National Repository of Grey Literature 22 records found  beginprevious13 - 22  jump to record: Search took 0.01 seconds. 
IO-Link as the Industrial Network
Vávra, Jakub ; Stibor, Karel (referee) ; Štohl, Radek (advisor)
This bachelor thesis deals with sensors in industrial network IO-Link. The aim of the work is to design, build and test a demonstration panel together with asuitable laboratory task to test the characteristics of each sensor.
Optical Fibers Forming For Optical Sensors Research
Jelínek, Michal
We present development of new methods and techniques of the splicing and shaping optical fibers with focusing to development new sensors. We developed new techniques of splicing for standard Single Mode (SM) and Multimode (MM) optical fibers and optical fibers with different diameters in the wavelength range from 532 to 1550 nm. Together with development these techniques we prepared other techniques to splicing and shaping special optical fibers like as Polarization-Maintaining (PM) or hollow core Photonic Crystal Fiber (PCF) and theirs cross splicing methods with focus to minimize backreflection and attenuation. Splicing special optical fibers, especially PCF fibers with standard telecommunication and other SM fibers, can be done by light adjustment of our developed techniques.
Fiber optic sensors
Janďourek, Leoš ; Šifta, Radim (referee) ; Čučka, Milan (advisor)
Term paper deals with optics, optical fibers and in particular with optical sensors, which are described in more detail. Furthermore, we introduce a new simulation program from VPI photonics. We will show the user interface and the possibiliti of sumulation in it.
Wireless system for control of doors
Tománek, Daniel ; Kubíček, Michal (referee) ; Prokeš, Aleš (advisor)
Semestral thesis called Wireless system for control of doors describes design of system for sliding door actuation with wireless remote control. It focuses on Silicon Laboratories microcontroller C8051F120 series and tries to explain some possibilities of electric sliding door actuation driving, position sensing by optical sensors and shows opportunities of ZigBee protocol usage in wireless communication.
Mobile robot sensor system
Juhás, Miloš ; Frýza, Tomáš (referee) ; Fedra, Zbyněk (advisor)
In this Bachelors thesis is processed the basic theoretical knowledge needed to design sensory system for a small mobile robot and the sensory system itself is designed. Thesis describes the working principle of tactile, optoelectonic and ultrasound sensors, their basic features, advantages and disadvantages. Next there are processed known prospects of sensors electrical schemes for line following and obstacle detection sensors and commercialy available solutions are briefly described. In the second part there is, based on introduced principles, experimental schemes and measurements, the sensory system itself designed, which is capable of advanced detection abilities and microprocessor conducted data processing. The design is focused on power usage optimisation, control software efficiency and extended universality of designed system. Part of the thesis are libraries of functions required for simple control and sensory system application. In the epilogue there are listed and evaluated the testing results and measured parameters of designed system.
Detection of aromatic hydrocarbons in air and water by using xerogel layers coated on PCS fibers excited by an inclined collimated beam
Cherif, K. ; Hleli, S. ; Abdelghani, A. ; Jaffrezic-Renault, N. ; Matějec, Vlastimil ; Mrázek, Jan ; Chomát, Miroslav ; Kašík, Ivan
This paper deals with the detection of aromatic hydrocarbons in air or water which is based on refractive-index changes of a silica xerogel detection layer applied on silica optical fiber. The fiber is excited by an inclined collimated beam. The sensitivity of the tetraethoxysilane- and methyltriethoxysilane- based xerogel layers to benzene and toluene in air and in liquid water are presented. The detection limits were about 500 and 5 ppm for air and water, respectively.

National Repository of Grey Literature : 22 records found   beginprevious13 - 22  jump to record:
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