通过对光电转换电路的前置放大及主放大电路的设计进行研究,使电路完成了光电转换、滤波、降噪等优化处理,实现了将有用信号从噪声中分离出来并放大输出。提高了系统的稳定性和灵敏度。 Through the preamplification of the photoelectric conversion circuit and the design of the main amplification circuit, the circuit has been optimized for optoelectronic conversion, filtering, noise reduction and the like, thereby separating the useful signal from the noise and amplifying the output. Improve the system stability and sensitivity.