一、引言最近两年,在日本出现了一种平面驱动振动板扬声器(简称平板扬声器)。顾名思义,平板扬声器就是一种声辐射面是一块平板的扬声器(图1),而以往的扬声器中,其声辐射面大多是一片锥形振膜(俗称锥盆),或是球顶形的振膜。这种平板扬声器是怎样出现的呢?它有什么特性?都有哪些类型?下面就简要介绍一下。二、平板扬声器诞生的背景由于电子技术的进步,目前,音频放大器、电唱机、盒式录音机等都有了飞跃进步,相形之下,扬声器却没有什么明显的变化。因此,可以说,在目前的音响设备中,扬声器是最薄弱的一个环节。然而,到了最近几年,随着其它学科的 I. INTRODUCTION In the recent two years, a plane-driven diaphragm loudspeaker (referred to as the flat panel speaker) appeared in Japan. As the name implies, a flat panel speaker is a flat panel speaker with a sound-radiating surface (Fig. 1). In conventional loudspeakers, the sound-radiating surface is mostly a conical diaphragm (commonly known as a cone) or a dome- membrane. How does this flat-panel speaker appear? What are its features? What types are there? The following is a brief introduction. Second, the background of the birth of flat-panel speakers As electronic technology advances, at present, audio amplifiers, record players, cassette recorders have made leaps and bounds, in contrast, the speaker did not have any significant changes. Therefore, it can be said that in the current audio equipment, the speaker is the weakest link. However, in recent years, along with other disciplines