【摘要】 针对激光干涉仪设备短缺及自主灵活性不足等问题,提出一种基于虚拟(增强)现实技术构建虚拟激光干涉仪的方法,该方法以OpenGL和VC++MFC为开发平台,以雷尼绍XL80激光干涉仪的模型尺寸和干涉检测原理进行分析研究。首先,对实际激光干涉仪的激光特性和检测原理进行分析,依据实际模型尺寸,运用纹理映射等技术构建虚拟模型,增强虚拟激光干涉仪的真实感;其次,利用混合着色技术,模拟出该激光的等厚干涉条纹;最后,基于参数控制激光特性的方法,对虚拟激光的特性进行仿真分析;仿真实验表明,该模型能够灵活地将虚拟激光干涉仪亮度、干涉条纹等特性的调控过程以直观、可视的方式呈现出来。与实际实验教学相比,该虚拟仪器不仅解决了设备短缺等问题还增强了学生对激光干涉仪的理解和使用,具有较好的现实意义和推广价值。更多还原

【Abstract】 In view of the shortage of laser interferometer equipment and the lack of autonomous flexibility, a method to build virtual laser interferometer based on virtual(augmented)reality technology was proposed.This method takes OpenGL and VC++MFC as the development platform,analyzes and studies the model size and interference detection principle of Renishaw xl80 laser interferometer.First of all,the laser characteristics and detection principle of the actual laser interferometer are analyzed.According to the actual model size,the virtual model is constructed by using texture mapping and other technologies to enhance the reality of the virtual laser interferometer.Secondly,the equal thickness interference fringes of the laser are simulated by using the mixed coloring technology.Finally,based on the method of parameter control of the laser characteristics,the characteristics of the virtual laser are analyzed.The simulation results show that the model can flexibly display the control process of virtual laser interferometer’s brightness,interference fringe and other characteristics in an intuitive and visual way.Compared with the actual experiment teaching,the virtual instrument not only solves the problem of equipment shortage,but also enhances the students′ understanding and use of laser interferometer,which has better practical significance and promotion value.更多还原