DE69021908T2 - Apparat zur Detektion. - Google Patents

Apparat zur Detektion.

Info

Publication number
DE69021908T2
DE69021908T2 DE69021908T DE69021908T DE69021908T2 DE 69021908 T2 DE69021908 T2 DE 69021908T2 DE 69021908 T DE69021908 T DE 69021908T DE 69021908 T DE69021908 T DE 69021908T DE 69021908 T2 DE69021908 T2 DE 69021908T2
Authority
DE
Germany
Prior art keywords
detection apparatus
detection
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.)
Expired - Lifetime
Application number
DE69021908T
Other languages
English (en)
Other versions
DE69021908D1 (de
Inventor
Shusou Wadaka
Koichiro Misu
Tsutomu Nagatsuka
Mitsuhiro Koike
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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
Priority claimed from JP1045316A external-priority patent/JPH0781992B2/ja
Priority claimed from JP1086383A external-priority patent/JPH0781993B2/ja
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of DE69021908D1 publication Critical patent/DE69021908D1/de
Application granted granted Critical
Publication of DE69021908T2 publication Critical patent/DE69021908T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/50—Processing the detected response signal, e.g. electronic circuits specially adapted therefor using auto-correlation techniques or cross-correlation techniques
    • 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
    • G01N29/04—Analysing solids
    • G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0609—Display arrangements, e.g. colour displays
    • 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
    • G01N29/04—Analysing solids
    • G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
    • 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
    • G01N29/04—Analysing solids
    • G01N29/11—Analysing solids by measuring attenuation of acoustic waves
    • 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
    • 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
    • G01N29/341—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with time characteristics
    • G01N29/343—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with time characteristics pulse waves, e.g. particular sequence of pulses, bursts
    • 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
    • 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
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4409—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison
    • G01N29/4436—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison with a reference signal
    • 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
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4445—Classification of defects
    • 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
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S367/00—Communications, electrical: acoustic wave systems and devices
    • Y10S367/905—Side lobe reduction or shading
DE69021908T 1989-02-28 1990-02-28 Apparat zur Detektion. Expired - Lifetime DE69021908T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1045316A JPH0781992B2 (ja) 1989-02-28 1989-02-28 超音波測定装置
JP1086383A JPH0781993B2 (ja) 1989-04-05 1989-04-05 超音波測定装置
JP20390989 1989-08-08

Publications (2)

Publication Number Publication Date
DE69021908D1 DE69021908D1 (de) 1995-10-05
DE69021908T2 true DE69021908T2 (de) 1996-06-13

Family

ID=27292183

Family Applications (3)

Application Number Title Priority Date Filing Date
DE69021908T Expired - Lifetime DE69021908T2 (de) 1989-02-28 1990-02-28 Apparat zur Detektion.
DE69033202T Expired - Lifetime DE69033202T2 (de) 1989-02-28 1990-02-28 Detektionsgerät
DE69033144T Expired - Lifetime DE69033144T2 (de) 1989-02-28 1990-02-28 Detektionsgerät

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE69033202T Expired - Lifetime DE69033202T2 (de) 1989-02-28 1990-02-28 Detektionsgerät
DE69033144T Expired - Lifetime DE69033144T2 (de) 1989-02-28 1990-02-28 Detektionsgerät

Country Status (3)

Country Link
US (3) US5203823A (de)
EP (3) EP0385420B1 (de)
DE (3) DE69021908T2 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0456028B1 (de) * 1990-04-27 1994-12-28 Mitsubishi Denki Kabushiki Kaisha Aufsichtsvorrichtung
US5549111A (en) * 1994-08-05 1996-08-27 Acuson Corporation Method and apparatus for adjustable frequency scanning in ultrasound imaging
DE19780348D2 (de) 1996-04-18 2000-01-05 Ramseier Hans Ulrich Charakterisierung von Objekten mittels Ultraschall
US6175848B1 (en) * 1996-11-21 2001-01-16 Trimble Navigation Limited Variable accumulation correlators
US5984869A (en) * 1998-04-20 1999-11-16 General Electric Company Method and apparatus for ultrasonic beamforming using golay-coded excitation
GB2339021A (en) * 1998-06-30 2000-01-12 Subacoustech Limited Distance measuring systems and aircraft altimeters
US6307622B1 (en) 1999-02-17 2001-10-23 Infineon Technologies North America Corp. Correlation based optical ranging and proximity detector
AUPR450801A0 (en) * 2001-04-20 2001-05-24 Commonwealth Scientific And Industrial Research Organisation Method and apparatus for carrying out non-destructive testing of materials
CA2346160A1 (en) * 2001-05-02 2002-11-02 Mohamed Cheriet Method and system for measuring the energy of a signal
US6763142B2 (en) * 2001-09-07 2004-07-13 Nline Corporation System and method for correlated noise removal in complex imaging systems
SE520466C2 (sv) * 2001-11-12 2003-07-15 Ericsson Telefon Ab L M Metod och anordning vid en digital linjäriseringskoppling
US6732587B2 (en) 2002-02-06 2004-05-11 Lockheed Martin Corporation System and method for classification of defects in a manufactured object
US6909668B2 (en) 2002-09-16 2005-06-21 Hubbell Incorporated Ultrasonic displacement sensor using envelope detection
US7027355B2 (en) 2003-01-08 2006-04-11 Hubbell Incorporated Ultrasonic displacement sensor using digital signal processing detection
US6745632B1 (en) * 2003-06-03 2004-06-08 Joseph Ernest Dryer Method for measuring ultrasonic transit times
DE102004051020A1 (de) * 2004-10-20 2006-05-04 Sms Demag Ag Verfahren, Vorrichtung und Schaltung zum Ermitteln von Oberflächenfehlern, wie beispielsweise Risse, Ausbrüche und dergleichen an einer Walze eines Walzwerks
EP1705825A1 (de) * 2005-03-23 2006-09-27 Dr. Reinhart Rudershausen Binärer Code-Adaptivfilter für Sende-Empfangsgeräte
WO2006103183A1 (de) * 2005-03-31 2006-10-05 Siemens Aktiengesellschaft Verfahren zur akustischen untersuchung eines messobjektes sowie entsprechende anordnung zur durchführung des verfahrens
GB0723622D0 (en) * 2007-12-04 2008-01-09 Univ Exeter The Devices, systems and methods of detecting defects in workpieces
CA2718476C (en) 2008-03-14 2016-11-15 Cidra Corporate Services, Inc. Flow and pipe management using velocity profile measurement and/or pipe wall thickness and wear monitoring
JP5074299B2 (ja) * 2008-06-06 2012-11-14 古野電気株式会社 水中探知装置
EP2406624A4 (de) * 2009-03-13 2017-12-06 Eugene B. Silverman Drahtloser sensor, datenverwaltungssystem sowie verfahren zur überwachung der integrität mechanischer strukturen
DE102015100066A1 (de) * 2015-01-06 2016-07-07 Rosen Swiss Ag Verfahren zur Bestimmung des Zustands von Elastomer- oder anderen Beschichtungen eines zumindest einseitig beschichteten metallischen Gegenstands
WO2018146564A1 (en) * 2017-02-10 2018-08-16 Gil Zwirn Acquiring information regarding a volume using wireless networks
CN112986388B (zh) * 2021-05-20 2021-08-17 北京全路通信信号研究设计院集团有限公司 一种基于宽频激励的道岔尖轨缺陷检测方法及系统

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907400A (en) * 1954-05-12 1959-10-06 Geotechnical Corp Correlation of seismic signals
US3518415A (en) * 1965-12-27 1970-06-30 Itt Impulse correlation function generator
US4245326A (en) * 1967-08-29 1981-01-13 International Telephone And Telegraph Corporation Impulse autocorrelation function code generator
US3882444A (en) * 1971-06-18 1975-05-06 Automation Ind Inc Steerable parametric conversion array
US3968471A (en) * 1972-01-17 1976-07-06 Western Geophysical Company Of America Method for suppressing side lobes in correlation processes
SE395773B (sv) * 1975-11-24 1977-08-22 Ericsson Telefon Ab L M Forfarande att i mottagare i en radaranleggning eliminera avstandssidolober vid kompression av en pa sendarsidan diskret fasmodulerad radarpuls
FR2374651A1 (fr) * 1976-12-16 1978-07-13 Labo Cent Telecommunicat Dispositif d'elimination des lobes secondaires d'auto-correlation d'un signal continu periodique code en phase
US4167879A (en) * 1978-06-06 1979-09-18 Panametrics, Inc. Method and apparatus for examining a solid
US4224679A (en) * 1978-10-16 1980-09-23 Rca Corporation Signal correlation means
US4267580A (en) * 1979-01-08 1981-05-12 The United States Of America As Represented By The Secretary Of The Navy CCD Analog and digital correlators
US4442715A (en) * 1980-10-23 1984-04-17 General Electric Company Variable frequency ultrasonic system
US4428237A (en) * 1980-11-13 1984-01-31 Electric Power Research Institute, Inc. System and method for measuring ultrasonic return signals
US4471785A (en) * 1982-09-29 1984-09-18 Sri International Ultrasonic imaging system with correction for velocity inhomogeneity and multipath interference using an ultrasonic imaging array
US4542653A (en) * 1983-11-21 1985-09-24 Advanced Technology Laboratories, Inc. Apparatus and method for beamforming in an ultrasonic transducer array
JPH0781995B2 (ja) * 1989-10-25 1995-09-06 三菱電機株式会社 超音波探触子および超音波探傷装置
US5043951A (en) * 1990-08-01 1991-08-27 Westinghouse Electric Corp. Apparatus for reduction of side lobes in a beam pattern of an array

Also Published As

Publication number Publication date
US5203823A (en) 1993-04-20
EP0385420A2 (de) 1990-09-05
DE69033144T2 (de) 1999-12-23
DE69021908D1 (de) 1995-10-05
EP0574963B1 (de) 1999-06-02
EP0574964A2 (de) 1993-12-22
EP0574963A2 (de) 1993-12-22
DE69033202T2 (de) 1999-12-30
EP0385420A3 (de) 1991-02-27
DE69033202D1 (de) 1999-08-12
DE69033144D1 (de) 1999-07-08
EP0574964A3 (en) 1994-07-20
US5417114A (en) 1995-05-23
US5415045A (en) 1995-05-16
EP0385420B1 (de) 1995-08-30
EP0574964B1 (de) 1999-07-07
EP0574963A3 (en) 1994-07-20

Similar Documents

Publication Publication Date Title
DE69021908D1 (de) Apparat zur Detektion.
FI905832A0 (fi) Anordning.
DE3789875T2 (de) Metrologischer Apparat.
DE69020798T2 (de) Apparat zur Detektion des Zustandes der Speisung.
DE68904164D1 (de) Apparat zur durchfuehrung einer verlaengerten angioplastie.
DE69119526D1 (de) Apparat zur Detektion der Verschiebung
DE3853014T2 (de) Apparat zur Prüfung von Einkäufen.
DE69005509T2 (de) Apparat zur Herstellung von Würsten.
DE69017610D1 (de) Bilderzeugungsverfahren und -gerät.
DE69006632T2 (de) Apparat zur Herstellung von Würsten.
DE3686100D1 (de) Apparat zur pruefung von objekten.
DE69124853T2 (de) Vorrichtung zur Detektion von Unterschieden zwischen Bewegtbildern
FI913056A0 (fi) Apparat foer osteosyntes.
NO904893D0 (no) Apparat og fremgangsmaate for monitorering.
DE69020985T2 (de) Apparat zur Trennung von Lösungen.
DE69010520D1 (de) Bilderzeugungsapparat.
DE69011144D1 (de) Opthalmologischer Apparat.
DE69017525T2 (de) Registrierapparatur.
FI921592A0 (fi) Apparat foer stabilisering av vaog- laengden i en signalmodulerad ljusstraole.
NO873914D0 (no) Apparat for aa hindre kondensasjon.
FI921350A0 (fi) Apparat foer bestaemning av torknings- tiden hos pappersmassa.
DE3885755T2 (de) Apparat zur Feststellung der Windscherung.
DE69011949T2 (de) Apparat zur Bearbeitung von Kontobüchern.
DE69032093D1 (de) Apparat zur Dokumentenverarbeitung
FI895177A0 (fi) Anordning och apparat foer koordinering av flera telefoncentraler.

Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition