本实用新型属于电学技术领域，具体讲涉及光电倍增管微弱信号处理电路。
The utility model pertains to the technical field of electricity, in particular relates to a processing circuit for weak signals of a photoelectric multiplier.
设计实现了基于差分后谐波检测的微弱信号处理电路、前置放大电路、差分电路、调制电路和光源温度控制电路及电流驱动电路等。
The circuit of Photoelectricity Weak Signal Detection, preamplifier circuit, difference circuit, modulation circuit, optical source thermal control and current drive circuit etc. are designed.
检测器内部的前置放大器将微弱的电场信号放大后，送报警器进行比较处理。
Detector internal preamplifier after weak electric signal amplification, comparing to send alarm processing.
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