一种矿用火焰传感器研制

针对现有基于红外检测原理的火焰传感器存在探测距离短、反应时间长等问题,研制了一种基于紫外光检测原理的矿用火焰传感器。通过实验得到了紫外光电管信号调理电路的数学模型,根据该模型得出的电路参数提高了紫外光电管的响应速度;对火焰传感器的供电电源及信号传输电路进行了电磁兼容性设计,提高了火焰传感器的抗干扰能力。测试结果表明,该传感器反应速度快、抗干扰能力强、稳定可靠。

Development of a mine-used flame sensor

For problems of exiting flame sensors based on infrared detection principle such as short detection distance,long response time and so on,a mine-used flame sensor was developed based on ultraviolet light detection principle. Mathematical model of signal modulation circuit of ultraviolet phototube was established through experiments for calculating circuit parameters to improve response speed of the ultraviolet phototube.Power source and signal transmission circuit were designed with electro magnetic compatibility,so as to improve anti-interference ability of the sensor.The test result shows that the sensor has fast response speed,strong anti-interference ability and good stability and reliability.