电容传声器静电激励法频响的一种测量方法

Method of Frequency Response Measurement for Condenser Microphones

电容传声器的频响测量是经常要用到的,但以往测量设备复杂,效率低。本文首先参照JJG 175–2015静电激励法检定规程,给出了一种扫频测量传声器频响的方法,然后提出了该方法的一个具体实现方案,并对其准确度做了评估验证。该方法在保证测量精度的同时,精简了设备,并大大提高了测量效率。

Frequency response measurement of condenser microphones is needed widely and frequently, but the measuring equipment is complex and inefficient. This paper introduces a frequency-sweeping measurement method for frequency response according to the JJG 175-2015 Verification Regulation of Working Standard Microphones（Electrostatic Actuator Method）. The specific implementation of the methodology is presented, and the accuracy of the measurement system is evaluated as well, which shows that this method can not only ensure the measurement accuracy, but also simplify the equipment and improve the measurement efficiency.