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1. Presents the implementation of diffraction and spectral analysis methods allowing 1μm resolution enhancement of optical instruments intended for measurements of such round wire materials as cables, wires, cords, etc. with diameters exceeding the wavelength (0.5 mm and large). The transformation function suggested allows detecting geometrical boundaries of object's shadows that are used to calculate its diameter independently from its location in the gaging zone. The real-time detection algorithm is described for diffraction extreme values in the analog video signal produced by the charge-coupled device sensors. A method of additional improvement of resolution is shown on the basis of spectral analysis. 2. Presents a three-dimensional method of measuring diameter and ovality of cylindrical objects in diverging laser beam. Mathematical software method is developed. Virtual simulation of this method and experimental testing are made. The results can be used for design and manufacture of optical devices, which will be used for technological control of external diameter of cable, wire, trumpet and other products.
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Расписание
