KR860006685A - 표면 크랙의 깊이를 결정하는 장치 - Google Patents

표면 크랙의 깊이를 결정하는 장치 Download PDF

Info

Publication number
KR860006685A
KR860006685A KR1019860000001A KR860000001A KR860006685A KR 860006685 A KR860006685 A KR 860006685A KR 1019860000001 A KR1019860000001 A KR 1019860000001A KR 860000001 A KR860000001 A KR 860000001A KR 860006685 A KR860006685 A KR 860006685A
Authority
KR
South Korea
Prior art keywords
depth
determining
ultrasonic transmitter
frequency spectrum
crack
Prior art date
Application number
KR1019860000001A
Other languages
English (en)
Other versions
KR940002516B1 (ko
Inventor
에르하르트 오르트리이프
페터 바오데
Original Assignee
악티엔게젤샤프트
파우. 알벤스레벤, 렌커
크라프트베르크 우니온 악티엔 게젤샤프트
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 악티엔게젤샤프트, 파우. 알벤스레벤, 렌커, 크라프트베르크 우니온 악티엔 게젤샤프트 filed Critical 악티엔게젤샤프트
Publication of KR860006685A publication Critical patent/KR860006685A/ko
Application granted granted Critical
Publication of KR940002516B1 publication Critical patent/KR940002516B1/ko

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • 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
    • G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
    • G01N29/348—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
    • 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
    • G01N29/04—Analysing solids
    • 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

Abstract

내용 없음

Description

표면 크랙의 깊이를 결정하는 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 재켓내 표면크랙의 깊이를 결정하기 위한 장치.
제2도는 재켓의 내부표면에서 반사된 초음파신호의 주파수 스펙트럼.
제3도는 유효밴드폭에서 크랙의 깊이의 함수의존도.
*도면의 주요부분에 대한 부호의 설명
1:재켓(jacket) 2:초음파송신기(transducer)
3:검지기 4:분석기
5:주파수 스펙트럼 6:평가유니트
7:중심 8:기록 유니트
9:오실로스코우프 10:크랙

Claims (2)

  1. 초음파 송신기(2)를 사용하여 위어크피스의 표면에 있는 크랙(10)의 깊이(S)를 결정하는 장치에 있어서, 초음파 송신기(2)가 초음파신호의 주파수 스펙트럼(5)을 형성하는 분석기(4)에 연결되어 있고, 분석기(4)는 크랙의 깊이(S)와 상호관계가 있는 유효밴드폭(Q) 및 주파수 스펙트럼(5)의 적분계수 그리고 주파수 스펙트럼(5)의 적분면의 중심(7)의 세로 좌표값(Y)를 결정하는 평가유니트(6)에 연결되어있으며, 평가유니트(6)는 크랙의 깊이(S)를 지시해 주는 지시기(8)에 연결되어 있는 것을 특징으로 하는 장치.
  2. 제1항에 있어서, 초음파 송신기(2)가 초음파 송신기(2)를 이동시키는 조종기상에 배열되며, 그로 인해서로로부터 비교적 넓게 떨어져있는 유효밴드폭(Q)이 재켓(1)내에서 공지된 깊이를 갖고 있는 두개의 시험홈에 대해 측정되는 것을 특징으로 하는 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019860000001A 1985-02-07 1986-01-04 표면 크랙의 깊이를 결정하는 장치 KR940002516B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3504210.9 1985-02-07
DEP3504210.9 1985-02-07
DE19853504210 DE3504210A1 (de) 1985-02-07 1985-02-07 Einrichtung zum bestimmen von oberflaechenrissen

Publications (2)

Publication Number Publication Date
KR860006685A true KR860006685A (ko) 1986-09-13
KR940002516B1 KR940002516B1 (ko) 1994-03-25

Family

ID=6261944

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860000001A KR940002516B1 (ko) 1985-02-07 1986-01-04 표면 크랙의 깊이를 결정하는 장치

Country Status (5)

Country Link
US (1) US4759221A (ko)
EP (1) EP0191346A3 (ko)
JP (1) JPS61184458A (ko)
KR (1) KR940002516B1 (ko)
DE (1) DE3504210A1 (ko)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317629B1 (en) * 1987-06-08 1994-05-18 Hitachi Construction Machinery Co., Ltd. Method of measuring depth of surface opening defects of a solid material by using ultrasonic waves
US5228004A (en) * 1988-12-21 1993-07-13 Ngk Insulators, Ltd. Ultrasonic testing method
EP0377986A3 (en) * 1988-12-21 1990-10-31 Ngk Insulators, Ltd. Ultrasonic testing method
JPH04348275A (ja) * 1990-11-14 1992-12-03 Nkk Corp 超音波探傷方法
DE4213212A1 (de) * 1992-04-22 1993-10-28 Krautkraemer Gmbh Verfahren zur Ultraschallprüfung von Punktschweißverbindungen von Blechen
US6205859B1 (en) * 1999-01-11 2001-03-27 Southwest Research Institute Method for improving defect detectability with magnetostrictive sensors for piping inspection
US6520018B1 (en) * 2000-11-17 2003-02-18 Enertec Mexico, S.R.L. De C.V. Ultrasonic inspection method for lead-acid battery terminal posts
EP2157426B1 (en) 2005-07-07 2012-09-19 Kabushiki Kaisha Toshiba Laser-based apparatus for ultrasonic detection
CN111595274B (zh) * 2019-02-21 2022-03-18 宝山钢铁股份有限公司 快速探测型钢轧辊v型槽底部全周向裂纹深度的测试装置及测试方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052889A (en) * 1976-06-10 1977-10-11 Adaptronics, Inc. System for measurement of subsurface fatigue crack size
US4041774A (en) * 1976-07-02 1977-08-16 Rockwell International Corporation Acoustic data acquisition device
US4158308A (en) * 1977-09-22 1979-06-19 Automation Industries, Inc. Time-variable bandwidth ultrasonic testing apparatus
US4274288A (en) * 1979-07-23 1981-06-23 Rockwell International Corporation Method for measuring the depth of surface flaws
US4290308A (en) * 1979-09-17 1981-09-22 Electric Power Research Institute, Inc. Method of monitoring defects in tubular products
US4339944A (en) * 1980-05-21 1982-07-20 Micro Pure Systems, Inc. Ultrasonic particulate identification
US4428235A (en) * 1980-06-20 1984-01-31 Hitachi, Ltd. Non-destructive inspection by frequency spectrum resolution
US4428237A (en) * 1980-11-13 1984-01-31 Electric Power Research Institute, Inc. System and method for measuring ultrasonic return signals
JPS5919852A (ja) * 1982-07-26 1984-02-01 Fujitsu Ltd 超音波生体組織特性測定方式
JPS59171540A (ja) * 1983-03-18 1984-09-28 富士通株式会社 スペクトル形状利用測定方法

Also Published As

Publication number Publication date
KR940002516B1 (ko) 1994-03-25
EP0191346A3 (de) 1990-05-02
DE3504210A1 (de) 1986-08-07
US4759221A (en) 1988-07-26
JPS61184458A (ja) 1986-08-18
EP0191346A2 (de) 1986-08-20

Similar Documents

Publication Publication Date Title
EP0099024A3 (en) Method and device for measuring reflection
SE8007596L (sv) Anordning for metning och indikering av fluidumnivan i kerl
KR830003734A (ko) 충격대상물의 크기 검지용방법
KR860006685A (ko) 표면 크랙의 깊이를 결정하는 장치
US5031451A (en) Fluid level monitor
JPH07248315A (ja) 密度計測装置
SE0300848D0 (sv) Acoustic Analysis of Gas Mixtures
JPS6431048A (en) Method for measuring surface opening crack depth of concrete by ultrasonic wave
AU2021201A (en) Apparatus and method for measuring a property of a liquid
SU815577A1 (ru) Самоцентрирующийс захват
SU1374059A1 (ru) Способ градуировки измерител скорости распространени ультразвука
JPS6438620A (en) Measuring method of contact stress of pin by ultrasonic wave
KR830005569A (ko) 초음파 검출장치
US2671862A (en) Detector head for sonic inspection devices
SU1061039A1 (ru) Способ определени свободного газопаросодержани в жидкости
SU1185227A1 (ru) Настроечный образец дл ультразвукового контрол
SU697916A1 (ru) Способ создани акустического контакта при ультразвуковых измерени х
GB2054146A (en) Ultrasonic Testing
SU1205008A1 (ru) Ультразвуковой способ контрол содержани жидкости в пропитанных материалах
Chaskelis Transducers—fact and fiction
RU2040790C1 (ru) Способ ультразвукового контроля
SU1260842A1 (ru) Способ определени физико-механических свойств объектов при помощи преобразовател с буферным стержнем
SU1714486A1 (ru) Способ определени акустического сопротивлени однородных сред
SU862067A1 (ru) Испытательный образец дл эхоимпульсной ультразвуковой дефектоскопии
SU808930A1 (ru) Способ определени физико-меха-НичЕСКиХ ХАРАКТЕРиСТиК МАТЕРиАлОВ

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
NORF Unpaid initial registration fee