一种用于在0.5兆赫至15兆赫范围内工作的聚偏二氟乙烯薄膜水听器。

A pvdf membrane hydrophone for operation in the range 0.5 Mhz to 15 Mhz.

作者信息

Shotton K C, Bacon D R, Quilliam R M

出版信息

Ultrasonics. 1980 May 3;18(3):123-6. doi: 10.1016/0041-624x(80)90025-6.

Abstract

A new form of hydrophone for measuring the spatial and temporal distributions of pressure within the fields from medical ultrasonic equipment is described. The device comprises an acoustically transparent plastic membrane with a small, central region activated to provide a freely-suspended piezoelectric element. This form of detector offers several advantages over conventional hydrophone probes employing ceramic elements, in particular a flat frequency response. The performance characteristics of a prototype membrane hydrophone and some possible developments and applications are described.

摘要

本文描述了一种新型水听器，用于测量医用超声设备声场中压力的空间和时间分布。该装置包括一个声学透明的塑料膜，其中心有一个小区域被激活，以提供一个自由悬挂的压电元件。与采用陶瓷元件的传统水听器探头相比，这种形式的探测器具有几个优点，特别是具有平坦的频率响应。本文还描述了原型膜式水听器的性能特征以及一些可能的发展和应用。