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一、仪器结构1.光路 仪器光路采用单通和双通合一,单色仪和摄谱仪合一的结构,光路系统是典型之字形排列的彗差相消的C-T型,光路主要组成部分为一块全息光栅,两块凹球面反射镜,两个狭缝,一组滤光片,摄谱转向镜和暗盒,以及为达到两次色散(双通)而设置的二块平面反射镜.2.扫描机构 仪器由微机或驱动控制器控制步进电机带动正弦机构实现波长扫描,在自动控制器控制扫描时,通过按键可以进行正常扫描,重复扫描,快速返回及停止等操作功能,改变电阻和用分频方式控制步进电机可得0.05～50nm/分10种扫描速度.
First, the instrument structure 1. Light path instrument using single and double-pass light path, monochromator and spectrograph one of the structure, light path system is a typical zigzag arranged coma aberration of the CT type, the main part of the light path A holographic grating, two concave spherical mirrors, two slits, a set of filters, a spectral turning mirror and a cassette, and two planar mirrors to achieve two dispersion (double pass) .2 Scanning mechanism instrument is controlled by microcomputer or drive controller Stepper motor drives sine wave mechanism to realize wavelength scanning. When the automatic controller controls the scanning, normal scan, repeat scan, quick return and stop operation functions can be performed by pressing the keys to change the resistance and With step-by-step control of the motor can be 0.05 ~ 50nm / min 10 scanning speed.