{"title":"用光直接探测声波","authors":"Y. Sonoda, T. Nakamiya","doi":"10.1109/GCCE.2014.7031109","DOIUrl":null,"url":null,"abstract":"Optical wave microphone is a novel method to measure audio and ultrasonic sounds by a laser beam with no diaphragm. In this method, ultra-weak diffraction light generated by sound is optically Fourier transformed and converted into an electrical signal. In this study, in order to improve the S/N ratio for practical use, the external resonator structure of He-Ne laser is used as a sound sensor and the sound signal amplification property is theoretically and experimentally examined. We succeeded in sound signal amplification by this method.","PeriodicalId":145771,"journal":{"name":"2014 IEEE 3rd Global Conference on Consumer Electronics (GCCE)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Direct detection of sound wave by light\",\"authors\":\"Y. Sonoda, T. Nakamiya\",\"doi\":\"10.1109/GCCE.2014.7031109\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Optical wave microphone is a novel method to measure audio and ultrasonic sounds by a laser beam with no diaphragm. In this method, ultra-weak diffraction light generated by sound is optically Fourier transformed and converted into an electrical signal. In this study, in order to improve the S/N ratio for practical use, the external resonator structure of He-Ne laser is used as a sound sensor and the sound signal amplification property is theoretically and experimentally examined. We succeeded in sound signal amplification by this method.\",\"PeriodicalId\":145771,\"journal\":{\"name\":\"2014 IEEE 3rd Global Conference on Consumer Electronics (GCCE)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2014 IEEE 3rd Global Conference on Consumer Electronics (GCCE)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/GCCE.2014.7031109\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 IEEE 3rd Global Conference on Consumer Electronics (GCCE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/GCCE.2014.7031109","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Optical wave microphone is a novel method to measure audio and ultrasonic sounds by a laser beam with no diaphragm. In this method, ultra-weak diffraction light generated by sound is optically Fourier transformed and converted into an electrical signal. In this study, in order to improve the S/N ratio for practical use, the external resonator structure of He-Ne laser is used as a sound sensor and the sound signal amplification property is theoretically and experimentally examined. We succeeded in sound signal amplification by this method.