Key Techniques on Development of Portable UV-Vis Spectrophotometer

Abstract

Several key techniques on development of portable UV-Vis Spectrophotometer are reported in this paper. A miniaturized dispersion system (100*100*50mm3) with the optical fiber slit as the entrance slit is developed based on Hamamatsu array detector S3904 - 1024Q and flat field concave holographic grating. The touch screen is employed as the control and display equipment of the spectrophotometer in place of liquid crystal display and keyboard, the miniaturized fiber-coupled UV-Vis light source is employed as the light source. Calibration of the prototypes show that the new spectrophotometer developed on these techniques is miniaturization in volume (190*170*100mm3), can realize in-situ and multiwavelength detection on-line, is easily handled (touch screen control) and better performance.