3.5 Results and Conclusions
289
of holographic recording of object waves. These methods give the possibility to
estimate not only the height, but also the relief direction of the surface under study.
Holographic multi-beam surface relief contouring methods were developed,
which are based on the analysis and usage of the polarization characteristics of
reference and object light waves. One of such methods requires implementation
of the source, which generates at several wavelengths, and the other one—several
immersions with different refraction indices, which differ at the same value. Implementation of these methods gives the possibility to double the spatial resolution, i.e.,
the sensitivity of the measurements.
In the result of theoretical and experimental research during studying vertebral
pathology, the projection double-raster moiré method of surface relief contouring was
developed and was suggested for usage. The experimental processing of this method
was conducted on the model objects and a human. In particular, the experiments on
the usage of moiré contouring methods were conducted to get the full 3D image
of physiological curvatures of human spine. There were given examples of moiré
topographic maps of the dorsal surface of human body.
The obtained results of construction of 3D surface form according to the maps
prove the possibility of estimating the value of spine curvature. In the result, it was
established that the moiré method under corresponding adaptation and improvement
can be used for determination of spine curvatures and study of pathological processes,
which are connected with such curvatures.
In one of the dye laser modes, the multifrequency one, there were obtained holographic contoured maps of the relief of 3D objects according to the colliding beams
scheme. It was shown that while using this holographing scheme (unlike the inclined
reference beam scheme) the defects are eliminated, which are connected with the
hologram dispersion, for example, contours distortion, localization of bands at a
significant distance from the surface under study.
2. For the first time in collaboration with dentists, a complex experimental–
clinical study was conducted concerning deformations, which occur under functional overloads of the upper and the lower human jaws. The study gives the possibility to make a firm conclusion about good prospects of usage of holographic and
speckle-interferometry methods in dentistry.
A special interest we, experimenters, pay to the study of movable living objects.
For these purposes, the pulse ruby laser was developed and produced, which generates
double monopulses with tunable time interval between them. The recording method
of living object holographic interferogram was perfected. Using the double-pulse
holographic interferometry method, the interferogram of strained hand muscles with
interval between pulses of 100 μs was obtained. These preliminary holographic
experiments gave the possibility to come close to the creation of the holographic
cardiograph for studying the functional state of the cardiovascular system.
3. Holographic methods of study of human chest shifts as well as optical schemes
for their realization were developed. These holographic methods allow obtaining
information about shifts of surface points of the human chest, which are caused
by mechanical waves appeared during heart contraction and blood flow pulsation.
They give the possibility to qualitatively estimate the value and the direction of the
289
of holographic recording of object waves. These methods give the possibility to
estimate not only the height, but also the relief direction of the surface under study.
Holographic multi-beam surface relief contouring methods were developed,
which are based on the analysis and usage of the polarization characteristics of
reference and object light waves. One of such methods requires implementation
of the source, which generates at several wavelengths, and the other one—several
immersions with different refraction indices, which differ at the same value. Implementation of these methods gives the possibility to double the spatial resolution, i.e.,
the sensitivity of the measurements.
In the result of theoretical and experimental research during studying vertebral
pathology, the projection double-raster moiré method of surface relief contouring was
developed and was suggested for usage. The experimental processing of this method
was conducted on the model objects and a human. In particular, the experiments on
the usage of moiré contouring methods were conducted to get the full 3D image
of physiological curvatures of human spine. There were given examples of moiré
topographic maps of the dorsal surface of human body.
The obtained results of construction of 3D surface form according to the maps
prove the possibility of estimating the value of spine curvature. In the result, it was
established that the moiré method under corresponding adaptation and improvement
can be used for determination of spine curvatures and study of pathological processes,
which are connected with such curvatures.
In one of the dye laser modes, the multifrequency one, there were obtained holographic contoured maps of the relief of 3D objects according to the colliding beams
scheme. It was shown that while using this holographing scheme (unlike the inclined
reference beam scheme) the defects are eliminated, which are connected with the
hologram dispersion, for example, contours distortion, localization of bands at a
significant distance from the surface under study.
2. For the first time in collaboration with dentists, a complex experimental–
clinical study was conducted concerning deformations, which occur under functional overloads of the upper and the lower human jaws. The study gives the possibility to make a firm conclusion about good prospects of usage of holographic and
speckle-interferometry methods in dentistry.
A special interest we, experimenters, pay to the study of movable living objects.
For these purposes, the pulse ruby laser was developed and produced, which generates
double monopulses with tunable time interval between them. The recording method
of living object holographic interferogram was perfected. Using the double-pulse
holographic interferometry method, the interferogram of strained hand muscles with
interval between pulses of 100 μs was obtained. These preliminary holographic
experiments gave the possibility to come close to the creation of the holographic
cardiograph for studying the functional state of the cardiovascular system.
3. Holographic methods of study of human chest shifts as well as optical schemes
for their realization were developed. These holographic methods allow obtaining
information about shifts of surface points of the human chest, which are caused
by mechanical waves appeared during heart contraction and blood flow pulsation.
They give the possibility to qualitatively estimate the value and the direction of the