US3243768A
(en )
1966-03-29
Integral directional electroacoustical transducer for simultaneous transmission and reception of sound
KR100296052B1
(ko )
2001-10-24
초음파송수신기
US4333028A
(en )
1982-06-01
Damped acoustic transducers with piezoelectric drivers
US4260928A
(en )
1981-04-07
Electro-acoustic transducer with horn and reflector
US2617874A
(en )
1952-11-11
System for the production of a high-pressure sound field
US3946831A
(en )
1976-03-30
Acoustic transmitter
US4844198A
(en )
1989-07-04
Plane wave focusing lens
GB2263842A
(en )
1993-08-04
Directional electro-acoustic transducers comprising a sealed shell consisting of two portions
US3302163A
(en )
1967-01-31
Broad band acoustic transducer
US2753543A
(en )
1956-07-03
Transducers
SU410822A1
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html )
1974-01-15
US3703652A
(en )
1972-11-21
Electroacoustic transducer
JPH10224880A
(ja )
1998-08-21
超音波アレイセンサ
US4450542A
(en )
1984-05-22
Multiple beam lens transducer for sonar systems
EP0039986B1
(en )
1983-04-06
An acoustic transducer system
US3295629A
(en )
1967-01-03
Acoustical wave translation device
US4551826A
(en )
1985-11-05
Multiple beam lens transducer with collimator for sonar systems
US3895688A
(en )
1975-07-22
Acoustic transmitter
SU1185231A1
(ru )
1985-10-15
Ультразвуковой преобразователь
US2753528A
(en )
1956-07-03
Ultrasonic delay lines
US3317861A
(en )
1967-05-02
Spherical reflector elastic wave delay device with planar transducers
SU491413A1
(ru )
1975-11-15
Электроакустический преобразователь
EP0112688B1
(en )
1989-04-05
Multiple beam lens transducer with collimator for sonar systems
US3521226A
(en )
1970-07-21
Mechanically scanned acoustic transducer
SU716137A1
(ru )
1980-02-15
Устройство дл разделени траекторий ультразвуковых волн