An automated measurement method for 360 degrees surface topography of 3-D diffuse objects is presented. The method is based on the simple principle of triangulation with structured illumination. The geometric specifications of the structured light module used in the system are analyzed on a computer. Using an advantageous data acquisition schedule, high data acquisition rates and measuring accuracy can be achieved. The system comprises a structured lighting projector, a 2-D detector array, and a microcomputer for control and processing. Experimental results for 3-D objects are offered.

Nanostructures of three new cobalt(II) complexes, (CoL)·0.5DMF·1.5MeOH (1), [HL=5-(4-Carboxy phenyl azo) anthranilic acid], (Co(L))·1.5MeOH (2), [HL=5-(4-Carboxy phenyl azo) salicylaldehyde] and (Co(L))·0.5DMF·0.5MeOH (3), [HL=1-(4-Carboxy phenyl azo) 2-naphtol], have been synthesized by the reaction of HL, HL and HL with Co(OAc)·4HO through sonochemical process. Calcination of the nano-sized compounds 1-3 yield CoO nanoparticles at 450°C under air atmosphere. These nanostructures were characterized by X-ray powder diffraction (XRD) and Scanning Electron Microscopy (SEM). Thermal stability of compounds 1-3 was studied by thermogravimetric (TG) and differential thermal analyses (DTA).

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