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- W1522754094 abstract "Abstract : This work describes an ultrasonic acoustical transducer used to generate and receive ultrasonic waves. Transducer construction includes a membrane of polyvinylidene fluoride (PVDF), a piezoelectric polymer, which is deflected by liquid or gas pressure to form a concave or convex surface. When an RF signal is applied to the membrane transducer ultrasonic waves are generated. Calculations for the performance of the transducer are given along with the results of a series of ten tests. A 1.27 cm diameter transducer was constructed for this study. Results indicate that, although the acoustical power output of the device is lower than conventional transducers, the lower construction costs and variable focal length capability may make it ideal for fabrication into large transducer arrays. (Author)" @default.
- W1522754094 created "2016-06-24" @default.
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- W1522754094 date "1980-09-30" @default.
- W1522754094 modified "2023-09-24" @default.
- W1522754094 title "A Polyvinylidene Fluoride Differential Membrane Pressure Acoustical Array Transducer." @default.
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