GB1549902A - Electrodynamic acoustic transducer - Google Patents

Electrodynamic acoustic transducer

Info

Publication number
GB1549902A
GB1549902A GB17652/77A GB1765277A GB1549902A GB 1549902 A GB1549902 A GB 1549902A GB 17652/77 A GB17652/77 A GB 17652/77A GB 1765277 A GB1765277 A GB 1765277A GB 1549902 A GB1549902 A GB 1549902A
Authority
GB
United Kingdom
Prior art keywords
acoustic transducer
electrodynamic acoustic
electrodynamic
transducer
acoustic
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
GB17652/77A
Other languages
English (en)
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.)
Hoesch Werke AG
Original Assignee
Hoesch Werke AG
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 Hoesch Werke AG filed Critical Hoesch Werke AG
Publication of GB1549902A publication Critical patent/GB1549902A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
GB17652/77A 1976-05-15 1977-04-27 Electrodynamic acoustic transducer Expired GB1549902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2621684A DE2621684C3 (de) 1976-05-15 1976-05-15 Elektrodynamischer Schallwandler

Publications (1)

Publication Number Publication Date
GB1549902A true GB1549902A (en) 1979-08-08

Family

ID=5978074

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17652/77A Expired GB1549902A (en) 1976-05-15 1977-04-27 Electrodynamic acoustic transducer

Country Status (9)

Country Link
US (1) US4138896A (enExample)
AT (1) AT379689B (enExample)
BE (1) BE854605A (enExample)
DE (1) DE2621684C3 (enExample)
FR (1) FR2350890A1 (enExample)
GB (1) GB1549902A (enExample)
IT (1) IT1086574B (enExample)
LU (1) LU77330A1 (enExample)
NL (1) NL173608C (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3123935C2 (de) * 1981-06-16 1985-03-28 Nukem Gmbh, 6450 Hanau Elektrodynamischer Wandler
DE3128825C2 (de) * 1981-07-21 1985-04-18 Nukem Gmbh, 6450 Hanau Vorrichtung zur zerstörungsfreien Prüfung von ferromagnetischen Materialien
GB8420244D0 (en) * 1984-08-09 1984-09-12 Shell Int Research Transducing device
DE3511768C2 (de) * 1985-03-30 1994-06-09 Betr Forsch Inst Angew Forsch Elektromagnetischer Wandler
ES2033288T3 (es) * 1986-12-11 1993-03-16 Siemens Aktiengesellschaft Instalacion para la calibracion de un sistema de supervision del sonido estructural.
DE4035592C1 (enExample) * 1990-11-06 1992-04-16 Mannesmann Ag, 4000 Duesseldorf, De
DE19637424A1 (de) * 1996-09-13 1998-03-26 Siemens Ag Verfahren zum Erzeugen horizontal polarisierter transversaler Ultraschallwellen zur zerstörungsfreien Werkstoffprüfung und Prüfvorrichtung
DE10045693A1 (de) 2000-09-15 2002-04-04 Infineon Technologies Ag Ladungspumpenschaltung
GB2619000A (en) * 2022-05-16 2023-11-29 Jr Dynamics Ltd Ultrasonic transducer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB425201A (en) * 1933-06-14 1935-03-08 Geigy Ag J R An improvement in the production of leather
US3460063A (en) * 1968-07-26 1969-08-05 James R Houck Ultrasonic transducer
US3583213A (en) * 1968-07-26 1971-06-08 James R Houck Nondestructive testing of conductive objects using ultrasonic waves
DE2026936A1 (de) * 1970-06-02 1971-12-16 Davidts D Ultraschallschwinger zur Erzeugung homo gener Schallfelder
SU426716A1 (ru) * 1972-04-04 1974-05-05 Ж. Г. Никифоренко, И. И. Авербух, Н. Г. Бочков , Г. В. Парфенов Устройство для бесконтактного возбуждения и приема ультразвука
US3963980A (en) * 1973-08-29 1976-06-15 Jury Mikhailovich Shkarlet Ultrasonic instrument for non-destructive testing of articles with current-conducting surface
FR2245251A5 (en) * 1973-09-25 1975-04-18 Inst Introskopii Non-destructive ultrasonic tester of workpieces - has electrically conductive surface for quality control and thickness measurement

Also Published As

Publication number Publication date
FR2350890B1 (enExample) 1983-12-09
US4138896A (en) 1979-02-13
IT1086574B (it) 1985-05-28
NL173608B (nl) 1983-09-16
DE2621684B2 (de) 1978-10-26
NL7704458A (nl) 1977-11-17
ATA180177A (de) 1985-06-15
NL173608C (nl) 1984-02-16
LU77330A1 (enExample) 1977-12-13
BE854605A (fr) 1977-11-14
DE2621684C3 (de) 1979-07-12
AT379689B (de) 1986-02-10
FR2350890A1 (fr) 1977-12-09
DE2621684A1 (de) 1977-11-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee