Communications – electrical: acoustic wave systems and devices – Distance or direction finding – With beam steering – scanning – or focussing
Patent
1988-01-12
1989-02-14
Steinberger, Brian S.
Communications, electrical: acoustic wave systems and devices
Distance or direction finding
With beam steering, scanning, or focussing
367155, 367157, 367162, 310337, 310800, H04R 1700
Patent
active
048051578
ABSTRACT:
A piezoelectric polymer (PVDF) hydrophone array consists of multiple layers disposed symmetrically about a stiffener layer. The stiffener layer prevents flexural modes in the operating frequency band and provides a mounting structure for acceleration noise cancellation. The piezoelectric polymer layers are attached to the stiffener layer either directly or through intervening layers which provide mechanical vibration isolation of the polymer and stiffener layers.
REFERENCES:
patent: 2636134 (1953-04-01), Arons et al.
patent: 2943297 (1960-06-01), Steinberger et al.
patent: 3521090 (1970-07-01), Angeloff
patent: 3590287 (1971-06-01), Berlincourt
patent: 3764848 (1973-10-01), Berlincourt
patent: 3860899 (1975-01-01), Watlington
patent: 3894169 (1975-07-01), Miller
patent: 3971250 (1976-07-01), Taylor
patent: 4166229 (1979-08-01), DeReggi et al.
patent: 4245329 (1981-01-01), Dubois
patent: 4330730 (1982-05-01), Kurz et al.
patent: 4368401 (1983-01-01), Martin et al.
patent: 4376302 (1983-03-01), Miller
patent: 4381470 (1983-04-01), Leach et al.
patent: 4461179 (1984-07-01), Holt
patent: 4491760 (1985-01-01), Linvill
B. Woodward and R. C. Chandra, "Underwater Acoustic Measurements on Polyvinylidene Fluoride Transducers", Electrcomponent Science and Technology, 1978, vol. 5, pp. 149-157.
Yoram Berlinsky, "Transduction with PVF.sub.2 .RTM. in the Ocean Environment", Naval Research Laboratory Report 8365, Mar. 28, 1980.
Patents Abstracts of Japan, vol. 9, No. 35 (E-296)[1758], Feb. 14, 1985; and Jp-A-59 176 992 (Boeicho Gijutsu Kenkyu Honbu) Oct. 6, 1984.
Eascon '79 Record, vol. 3, 1979, IEEE Electronics and Aerospace Systems Convention, Arlington, VA, Sep. 25-27, 1978, pp. 517-523, NY, U.S.; J. M. Powers: "Piezoelectric Polymer-An Emerging Hydrophone Technology".
Raytheon Company
Santa Martin M.
Sharkansky Richard M.
Steinberger Brian S.
LandOfFree
Multi-layered polymer hydrophone array does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-layered polymer hydrophone array, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-layered polymer hydrophone array will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1371345