JPH0141940B2 - - Google Patents

Info

Publication number
JPH0141940B2
JPH0141940B2 JP56045534A JP4553481A JPH0141940B2 JP H0141940 B2 JPH0141940 B2 JP H0141940B2 JP 56045534 A JP56045534 A JP 56045534A JP 4553481 A JP4553481 A JP 4553481A JP H0141940 B2 JPH0141940 B2 JP H0141940B2
Authority
JP
Japan
Prior art keywords
correction
data
flaw detection
distance
amplitude correction
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
JP56045534A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57160059A (en
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
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, Hitachi Ltd filed Critical Hitachi Engineering Co Ltd
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

  • 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)
  • Engineering & Computer Science (AREA)
  • Signal Processing (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 JPS57160059A (en) 1982-10-02
JPH0141940B2 true JPH0141940B2 (enrdf_load_stackoverflow) 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 (enrdf_load_stackoverflow)

Family Cites Families (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
JPS57160059A (en) 1982-10-02

Similar Documents

Publication Publication Date Title
US4847794A (en) Error compensation method for transducers having non-linear characteristics, and an assembly for carrying out said method
US4099240A (en) Method and apparatus for programmable and remote numeric control and calibration of electronic instrumentation
US4513621A (en) Ultrasonic test instrument with controllable amplifier
JPH0141940B2 (enrdf_load_stackoverflow)
JPS6246178B2 (enrdf_load_stackoverflow)
JPH0666623B2 (ja) 対数増幅器用校正器及び校正方法
US4364114A (en) Method and apparatus for determining the acoustic velocity of a workpiece
KR960019094A (ko) 다기능 측정기
JPS582651A (ja) 距離振幅補正装置
GB2132058A (en) Waveform display apparatus
USRE30443E (en) Real-time ultrasonic imaging apparatus
JPS5888651A (ja) 距離振幅補正装置
JPH09184871A (ja) 半導体テストシステムの自動校正装置
JPS635008Y2 (enrdf_load_stackoverflow)
JPH0712852A (ja) 波形生成機能付き波形測定装置
JPS62298758A (ja) 超音波探傷装置の距離補正付欠陥検出回路
JPS6395353A (ja) 超音波探傷器の測定範囲設定装置
JPH0532724Y2 (enrdf_load_stackoverflow)
SU1626148A1 (ru) Ультразвуковой дефектоскоп
JPH0252822B2 (enrdf_load_stackoverflow)
SU1215059A1 (ru) Способ измерени коэффициента нелинейности амплитудной характеристики
SU1434245A1 (ru) Ультразвуковой эхо-импульсный толщиномер
JPH0646193B2 (ja) 超音波受信信号増幅回路及びその利得制御方式
JPH01237450A (ja) 超音波探傷装置
JPS5663252A (en) Distance amplitude correcting device