procedure are described. Non destructive probing of a medium is performed by propagating ultrasonic waves through the medium and monitoring recurring echoes reflected off interior discontinuities. The detection sensitivity of the probe is modified in a cyclic manner which is discontinuous or stepwise from one cycle to the next. Thus a spectrum of detection sensitivities is scanned so that discontinuities responsive to a wide range of probe sensitivities are detected.
FR7724459A 1977-08-08 1977-08-08 Automatically operating ultrasonic scanner - uses spectral sweep of probe sensitivities to detect interior discontinuities and responds to range of values Withdrawn FR2400201A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7724459A FR2400201A1 (en) 1977-08-08 1977-08-08 Automatically operating ultrasonic scanner - uses spectral sweep of probe sensitivities to detect interior discontinuities and responds to range of values

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7724459A FR2400201A1 (en) 1977-08-08 1977-08-08 Automatically operating ultrasonic scanner - uses spectral sweep of probe sensitivities to detect interior discontinuities and responds to range of values

Publications (1)

Publication Number Publication Date
FR2400201A1 true FR2400201A1 (en) 1979-03-09

Family

ID=9194388

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7724459A Withdrawn FR2400201A1 (en) 1977-08-08 1977-08-08 Automatically operating ultrasonic scanner - uses spectral sweep of probe sensitivities to detect interior discontinuities and responds to range of values

Country Status (1)

Country Link
FR (1) FR2400201A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538155A1 (en) * 1982-12-17 1984-06-22 Fragema Framatome & Cogema METHOD AND DEVICE FOR DETECTING DEFECTIVE FUEL ELEMENTS USING ULTRASONIC ABSORPTION
FR2562265A1 (en) * 1984-03-28 1985-10-04 Aisin Seiki Detector of objects using reflection
FR2579886A1 (en) * 1985-04-05 1986-10-10 Edap Ultrasound echography apparatus allowing the display of the blood flow in a vessel
EP2811316A3 (en) * 2013-06-07 2015-11-25 Robert Bosch Gmbh Device for environment sensor system
CN111912903A (en) * 2020-06-24 2020-11-10 西安理工大学 Self-powered ultrasonic guided wave broken rail real-time detection system and positioning method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538155A1 (en) * 1982-12-17 1984-06-22 Fragema Framatome & Cogema METHOD AND DEVICE FOR DETECTING DEFECTIVE FUEL ELEMENTS USING ULTRASONIC ABSORPTION
EP0115231A1 (en) * 1982-12-17 1984-08-08 Société en nom collectif FRAMATOME et COGEMA dite "FRAGEMA" Method and device for detecting defective fuel elements
FR2562265A1 (en) * 1984-03-28 1985-10-04 Aisin Seiki Detector of objects using reflection
FR2579886A1 (en) * 1985-04-05 1986-10-10 Edap Ultrasound echography apparatus allowing the display of the blood flow in a vessel
EP2811316A3 (en) * 2013-06-07 2015-11-25 Robert Bosch Gmbh Device for environment sensor system
CN111912903A (en) * 2020-06-24 2020-11-10 西安理工大学 Self-powered ultrasonic guided wave broken rail real-time detection system and positioning method

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Legal Events

Date Code Title Description
ST Notification of lapse