National Repository of Grey Literature 18 records found  previous11 - 18  jump to record: Search took 0.01 seconds. 
Sběr a analýza dat z inteligentního včelího úlu
ŠIRHAL, Lukáš
This thesis deals with creating hardware and software equipment of intelligent beehive for data collection purpose. Measurement characteristics are temperature, humidity, weight of beehive and audio record of bees. They are measured by available IoT technology. They are simple single-chip component with a clear focus. This thesis also include creation of software for measurements this characteristics and communications with server. The software featured of the remote server are also documented. This software analyze incoming measurement and also provides their displays. Software in this thesis is developed in language Python.
Measurement unit for monitoring of refraction index of air
Hucl, Václav ; Beneš, Petr (referee) ; Havránek, Zdeněk (advisor)
First part of this work is focused on the description exist methods for measuring refraction index of air. Second part deal with concrete problem realization measurement unit for monitoring of refraction index of air. Refraction index of air is measured indirect method which is based on a modified Edlen formula.
Wireless sensoric network for hop drying facility
Čapek, Lukáš ; Čech, Jakub (referee) ; Šnajdr, Václav (advisor)
The purpose of this project is to build a wireless sensor network for measuring temperature and relative humidity in hop drying facility. This is a monitoring device, consists of several sensor units and one control and display unit. Display unit coordinates a whole network and can display data on LCD or download collected data to PC. Sensor unit measures a relative humidity, temperature, battery voltage and transmits data to display unit. Units contain a transceiver which operates in ISM band 868 MHz. Circuits are driven by 8-bits microcontroller Freescale.
Sensory array for home automation
Bastl, Michal ; Lamberský, Vojtěch (referee) ; Vejlupek, Josef (advisor)
Bachelor thesis Sensory array for home automation describes the design of a simple system for measuring air temperature, relative humidity and light levels in the room. The aim is to design measuring units which will be able to communicate with the parent unit through the RS-485 fieldbus. Parent unit will be designed to allow the transfer of data to PC via the USB bus.
Sensor and control system design for temperature chamber
Kalachová, Alena ; Andrš, Ondřej (referee) ; Houška, Pavel (advisor)
Bachelor thesis describes the design of sensors and control temperature chamber with a working range of -20 to 100 ° C for testing the operation of electronics with the required accuracy of ± 2 ° C. As an actuator for heating and cooling chamber was selected Peltier. Suitable temperature and humidity sensors were designed according to requirements.
Double layer humidity sensor based on phthalocyanine derivatives
Rakušan, J. ; Karásková, M. ; Hamáček, A. ; Řeboun, J. ; Kubáč, L. ; Černý, J. ; Rais, David ; Nešpůrek, Stanislav
New type of humidity sensors based on double layer structure consisting of hydrophilic and hydrophobic phthalocyanine derivatives is presented. The sensor shows high sensitivity in the range from 20 to 90 % relative humidity (RH), good long-time stability and fast response. The impedance change vs. RH is quasi-linear in semilogarithmic plot and fully reversible.
Humidity sensor based on TiO2 nanoparticles and sodium salt of sulfonated AlOH phthalocyanine
Rakušan, J. ; Karásková, M. ; Hamáček, A. ; Řeboun, J. ; Rais, David ; Nešpůrek, Stanislav
New type of humidity sensor based on TiO2 nanoparticles and sodium salt of sulfonated AlOH phthalocyanine is presented. The sensor shows high sensitivity due to the high surface area of TiO2 nanoparticles, good long-time stability and sensitivity in the range from 20 to 80 % RH. The response is linear in semilogarithmic plot – logarithm of impedance vs. RH and fully reversible.
Sensorické vlastnosti rozpustných ftalocyaninů
Severová, K. ; Weiter, M. ; Nešpůrek, Stanislav
Soluble phthalocyanine is suitable material for the preparation of humidity sensors. Thin films can be prepared from solution by casting or spin coating. Optical spectrum shows two main maxima located at 350 nm and 680 nm. Two additional weak bands with maxima located at 610 and 640 nm result from V vibrations and dimer formation, respectively.

National Repository of Grey Literature : 18 records found   previous11 - 18  jump to record:
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