Patent ID: 7460435

Claim:
A method of producing an acoustic transducer for use on a tubular, comprising: disposing an arcuate shaped member formed as a sector of a cylindrical surface of revolution on the tubular; disposing a plurality of acoustic transducer elements on the member to receive or emit acoustic energy, the arcuate shaped member being configured to provide voltage to the elements; configuring a first conductor in contact with first planar surfaces of the transducer elements; configuring a second conductor in contact with second planar surfaces of the transducer elements; the transducer elements on the first planar surfaces electrically isolated from the transducer elements on the second planar surfaces; configuring a subset of the plurality of transducer elements disposed on the member for activation with a voltage of different polarity in relation to another element disposed thereon; and sealing the member and transducer elements to form a liquid-free acoustic transducer, wherein the tubular has an exterior surface configured for contact with well-bore environment, and the acoustic transducer is configured for placement around the exterior surface of the tubular in contact with well-bore environment.