SE445614B - Forfarande och anordning for sendning och mottagning av elektromagnetiskt alstrade och mottagna pulser av ultraljud, fremst vid oforstorande provning av elektriskt ledande material - Google Patents

Forfarande och anordning for sendning och mottagning av elektromagnetiskt alstrade och mottagna pulser av ultraljud, fremst vid oforstorande provning av elektriskt ledande material

Info

Publication number
SE445614B
SE445614B SE7811511A SE7811511A SE445614B SE 445614 B SE445614 B SE 445614B SE 7811511 A SE7811511 A SE 7811511A SE 7811511 A SE7811511 A SE 7811511A SE 445614 B SE445614 B SE 445614B
Authority
SE
Sweden
Prior art keywords
pulse
magnetic field
transmitter coil
capacitor
pulse generator
Prior art date
Application number
SE7811511A
Other languages
English (en)
Swedish (sv)
Other versions
SE7811511L (sv
Inventor
T Robinson
Original Assignee
Studsvik Energiteknik Ab
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 Studsvik Energiteknik Ab filed Critical Studsvik Energiteknik Ab
Priority to SE7811511A priority Critical patent/SE445614B/sv
Priority to US06/089,717 priority patent/US4307615A/en
Priority to DE19792944821 priority patent/DE2944821A1/de
Priority to GB7938402A priority patent/GB2036970B/en
Priority to JP14425779A priority patent/JPS55109960A/ja
Publication of SE7811511L publication Critical patent/SE7811511L/
Publication of SE445614B publication Critical patent/SE445614B/sv

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
    • 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
    • G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
    • 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
    • G01N29/228—Details, e.g. general constructional or apparatus details related to high temperature conditions
    • 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
    • G01N29/24—Probes
    • G01N29/2412—Probes using the magnetostrictive properties of the material to be examined, e.g. electromagnetic acoustic transducers [EMAT]
    • 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
    • G01N29/341—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with time characteristics
    • G01N29/343—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with time characteristics pulse waves, e.g. particular sequence of pulses, bursts
    • 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
    • G01N2291/023—Solids
    • G01N2291/0234—Metals, e.g. steel
    • 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
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
    • 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
    • G01N2291/10—Number of transducers
    • G01N2291/102—Number of transducers one emitter, one receiver

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • General Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
SE7811511A 1978-11-07 1978-11-07 Forfarande och anordning for sendning och mottagning av elektromagnetiskt alstrade och mottagna pulser av ultraljud, fremst vid oforstorande provning av elektriskt ledande material SE445614B (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE7811511A SE445614B (sv) 1978-11-07 1978-11-07 Forfarande och anordning for sendning och mottagning av elektromagnetiskt alstrade och mottagna pulser av ultraljud, fremst vid oforstorande provning av elektriskt ledande material
US06/089,717 US4307615A (en) 1978-11-07 1979-10-31 Method and apparatus for transmitting and receiving electromagnetically generated and received ultrasonic pulses, primarily at non-destructive testing
DE19792944821 DE2944821A1 (de) 1978-11-07 1979-11-06 Verfahren und vorrichtung zum senden und empfangen von ultraschall, insbesondere beim zerstoerungsfreien pruefen
GB7938402A GB2036970B (en) 1978-11-07 1979-11-06 Transmitting and receiving electroultrasonic pulses in non-destructive testing
JP14425779A JPS55109960A (en) 1978-11-07 1979-11-07 Method of and apparatus for receiving and transmitting ultrasonic wave pulse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7811511A SE445614B (sv) 1978-11-07 1978-11-07 Forfarande och anordning for sendning och mottagning av elektromagnetiskt alstrade och mottagna pulser av ultraljud, fremst vid oforstorande provning av elektriskt ledande material

Publications (2)

Publication Number Publication Date
SE7811511L SE7811511L (sv) 1980-05-08
SE445614B true SE445614B (sv) 1986-07-07

Family

ID=20336287

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7811511A SE445614B (sv) 1978-11-07 1978-11-07 Forfarande och anordning for sendning och mottagning av elektromagnetiskt alstrade och mottagna pulser av ultraljud, fremst vid oforstorande provning av elektriskt ledande material

Country Status (5)

Country Link
US (1) US4307615A (cs)
JP (1) JPS55109960A (cs)
DE (1) DE2944821A1 (cs)
GB (1) GB2036970B (cs)
SE (1) SE445614B (cs)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3029036A1 (de) * 1980-07-31 1982-03-04 Mannesmann AG, 4000 Düsseldorf Vorrichtung zur pruefung von werkstoffen
US4408493A (en) * 1982-03-24 1983-10-11 Rockwell International Corporation Directional ultrasonic transducers
GB8420244D0 (en) * 1984-08-09 1984-09-12 Shell Int Research Transducing device
JPS6436789U (cs) * 1987-08-28 1989-03-06
JP2739972B2 (ja) * 1988-10-26 1998-04-15 株式会社東芝 超音波探傷装置
JPH02140096U (cs) * 1989-04-27 1990-11-22
US5392652A (en) * 1992-04-07 1995-02-28 Lambert, Macgill, Thomas, Inc. Method and apparatus for inspection of metal objects utilizing variable angle ultrasonic transducer
JPH0628484U (ja) * 1992-09-14 1994-04-15 株式会社トヨックス 土木用ホース
US5619423A (en) * 1994-01-21 1997-04-08 Scrantz; Leonard System, method and apparatus for the ultrasonic inspection of liquid filled tubulars and vessels
CA2151116C (en) * 1994-06-09 1999-09-14 Paul J. Latimer Zig-zag electromagnetic acoustic transducer scan
US5481916A (en) * 1994-07-22 1996-01-09 Tsi Sensor Incorporated Combined ultrasonic and rotating eddy current probe and method of non-destructive testing of materials
JPH08334431A (ja) * 1995-06-09 1996-12-17 Mitsubishi Electric Corp 非破壊検査装置
DE19752154B4 (de) * 1997-11-25 2011-05-12 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH Sendesystem für Ultraschallwellen
GB0206174D0 (en) * 2002-03-15 2002-05-01 Pii Ltd Electromagnetic acoustic transducer
RU2241984C1 (ru) * 2003-07-15 2004-12-10 Ульяновский государственный технический университет Устройство для виброакустического контроля длинномерных конструкций сложной формы
CN101204020A (zh) * 2005-06-23 2008-06-18 皇家飞利浦电子股份有限公司 使用低复杂度发射机增加对噪声免疫力的感应通信系统
CN103235046A (zh) * 2013-05-09 2013-08-07 哈尔滨工业大学 一种单向发射电磁超声表面波换能器及采用该换能器检测金属表面缺陷方法
RU2697025C2 (ru) * 2017-11-22 2019-08-08 федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный технический университет" Устройство для виброакустического контроля длинномерных конструкций

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2643601C3 (de) * 1976-09-28 1979-03-08 Hoesch Werke Ag, 4600 Dortmund Verfahren zur zerstörungsfreien Werkstoffprüfung mit Ultraschall unter Verwendung eines elektrodynamischen Schallwandlers

Also Published As

Publication number Publication date
JPS55109960A (en) 1980-08-23
JPS6245497B2 (cs) 1987-09-28
SE7811511L (sv) 1980-05-08
DE2944821C2 (cs) 1991-06-13
GB2036970A (en) 1980-07-02
GB2036970B (en) 1983-06-15
US4307615A (en) 1981-12-29
DE2944821A1 (de) 1980-05-14

Similar Documents

Publication Publication Date Title
SE445614B (sv) Forfarande och anordning for sendning och mottagning av elektromagnetiskt alstrade och mottagna pulser av ultraljud, fremst vid oforstorande provning av elektriskt ledande material
EP0174115A2 (en) Method and apparatus for safer remotely controlled firing of ignition elements
US4417207A (en) Circuit for injecting simulating-noise signals in a power line
SE445017B (sv) Forfarande och anordning for sendning och mottagning av elektromagnetiskt alstrade pulser av ultraljud vid oforstorande provning av elektriskt ledande material
EP3106890A1 (en) Method for measuring a stator core of an electric machine and measuring device
US7148691B2 (en) Step current inductive antenna for pulse inductive metal detector
US3375510A (en) Means for indicating the passage of a fault current along a conductor
KR20150139913A (ko) 전기 에너지 생성 장치 및 방법
US3621384A (en) Apparatus for locating a short circuit in a dc wiring
CN113189515A (zh) 一种基于ifra磁耦合的电抗器匝间短路故障非接触式在线检测方法
US11378921B2 (en) Thermoelectric watch testable in production or after-sales service
US4276484A (en) Method and apparatus for controlling current in inductive loads such as large diameter coils
JPH0228824B2 (cs)
JP2526158B2 (ja) コヒ―ラと発光ダイオ―ドからなる検出器
RU2667893C1 (ru) Устройство для исследования вакуумного разряда электронов в магнитном поле
SU1215814A1 (ru) Ударна установка с электромагнитным приводом
Ravi et al. Role of electron inertia in nonlinear electron magnetohydrodynamics
RU1827652C (ru) Устройство бесконтактного диагностировани логических состо ний цифровых интегральных схем
SU748319A1 (ru) Импульсный вихретоковый металлоискатель
SE445616B (sv) Forfarande att introducera elektromagnetiskt ultraljud i elektriskt ledande material vid oforstorande provning samt anordning for utforande av forfarandet
JPH08309282A (ja) 衝撃発生装置
RU2194998C1 (ru) Устройство для измерения постоянного тока
WO1993006507A1 (en) Method of electric geological exploration
SU913247A1 (ru) Устройство для ультразвукового контроля металлов 1
SU1728785A1 (ru) Устройство дл ультразвукового контрол металлов

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 7811511-0

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 7811511-0

Format of ref document f/p: F