EP 0641606 A2 19950308 - Broadband phased array transducer design with frequency controlled two dimension capability and methods for manufacture thereof.
Title (en)
Broadband phased array transducer design with frequency controlled two dimension capability and methods for manufacture thereof.
Title (de)
Breitbandige phasengesteuerte Gruppenwandlerentwurf mit frekwenzkontrollierte Zwei-dimensionale Mögligkeit und Verfahren zu ihrer Produktion.
Title (fr)
Conception d'un réseau d'antennes à commande de phase ayant des possibilités à deux dimensions contrÔlé par fréquence et procédé pour sa production.
Publication
Application
Priority
- US 11786893 A 19930907
- US 11786993 A 19930907
Abstract (en)
There is provided a transducer array with a plurality of piezoelectric elements having a minimum and maximum thickness. In one embodiment, the maximum thickness is less than or equal to 140 percent of the minimum thickness. In an alternate embodiment, the maximum thickness is greater than 140 percent of the minimum thickness and the transducer array is capable of simulating the excitation of a wider aperture twodimensional transducer array. One or more matching layers may be used to further increase bandwidth performance. In addition, a two crystal transducer element as well as a composite transducer structure may be formed using the principles of this invention.
IPC 1-7
IPC 8 full level
G01N 29/24 (2006.01); A61B 8/00 (2006.01); B06B 1/06 (2006.01); G01S 7/02 (2006.01); G10K 11/32 (2006.01); H01L 41/09 (2006.01); H04R 17/00 (2006.01); H04R 31/00 (2006.01); H04R 17/08 (2006.01)
CPC (source: EP)
B06B 1/0622 (2013.01); B06B 1/0644 (2013.01); G10K 11/32 (2013.01); H04R 17/08 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0641606 A2 19950308; EP 0641606 A3 19960612; EP 0641606 B1 20000202; AT E189415 T1 20000215; AU 688334 B2 19980312; AU 7020994 A 19950323; CA 2129946 A1 19950308; CA 2129946 C 19980929; DE 69422867 D1 20000309; DE 69422867 T2 20001207; JP 3478874 B2 20031215; JP H07107595 A 19950421
DOCDB simple family (application)
EP 94306515 A 19940905; AT 94306515 T 19940905; AU 7020994 A 19940810; CA 2129946 A 19940811; DE 69422867 T 19940905; JP 19920094 A 19940824