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Ultrasonic medical imaging apparatus having a polyvinylidene fluoride transducer
Ultrasonic medical imaging apparatus having a polyvinylidene fluoride transducer
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机译:具有聚偏二氟乙烯换能器的超声医学成像设备
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摘要
An ultrasonic medical imaging apparatus provides an ultransonic transducer constructed with polyvinylidene fluoride. Circuitry is included for generating an energizing pulse for the transducer, the pulse having a predetermined period and an instantaneous frequency which is varied from a first frequency to a second frequency during the period. Circuitry is provided for digitizing electrical signals from the transducer which electrical signals represent ultrasonic reflections received by the transducer in response to the energizing pulse, and a signal processor cross-correlates the digitized electrical signals with the energizing pulse.
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