| 其他摘要 | The 1 Meter Solar Telescope is an altitude-azimuth telescope, it’s field of view is 3 '× 3'. It is required to do slit scanning by controlling the M6 mirror. In order to obtain two-dimensional spectrum of the imaging, it need to do the slit scanning control system. First, some major components used in th slit scanning control system are introduced in this thesis, then the system’s overall structure and the methods for accomplishing the system are introduced in this thesis, and it illuminates several parts of the system. Then it tells of the mathematic model of the system, and the results of the calculation by two methods are consistent. In fact, the system has mechanical equipment, and the mirror is thick, so it do the correctional calculation about the influence of the mirror’s thickness and the mechanical equipment. Based on the mathematic model has founded, it analyses the requirement about the main components and gives out the effects on the system from some parameterst. Followed the designs of the software and the hardware about the system are introduced. In the system, the voice coil motor is used for the executive component, and in this thesis, it recounts the principle and the selecting of the voice coil motor. The driving circuit of the voice coil motor and the simulation results are given out in this thesis. In the system, the Position Sensitive Detector(PSD for short) is used for the detecting component, it recounts the principle of the PSD, and the signal processing circuit of the PSD and the simulation results are given out. In this thesis, it also tells of the PID control algorithm’s principle、algorithm and parameter’s setting, and it gives the flow charts of the software for the system. Finally, it shows the experiment’s debugging process of the slit scanning control system, and gives the preliminary testing results of the circuit, as well as the preliminary findings of the software and hardware’s combined debugging. It summarizes the experiment, and outlines the work plan for the next step. After the thorough theoretical analysis, and the preliminary experiments, the slit scanning control system is able to achieve. |
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