Patent ID: 7677104

Claim:
A transducer assembly for an ultrasonic cement analyzer comprising: an acoustic port having an external flat surface; a ceramic transducer having a first flat surface and a second flat surface, said second flat surface in communication with said external flat surface of said acoustic port; a back mass having a first flat surface and a second flat surface, said second flat surface of said back mass in communication with the first flat surface of said ceramic transducer; a tension bolt for securing said acoustic port, said ceramic transducer, and said back mass tightly together; an electrical connector in electrical communication with said back mass; wherein said flat surfaces have a minimal surface variance to promote acoustic coupling between said acoustic port, said ceramic transducer, and said back mass; wherein said acoustic port is adapted to be received in an end plug of a pressure vessel; and wherein said acoustic port defines an annulus that acoustically isolates a signal from said end plug.