A soft- and hardware realization of optoelectronic intellectual sensor for biomedical noninvasive studies based on the
analysis of light reflected from living tissues has been described. The main feature of the developed model is use of an
adaptive cross-correlation detector controlled by the digital signal processor. Algorithms and operating mode of detector
are defined by the type of particular problem to be solved and conditions of measurements. The proposed model was
tested to identify dynamic signals in the following areas: pulsometer, evaluation variability of the cordial rhythm,
evaluation of blood saturation by oxygen.
IR absorption spectra of urea, urine without any deviation in composition and kidney oxalate
calculi are studied. The shifting of stretching vibrations of carbonyl group C=O confirms that assert that the joining of
calcium oxalate molecules and oxalate complexes join to urea molecules via oxygen atom of urea. The shifting of COOsymmetric
stretching vibration frequencies may testify the presence of molecules and aggregates of calcium oxalates.
Obtained results may be useful in developing new methods in early diagnostics of different diseases.
The thermally stimulated luminescence (TSL) of normal and pathological urine was studied. The presence of
pathological salts leads to extinguishing of TSL intensity and to the appearance of additional stripes with maxima nearly
118 and 205K, except of characteristic stripes with the maxima nearly 173 and 260K. TSL stripes depend on urine
constituents. The comparison of TSL intensity of normal and pathological urine is carried out and energies of thermal
activation are determined for most intensive TSL stripes.
Photoexcitation and luminescence spectra of dried urine sample under laser excitation were studied. Luminescence spectra of urine are determined by luminescence of urea which is the main component of urine. The presence of pathological salts in urine leads to the long-wave shifting of maxima of luminescence and to the decreasing of luminescence intensity.