A digital simulation shadow moiré techniques is proposed that includes the auto-design of arrangements for shadow moiré instruments and the auto-production of shadow moiré fringe patterns by computer, based on the concept of the virtual shadow moiré field.

On the basis of a virtual moiré principle of shadow moiré profilometry,full-filed shadow moiré fringe patterns were simulated at different optical field and a digital phase-shifting shadow moiré profilometry simulation arrangement was established in combination with the phase shifting technique.

A new experimental system of the digital simulation shadow moiré profilometry is also built up, which can not only be used to reconstruct profiles of object surface efficiently, but also be used as an error analysis and evaluation system.

A new digital shadow moir method with digital phase-shifting based on liquid crystal display (LCD) projector is presented.

and from this leads out the deflection equation,and from shadow cloud methords we have messured the deflection curve of periphery fixed carbon/epoxy and normal anisotropic vertical and even distributed load,and we have compared it with its curve of theory.

Begins from equilibrium differenfial equation,and from shadow cloud methords we have messured the deflection curve of periphiry fixed carbon/epoxy and normal anisotrop-ic and EXCEPTED Concentrate force and we have compared it with its curve of theor