The Physical Construction's Design And Emulate Of The Spark Direct Reading Spectrometer With CCD

With the development of science and technology,more and more metallurgical industry and the fields relate to metallic manufacturing increases requirements to the elemental checking. The spark direct reading spectrometer with CCD was invented and developed to respond to the some of the requirements, it has the basic advantages that other direct reading spectrometer owned: high measurement accuracy and high precision, simple to operate,besides, it can measure the full elemental spectrum of the samples. At present, the spark direct reading spectrometer with PMT doesn't have the function. Objectively, the system very depends on the optical structure and the CCD device. The main optical structure is a Rowland circle, the design of the optics and the physical structure is the main works.Firstly, this article introduces the basic principle and construction of the spark direct reading spectrometer with CCD, then we put emphasis on analyzing the Rowland light path structure: the basic optical element and the mechanical fixture. After the simulation and analysis of light path structure of the Rowland circle by choosing the characteristic lines of Fe?C?P?S elements in a white cast iron to optimize and determine basic parameter of the optical components, on this basis, we make the basic analysis on assembling tolerance and the distribution of the corresponding spectral line, then to determine the parameter of the ideal light path structure. Lastly, the optical structure was simulated and realized by the mechanical designing soft-ware UG, it provide a practical route to the realization of the design. In addition, the assembly error was also analyzed and discussed refer to the UG design and a final measurement is performed to prove the design. All of these provide a visual design reference.