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Apodization of the fibre Bragg gratings by use of phase mask UV exposition
Burian, Tomáš ; Hejátková, Edita (referee) ; Urban, František (advisor)
This thesis describes the problem of fiber gratings, focusing primarily on the use of Bragg's grids in the sensor. It describes the types of fiber mesh production, especially the method of writing with a phase mask. The next part deals with the possibilities of using apodization in fiber optic systems. It deals with the various functions that can be used to describe apodization. The following part describes the moire principle, especially the method of overlapping two phase masks with a different period.
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Possibilities of evaluating the effect of rehabilitation aimed at improving postural stability in adults.
Heřmanská, Dagmar ; Stříbrný, Martin (advisor) ; Kolář, Jáchym (referee)
The paper deals with the comparison of different options for assessing the effect of physiotherapy aimed mainly at improving postural stability in adult patients. The theoretical part of the bachelor thesis defines postural stability, its optimal function in physiological situations and the most common pathologies. The clinical consequences of postural stability disorders and their treatment options are discussed. The most frequent consequence of insufficient postural stability is chronic low back pain (in the English literature "LBP"). The knowledge about the possibilities of clinical evaluation of the effect of physiotherapy is discussed. It is a subjective assessment by the patient, using PROM questionnaires (Patient- reported Outcome Measures) and DNS manual. Furthermore, the possibilities of objective assessment-dynamometry (DNS Brace device), Moiré and Pedoscan are described. The paper describes the principle of these devices and evaluates their advantages and disadvantages in clinical practice. The practical part contains case reports of two patients with chronic LBP. The patients are evaluated with the above mentioned procedures before and after a series of six hourly therapies with weekly frequency. The therapy was performed at the Pavel Kolar Center for Movement Medicine under the...
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Apodization of the fibre Bragg gratings by use of phase mask UV exposition
Burian, Tomáš ; Hejátková, Edita (referee) ; Urban, František (advisor)
This thesis describes the problem of fiber gratings, focusing primarily on the use of Bragg's grids in the sensor. It describes the types of fiber mesh production, especially the method of writing with a phase mask. The next part deals with the possibilities of using apodization in fiber optic systems. It deals with the various functions that can be used to describe apodization. The following part describes the moire principle, especially the method of overlapping two phase masks with a different period.
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Optical methods in experimental mechanics
Hrabovský, Miroslav
The paper deals with experimental methods used in experimental mechanics, especially in experimental stress analysis. High attention is given to optical methods - classical and modern optical methods and its future in mechanics. They are classical interferometry based on optical interference and superposition, stereometry, photoplasticity, moiré, holography speckle photography etc.
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