Fringe Projection 3D Shape Measurement Physics Lab Experimental Instrument

This experimental system is designed for the study of projection moiré measurement techniques used in three-dimensional surface analysis and deformation measurement. A reference grating pattern is projected onto the surface of the test object, where surface height variations modulate the projected grating and generate deformed fringe patterns.

The resulting fringe images are captured by a CCD camera and processed using computer-based image analysis techniques. The system enables automatic extraction and evaluation of moiré fringes, allowing users to investigate surface profiles, shape characteristics, and deformation behavior through non-contact optical measurement methods.

Experimental Principles

• Projection moiré measurement
• Three-dimensional surface profiling
• Surface contour analysis
• Non-contact deformation measurement
• Fringe pattern generation and analysis
• Optical image acquisition
• Digital image processing
• Computer-assisted optical metrology

• Surface shape measurement
• Contour and profile analysis
• Deformation studies
• Optical metrology education
• Digital image processing experiments
• Industrial inspection demonstrations
• Research in optical measurement techniques

Light Source :

• Diffuse white light illumination source

Reference Grating :

• Transmission grating

Optical Components :

• Collimating lens
• Imaging lens

Image Acquisition System :

• CCD camera
• 12 V DC power supply

Data Acquisition Module :

• Image acquisition interface card

Supporting Accessories :

• Sliding stages
• Optical bases
• Lens holders
• Mounting and alignment accessories