Multi-axis Linkage Online Dynamic Optical And Spectral Detection System Research

The system is using the principle of optical rotation effect and the spectral analysis theory, design a set of optical detection system and spectral detection system combining optical cage system. The samples of the chiroptical properties and spectral characteristics of the online dynamic synchronous detection, and to determine the concentration of the sample to be tested and composition. The system using SolidWorks software for multi axis cage type on-line dynamic optical and spectroscopic detection system for 3D solid modeling, three-dimensional visual see system model, but also facilitate the design and improvement of the system.The This design is by the online dynamic optical detection system, the traditional optical detection system and spectral detection system. This system can not only chiroptical properties of the samples, and can simultaneously analyze the spectral properties of the samples. Specific work of the whole system design content mainly has four parts:1. The design of optical detection system. Optical detection system is of two parts. One part is the traditional optical detection system, the other part is the online dynamic optical detection system. The traditional optical detection system is through the light emitted from the light through the mirror incident to the traditional optical detection system. The polarizer will become polarized light reflection from the beam into the sample. Shooting the light incident to the polarizer rotation platform from the sample. Then enter the high-speed photodetector. The photoelectric detector to convert light into electrical signals. Finally, oscillograph voltage. By rotating platform rotating polarizer and the voltage value generated by the sample and no samples of the same value. The voltage of rotating platform polarizer turning angle control panel for recording Labview software, then the angle difference is the core device of on-line dynamic rotation. Optical detection system is azimuthally polarized Radiographs. Angle to polaroid is without the need for manual rotation can be detected sample solution of optical rotation changes, thus reducing the mechanical error, from the angle to the polarizer out shootthe light can receive effective CCD detector, and on the computer specific software can visually see image. Using MATLAB software for image processing to calculate the rotation. Using concentration formula can calculate the analyte solution concentration. Through the traditional optical detection system and on-line dynamic optical detection system measured degrees of rotation of the rotation of the sample and standard data contrast. Through the experiment can instrument to determine on-line dynamic state optical detection system and more accurate.2. Spectrum detection system is designed. This system is by the broadband light source, optical fiber probe and the ocean optics usb4000 miniature fiber optic spectrometer. Light transmitted through the optical fiber to the solution, then through the solution of the light again the coupling transmission optical fiber to the spectrometer. Lastly it uses the computer to polish spectrum software dynamic real-time observation of the spectra of the samples. The detection of the spectra with the standard functional spectra were compared to the sample composition analysis.3. Combine the optically active optical detection system with spectral detection system is built up. Using multi axis optical cage type structure to build the system. The system mainly adopts dual channel than in the cuvette holder of the traditional optical detection system, on-line dynamic detection system and spectral detection system is built up. The whole body of space structure is a "cross" shape. The whole system can share a colorimetric dish, and does not interfere with the synchronous experiment. The optical properties and spectral characteristics of common detection system. The cage structure characteristics is to optimize the system space, visual results, visual system structure and device miniaturization, easy to operate, save test time and reduce the cost.4. Experiments of optical detection system and spectral detection system. With traditional optical detection system and on-line dynamic optical detection system detection optical polarimetry. Through this experiment proved that online dynamic optical detection system accuracy than traditional optical detection system of high accuracy, so it can be used online detection system of the dynamic optical and spectral detection system together to detect glucose solution concentration and spectral characteristics.This design is at home and abroad for the first time on chiroptical properties and spectral characteristics of common detection and real-time dynamic observation data; the online dynamic optical detection system is at home and abroad for the first time without any mechanical rotation can be arbitrary testing samples of the chiroptical properties. Online dynamic optical and spectral detection system can be application in medical drug testing, food safety testing, research and teaching institutions.