On Extension of Functional Possibilities of the Optical Interference Meter of the Surface Displacements of Control Objects

The chapter describes a new design and operating principle of a new optical interference meter for surface displacements of control objects. This meter implements a new contactles measurement method, namely the method of highlighting the control object surface by laser radiation (or the “luminous point” method). It has advanced functionality in comparison with well-known Russian and foreign analogues by providing the ability to measure the spatial (linear and all angular components) displacements of the surfaces of control objects. The results obtained allow us to improve the quality and informativeness of the measurement results. They can be successfully applied in the process of high-precision measurements of spatial displacements of the surfaces of control objects during experimental studies of promising structures, buildings, structures, etc., when assessing their technical condition and diagnosing the condition of both stationary and mobile diagnostic systems, in mechanical engineering, instrumentation, shipbuilding, aircraft construction, etc.