空气声高声压的激光活塞法溯源技术研究  

Research of Air Borne High Sound Pressure Calibration by Laser Piston Method

作　　者：张炳毅[1] 付强[1] 郑爱建[1] 徐佳[1] ZHANG Bingyi;FU Qiang;ZHENG Aijian;XU Jia(Changcheng institute of Measurement and Metrology,Beijng 100095)

机构地区：[1]航空工业北京长城计量测试技术研究所,北京100095

出　　处：《计测技术》2021年第2期130-134,共5页Metrology & Measurement Technology

基　　金：国家“十三五”技术基础科研项目(JSJL2016205A011)。

摘　　要：目前空气声高声压的溯源存在空白,基于激光-活塞发声器法,采用激光直接测量高声压下活塞振速的方法进行研究,实现了180 dB下高声压的溯源,并通过试验验证了理论公式和结果的一致性,为高声压的绝对溯源提供了技术方法,保障了高声压量值的准确可靠。There is no research on the traceability of airborne high sound pressure calibration currently.Based on laser piston-phone method,this paper studies the method of using laser to directly measure the vibration velocity of the piston under high sound pressure,and realizes the traceability of airborne high sound pressure up to 180 dB.Experiment results show the good coherence to theoretic formulas.It can support the traceability of airborne high sound pressure calibration and provides accurate value to high sound pressure metrology.

关 键 词：计量学 空气声 高声压 溯源 绝对法 

分 类 号：TB95[一般工业技术—计量学]