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该号笛由两部分组成,即音室与振膜组成的策动系统、指数形号筒与双曲形号筒组成的复合式声传输及声辐射号筒。本文对其声策动系统和复合式号筒作了理论分析,建立了力—声类比线路图。根据国家海船信号设备规范的技术标准计算并选定了号笛各部分的尺寸。最后制成适宜无机械动力船只使用的音响信号器具。
The whistle consists of two parts, namely the sound system and the diaphragm consisting of a system of motion, the index number and double hyperbolic horn composed of composite sound transmission and sound radiation horn. This paper makes a theoretical analysis of its acoustic actuation system and compound horn, and establishes a force-acoustic analog circuit diagram. According to the national sea signal equipment specifications of the technical standards and selected the size of the various parts of the flute. Finally made suitable for mechanical power vessels without the use of audio signal equipment.