Title :
Intelligent system for optoelectronic surface vibration testing
Author :
Simonov, Vladimir L. ; Kuzin, Alexander V.
Author_Institution :
Inf. Syst. Dept., Moscow State Social Univ., Russia
Abstract :
Described are results of creation and application of an optoelectronic system, intended for measurements of field of vibrations of objects with complicated surface structure. Principle of vibration measurements is based on displacement measurements of an optical image of the object. Discussed are investigations of errors compensation, which take place because of variations of objects\´ size and shape, as objects usually emit or reflect different amount of light. Without using of compensation the total error would be about hundreds of percent. This is why all kinds of measurement errors were analyzed, classified, mathematically modeled and there were created special loops for errors compensation. As a result total error of measurement was less that 15% for all conditions of practical usage. In this paper presented also are results of implementation of half-automatical algorithm for adaptation to different kinds of objects during scanning of the object\´s surface. Discussed are principles of classification of various types of "light functions", specific for various types of objects.
Keywords :
displacement measurement; dynamic testing; measurement errors; optical images; surface dynamics; surface structure; vibration measurement; complicated surface structure; displacement measurement; errors compensation; intelligent system; light functions; mathematically model; measurement errors; optical image; optoelectronic surface vibration testing; optoelectronic system; vibration measurement; Displacement measurement; Error analysis; Error compensation; Intelligent systems; Measurement errors; Shape; Stimulated emission; Surface structures; System testing; Vibration measurement;
Conference_Titel :
Instrumentation in Aerospace Simulation Facilities, 2003. ICIASF '03. 20th International Congress on
Print_ISBN :
0-7803-8149-1
DOI :
10.1109/ICIASF.2003.1274860