- Analytical Chemistry and Sensors
- Sensor Technology and Measurement Systems
- Smart Materials for Construction
- Advanced Energy Technologies and Civil Engineering Innovations
- Cryptography and Residue Arithmetic
- Concrete Corrosion and Durability
- Advanced Chemical Sensor Technologies
- Cryptographic Implementations and Security
- Advanced Sensor and Energy Harvesting Materials
- Analog and Mixed-Signal Circuit Design
- Coding theory and cryptography
- Additive Manufacturing and 3D Printing Technologies
- Inertial Sensor and Navigation
- Chaos-based Image/Signal Encryption
- Electrochemical Analysis and Applications
- Historical Geography and Cartography
- Smart Grid Security and Resilience
- Advancements in Semiconductor Devices and Circuit Design
- Interconnection Networks and Systems
- Photonic and Optical Devices
- Numerical Methods and Algorithms
- Transportation Systems and Safety
- Industrial and Mining Safety
- IoT-based Smart Home Systems
- Mechanical and Thermal Properties Analysis
Brno University of Technology
2011-2023
BVT Technologies (Czechia)
2005
This paper presents a comparative study on different moduli sets that are used in the Residue Number System (RNS). Choosing proper set is one of most important issues RNS. It greatly affects performance whole system. Many have been introduced recently, each them has its own advantages and disadvantages. Therefore, necessity to survey comparison between these obvious. demonstrates detailed time hardware requirements residue-to-binary converters (RC) residue arithmetic units (RAU), based...
This paper presents a versatile first-order analog filter using differential difference transconductance amplifiers (DDTAs). The DDTA employs the bulk-driven (BD) multiple-input MOS transistors technique (MI-MOST) operating in subthreshold region. results low-voltage and low-power operational capability. Therefore, DDTA, designed 130 nm CMOS technology from UMC Cadence environment, operates with 0.3 V consumes 357.4 nW. Unlike previous works, proposed provides transfer functions of low-pass,...
Printed electronics is key segment in modern fabrication of ultra-low-cost RFID/NFC/RF tags, smart labels, packaging, sensors etc. This paper shows the opportunity usage well known printing process called "offset printing" or lithography". It widely spread and developed industry, but rarely used for printed tags. work proposes offset press on variety substrates at high speed large capacity production also points to a connection lot post-press technologies such as foil lamination, cutting,...
This paper describes the design and construction of an electronic interface for differential capacitance sensor pressure. The 14-bit precision measurement is required. total power consumption below 5 mW galvanic separation needed.
This article deals with the measurement system and use of special cement composites carbon particulates. The type particulates consequently determines electrical properties composite material. These materials can be used for electric heating, electromagnetic shielding or stress measurement. Strain to measure deformation concrete structures (bridges, beams, pillars) weighing-in-motion road vehicles. describes novel laboratory equipment which is designed multichannel dynamic long-period...
This paper deals with the theoretical and practical aspects of measurement shielding efficiency. An alternative method these measurements is described in this contribution. The design, measured results parameters circular flange are discussed other parts paper. Carbon fibers electrically conductive can be added to cement enhance effectiveness. describes possible methods for measuring efficiency concrete materials carbon fiber.
Thermal comfort of person living in building with radiant floor heating is not usually perfect. There absence control system based on each single room. This work proposes a simple, promising, effective and cost-effective regulation for heating. Designed small wireless sensors placed every room to measure the temperature wirelessly send it cloud. The data analyzed compared user selected values appropriate actions are taken by relay unit that controls flow through circuit thermoelectric...
The object of our project is a design and verification composite elements defined shape with effective content carbon particles fibers. These composites should be able to monitor internal state selected structural in order eliminate negative effects loading.
This paper deals with conductive concrete materials and its testing controlling. Multipurpose remotely-controlled thermostat, called iTHERMST, was designed built to test evaluate new samples of the cement-based material high specific heat thermal conductivity. iTHERMST tests collects various data that can be imported directly PC software for further evaluations. New possible controlling algorithms were introduced, described finally tested in practice.
The microelectronic measuring system for conductivity electro-chemical sensor measurement of liquid materials properties was designed in AMIS CMOS 0.7 mum technology. main parts the are current source with switchable subranges, switches allowing change polarity compliance bipolar pulse method, which developed specially this purposes at Dept. Microelectronics. most important part is a voltage drop circuit using opamp's offset switched compensation.
Abstract Our entire planet is filled by communication routes, and as a result of the evolving information technologies, their numbers will continue to grow in future. Demand for reliability hence importance protecting related technologies from all kinds interference increasing well. Therefore, it necessary develop new materials order protect these routes against negative influences environment such atmospheric discharge. The main aim research verify properties cement composite that can be...
This work focuses on the measurement of tilt and direction specifically in small angles. Particularly problematic is within angles up to 10°. In such excessively impacted by noise it impossible measure precisely. However, application where accurate information about needed one accelerometer might not be sufficient enough. The method proposed this paper introduces two accelerometers shifted from each other 45° counterclockwise x z axes at same time. are affected as considerably, therefore...
This article deals with measuring magnetic azimuth using inertial sensors.It introduces the steps in this process and obstacles that need to be solved order achieve more precise results.The can determined one magnetometer; however, precision such measurement is limited.Therefore, also of relative acquired by gyroscope.The essential part calibration mentioned sensors, which described detail.The supported equations, graphs, tables.The itself consists an output from magnetometer.The gyroscope...
Mechatronic systems blend mechanical safety with access control, but the ones available on market have their shortcomings; they lack a fully wireless setup, dimensions are increased, and number of stored logs in keys is limited. Therefore, this paper, we aimed to develop complete IoT mechatronic security system, ePRO version 1.4. The presented system allows for online updates permissions, updated wirelessly, cylinders do not need extra wiring while maintaining original dimensions. resists...