BR8006147A - Processo e dispositivo para o processamento de sinais de faixa larga de grande dinamica - Google Patents

Processo e dispositivo para o processamento de sinais de faixa larga de grande dinamica

Info

Publication number
BR8006147A
BR8006147A BR8006147A BR8006147A BR8006147A BR 8006147 A BR8006147 A BR 8006147A BR 8006147 A BR8006147 A BR 8006147A BR 8006147 A BR8006147 A BR 8006147A BR 8006147 A BR8006147 A BR 8006147A
Authority
BR
Brazil
Prior art keywords
processing
large band
band dimensions
dimensions
band
Prior art date
Application number
BR8006147A
Other languages
English (en)
Inventor
R Lang
J Quittkat
M Dolag
Original Assignee
Nukem Gmbh Edotronik
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 Nukem Gmbh Edotronik filed Critical Nukem Gmbh Edotronik
Publication of BR8006147A publication Critical patent/BR8006147A/pt

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)
BR8006147A 1979-09-29 1980-09-25 Processo e dispositivo para o processamento de sinais de faixa larga de grande dinamica BR8006147A (pt)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BR8006147A true BR8006147A (pt) 1981-04-07

Family

ID=6082288

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8006147A BR8006147A (pt) 1979-09-29 1980-09-25 Processo e dispositivo para o processamento de sinais de faixa larga de grande dinamica

Country Status (7)

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

Families Citing this family (7)

* 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
DE3625618A1 (de) * 1985-11-02 1988-02-11 Deutsche Forsch Luft Raumfahrt Verfahren zur digitalen spitzenwertmessung fuer ultraschallpruefimpulse
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
DE2623892B2 (de) * 1976-05-28 1980-05-14 Karl Deutsch Pruef- Und Messgeraetebau, 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

Also Published As

Publication number Publication date
DE2939617C2 (de) 1986-02-06
DE2939617A1 (de) 1981-04-16
IT1129268B (it) 1986-06-04
FR2466912B1 (pt) 1984-01-06
FR2466912A1 (fr) 1981-04-10
JPS5651660A (en) 1981-05-09
IT8068464A0 (it) 1980-09-22
CA1161542A (en) 1984-01-31
SE449930B (sv) 1987-05-25
SE8006758L (sv) 1981-03-30

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