CAJ | 학술논문

提出了一种可产生稳定、均匀的投影空间,并由伺服电机驱动阶梯轴,带动屏旋转的双螺旋屏扫描系统,以实现体三维实时、高清晰成像.对比分析了扫描屏结构的成像特点,设计了屏结构的加工方案.采用半透明高强度的光敏树脂材料和缕空支撑墙体快速成型直接制造.通过Solidworks软件进行螺旋扫描屏的三维建模,并利用COSMOSWorks模块进行稳定运行的可行性分析.仿真结果显示,屏在600 r/min恒速旋转时产生的最大位移数据为0.013 mm,远小于人眼视觉可分辨的范围,可以满足成像空间设计需求.最后,结合现有的工程技术与工艺水平,建立了双螺旋屏扫描系统的物理平台.实验结果表明,该螺旋屏扫描系统形成的25 cm×Ф50 cm的柱型成像空间,可以呈现出清晰的体三维图像.
제출료일충가산생은정、균균적투영공간,병유사복전궤구동계제축,대동병선전적쌍라선병소묘계통,이실현체삼유실시、고청석성상.대비분석료소묘병결구적성상특점,설계료병결구적가공방안.채용반투명고강도적광민수지재료화루공지탱장체쾌속성형직접제조.통과Solidworks연건진행라선소묘병적삼유건모,병이용COSMOSWorks모괴진행은정운행적가행성분석.방진결과현시,병재600 r/min항속선전시산생적최대위이수거위0.013 mm,원소우인안시각가분변적범위,가이만족성상공간설계수구.최후,결합현유적공정기술여공예수평,건립료쌍라선병소묘계통적물리평태.실험결과표명,해라선병소묘계통형성적25 cm×Ф50 cm적주형성상공간,가이정현출청석적체삼유도상.
A sweep system with a double-helical screen whose rotation is driven by a motor is established to produce a steady and unique imaging space to realize real-time and high-resolution volumetric three-dimensional imaging. The imaging characteristics of projection spaces created by swept volume and static volume techniques are compared and analyzed,and the processing schemes of screen structure are designed. Using high strength photosensitive translucent resin materials and a supporting wall structure,the system is manufactured by rapid prototyping and directly digital manufacturing. Furthermore, the three dimensional model of helical sweep screen is established by Solidworks software and the dynamic testing is analyzed by the COSMOSWorks module. The simulation results show that the maximum displacement of screen rotating is 0.013 mm at 600 r/min,which is far less than the visual resolution range of realistic image synthesis, so the projection space based on the helical sweep screen can match imaging requirements. Finally,a system platform is built on the basis of the existing engineering and technological level. Experimental results indicate that the platform can produce a steady projection space (25 cm×Ф50 cm), and can supply excellent volumetric three-dimensional images.