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基于PSD传感器的激光语音还原系统电路设计

更新时间:2020-08-09 01:39:12 大小:222K 上传用户:zhiyao6查看TA发布的资源 标签:psd传感器 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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针对目前激光语音恢复电路的精度低、滤波不完全等问题,采用PSD位移传感器设计了一种激光语言还原系统电路。该电路包括基于PSD的光电转换电路、流压变换电路和差分放大电路三部分。通过分析PSD工作原理及特性参数,设计并讨论了流压变换电路及放大电路的性能.实现了微弱信号的低噪声放大。经过实验验证,该电路可在距离障碍物2~3m处清晰地还原出被隔离的室内语音信号。

A voice recovery circuit system based on PSI) sensor is designed in this paper ,contrary to low accuracy and incom- plete filtering of current laser voice recovery circuit. The system includes a photoelectric conversion circuit which is based on PSD, current voltage converting circuit and a differential amplifying circuit. Low noise amplification of weak signals is realized by analyzing operating principle and characteristic parameters of PSD and discussing performance of current voltage converting circuit and a differential amplifying circuit. Experimental results show that the system can clearly restore the speech signal outer 2-3 m away from the obstacle.

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基于PSD传感器的激光语音还原系统电路设计.pdf 222K

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