微型扬声器电声参数测量用消声箱

Anechoic chamber for electric-acoustic parameter measurements micro-speakers

微型扬声器单元电声参数的测量可用半消声箱,它可避免在"标准障板"上测试时带来的绕射误差。手机等设备用微型扬声器整机电声参数的测试,可在全消声箱中进行。给出了这种半消声箱和全消声箱的设计参考。

The electric- acoustic parameter measurements of micro- speakers unit can be obtained by using the semianechoic chamber, which can avoid the diffraction error of the ＂standard baffle＂ .The electric-acoustic parameter measurements of the devices with buih-in micro loudspeaker can use the anechoic chamber. This paper provides a reference of designing such semi-anechoic chamber and anechoic chamber.