DK378779A - Fremgangsmaade og apparat til omsaetning af analoge ultralydekkosignaler til digital form - Google Patents

Fremgangsmaade og apparat til omsaetning af analoge ultralydekkosignaler til digital form

Info

Publication number
DK378779A
DK378779A DK378779A DK378779A DK378779A DK 378779 A DK378779 A DK 378779A DK 378779 A DK378779 A DK 378779A DK 378779 A DK378779 A DK 378779A DK 378779 A DK378779 A DK 378779A
Authority
DK
Denmark
Prior art keywords
analogue
reversing
procedure
digital form
analogue digital
Prior art date
Application number
DK378779A
Other languages
English (en)
Inventor
P Renzel
Original Assignee
Krautkraemer Gmbh
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 Krautkraemer Gmbh filed Critical Krautkraemer Gmbh
Publication of DK378779A publication Critical patent/DK378779A/da

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
    • G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/38—Detecting the response signal, e.g. electronic circuits specially adapted therefor by time filtering, e.g. using time gates
    • 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
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02854—Length, thickness

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
DK378779A 1978-09-12 1979-09-11 Fremgangsmaade og apparat til omsaetning af analoge ultralydekkosignaler til digital form DK378779A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/941,378 US4210904A (en) 1978-09-12 1978-09-12 Method and apparatus for converting analog ultrasonic echo signals into digital form

Publications (1)

Publication Number Publication Date
DK378779A true DK378779A (da) 1980-03-13

Family

ID=25476371

Family Applications (1)

Application Number Title Priority Date Filing Date
DK378779A DK378779A (da) 1978-09-12 1979-09-11 Fremgangsmaade og apparat til omsaetning af analoge ultralydekkosignaler til digital form

Country Status (8)

Country Link
US (1) US4210904A (da)
JP (1) JPS5555250A (da)
CA (1) CA1129067A (da)
DE (1) DE2933070C2 (da)
DK (1) DK378779A (da)
FR (1) FR2436393A1 (da)
GB (1) GB2032209B (da)
IT (1) IT7950217A0 (da)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297680A (en) * 1979-08-03 1981-10-27 John Fluke Mfg. Co., Inc. Analog waveform digitizer
US4685614A (en) * 1980-05-27 1987-08-11 Honeywell, Inc. Analog to digital conversion employing the system clock of a microprocessor, the clock frequency varying with analog input
DE3108545C2 (de) * 1981-03-06 1987-03-26 Krautkrämer, GmbH, 5000 Köln Schaltungsvorrichtung zur Digitalisierung und Speicherung der Maximalwerte elektrischer Ultraschall-Impulse
DE3213267A1 (de) * 1982-04-08 1983-10-20 Nukem Gmbh, 6450 Hanau Verfahren und vorrichtung zur pruefung von werkstoffen nach dem wirbelstromprinzip
DE3231001A1 (de) * 1982-08-20 1984-03-15 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur feststellung der dicke des knets eines werkstoffs vor einem paar von walzen
DE3248114C2 (de) * 1982-12-24 1987-04-30 Krautkrämer GmbH, 5040 Brühl Verfahren und Vorrichtung zur Digitalisierung und Speicherung von Ultraschallinformationen
HU189722B (en) * 1983-06-20 1986-07-28 Nehezipari Mueszaki Egyetem,Hu Method and circuit arrangement for sampling according to the value of signal independent of the frequency range of the signal recorded
FR2556474B1 (fr) * 1983-12-07 1986-09-05 Trt Telecom Radio Electr Dispositif de localisation d'un point de reflexion de signal sur une ligne de transmission
US4836026A (en) * 1984-06-01 1989-06-06 Science Applications International Corporation Ultrasonic imaging system
DE3625618A1 (de) * 1985-11-02 1988-02-11 Deutsche Forsch Luft Raumfahrt Verfahren zur digitalen spitzenwertmessung fuer ultraschallpruefimpulse
DE3538948C1 (en) * 1985-11-02 1987-04-23 Deutsche Forsch Luft Raumfahrt Method for digitally measuring the peak value of ultrasonic test pulses
US4866614A (en) * 1985-12-26 1989-09-12 General Electric Company Ultrasound characterization of 3-dimensional flaws
US5216622A (en) * 1990-04-27 1993-06-01 Sps Technologies, Inc. Ultrasonic drive/sense circuitry for automated fastener tightening
JPH0463060U (da) * 1990-10-12 1992-05-29
DE4040190C2 (de) * 1990-12-15 1994-08-04 Kernforschungsz Karlsruhe Verfahren zur Laufzeitmessung von Ultraschall bei der Impuls-Reflexionsmethode
FR2810404B1 (fr) * 2000-06-16 2002-09-06 Setval Detection de defauts couches sur produits metalliques en controle non destructif par ultrasons
DE10052836A1 (de) * 2000-10-24 2002-05-16 Endress Hauser Gmbh Co Vorrichtung zur Bestimmung und/oder Überwachung einer Prozeßvariablen
US6429799B1 (en) * 2001-07-14 2002-08-06 Agilent Technologies, Inc. Method and apparatus for analog to digital conversion using time-varying reference signal

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2994825A (en) * 1958-07-09 1961-08-01 Hewlett Packard Co Voltage to time-interval converter
US3662380A (en) * 1970-03-02 1972-05-09 Biomation Inc Transient recorder
US3634851A (en) * 1970-03-04 1972-01-11 George P Klein Signal characteristic measuring system of the digital type
FR2154849A5 (da) * 1971-09-28 1973-05-18 Equip Const Electr
US3857052A (en) * 1972-04-28 1974-12-24 Rockwell International Corp Inspection and analysis system
US3914760A (en) * 1972-12-20 1975-10-21 Ibm Accurate and stable encoding with low cost circuit elements
US3909771A (en) * 1973-08-06 1975-09-30 Norman C Pickering Ophthalmic B-scan apparatus
US3981184A (en) * 1975-05-07 1976-09-21 Trw Inc. Ultrasonic diagnostic inspection systems

Also Published As

Publication number Publication date
JPS5555250A (en) 1980-04-23
FR2436393A1 (fr) 1980-04-11
GB2032209A (en) 1980-04-30
DE2933070C2 (de) 1982-06-03
GB2032209B (en) 1983-03-23
US4210904A (en) 1980-07-01
CA1129067A (en) 1982-08-03
IT7950217A0 (it) 1979-09-10
DE2933070A1 (de) 1980-03-20

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