描述了一种使用显微栅线投影技术和数字图像相关技术同时测量微结构三维形貌和变形的光学测量系统。在此系统中，正弦栅线通过相移投影器投影到被测物体表面，变形的条纹图由高分辨率的CCD相机和显微镜头采集并保存。相移技术处理条纹图得到形貌和离面变形，同时从相移图像中提取出被测物表面纹理，数字图像相关技术处理变形前后表面纹理得到面内变形。此系统为微结构光学测量提供了一种有效的手段。作为微结构力学性能测试的一个应用，系统测量了纸浆模塑材料在单向拉伸时在微小局部区域的力学行为。

An optical measurement system for simultaneous 3D surface profile and deformation measurement of micro-components is presented by using microscopic fringe projection and digital-image correlation technique. In the system, sinusoidal fringes are projected on the surface of the specimen by a grating phase shifting projector. The deformed fringe patterns are captured by a high-resolution CCD camera and a microscope. The images are processed with phase-shifting technique. The intensity of the specimen′s background before and after deformation obtained by adding the phase-shifting images are processed by digital-image correlation technique. This system will be useful for optical measurement of micro-structure. As an application, the system is used to investigate the mechanical behaviors of molded pulp material in micro-zone during tension testing.