Measuring and testing – Vibration – By mechanical waves
Patent
1982-09-28
1985-11-05
Birmiel, Howard A.
Measuring and testing
Vibration
By mechanical waves
73628, 367105, 310334, 310336, 128660, G01N 2900
Patent
active
045506060
ABSTRACT:
A transducer array and excitation circuitry for producing ultrasonic waves in a controlled pattern and for causing the waves to be scanned along the array. The array comprises a plurality of transducer elements coupled to each other in such a way as to produce a desired wave pattern when selected elements are activated. The array may be constructed from plural transducer elements or from a single plate of transducer material comprising a plurality of elements that can be individually activated, the plural elements being intercoupled to produce the desired wave pattern. The arrangement is such that a minimum number of electrical connections to the transducer elements are required to create the desired wave pattern and to scan that pattern across the face of the array.
REFERENCES:
patent: 2698927 (1955-01-01), Parr, Jr.
patent: 2928068 (1960-03-01), Samsel et al.
patent: 3096846 (1963-07-01), Savit et al.
patent: 3820387 (1974-06-01), Grabendorfer et al.
patent: 3824531 (1974-07-01), Walsh
patent: 3836948 (1974-09-01), Burkhardt et al.
patent: 3881466 (1975-05-01), Wilcox
patent: 3911730 (1975-10-01), Niklas
patent: 3979711 (1976-09-01), Maginness et al.
patent: 4101795 (1978-07-01), Fukomoto et al.
patent: 4106348 (1978-08-01), Auphan
patent: 4112411 (1978-09-01), Alais et al.
patent: 4117446 (1978-09-01), Alais
patent: 4140022 (1979-02-01), Maslak
patent: 4145931 (1979-03-01), Tancrell
patent: 4180792 (1979-12-01), Ledernian et al.
patent: 4192977 (1980-03-01), Stamm
patent: 4219846 (1980-08-01), Auphan
patent: 4241610 (1980-12-01), Anderson
patent: 4277712 (1981-07-01), Hanafy
patent: 4281550 (1981-08-01), Erikson
patent: 4287770 (1981-09-01), Weyns
patent: 4446396 (1984-05-01), Claus et al.
J. Meindl and A. Macovski, "Recent Advances in the Development of New Imaging Techniques", Stanford Elc. Labs., Chapt. 8, vol. 1, 175-201.
N. Born, F. Hagemeijer, C. T. Nacee, J. Roelandt, C. Ligtvoet and J. A. Vogel, Erasmus Univ., "Two-Dimensional Real-Time Echocardiography", Chapt. 9, Research Studies Press, 203-211 (1977).
F. D. Martin and M. A. Breadzeale, "A Simple Way to Eliminate Diffraction Lobes Emitted by Ultrasonic Transducers" Jor. Acoust. Soc.
M. A. Breazeale, F. D. Martin and Bruce Blackburn, "Reply to Radiation Pattern of Partically Electroded Piezoelectric Transducers" 70(6) 1791-1793 (1981).
J. Jarzynski and W. J. Trott, "Array Shading for a Broadband Constant Directivity Transducer" Jour. Acoustic Soc. 64(5) 1266-1269 (1978).
T. A. Whittingham, "A Hand-Held Electronically Switched Array for Rapid Ultrasonic Scanning", Ultrasonics 29-33 (1976).
L. Pourcelot, M. Berson and A. Roncin, "Use of a Liner Multitransducer Array for Real-Time Compound Scanning", Fifth International Symposium on Ultrasonic Imaging and Tissue Characterization, National Bureau of Standards, 66 (1980).
L. Filipczynski and J. Etienne, "Theoretical Study and Experiments on Spherical Focusing Transducers with Gaussian Surface Velocity Distribution", Acustica vol. 28, 121-138 (1973).
R. D. Selbie, J. M. S. Hutchison and J. R. Mallard, "The Aberdeen Phased Array: A Real-Time Ultrasonic Scanner with Dynamic Focus", Med. & Bio. Eng. & Comput., 18 335-343 (1980).
von K. von Haselberg and J. Krautkramer, "Ein Ultraschall-Strahler fur Die Werkstoffprufung mit Verbessertem Nahfeld", Acustica vol. 9, 359-364 (1959).
Birmiel Howard A.
Cornell Research Foundation Inc.
LandOfFree
Ultrasonic transducer array with controlled excitation pattern does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultrasonic transducer array with controlled excitation pattern, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic transducer array with controlled excitation pattern will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-290674