Search results for: OPTICAL VELOCITY MEASUREMENT

• Discrete measurement of fault-arc velocity

  Publication

  • D. Kowalak
  • R. Partyka
  • A. Wolny

  - Measurement Automation Monitoring - Year 2007

  Opisano metodę dyskretnego pomiaru prędkości jednofazowego łuku awaryjnego poruszającego się w płaskim, poziomym układzie szyn. Badania przeprowadzono za pomocą punktowych czujników optycznych rozmieszczonych równomiernie wzdłuż szyn. Podano opis układu, jego charakterystykę, wpływ obszaru zjonizowanego na uzyskiwane wyniki i zależności między obserwowanymi wielkościami.

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• Position and velocity measurement using incremental encoder and microcontroller.

  Publication

  • T. Kucharski
  • K. Żurek

  - Year 2006

  There is presented measurement of position and velocity using Atmel's microcontroller ATTiny2313 with 20 MHz clock and encoder with 1024 pulses per revolution. This configuration allows measuring maximum speed 48800 rpm with 1x accuracy, 20200 rpm with 2x accuracy and 9400 rpm with 4x accuracy (quadrature). Position is measured with resolution of 0.352', 0.176' and 0.088' for 1x, 2x, 4x accuracy respectively. Algorithms of position...

• Measurement techniques of tailored optical fibers

  Publication

  • R. Romaniuk
  • J. Dorosz
  • R. S. Romaniuk

  - Year 2003

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• Optical Fibre, Local Measurement Systems For Ships

  Publication

  • F. Szczot
  • R. Romaniuk
  • R. S. Romaniuk

  - Year 1987

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• Velocity measurement using the fdoa method in ground-based radio navigation system

  Publication

  • J. Sadowski

  - Metrology and Measurement Systems - Year 2014

  Velocity is one of the main navigation parameters of the moving objects. However some systems of position estimation using radio wave measurements cannot provide velocity data due to limitation of their performance. In this paper a velocity measurement method for DS-CDMA radio navigation system is proposed, which doesn’t require full synchronization of reference stations carrier frequencies. The article presents basics of FDOA...

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• Measurement of distance, velocity and angle of arrival using FMCW-CW combined waveform

  Publication

  • D. Duraj
  • M. Płotka
  • M. Rzymowski
  • K. Nyka
  • Ł. Kulas

  - Year 2016

  A procedure of tacking small flying object based on a general principle of FMCW and Doppler radar is presented. In order to increase measurement range, this technique uses active signal source on the moving object. For simultaneous measurements of distance, radial velocity and direction (AoA) as well as simplified synchronization a combined FMCW-CW waveform is proposed. The presented measurement system was realized and verified...

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• Calibration of the CMS drift tube chambers and measurement of the drift velocity with cosmic rays

  Publication

  • C. Collaboration
  • R. S. Romaniuk

  - Journal of Instrumentation - Year 2010

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• Measurement of selected characteristics of low-coherence optical signal sources for optical coherence tomography

  Publication

  • M. Jedrzejewska-Szczerska
  • R. Hypszer

  - Year 2005

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• Measurement of selected characteristics of low-coherence optical signal sources for optical coherence tomography

  Publication

  • M. Szczerska
  • R. Hypszer

  - Year 2005

  OCT to nowa metoda badania wewnętrznych struktur materiałów. Wśród wielu technik detekcji sygnału optycznego wykorzystywanych w OCT najpopularniejszą i najbardziej obiecującą jest OLCR (Opticla-Low Coherence Reflectomerty - reflektometria niskokoherentna). OLCR wykorzystuje szerokopasmowe źródła, których parametry, jak np.: charakterystyka widmowa, charakterystyka szumowa, determinują właściwości metrologiczne systemu OCT. W artykule...

• Thickness monitoring of thin lamellae by optical measurement method

  Publication

  • J. Sandak
  • K. Orłowski
  • M. Negri
  • C. Tanaka

  - FOREST PRODUCTS JOURNAL - Year 2006

  Do dnia dziesiejszego do pomiaru grubosci tarcicy używa się głównie suwmiarek. Celem projektu było opracowanie skanera, nie wymagajacego wysokich nakładów finansowych, do pomiarów grubości lameli po operacji rozpiłowywania drewna. Opracowany system jest zdolny do wykrywania elementów odbiegajacych od okreslonych tolerancji wymiarowych. zastosowano metodę pomiaru typu sandwich wykorzystująca 4 głowice laserowe. Wyazano, że przy...

• The measurement of the velocity field around a ship hull mo-del in a tawing tank using PIV method

  Publication

  • J. Dekowski
  • M. Kocik
  • J. Podliński
  • J. Wasilewski
  • J. Mizeraczyk
  • L. Wilczyński
  • J. Kanar
  • J. Stąsiek

  - Year 2002

  Rozdział zawiera wyniki badań eksperymentalnych pola prędkości wokół modelukadłubu statku metodą PIV. Wykazano prawidłowość zastosowania metody PIV wtego typu badaniach.

• Optical Fibre Control-Measurement Systems Of Compound HV/HP Electrical Equipment

  Publication

  • F. Szczot
  • R. Romaniuk
  • R. S. Romaniuk

  - Year 1988

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• OPTICAL STRAIN MEASUREMENT OF CONCRETE VERSUS MANUAL EXTENSOMETER MEASUREMENT BASED ON THE TEST RC DEEP BEAM IN A COMPLEX STATE OF STRESS

  Publication

  • A. Kopańska
  • K. Nagrodzka-Godycka

  - Year 2017

  The purpose of this study is to compare the strain measurement techniques of concrete in R-C element subjected to the monotonic load up to the failure. In the analysis manual extensometer methods of measurements and the optical system ARAMIS for non-contact three-dimensional measurements of deformation was used. The test sample was a cantilever deep beam loaded throughout the depth which was a part of the reinforced concrete deep...

• The Influence of Camera and Optical System Parameters on the Uncertainty of Object Location Measurement in Vision Systems

  Publication

  • J. Skibicki
  • A. Golijanek-Jędrzejczyk
  • A. Dzwonkowski

  - SENSORS - Year 2020

  The article presents the influence of the camera and its optical system on the uncertainty of object position measurement in vision systems. The aim of the article is to present the methodology for estimating the combined standard uncertainty of measuring the object position with a vision camera treated as a measuring device. The identification of factors affecting the location measurement uncertainty and the determination of their...

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• Application of optical microsphere in fiber optic sensors for measurement of electrochemical processes

  Open Research Data

  open access

  • P. Listewnik

  investigation of the electrochemical processes using micro-sphere fiber-optic sensor with a zinc oxide (ZnO) coating applied by Atomic Layer Deposition method (ALD). The measurements were performed in 1M KNO3 during a decomposition of Bisphenol-A

• Maciej Wróbel dr inż.

  People

  Department of Metrology and Optoelectronics

  Received PhD from Gdańsk University of Technology in 2019. Research interests involve non-invasive applications of Raman spectroscopy for tissue analysis, specifically blood parameters measurements. Tissue mimicking phantoms, measurement of optical properties (scattering, absorption), as well as other optical sensing methods. Raman spectroscopy and surface-enhanced Raman spectroscopy (SERS) utilized for measurements of biological...

• Modeling of Passive and Forced Convection Heat Transfer in Channels with Rib Turbulators

  Publication

  • J. Stąsiek
  • A. Stąsiek
  • M. Szkodo

  - ENERGIES - Year 2021

  The main goal of the research presented in this paper was the experimental and numerical analysis of heat enhancement and aerodynamic phenomena during air flow in a channel equipped with flow turbulators in the form of properly configured ribs. The use of ribs intensifies the heat transfer and at the same time increases not only the flow resistance but also the energy costs. Therefore, designing modern heat exchangers with optimal...

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• Maciej Jerzy Głowacki

  People

  Maciej Jerzy Głowacki is an alumnus of the Gdańsk University of Technology. He graduated with honors from the Faculty of Mechanical Engineering (B.Eng., 2017) and the Faculty of Electronics, Telecommunications and Informatics (M.S., 2018). Since 2014 he has been continuously actively involved in a research carried out at the Department of Metrology and Optoelectronics. His scientific activities include a deposition of antibacterial...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). No lubrication (DRY). Specim. set K04

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DRY. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig: TPZ-1...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). No lubrication (DRY). Specim. set K05

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DRY. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig: TPZ-1...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). No lubrication (DRY). Specim. set K03

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DRY. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig: TPZ-1...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). No lubrication (DRY). Specim. set K01

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DRY. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig: TPZ-1...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - DISTILLED WATER. Specim. set K07

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DISTILLED WATER. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - DISTILLED WATER. Specim. set K06

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DISTILLED WATER. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - PARAFFIN OIL. Specim. set K08

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: PARAFFIN OIL. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig:...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - DISTILLED WATER. Specim. set K02

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DISTILLED WATER. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - PARAFFIN OIL. Specim. set K09

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: PARAFFIN OIL. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test rig:...

• Optical microsc. images of wear marks on ball (JPG). Reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%). Lubricant - DISTILLED WATER. Specim. set K06

  Open Research Data

  open access

  • J. Łubiński
  • K. Druet

  - series: Wear in reciprocating siding friction tests. Ball-on-flat contact. Sintered alumina ceramics (98%).

  Optical microscope images of wear zone on the 5mm diam. ceramic ball used in tests as the fixed specimen.Friction and wear tests in ball-on-flat contact. Both specimens made of sintered alumina ceramics (98%) - self-mated contact.Linear reciprocating motion.Lubrication: DISTILLED WATER. Sliding velocity (peak): 0.1 m/s. Load (normal force): 5N. Test...

• Interactions using passive optical proximity detector

  Publication

  • K. Czuszyński
  • J. Rumiński
  • J. Wtorek
  • A. Vogl
  • M. Haller

  - Year 2015

  In this paper we evaluated the possible application of a passive, optical sensor as an interface for human-smart glasses interactions. The designed proximity sensor is composed of set of photodiodes and the appropriate hardware and software components. First, experiments were performed for the estimations of such parameters as distance to an object, its width and velocity. Achieved results were satisfactory. Therefore, next, a...

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• MEASUREMENT

  Journals

  ISSN: 0263-2241 , eISSN: 1873-412X

• Measurement Automation Monitoring

  Journals

  ISSN: 2450-2855

• Visual Detection of People Movement Rules Violation in Crowded Indoor Scenes

  Publication

  • P. Dalka
  • P. Bratoszewski

  - Year 2013

  The paper presents a camera-independent framework for detecting violations of two typical people movement rules that are in force in many public transit terminals: moving in the wrong direction or across designated lanes. Low-level image processing is based on object detection with Gaussian Mixture Models and employs Kalman filters with conflict resolving extensions for the object tracking. In order to allow an effective event...

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• OPTICAL MATERIALS

  Journals

  ISSN: 0925-3467 , eISSN: 1873-1252

• Metrology and Measurement Systems

  Journals

  ISSN: 0860-8229 , eISSN: 2300-1941

• Paweł Burdziakowski dr inż.

  People

  Department of Geodesy

  Paweł Burdziakowski, PhD, is a professional in low-altitude aerial photogrammetry and remote sensing, marine and aerial navigation. He is also a licensed flight instructor and software developer. His main areas of interest are digital photogrammetry, navigation of unmanned platforms and unmanned systems, including aerial, surface, underwater. He conducts research in algorithms and methods to improve the quality of spatial measurements...

• Niskokoherencyjne czujniki światłowodowe wykorzystujące cienkowarstwowe struktury nanodiamentowe

  Publication

  • D. Majchrowicz

  - Year 2018

  Znaczny rozwój technologii wytwarzania czujników światłowodowych spowodował, że są one powszechnie dostępne i stosowane w wielu gałęziach przemysłu, nauki oraz medycyny. Zastosowanie nowych materiałów w konstrukcji takich czujników niesie za sobą duży potencjał. Celem rozprawy jest przedstawienie możliwości wykorzystania cienkowarstwowych struktur nanodiamentowych w niskokoherencyjnych czujnikach światłowodowych, które poprawią...

• Correlations between the wear of car brake friction materials and airborne wear particle emissions

  Publication

  • W. Tarasiuk
  • K. Golak
  • Y. Tsybrii
  • O. Nosko

  - WEAR - Year 2020

  Airborne wear particles emitted from transport vehicle brakes are one of the main sources of toxic metals in inhalable particulate matter. Prediction of wear particle emissions may become more accurate if the relationship between the wear and particle emission characteristics is known. An experimental study was performed to investigate proportional correlations between the mass wear, 0.01–0.42 μm particle emission measured by a NanoScan...

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• MICROWAVE AND OPTICAL TECHNOLOGY LETTERS

  Journals

  ISSN: 0895-2477 , eISSN: 1098-2760

• Measurements and Measurement Systems [2021/22]

  e-Learning Courses

  • A. Golijanek-Jędrzejczyk
  • A. Dzwonkowski
  • M. Śliwiński
  • M. Wołoszyn

  The aim of the course is to introduce theoretical and practical students with basic and advanced methods of measurement of various measured quantity and the design and function of the measurement systems.

• Diagnostyka off-line stanu izolacji uzwojeń silników 6 kV z wykorzystaniem obrazowania akustycznego wyładowań niezupełnych

  Publication

  • M. Adamowicz
  • M. Gulczyński
  • M. Olesz

  - Przegląd Elektrotechniczny - Year 2024

  W zakładach przemysłowych, w których kluczowe procesy produkcyjne są realizowane z wykorzystaniem silników średniego napięcia, dla których diagnostyka izolacji uzwojeń ma istotne znaczenie. W tym celu wykonuje się ocenę porównawczą wyników pomiarów wyładowań niezupełnych (WNZ) wykonywanych dla jednostek tego samego typu, a jej skuteczność w znacznej mierze wynika z wieloletniego doświadczenia diagnosty. Dla opracowania wyników...

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• Robert Bogdanowicz dr hab. inż.

  People

  Department of Metrology and Optoelectronics

  Robert Bogdanowicz received his Ph.D. degree with honours in Electronics from the Gdansk University of Technology. He worked as a post-doc researcher in Ernst-Moritz-Arndt-Universität Greifswald Institut für Physik. He has initiated optical emission imaging of muti-magnetron pulsed plasma and contributed to the development of antibacterial implant coatings deposited by high-power impulse magnetron sputtering. He moved back to...

• Adam Władziński

  People

  Adam Władziński, a PhD Candidate at Gdansk University of Technology, specializes in Biomedical Engineering with a focus on machine learning for image processing and blockchain technology. Holding a BEng and MSc in Electronics, Adam Władziński has developed a keen interest in applying advanced computational techniques to biological systems. During their master’s program, Adam Władziński explored laser spectroscopy, building a database...

• Reduction of the Velocity Impact on the Magnetic Flux Leakage Signal

  Publication

  • Z. Usarek
  • M. Chmielewski
  • L. Piotrowski

  - JOURNAL OF NONDESTRUCTIVE EVALUATION - Year 2019

  The velocity effect on the magnetic flux leakage (MFL) signal was investigated in this paper. Experiments were performed for velocity of the MFL tool within the range of 0–2 m/s. The velocity was not constant during each measurement to imitate real operational conditions of the MFL tool. Two components of the leakage were measured, i.e. the tangential to the motion direction (x) and the normal to the investigated surface (z). In...

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• MEASUREMENT SCIENCE & TECHNOLOGY

  Journals

  ISSN: 0957-0233 , eISSN: 1361-6501

• Charge Transfer, Complexes Formation and Furan Fragmentation Induced by Collisions with Low-Energy Helium Cations

  Publication

  • T. Wąsowicz
  • M. Łabuda
  • B. Pranszke

  - INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES - Year 2019

  The present work focuses on unraveling the collisional processes leading to the fragmentation of the gas-phase furan molecules under the He+ and He2+ cations impact in the energy range 5–2000 eV. The presence of different mechanisms was identified by the analysis of the optical fragmentation spectra measured using the collision-induced emission spectroscopy (CIES) in conjunction with the ab initio calculations. The measurements of...

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• Electro-optical transducer based on indium-tin-oxide-coated optical fiber for analysis of ionized media

  Publication

  • P. Sezemsky
  • M. Koba
  • P. Curda
  • R. Bogdanowicz
  • V. Stranak
  • M. Śmietana

  - MEASUREMENT - Year 2023

  The paper introduces a concept of an optical fiber based electro-optical transducer for monitoring of ionized media, such as low-temperature plasma. It utilizes optical fiber with a section of a core coated with tailored indium tin oxide (ITO) thin film and thus combines the optical phenomena of lossy-mode resonance (LMR) with the electrostatic probe. ITO is an optically transparent and electrically conductive material and if its...

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• Low-coherence method of hematocrit measurement

  Publication

  • M. Szczerska
  • M. Gnyba
  • M. Kruczkowski

  - Year 2011

  During the last thirty years low-coherence measurement methods have gained popularity because of their unique advantages. Low-coherence interferometry, low-coherence reflectometry and low-coherence optical tomography offer resolution and dynamic range of measurement at the range of classical optical techniques. Moreover, they enable measurements of the absolute value of the optical path differences, which is still an unsolved problem...

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• A system for acoustic field measurement employing cartesian robot

  Publication

  • M. Szczodrak
  • A. Kurowski
  • J. Kotus
  • A. Czyżewski
  • B. Kostek

  - Metrology and Measurement Systems - Year 2016

  A system setup for measurements of acoustic field, together with the results of 3D visualisations of acoustic energy flow are presented in the paper. Spatial sampling of the field is performed by a Cartesian robot. Automatization of the measurement process is achieved with the use of a specialized control system. The method is based on measuring the sound pressure (scalar) and particle velocity (vector) quantities. The aim of the...

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• Compressible gas density measurement by means of Fourier analysis of interferograms

  Publication

  • J. Telega
  • R. Szwaba
  • M. Śmiałek-Telega

  - MEASUREMENT - Year 2022

  This paper describes a method for nonintrusive compressible gas density measurement by means of automated analysis of interferograms using FFT (Fast Fourier Transform), and its implementation using DFT (Discrete Fourier Transform), that does make this measurement technique a fairly valuable and accessible experimental method. The presented approach makes it possible to use the finite fringe setting of the interferometer, thus reducing...

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• IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT

  Journals

  ISSN: 0018-9456 , eISSN: 1557-9662