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Textile electrodes in ECG measurement
Kocum, Filip ; Vélim, Jan (referee) ; Cupal, Miroslav (advisor)
This semestral thesis deals with the issue of electrocardiogram measurement and heart rate detection using textile electrodes placed on the body. One of the main tasks was to design the possibilities of attaching the sensors to the body in order to ensure the best possible adhesion to the skin. The work focuses on the design of suitable electrode placement in terms of functionality and stability of measurement. Furthermore, the work focuses on the comparison of textile and Ag / AgCl electrodes. The last point was the design of a preamplifier for measurement and its subsequent implementation.
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Cloth moisture monitor
Prokop, Jan ; Jirgl, Miroslav (referee) ; Bradáč, Zdeněk (advisor)
The aim of this thesis is design and construction of cloth moisture monitor. This is the experimental device, which should be used to real time detection of urine leakage of patient and children. Principle of this device is measuring conductibility of moistured cloth. In the theoretical introduction, important methods of moisture measurement are discussed and compared in terms of cloth moisture detection. Signal processing is provided by a microcontroller, which displays humidity on the display and alerts audibly. The device is able to accurately measure humidity and allows you to set the humidity level on an audible alert.
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Kompozitní materiál vyztužený skelnými vlákny s různou orientací
Brychta, Ondřej
The aim of this diploma thesis is an experimental comparison of mechanical proper-ties of composite materials reinforced with differently oriented glass fibers. These were samples of polyurethane resin with a needled mat, which is used in the floor of buses as a supporting element of floors. The theoretical part is focused on the composition, composition of fibers and distri-bution of individual types of composite materials and on determining the production method that can be used in the production of composite materials in various areas of industry. At the same time, a comprehensive methodology for recording failure of composite material during tensile loading was proposed in the experimental part. During loading, samples were monitored by the optical digital image correlation (DIC) method to identify deformations on the test samples. This method has become a suitable tool for evaluation and characterization of the deposition of individual fabrics in tested samples. Thanks to this me-thod, individual failures occurring during tensile loading were detected. These were divided into certain typical phases of composite material failure. The samples for the experimental part are samples of polyurethane resin reinforced with a needled mat. The reinforcement structure is composed of a total of 6 layers. It is a two-layer material composed of woven roving and chopped mat. On the back of the U-profile is reinforced with glass-roving.
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Textile electrodes in ECG measurement
Kocum, Filip ; Vélim, Jan (referee) ; Cupal, Miroslav (advisor)
This semestral thesis deals with the issue of electrocardiogram measurement and heart rate detection using textile electrodes placed on the body. One of the main tasks was to design the possibilities of attaching the sensors to the body in order to ensure the best possible adhesion to the skin. The work focuses on the design of suitable electrode placement in terms of functionality and stability of measurement. Furthermore, the work focuses on the comparison of textile and Ag / AgCl electrodes. The last point was the design of a preamplifier for measurement and its subsequent implementation.
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Cloth moisture monitor
Prokop, Jan ; Jirgl, Miroslav (referee) ; Bradáč, Zdeněk (advisor)
The aim of this thesis is design and construction of cloth moisture monitor. This is the experimental device, which should be used to real time detection of urine leakage of patient and children. Principle of this device is measuring conductibility of moistured cloth. In the theoretical introduction, important methods of moisture measurement are discussed and compared in terms of cloth moisture detection. Signal processing is provided by a microcontroller, which displays humidity on the display and alerts audibly. The device is able to accurately measure humidity and allows you to set the humidity level on an audible alert.
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