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介绍了光声光谱仪与PC机联接组成的光声光谱数据采集和控制系统。系统硬件包括放大器、模数转换器和微机。该系统具有采样速度快、分辨率高、数据处理方便等特点。同时运用小波分析方法对光声光谱信号进行滤噪处理，可以改善信噪比和检出限，特别有利于弱信号的检出和重叠峰的分离。最后列举了应用实例。
The photoacoustic spectroscopy data acquisition and control system consisting of a photoacoustic spectrometer and a PC is introduced. System hardware includes amplifiers, analog-to-digital converters and microcomputers. The system has a sampling speed, high resolution, data processing convenience and so on. At the same time, using wavelet analysis method to filter the photoacoustic spectrum signal can improve the signal-noise ratio and the detection limit, especially for weak signal detection and overlapping peak separation. Finally cited the application examples.