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Information × Registration Number 0221U104950, 0121U109238 , R & D reports Title Designing a multi-beam laser heterodine displacement meter for measuring nano- and micro displacement and deformation on various types of surfaces. popup.stage_title Head Serozhkin Yurii Н., Registration Date 27-04-2021 Organization VE Lashkarev Institute of Semiconductor Physics of the National Academy of Sciences of Ukraine popup.description2  The aim of the work is to develop a multi-beam model of a laser meter of displacements of surfaces of mechanical and biological macro-objects, including the possibility of measuring short-term displacements due to pulsed impact on the object. Much of the application of laser vibrometry is related to the need to record the movements of several points on the surface, ie, to obtain a so-called acoustic portrait of the object. This problem is solved either with a single-beam laser vibrometer that scans the surface of the object, or multi-beam devices that allow simultaneous measurement of the movement of many points on the surface. The result of the project was the manufacture and study of a 6-beam model of a laser displacement meter. The frequencies of the rays probing simultaneously at different points on the surface differ from the local oscillator frequency by 7, 8, 9, 10, 11, 12 MHz, ie we have phase-modulated signals at these frequencies. Further processing is performed using a 6-channel information converter AD6654. It is planned to use multi-beam devices to diagnose and control the parameters of navigation devices (for example, the spatial stability of the axis of sensitivity of laser gyroscopes and accelerometers). In the field of medicine, the use of multibeam laser meters will control the speed of propagation of nerve impulses, which is necessary in the development of a new neurosurgical technique for the restoration of affected nerves in humans and animals. Product Description popup.authors popup.nrat_date 2021-04-27 Close