G - Physics – 10 – K
Patent
G - Physics
10
K
349/65
G10K 11/34 (2006.01) B06B 1/06 (2006.01)
Patent
CA 1230409
ABSTRACT: Ultrasonic transducer arrangement comprising a network of piezcelectric transducer elements. An ultrasonic transducer arrangement comprising a network of piezoelectric parallel transducer elements having a width W or in the form of a parallelepipedon having a length L and a width W, characterized in that the thickness T of the said transducer elements is equal to half the wavelength corresponding to a frequency F equal to the average value of at least two of the successive piezoelectric resonance frequencies of the piezoelectric material concerned, the products of the said thickness and the said resonance frequencies framing, in the bidimensional diagram of the curves F.T = f(W/T) of the spread of the resonance frequencies relating to the piezoelectric material concerned or in the tridimensional diagram of the curves F.T = f(W/T,L/T), coupling zones of at least two successive vibratory modes of this material. Application: Echograph comprising assemblies of transducers. Reference: Fig. 2.
481627
Koninklijke Philips Electronics N.v.
Van Steinburg C.e.
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