{"title":"Theoretical study and experiment on frequency characteristics of a probe microphone","authors":"K. Yunoki, Y. Tanaka, T. Yoshino, H. Hirakawa","doi":"10.1109/SICE.1999.788593","DOIUrl":null,"url":null,"abstract":"A probe microphone has a thin, empty and long probe tube. Therefore, frequency characteristics of a probe microphone are not good. In this paper, we analyze a probe microphone constructed by a probe, a spacer and a regular microphone. In this microphone, the sound wave is attenuated by viscosity of air. So, sound solution is given with the attenuation constant /spl delta/ and the phase constant K. As a result, frequency characteristics of a probe microphone were obtained for the size of the probe tube, /spl delta/ and K. In the experiment, applying a white noise or a rectangular signal to the speaker,sound from the probe microphone was compared with that of the regular microphone. Experimental results agreed well with the theoretical ones.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"132 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SICE.1999.788593","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A probe microphone has a thin, empty and long probe tube. Therefore, frequency characteristics of a probe microphone are not good. In this paper, we analyze a probe microphone constructed by a probe, a spacer and a regular microphone. In this microphone, the sound wave is attenuated by viscosity of air. So, sound solution is given with the attenuation constant /spl delta/ and the phase constant K. As a result, frequency characteristics of a probe microphone were obtained for the size of the probe tube, /spl delta/ and K. In the experiment, applying a white noise or a rectangular signal to the speaker,sound from the probe microphone was compared with that of the regular microphone. Experimental results agreed well with the theoretical ones.
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