Design And Development Of Laser Facular Measurement And Control System

Around the problems such as bad precision and low efficiency in the process of laser facular parameter measurement, this article provides a method of using CCD sensor as laser facular image acquiring device which work with image acquiring card, GPS, energy detectors and synchronization controlling circuit, computer, aimed to capture the information of laser pulses with a certain frequency. Software is designed to complete functions of saving, displaying and analysis information of image, GPS and energy to measure laser and compute laser's parameter.This paper includes the following research contents mainly:1) By analyzing laser characteristics and optic image principle, completing the hardware selection and designing a hardware system.2) Because the laser pulses have the characteristics of a certain frequency, the paper solves the problem of synchronization between laser pulse and camera with measurement method to capture whole images, restrains background noise and assures the image of best effect.3) Based on the fact of laser facular measurement, analysis of the relationship between hardware parameter and its performance and measurement method, set the devices and assure the veracity of output information.4) Program to control CCD camera, image acquiring card and energy detector, and carry out the functions include acquiring information of image gray, energy information, GPS time, the information displaying and storage.5) Program to process image and compute parameters of laser facular such as center of mass and gravity.6. Research the CCD image method more deeply and analyze the resource of error.In addition, there is a most characteristic that the paper is fully considering of the effect to precision from noise from design of acquiring method, hardware parameter settings to image processing.