多路单色光源水分测量方法的研究

Study on moisture measurement method by multiplex monochromatic light sources

提出了一种基于多次透射反射积分球单色光源水分测量的方法.利用多次透反射积分球测量水分,可以提高仪器的测量精度.设计出了四种不同波长的单色红外光的发射、检测光路,四个不同单色发光波长的红外光源按照不同的角度放置,使它们发出的单色红外光交叉于被测物的同一点上,达到了同点检测的效果,提高测量的准确性.选择标准单色近红外光源,用此光源可以省去卤钨灯、滤光轮、准直聚焦器、电机等设备,特别是省去了笨重的冷却系统,大大减小了仪器体积,降低了成本.四只单色红外光源采用一个脉冲电源供电,保证其同步工作.

This paper designs the emission and detection optical paths of four monochromatic infrared light with different wavelength.Four monochromatic light sources with different wavelength are placed according to the different angles,so that the four kinds of monochromatic lights are converged on the same point of the sample.Using the method can realize detecting the same point and improve the measurement accuracy.Chooses the standard near-infrared monochromatic light source,because using the light source can save some equipments,such as tungsten-halogen lamp,filter wheel,collimation focalizer,electric machine and so on.In particular,it saves the cumbersome cooling system,reduces the volume of the instrument greatly and reduce the cost.The four monochromatic light sources are supplied by the same pulse power source to ensure their synchronous working.