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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Properties of transverse ultrasonic transducers of ferroelectric polymers working in thickness shear modes
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Properties of transverse ultrasonic transducers of ferroelectric polymers working in thickness shear modes

机译：在厚度剪切模式下工作的铁电聚合物横向超声换能器的性能

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Shear piezoelectric properties of poly(vinylidene fluoride) (PVDF) and copolymer of vinylidene fluoride and trifluoroethylene [P(VDF/TrFE)] have been studied precisely in a wide temperature range from 10 to 400 K. It was found that these polymers have the shear electromechanical coupling factors k/sub 15/ and k/sub 24/ large enough to be utilized for transverse ultrasonic transducers operating in a wide frequency range and in a wide temperature range below 400 K. Shear mode ultrasonic transducers of P(VDF/TrFE) were fabricated and their performances were studied both experimentally and theoretically. The shear polymer transducers are useful for generation and detection of transverse ultrasonic waves.
机译：聚偏二氟乙烯（PVDF）和偏二氟乙烯与三氟乙烯的共聚物[P（VDF / TrFE）]的剪切压电性能已在10至400 K的宽温度范围内精确研究。发现这些聚合物具有剪切机电耦合系数k / sub 15 /和k / sub 24 /足够大，可用于在400 K以下的宽频率范围和宽温度范围内工作的横向超声换能器。P（VDF / TrFE的剪切模式超声换能器）制成，并通过实验和理论研究其性能。剪切聚合物换能器可用于产生和检测横向超声波。

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