Rok 2025

• Guided ultrasonic wave technique for corrosion monitoring and thickness variability analysis

  Publikacja

  • B. Zima

  - MEASUREMENT - Rok 2025

  Corrosion degradation poses a significant challenge to the structural integrity of industrial components, especially in critical sectors such as oil and gas, marine, and energy. This paper presents a novel approach to assessing corrosion damage using guided ultrasonic waves (GUWs), focusing on the statistical characterization of thickness variability in corroded plates. A combined algorithm is developed to estimate key statistical...

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• Investigating the suitability of the matched fiber Bragg grating approach for guided wave based structural health monitoring

  Publikacja

  • R. Soman
  • F. Omidi Moaf
  • P. Fiborek
  • P. Kudela
  • M. Kurpińska

  - MEASUREMENT - Rok 2025

  Fiber Bragg grating (FBG) sensors are thought to be ideal sensors for structural health monitoring (SHM). Amplitude based techniques such as matched filters and the edge-filtering have been proposed to fulfill the high sampling rates necessary for guided waves (GW) sensing. The current research for the first time shows the inherent robustness the matched filter technique provides to the sensing system. The matched system is realized...

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• Monitoring of absorptive model biogas purification process using sensor matrices and gas chromatography

  Publikacja

  • E. Słupek
  • D. Dobrzyniewski
  • P. Makoś-Chełstowska
  • B. Szulczyński
  • J. Gębicki

  - MEASUREMENT - Rok 2025

  This study examined the process of purifying model biogas using a new type of absorbent based on a Deep Eutectic Solvent (DES) and a commercially available absorbent (Genosorb) to remove acetone, toluene, and cyclohexane. The main aim of the research was to control the purification efficiency using gas chromatography (GC) and an alternative method based on sensor matrices (SM). As a result of comparing the multidimensional SM signals...

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• Study of vibrational surface topography measurement errors of LPBF Inconel 718 alloy after shot peening process

  Publikacja

  • P. Podulka
  • A. Rudawska
  • W. Macek

  - MEASUREMENT - Rok 2025

  A study of surface topography can provide valuable information on the product. Since the material finishing relies on the measured topography, the manufacturing process can be controlled by studying the roughness. The Laser Power Bed Fusion (LPBF) materials belong to the commonly used surfaces in the industry. Measuring this type of material with a contactless method can be found in many practical implementations. The white light interference...

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Rok 2024

• A procedure for the identification of effective mechanical parameters of additively manufactured elements using integrated ultrasonic bulk and guided waves

  Publikacja

  • E. Wojtczak
  • M. Rucka
  • A. J. Andrzejewska-Sroka (dawniej: A. Andrzejewska)

  - MEASUREMENT - Rok 2024

  The subject of the current work was a simple but robust novel two-stage procedure for the non-destructive determination of effective elastic constants using ultrasonic wave propagation. First, ultrasonic bulk wave velocities measured on cubic samples were used to calculate most of the elements of the stiffness matrix. Secondly, the remaining elements were determined using the dispersion curves of elastic guided waves measured on...

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• Automated measurement method for assessing thermal-dependent electronic characteristics of thin boron-doped diamond-graphene nanowall structures

  Publikacja

  • M. Rycewicz
  • M. Banasiak
  • M. Ficek
  • S. Kubowicz
  • S. Baluchová
  • B. Sobczak
  • E. Vereshchagina
  • R. Bogdanowicz

  - MEASUREMENT - Rok 2024

  This paper investigates the electrical properties of boron-doped diamond-graphene (B:DG) nanostructures, focusing on their semiconductor characteristics. These nanostructures are synthesized on fused silica glass and Si wafer substrates to compare their behaviour on different surfaces. A specialized measurement system, incorporating Python-automated code, was developed for an in-depth analysis of electronic properties under various...

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• Cost-Efficient Measurement Platform and Machine-Learning-Based Sensor Calibration for Precise NO2 Pollution Monitoring

  Publikacja

  • A. Pietrenko-Dąbrowska
  • S. Kozieł
  • M. Wójcikowski
  • B. Pankiewicz
  • A. Rydosz
  • T. Cao
  • K. Wojtkiewicz

  - MEASUREMENT - Rok 2024

  Air quality significantly impacts human health, the environment, and the economy. Precise real-time monitoring of air pollution is crucial for managing associated risks and developing appropriate short- and long-term measures. Nitrogen dioxide (NO2) stands as a common pollutant, with elevated levels posing risks to the human respiratory tract, exacerbating respiratory infections and asthma, and potentially leading to chronic lung...

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• Determination of the shape of the CFGFT cylindrical column based on laboratory tests

  Publikacja

  • E. Mieloszyk
  • M. Abramski
  • A. Milewska

  - MEASUREMENT - Rok 2024

  Analyses were carried out on glass-fibre-reinforced polymer tube columns with reference to laboratory tests. The angles of the glass fibre beams were 20◦, 55◦ and 85◦. The study employed non-classical operational calculus. Various modulated harmonic signal shapes were considered for columns and tubes at buckling. The buckling loads were assessed and compared for different models.

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• Field Calibration of Low-Cost Particulate Matter Sensors Using Artificial Neural Networks and Affine Response Correction

  Publikacja

  • S. Kozieł
  • A. Pietrenko-Dąbrowska
  • M. Wójcikowski
  • B. Pankiewicz

  - MEASUREMENT - Rok 2024

  Due to detrimental effects of atmospheric particulate matter (PM), its accurate monitoring is of paramount importance, especially in densely populated urban areas. However, precise measurement of PM levels requires expensive and sophisticated equipment. Although low-cost alternatives are gaining popularity, their reliability is questionable, attributed to sensitivity to environmental conditions, inherent instability, and manufacturing...

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• Higher harmonics of the intensity modulated Photocurrent/Photovoltage spectroscopy response - a tool for studying photoelectrochemical nonlinearities

  Publikacja

  • A. Olejnik
  • K. Grochowska

  - MEASUREMENT - Rok 2024

  In this work, a higher harmonic analysis (HHA) of the intensity modulated photocurrent/photovoltage (IMPS/IMVS) spectroscopy data is proposed as a potent tool for studying nonlinear phenomena in photoelectrochemical and photovoltaic systems. Analytical solutions of kinetic equations were constructed for cases of single and double resonance accounting for various sources of higher harmonics. These sources correspond to the physical...

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• Laser-textured cross-hatched surface topography analysis with evaluation of high-frequency measurement noise

  Publikacja

  • P. Podulka
  • W. Macek
  • R. Branco
  • A. Kubit

  - MEASUREMENT - Rok 2024

  The precision of surface roughness determination using ISO 25178 parameters relies on various factors that directly impact the measurement process. In industry applications, the contactless roughness measurement reduces data collection time. However, it introduces several potential errors, including those stemming from the environment. One of the main types of errors encountered during topography analysis is measurement noise,...

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• Nondestructive global corrosion measurement using guided wavefield data

  Publikacja

  • B. Zima
  • E. Roch

  - MEASUREMENT - Rok 2024

  Metallic structures often face degradation, and corrosion ranks among the most prevalent forms of deterioration. Accurate quantification of corrosion is crucial, especially for structures exposed to harsh environmental conditions, such as marine vessels and offshore installations. Because the traditional measurement methods based on scanning by ultrasonic gauge are time-consuming and provide only rough information on the thickness...

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• The influence of the geographic positioning system error on the quality of ship magnetic signature reproduction based on measurements in sea conditions

  Publikacja

  • J. Tarnawski
  • K. Buszman
  • M. Wołoszyn
  • B. Puchalski

  - MEASUREMENT - Rok 2024

  In previous studies, the authors performed the magnetic signature reconstruction of the marine ship Zodiak as part of the measurement campaign focused on recording magnetic data and the relative position of a ship during its passage over a magnetometer immersed on the testing ground. A high degree of representation of the magnetic signature was obtained. However, the recorded measurement data revealed new patterns of the multidipole model...

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• Towards hand grip force assessment by using EMG estimators

  Publikacja

  • R. Barański
  • W. Wojnicz
  • B. Zagrodny
  • M. Ludwicki
  • A. Sobierajska-Rek

  - MEASUREMENT - Rok 2024

  The purpose of this study was to propose a method to assess individual regression (calibration) curves to establish a relationship between an isometric grip force and surface electromyography (EMG) estimator. In this study 18 healthy volunteers (12 male (23.0 ± 2.0 years) and 6 female (23.2 ± 0.7 years)) had been examined. Ten EMG estimators (mean absolute value, root mean square, entropy, energy, turns per second, mean of zero...

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Rok 2023

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

  Publikacja

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

  - MEASUREMENT - Rok 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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• Filter-Hilbert Method for Automatic Correction of Non-Anechoic Antenna Measurements with Embedded Self-Calibration Mechanism

  Publikacja

  • A. Bekasiewicz
  • V. Waladi

  - MEASUREMENT - Rok 2023

  One of the most important steps in the process of antenna development involves measurements of its prototype. Far-field performance of radiators is normally characterized in strictly controlled environments such as anechoic chambers which can ensure certification-grade accuracy. Unfortunately, they are also characterized by high construction costs which might not be justified for low-budget research and/or teaching-related activities....

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• Frequency measurement research with weight averaging of pulse output signal of voltage-to-frequency converter

  Publikacja

  • M. Dorozhovets
  • E. Pawłowski
  • D. Świsulski

  - MEASUREMENT - Rok 2023

  The paper presents the essence and investigation of the efficiency of weight averaging of a pulse output signal of voltage-to-frequency converter. The effect of counting and the influence of interference on the result of weight averaging of frequency modulated pulses are analyzed. It is shown that from the point of view of counting error reduction, the best are polynomial weight functions. In the case of high interferences whose...

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• Matrix Strengthening the Identification of Observations with Split Functional Models in the Squared Msplit(q) Estimation Process

  Publikacja

  • M. Zienkiewicz
  • P. S. Dąbrowski

  - MEASUREMENT - Rok 2023

  This article addresses the issue of raising the level of identification of observations with either single or more split functional models in the squared Msplit(q) estimation process. The theoretical part of the study presents the theoretical grounds for the classical method for estimating parameters in a split functional model and proposes a modification of the computational algorithm to increase the quality of the determinations...

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• Matrix Strengthening the Identification of Observations with Split Functional Models in the Squared Msplit(q) Estimation Process

  Publikacja

  • M. Zienkiewicz
  • P. S. Dąbrowski

  - MEASUREMENT - Rok 2023

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• Method for determining of shallow water depths based on data recorded by UAV/USV vehicles and processed using the SVR algorithm

  Publikacja

  • M. Specht
  • B. Szostak
  • O. Lewicka
  • A. Stateczny
  • C. Specht

  - MEASUREMENT - Rok 2023

  Bathymetric measurements in waters shallower than 1 m are necessary to monitor seafloor relief changes in the coastal zone. This is especially important for ensuring the safety of navigation, navigation efficiency, as well as during the design and monitoring of hydrotechnical structures. Therefore, the aim of this article is to present a method for determining of shallow water depths based on data recorded by Unmanned Aerial Vehicle...

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• Methodology for Performing Bathymetric Measurements of Shallow Waterbodies Using an UAV, and their Processing Based on the SVR Algorithm

  Publikacja

  • B. Szostak
  • M. Specht
  • P. Burdziakowski
  • A. Stateczny
  • C. Specht
  • O. Lewicka

  - MEASUREMENT - Rok 2023

  State-of-art methods of bathymetric measurements for shallow waterbodies use Global Navigation Satellite System (GNSS) receiver, bathymetric Light Detection and Ranging (LiDAR) sensor or satellite imagery. Currently, photogrammetric methods with the application of Unmanned Aerial Vehicles (UAV) are gathering great importance. This publication aims to present step-by-step methodology for carrying out the bathymetric measurements...

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• Multisine impedimetric monitoring with an in-depth distribution of relaxation times analysis of WE43 and AZ31 magnesium alloys corrosion

  Publikacja

  • M. Osipenko
  • J. Karczewski
  • M. Dominów
  • M. Prześniak-Welenc
  • I. Makarava
  • I. Kurilo
  • D. Kharitonov
  • J. Ryl

  - MEASUREMENT - Rok 2023

  This research aims to develop and utilize an impedance-based tool for monitoring non-stationary electrochemical processes, coupling the multisinusoidal perturbation signal approach and distribution of relaxation times (DRT) analysis for the first time. The approach was used to distinguish independent processes occurring at the surface of AZ31 and WE43 Mg alloys undergoing corrosion in Hank’s Balanced Salt Solution at 37 °C. We...

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• Municipal wastewater reclamation: Reclaimed water for hydrogen production by electrolysis – A case study

  Publikacja

  • P. Zawadzki
  • B. Kończak
  • A. Smoliński

  - MEASUREMENT - Rok 2023

  This paper presents an analysis of a treatment system selection for municipal wastewater stream based on the DuPont Water Solutions WAVE software. The results obtained based on an analysis of 7 different processing cases studies (ultrafiltration and reverse osmosis) confirmed that the application of 2-pass membrane systems enables the reclamation of water from municipal wastewater that fulfills the requirements concerning the...

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• Roughness evaluation of turned composite surfaces by analysis of the shape of Autocorrelation Function

  Publikacja

  • P. Podulka
  • W. Macek
  • B. Zima
  • G. Lesiuk
  • R. Branco
  • G. Królczyk

  - MEASUREMENT - Rok 2023

  In this paper, the application of an Autocorrelation Function for the characterisation of surface topography was validated. The roughness evaluation of turned composite surfaces was supported by sophisticated studies of the Autocorrelation Function properties, considering especially the shape of the function. Details were measured with the optical method. The selection of the surface roughness evaluation procedures was carried...

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• Shaking table experimental study on models of steel buildings with different types of joints

  Publikacja

  • T. Jaroszewski
  • M. Miari
  • T. Falborski
  • R. Jankowski

  - MEASUREMENT - Rok 2023

  The aim of this paper is to study the response of models of steel buildings with destroyed and non-destroyed joints. The study was conducted experimentally using the shaking table tests. Two steel models were considered. Several types of joints were taken into account: totally destroyed joints, partially destroyed joints, welded joints and joints stiffened with additional metal. Six ground motions were taken into account. The acceleration...

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• The correlation of fractal dimension to fracture surface slope for fatigue crack initiation analysis under bending-torsion loading in high-strength steels

  Publikacja

  • W. Macek
  • R. Branco
  • P. Podulka
  • R. Masoudi Nejad
  • J. D. Costa
  • J. A. M. Ferreira
  • C. Capela

  - MEASUREMENT - Rok 2023

  In this study, the fractal dimension of fatigue fracture surfaces is investigated in order to find an alternative failure loading indicator. Some of many metrological factors are generalized by reducing the fracture surface structure to one factor and develop an entire fracture surface procedure by analyzing the impact of surface slope and calculation resolution. Three notched geometries are studied under cyclic bending-torsion:...

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• Time-Gating method with automatic calibration for accurate measurements of electrically small antenna radiation patterns in Non-Anechoic environments

  Publikacja

  • A. Bekasiewicz
  • S. Kozieł
  • M. Czyż

  - MEASUREMENT - Rok 2023

  Non-anechoic sites represent a cheap alternative to measurements of antennas in dedicated facilities. However, due to a high noise—from the external EM signal sources and multipath interferences—the quality of radiation patterns obtained in non-anechoic conditions is poor. The characteristics can be corrected using a time-gating method (TGM), which involves filtering of the noise based on temporal analysis of the measured signals....

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• Topography measurement methods evaluation for entire bending-fatigued fracture surfaces of specimens obtained by explosive welding

  Publikacja

  • P. Podulka
  • W. Macek
  • D. Rozumek
  • K. Żak
  • R. Branco

  - MEASUREMENT - Rok 2023

  In this paper, the methods of compensation of differences in the results of entire bending-fatigued fracture surface topographies were presented. The roughness evaluation was performed with a focus variation microscope and confocal surface topography measurement techniques. The differences in the ISO 25178 roughness parameters were investigated and procedures for their compensation were studied. It was found that various types...

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• Uncertainty Quantification of Additive Manufacturing Post-Fabrication Tuning of Resonator-Based Microwave Sensors

  Publikacja

  • S. Kozieł
  • T. Haq Ul

  - MEASUREMENT - Rok 2023

  Reconfigurability, especially in terms of the ability of adjusting the operating frequency, has become an important prerequisite in the design of modern microwave components and systems. It is also pertinent to microwave sensors developed for a variety of applications such as characterization of material properties of solids or liquids. This paper discusses uncertainty quantification of additive-manufacturing-based post-fabrication...

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Rok 2022

• A model of the response of the MGS-6 gravity sensor to tilting

  Publikacja

  • K. Pyrchla
  • M. Pająk
  • J. Gołyga
  • J. Pyrchla

  - MEASUREMENT - Rok 2022

  The reliable interpretation of the measurements made by the Micro-g marine gravimetric system (MGS-6) depends on how the temporary changes of the scale coefficients such as gravimeter scale factor, vertical cross-coupling (VCC) effect, tiltmeter cross and tiltmeter long are compensated for during the signal analysis. The listed coefficients cannot be determined from readings during the measurements or by analysing the final data....

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• A numerical and experimental analysis of multi-hole orifice in turbulent flow

  Publikacja

  • A. Golijanek-Jędrzejczyk
  • A. Mrowiec
  • S. Kleszcz
  • R. Hanus
  • M. Zych
  • M. Jaszczur

  - MEASUREMENT - Rok 2022

  In this research study, the comprehensive metrological analysis is investigated for a 4-hole orifice with module m = 0.25 installed in the pipeline with an internal diameter of 50 mm. A detailed numerical simulation was performed for the turbulence models: k-ε-realizable and k-ω-BSL. The novelties of the research include model validation by comparing the results of numerical studies with the experiment conducted in the area of...

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• A Surrogate-Assisted Measurement Correction Method for Accurate and Low-Cost Monitoring of Particulate Matter Pollutants

  Publikacja

  • M. Wójcikowski
  • B. Pankiewicz
  • A. Bekasiewicz
  • T. Cao
  • J. Lepioufle
  • I. Vallejo
  • R. Odegard
  • H. Phuong Ha

  - MEASUREMENT - Rok 2022

  Air pollution involves multiple health and economic challenges. Its accurate and low-cost monitoring is important for developing services dedicated to reduce the exposure of living beings to the pollution. Particulate matter (PM) measurement sensors belong to the key components that support operation of these systems. In this work, a modular, mobile Internet of Things sensor for PM measurements has been proposed. Due to a limited...

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• Analysis of exhaled breath for dengue disease detection by low-cost electronic nose system

  Publikacja

  • J. Smulko
  • T. Chludziński
  • T. Majchrzak
  • A. Kwiatkowski
  • S. Borys
  • A. Lisset Jaimes-Mogollón
  • C. Manuel Durán-Acevedo
  • O. Geovanny Perez-Ortiz
  • R. Ionescu

  - MEASUREMENT - Rok 2022

  This paper presents a procedure and a set-up of an electronic nose system analyzing exhaled breath to detect the patients suffering from dengue – a mosquito-borne tropical disease. Low-power resistive gas sensors (MiCS-6814, TGS8100) were used to detect volatile organic compounds (VOCs) in the exhaled breath. The end-tidal phase of patients exhaled breath was collected with a BioVOCTM breath sampler. Two strategies were assessed...

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

  Publikacja

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

  - MEASUREMENT - Rok 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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• Determination of stepped plate thickness distribution using guided waves and compressed sensing approach

  Publikacja

  • B. Zima

  - MEASUREMENT - Rok 2022

  Guided waves recently have attracted significant interest as a very promising research area. The signals registered by a specially designed sensor network are processed to assess the state of the tested structure. Despite the constant development of novel damage detection algorithms employing guided waves, the phenomenon of wave propagation still needs detailed recognizing and understanding for the further progress of non-destructive...

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• Diamond protection for reusable ZnO coated fiber-optic measurement head in optoelectrochemical investigation of bisphenol A

  Publikacja

  • M. Szczerska
  • M. Kosowska
  • P. Listewnik
  • M. Rycewicz
  • M. Bechelany
  • Y. Fleger
  • D. Fixler
  • P. Jakóbczyk

  - MEASUREMENT - Rok 2022

  Due to the global problem with plastic contaminating the environment, with bisphenol A (BPA) being one of the highest demand, effective monitoring and purification of the pollutants are required. The electrochemical methods constitute a good solution but, due to polymerization of electrochemical oxidation bisphenol A products and their adsorption to the surfaces, measurement head elements are clogged by the formed film. In this...

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• Electronic nose algorithm design using classical system identification for odour intensity detection

  Publikacja

  • T. Zubowicz
  • K. Armiński
  • B. Szulczyński
  • J. Gębicki

  - MEASUREMENT - Rok 2022

  The two elements considered crucial for constructing an efficient environmental odour intensity monitoring systems are sensors and algorithms typically addressed to as electronic nose sensor (e-nose). Due to operational complexity of biochemical sensors developed in human bodies algorithms based on computational methods of artificial intelligence are typically considered superior to classical model based approaches in development...

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• Focused ion beam-based microfabrication of boron-doped diamond single-crystal tip cantilevers for electrical and mechanical scanning probe microscopy

  Publikacja

  • E. Gacka
  • P. Kunicki
  • A. Sikora
  • R. Bogdanowicz
  • M. Ficek
  • T. Gotszalk
  • I. W. Rangelow
  • K. Kwoka

  - MEASUREMENT - Rok 2022

  In this paper, the fabrication process and electromechanical properties of novel atomic force microscopy probes utilising single-crystal boron-doped diamond are presented. The developed probes integrate scanning tips made of chemical vapour deposition-grown, freestanding diamond foil. The fabrication procedure was performed using nanomanipulation techniques combined with scanning electron microscopy and focused ion beam technologies....

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• Identification of Unstable Reference Points and Estimation of Displacements Using Squared Msplit Estimation

  Publikacja

  • M. Zienkiewicz

  - MEASUREMENT - Rok 2022

  The article presents a new version of the method for estimating parameters in a split functional model, which enables the determination of displacements of geodetic network points with constrained datum. The main aim of the study is to present theoretical foundations of Msplit CD estimation and its basic properties and possible applications. Particular attention was paid to the efficacy of the method in the context of geodetic...

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• Impact of cross-section centers estimation on the accuracy of the point cloud spatial expansion using robust M-estimation and Monte Carlo simulation

  Publikacja

  • P. S. Dąbrowski
  • M. Zienkiewicz

  - MEASUREMENT - Rok 2022

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• Impact of cross-section centers estimation on the accuracy of the Point cloud spatial expansion using robust M-estimation and Monte Carlo simulation

  Publikacja

  • P. Dąbrowski
  • M. Zienkiewicz

  - MEASUREMENT - Rok 2022

  The point cloud spatial expansion (PCSE) method creates an alternative form of representing the shape of symmetrical objects and introduces additional descriptive geometric parameters. An important element of the procedure is determining the course of the axis of symmetry of cylindrical objects based on cross-sections of point clouds. Outliers occurring in laser measurements are of great importance in this case. In this study,...

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• Internal imaging of concrete fracture based on elastic waves and ultrasound computed tomography

  Publikacja

  • M. Zielińska
  • M. Rucka

  - MEASUREMENT - Rok 2022

  The condition assessment of concrete structures belongs to the greatest challenges of non-destructive testing. Monitoring the fracture process of concrete and detecting cracks at the earliest possible stage is a vital aspect to ensure the safety of civil engineering objects. The use of ultrasound tomography enables imaging the internal structure of a tested element. This study aims at the visualization of fracture damage in concrete...

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• Measurement method for capacitive sensors for microcontrollers based on a phase shifter

  Publikacja

  • Z. Czaja

  - MEASUREMENT - Rok 2022

  A complete measurement method dedicated to capacitive sensors has been developed. It includes the development of hardware (an analogue interface circuit for microcontrollers with built-in times/counters and analogue comparators) and software (a measurement procedure and a systematic error calibration (correction) algorithm which is based on a calibration dictionary). The interface circuit consists of a low-pass filter and a phase...

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• Novel PCSE-based approach of inclined structures geometry analysis on the example of the Leaning Tower of Pisa

  Publikacja

  • P. S. Dąbrowski

  - MEASUREMENT - Rok 2022

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• Reliability of acicular grindable thermocouples for transient temperature measurements at sliding contacts

  Publikacja

  • O. Nosko
  • Y. Tsybrii
  • W. Tarasiuk
  • A. Nosko

  - MEASUREMENT - Rok 2022

  Acicular grindable thermocouples represent an interesting and prospective technique of temperature measurements at sliding contacts. This study aimed at the investigation of their reliability and accuracy as applied to the friction materials of various classes in contact with steel. The tests were conducted on a pin-on-disc tribometer under stationary and transient regimes. The experimental results were validated by comparing the...

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Rok 2021

• A measurement method for lossy capacitive relative humidity sensors based on a direct sensor-to-microcontroller interface circuit

  Publikacja

  • Z. Czaja

  - MEASUREMENT - Rok 2021

  A new time-domain measurement method for determining the capacitance and resistance values of lossy relative humidity capacitive sensors is presented. The method is based on a direct sensor-to-microcontroller interface for microcontrollers with internal analog comparators and timers. The interface circuit consists only of four reference resistors (two reference resistors if a microcontroller includes a voltage reference source),...

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• Baseline-free debonding detection in reinforced concrete structures by elastic wave propagation

  Publikacja

  • B. Zima
  • R. Kędra

  - MEASUREMENT - Rok 2021

  The article presents the results of the numerical and experimental analysis concerning wave propagation in reinforced concrete (RC) beams with various extent of debonding between the steel rod and concrete cover. The main aim of the paper was to consider the unsolved research gaps, which considerably limit the application of wave-based methods in practice. The propagation of the flexural wave modes excited and registered on the...

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• Comparative analysis of positioning accuracy of Garmin Forerunner wearable GNSS receivers in dynamic testing

  Publikacja

  • T. Szot
  • C. Specht
  • P. S. Dąbrowski
  • M. Specht

  - MEASUREMENT - Rok 2021

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• Current divider-based nanosecond high current pulse measuring systems

  Publikacja

  • M. Nowak
  • K. Jakubiuk
  • D. Kowalak
  • M. Pikoń
  • J. Czucha
  • J. Starzyński

  - MEASUREMENT - Rok 2021

  This paper presents the analysis of the new approach to the measurement methodology of significant values (in order of hundreds of kA) and huge steepness (in order of MA/μs) current pulses based on current dividers along with a comparison of the various types transducers suitability in measuring systems with such extreme parameters. Such dividers are used to extend the measurement ranges of current transducers with limited current...

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• Damage detection in plates based on Lamb wavefront shape reconstruction

  Publikacja

  • B. Zima

  - MEASUREMENT - Rok 2021

  Many of the current studies in the area of damage detection using elastic wave propagation are based on deploying sensor networks with a large number of piezoelectric transducers to detect small-size cracks. A major limitation of these studies is that cracks are usually larger and have different shapes in real cases. Moreover, using a large number of sensing nodes for damage detection is both costly and computationally intensive....

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