CA1161542A - Method and device for processing wide-band signals having a large dynamic range - Google Patents

Method and device for processing wide-band signals having a large dynamic range

Info

Publication number
CA1161542A
CA1161542A CA000361172A CA361172A CA1161542A CA 1161542 A CA1161542 A CA 1161542A CA 000361172 A CA000361172 A CA 000361172A CA 361172 A CA361172 A CA 361172A CA 1161542 A CA1161542 A CA 1161542A
Authority
CA
Canada
Prior art keywords
signals
analog
digital
dynamic range
large dynamic
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
Application number
CA000361172A
Other languages
English (en)
French (fr)
Inventor
Raimund Lang
Jorg Quittkat
Manfred Dolag
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.)
Edotronik & Co KG GmbH
Nukem GmbH
Original Assignee
Edotronik & Co KG GmbH
Nukem 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 Edotronik & Co KG GmbH, Nukem GmbH filed Critical Edotronik & Co KG GmbH
Application granted granted Critical
Publication of CA1161542A publication Critical patent/CA1161542A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/10—Amplitude; Power
    • G01H3/12—Amplitude; Power by electric means
    • 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
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G7/00—Synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H04B1/64—Volume compression or expansion arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Analogue/Digital Conversion (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
CA000361172A 1979-09-29 1980-09-29 Method and device for processing wide-band signals having a large dynamic range Expired CA1161542A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2939617A DE2939617C2 (de) 1979-09-29 1979-09-29 Vorrichtung zur schnellen und verzerrungsfreien Umwandlung der von einem Detektor erzeugten analogen Ultraschallprüfsignale in digitale Signale
DEP2939617.6 1979-09-29

Publications (1)

Publication Number Publication Date
CA1161542A true CA1161542A (en) 1984-01-31

Family

ID=6082288

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000361172A Expired CA1161542A (en) 1979-09-29 1980-09-29 Method and device for processing wide-band signals having a large dynamic range

Country Status (7)

Country Link
JP (1) JPS5651660A (it)
BR (1) BR8006147A (it)
CA (1) CA1161542A (it)
DE (1) DE2939617C2 (it)
FR (1) FR2466912A1 (it)
IT (1) IT1129268B (it)
SE (1) SE449930B (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829824A (en) * 1985-11-02 1989-05-16 Deutsche Forschungs- Und Versuchsanstalt Fur Luft- Und Raumfahrt E.V. Method for digital peak value measurement for ultrasonic test pulses

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57201806A (en) * 1981-06-08 1982-12-10 Aloka Co Ltd Ultrasonic diagnostic device
JPS6123967A (ja) * 1984-07-11 1986-02-01 Kubota Ltd 超音波探傷装置
DE3538948C1 (en) * 1985-11-02 1987-04-23 Deutsche Forsch Luft Raumfahrt Method for digitally measuring the peak value of ultrasonic test pulses
DE3728173A1 (de) * 1987-08-24 1989-03-09 Wellhausen Heinz Logarithmischer signalwandler
JPH0580034A (ja) * 1991-09-19 1993-03-30 Tokimec Inc 超音波探傷装置
DE19926684C2 (de) * 1999-06-11 2003-02-13 Intelligendt Sys & Serv Gmbh Verfahren und Vorrichtung zur logarithmischen Umwandlung eines Eingangssignals

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685046A (en) * 1970-06-02 1972-08-15 Texaco Inc Seismic playback/monitor system
DE2226172C3 (de) * 1972-05-30 1975-12-04 Thyssen Niederrhein Ag Huetten- Und Walzwerke, 4200 Oberhausen Verfahren zur Messung und Auswertung von Ultraschall-Prütimpulsen einer gewählten Impulsfolgefrequenz bei der Ultraschallprüfung von Blechen und ähnlichen Prüflingen nach dem Impuls-Echo-Verfahren
GB1545505A (en) * 1975-09-16 1979-05-10 Ca Minister Nat Defence Excitation and spectral calibration of acoustic emission systems
GB1517533A (en) * 1976-04-01 1978-07-12 Nat Res Dev Stress wave emission analysis systems
DE2623892C3 (de) * 1976-05-28 1988-07-28 Karl Deutsch Prüf- und Meßgerätebau GmbH + Co KG, 5600 Wuppertal Verfahren zum Bewerten von Ultraschall-Signalen in Ultraschall-Prüfgeräten für die zerstörungsfreie Werkstoffprüfung
GB1534366A (en) * 1976-07-23 1978-12-06 Emi Ltd Signal processing arrangements
US4058001A (en) * 1976-08-02 1977-11-15 G. D. Searle & Co. Ultrasound imaging system with improved scan conversion
FR2366546A1 (fr) * 1976-10-01 1978-04-28 Krautkraemer Gmbh Procede et installation pour surveiller les controles aux ultrasons de tubes, tuyaux et barres
US4099416A (en) * 1977-04-25 1978-07-11 Krautkramer-Branson, Incorporated Resolution real-time ultrasonic imaging apparatus
AU517998B2 (en) * 1977-05-06 1981-09-10 Commonwealth Of Australia, The Signal processing system
US4216465A (en) * 1978-03-07 1980-08-05 Hughes Aircraft Company Programmable analog to digital converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829824A (en) * 1985-11-02 1989-05-16 Deutsche Forschungs- Und Versuchsanstalt Fur Luft- Und Raumfahrt E.V. Method for digital peak value measurement for ultrasonic test pulses

Also Published As

Publication number Publication date
FR2466912A1 (fr) 1981-04-10
FR2466912B1 (it) 1984-01-06
DE2939617A1 (de) 1981-04-16
JPS5651660A (en) 1981-05-09
BR8006147A (pt) 1981-04-07
SE449930B (sv) 1987-05-25
IT1129268B (it) 1986-06-04
SE8006758L (sv) 1981-03-30
DE2939617C2 (de) 1986-02-06
IT8068464A0 (it) 1980-09-22

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Legal Events

Date Code Title Description
MKEX Expiry