Procedes d'analyse d'un objet de phase par balayage de son interferogramme

Combination of phase-modulation interferometry and scanning of the object is capable of restoring the sine of the phase everywhere in the object fields. Several processes are able to be employed to scan the object: flying-spot method, use of a vidicon tube or an image dissector tube. These processes are discussed and the problem of the plotting of the informations with a monitor device is studied.