JPS57160059A - Correction of distance/amplitude curve - Google Patents

Correction of distance/amplitude curve

Info

Publication number
JPS57160059A
JPS57160059A JP56045534A JP4553481A JPS57160059A JP S57160059 A JPS57160059 A JP S57160059A JP 56045534 A JP56045534 A JP 56045534A JP 4553481 A JP4553481 A JP 4553481A JP S57160059 A JPS57160059 A JP S57160059A
Authority
JP
Japan
Prior art keywords
route
echo
level
defect
calibration
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.)
Granted
Application number
JP56045534A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0141940B2 (enExample
Inventor
Toshiro Maezono
Akisuke Naruse
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.)
Hitachi Ltd
Hitachi Industry and Control Solutions Co Ltd
Original Assignee
Hitachi Engineering Co Ltd Ibaraki
Hitachi Ltd
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 Hitachi Engineering Co Ltd Ibaraki, Hitachi Ltd filed Critical Hitachi Engineering Co Ltd Ibaraki
Priority to JP56045534A priority Critical patent/JPS57160059A/ja
Publication of JPS57160059A publication Critical patent/JPS57160059A/ja
Publication of JPH0141940B2 publication Critical patent/JPH0141940B2/ja
Granted 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
    • G01N29/4463—Signal correction, e.g. distance amplitude correction [DAC], distance gain size [DGS], noise filtering
    • 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

Landscapes

  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
JP56045534A 1981-03-30 1981-03-30 Correction of distance/amplitude curve Granted JPS57160059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56045534A JPS57160059A (en) 1981-03-30 1981-03-30 Correction of distance/amplitude curve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56045534A JPS57160059A (en) 1981-03-30 1981-03-30 Correction of distance/amplitude curve

Publications (2)

Publication Number Publication Date
JPS57160059A true JPS57160059A (en) 1982-10-02
JPH0141940B2 JPH0141940B2 (enExample) 1989-09-08

Family

ID=12722050

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56045534A Granted JPS57160059A (en) 1981-03-30 1981-03-30 Correction of distance/amplitude curve

Country Status (1)

Country Link
JP (1) JPS57160059A (enExample)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5298582A (en) * 1976-02-14 1977-08-18 Mitsubishi Electric Corp Ultrasonic flaw detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5298582A (en) * 1976-02-14 1977-08-18 Mitsubishi Electric Corp Ultrasonic flaw detector

Also Published As

Publication number Publication date
JPH0141940B2 (enExample) 1989-09-08

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