矿用扩音设备结构声学设计方法

Structural Acoustic Design Method for Mine Sound Amplification Equipment

矿用扩音设备结构声学系统包括扬声器的音腔和声道,主要介绍一种矿用扩音设备的内置扬声器及与扬声器相匹配音腔及声道的设计;首先从扬声器的防护性能、额定功率、额定阻抗、频率特性和灵敏度5个参数来介绍扬声器的选型方法,以高保真、高响度和高可靠性为设计目标,对音腔的容积进行计算,最终确定音腔及声道的结构尺寸。

Mine sound reinforcement equipment structure acoustic system including the sound chamber and channel of the speaker, mainly introduces the built-in speaker of a mine sound amplification equipment and the design of matching sound chamber and channel with the speaker. Firstly, the speaker selection method is introduced from the five parameters of the speaker′s protection performance,rated power, rated impedance, frequency characteristics and sensitivity, designed with high fidelity, high loudness and high reliability, the volume of the sound chamber is calculated, finalize the structural dimensions of the sound chamber and channel.