Optoelectronic vibration measurement system

Described are results of creation and application of an optoelectronic system, which is based on a principle of oscillation measurements using optical image of the object. Presented are results of mathematical modeling of the system´s main parts functioning. Also presented are results of application for vibration testing of aviation engine blades; for rotors´ balancing; for vibration testing of aviation turbine coolers; for vibration measurements of elements of printed circuit boards in electronic devices; for various parts of constructions; for acoustic loudspeakers; for optically-active objects (which emit light themselves). Also discussed are results and possibilities of application in automotive industry; for distant measurements (hundreds of meters); and for some medical applications. Discussed are investigations of errors compensation. These errors take place because various objects have different size and shape, and they emit or reflect different amount of light. Without using of compensation the total error would be about hundreds of percent. So all 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. During design and construction it was provided that the system can be applied for indoor and outdoor conditions. Special climatic testing has confirmed that. The system incorporates build-in block for self-testing.