1993•Japanese Journal of Applied PhysicsRequires access

Anomalous Directivity of a Piezoelectric Polymer Film Hydrophone

Yasuhiro Nakamura, T. Kawabata, Takahiko Otani Takahiko Otani

Abstract

An irregular phenomenon that arises in the directivity characteristics of a hydrophone utilizing a piezoelectric polymer film as an active element is studied. At the radial resonant frequency of a Rayleigh-type surface wave induced on the hydrophone's backing material, a sharp null in the directivity characteristics is observed, as if the hydrophone apparently has a narrow directivity pattern. This irregularity is shown to be caused by the interference between an incident wave and a Rayleigh-type surface wave induced on the backing material.

About this research paper

What this paper is about

Why it matters

OpenAlex reports 7 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Hydrophone, Directivity, Acoustics, Piezoelectricity, Materials science, Rayleigh wave, Rayleigh scattering, Interference (communication)