Calculation of the transmission characteristics of the piezoelectric transducer in ultrasonic waves receiving mode. Part 2. Calculation of the receiver frequency response
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Abstract
Basis on the previously developed model of the registration process of contact type receiver of ultrasonic wave has been developed a mathematical model of the transducer, which takes into account the finite size of the disk, the existence of the matching liquid layer, the real values of the electrical load and the existence of the rear acoustic load. As shown in the qualitative sense, each of the receiver design parameters affect the sensitivity of the piezoelectric receiver. The optimum values for the relative thickness of the piezoceramic disc, relative acoustic impedance of the rear acoustic load, the thickness of the matching liquid and its viscosity, as well as the values of the input impedance of electrical circuitry connected to the piezoceramic disc have been defined. Reference 6, figures 3.
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