红外光幕靶信号采集与调理电路设计

Design of signal collection and conditioning circuit for infrared light-screen target

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To improve the accuracy and stability testing of light screen, a new adjustment circuit of infrared light-screen target are designed. The paper describes the principle and design methods of adjustment circuit of infrared light-screen target are designed in detail. The launch part of the system design used constant current source circuit connection to improve the stability of the light screen ,the amplifier part used a three-amplifier circuit,easily follow-up to the circuit processing. The experimental results show that the system of live-fire test ranges to less than 1% accuracy. Compared with photoelectric detection system in the past, the stability and accuracy were improved obviously.