高灵敏度、小视场角炮口焰红外触发器的研究

传统红外辐射探测装置的调理电路由场效应管和高阻抗运放组成，探测灵敏度较低、输出不稳定且场效应管极易损坏，对红外辐射探测装置的可靠性带来负面影响，从而影响到弹药、武器系统的正常测试。本文采用运算放大器作为调理电路，使用带有瞄准具的小视场光学系统并整体设计红外辐射探测装置。采用差分信号输出，提高长距离传输脉冲信号能力，方便后续处理及直观观察，同时也有效提高了探测装置的灵敏度，抗干扰能力强、轻巧、适用于各种环境。

Study on muzzle flame infrared trigger with high sensitivity and small field angle

The regulating circuit of traditional infrared radiation detection device is composed of field effect tube and high impedance op amp.It has low detection sensitivity,low output instability and the field effect tube is easy to be damaged.That makes a negative impact on the reliability of infrared radiation detection devices,thus affecting the normal test of ammunition and weapon systems.In our design,the operational amplifier was used as a regulating circuit,and small field of view was adopted.Differential signal output can improve the transmission capability of pulse signal at a long distance,and make it easy to the following treatment and intuitive observation.That effectively improves the sensitivity of the detection device.The system has strong anti interference ability and good adaptability.