Broadband phased array transducer design with frequency controll

Details Broadband phased array transducer design with frequency controll Broadband phased array transducer design with frequency controll

1996-06-12

1998-04-28

Manuel, George

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

A61B 800

Patent

active

057438552

ABSTRACT:
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 two-dimensional 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.

REFERENCES:
patent: 2486916 (1949-11-01), Bottom
patent: 3028752 (1962-04-01), Bacon
patent: 3666979 (1972-05-01), McElroy
patent: 3694677 (1972-09-01), Guttwein et al.
patent: 3833825 (1974-09-01), Haan
patent: 3936791 (1976-02-01), Kossoff
patent: 3968680 (1976-07-01), Vopilkin et al.
patent: 4016751 (1977-04-01), Kossoff
patent: 4044273 (1977-08-01), Kanda et al.
patent: 4084582 (1978-04-01), Nigam
patent: 4184094 (1980-01-01), Kopel
patent: 4205686 (1980-06-01), Harris et al.
patent: 4252022 (1981-02-01), Hurwitz
patent: 4276491 (1981-06-01), Daniel
patent: 4317059 (1982-02-01), Besson
patent: 4350917 (1982-09-01), Lizzi et al.
patent: 4398539 (1983-08-01), Proudian
patent: 4412544 (1983-11-01), Beretsky et al.
patent: 4424465 (1984-01-01), Ohigashi et al.
patent: 4437348 (1984-03-01), Sasaki
patent: 4440025 (1984-04-01), Hayakawa et al.
patent: 4445380 (1984-05-01), Kaminski
patent: 4447715 (1984-05-01), Brisken et al.
patent: 4478085 (1984-10-01), Saski
patent: 4485321 (1984-11-01), Klicker et al.
patent: 4507582 (1985-03-01), Glenn
patent: 4518889 (1985-05-01), Hoen
patent: 4523122 (1985-06-01), Tone et al.
patent: 4534221 (1985-08-01), Fife et al.
patent: 4537074 (1985-08-01), Dietz
patent: 4543293 (1985-09-01), Nakamura et al.
patent: 4549533 (1985-10-01), Cain et al.
patent: 4611141 (1986-09-01), Hamada et al.
patent: 4659956 (1987-04-01), Trzaskos et al.
patent: 4699150 (1987-10-01), Kawabuchi et al.
patent: 4794929 (1989-01-01), Maerfeld
patent: 4866683 (1989-09-01), Phillips
patent: 4869768 (1989-09-01), Zola
patent: 4870972 (1989-10-01), Maerfield et al.
patent: 4907573 (1990-03-01), Nagasaki
patent: 4917096 (1990-04-01), Engelhart
patent: 4963782 (1990-10-01), Bui et al.
patent: 5025790 (1991-06-01), Dias
patent: 5101133 (1992-03-01), Schafer
patent: 5111805 (1992-05-01), Jaggy et al.
patent: 5115809 (1992-05-01), Saitoh
patent: 5115810 (1992-05-01), Watanabe
patent: 5193527 (1993-03-01), Schafer
patent: 5291090 (1994-03-01), Dias
patent: 5415175 (1995-05-01), Hanafy et al.
patent: 5423220 (1995-06-01), Finsterwald et al.
Urick, "Principles of Underwater Sound" McGraw-Hill, New York, New York, 1975.
Schrope, B. et al., "Stimulated Capillary Blood Flow Measurement Using a Nonlinear Contrast Agent," Ultrasonic Imaging, vol. 14, No. 2, pp. 134-158, Apr. 1, 1992.
Barthe, P.G. et al. "A Staircase Model of Tapered-Thickness Piezoelectric Ceramics" Journal of the Acoustical Society of America, vol. 89, No. 3, Mar. 1, 1991, pp. 1434-1442.
Newnham, "Connectivity and Pizoelectric-Pryoelectric Composites," 1978, pp. 525-536.
Swartz, R. et al. "Generation with PVF.sub.2," IEEE Trans. vol. SU-27 #6 Nov. 1980 pp. 295-303.

Affiliated with

Also associated with

Rating

Broadband phased array transducer design with frequency controll does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Broadband phased array transducer design with frequency controll, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Broadband phased array transducer design with frequency controll will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1527829