基于激光干涉的语音内容解析装置研制  

The design of a michelson interference based device for voice analysis

作　　者：梁佩莹[1] 叶嘉权 王瑶[1] 曹辉[1] 王宇华[3] 

机构地区：[1]佛山科学技术学院光信息工程系,广东佛山528000 [2]暨南大学光电工程系,广东广州510632 [3]佛山科学技术学院机电工程系,广东佛山528000

出　　处：《佛山科学技术学院学报（自然科学版）》2017年第5期10-15,共6页Journal of Foshan University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(61275214);2014年度国家级大学生创新训练资助项目(201411847017);2014公益研究与能力建设专项资金资助项目(2015A010103017)

摘　　要：基于迈克尔逊干涉的原理,以氦氖激光器作为光源,结合光学透镜系统,设计出一种新型语音解析装置。装置的光路设计以迈克尔逊干涉仪为基础,激光束经分光镜作用后形成参考光和测量光,测量光经过焦距可调的光学透镜组聚焦到被监测区域的窗户玻璃上,室内的声音引起玻璃的振动,从而经玻璃反射回来的测量光携带室内的语音信息。参考光与测量光在光电传感器的光敏面上实现干涉,室内声音的变化将会引起干涉信号的变化。通过计算机程序对光电传感器输出信号进行采集,并还原出室内语音信息的内容。Based on the principle of Michelson Interference, with He-Ne Laser device as the light source,combining with an optical system, a new voice analytical device is designed. The light path design is based on Michelson interferometer and after passing through the spectrometer, the laser will be divided into the reference light and the measurable light. The measurable light, after passing through an adjustable focal optical system, will be focused on the window which covers the target zone where interesting voice are generating. The voice inside this zone causes vibrating effect on the window which modulates the measurable light which will be reflected back to the device side by the window. Consequently, when the reference light and the reflected measurable light which carries interesting voice information mixed together by interference on the sensing surface of a photosensor which is a part of the device, the mixed light will be effected by the interesting voice as well. Measuring the mixed light by measuring the output of the photosensor, the original voice from the target zone could be restored.

关 键 词：语音内容解析 迈克尔逊干涉 光电传感器 

分 类 号：TN24[电子电信—物理电子学]