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Bozali, B. (author), Ghodrat, S. (author), Jansen, K.M.B. (author)As an emerging technology, smart textiles have attracted attention for rehabilitation purposes or to monitor heart rate, blood pressure, breathing rate, body posture, as well as limb movements. Traditional rigid sensors do not always provide the desired level of comfort, flexibility, and adaptability. To improve this, recent research focuses...journal article 2023
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Chen, Y. (author), Castro Heredia, L.C. (author), Smit, J.J. (author), Ghaffarian Niasar, M. (author), Ross, Robert (author)Partial discharge (PD) detection is a standardized technique to qualify the insulation condition in power equipment. The main purpose of the article is to evaluate the performance of an extra high-sensitivity adapted giant magneto-resistive (xMR) sensor for non-contacting PD detection. First, compensation and signal conditioning circuits of...journal article 2023
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Mo, J. (author), LI, J. (author), Zhang, Y. (author), Romijn, J. (author), May, Alexander (author), Erlbacher, Tobias (author), Zhang, Kouchi (author), Vollebregt, S. (author)In this work, a highly linear temperature sensor based on a silicon carbide (SiC) p-n diode is presented. Under a constant current biasing, the diode has an excellent linear response to the temperature (from room temperature to 600°C). The best linearity (coefficient of determination ${R}^{{2}}$ = 99.98%) is achieved when the current density...journal article 2023
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Chen, Y. (author), Castro Heredia, L.C. (author), Smit, J.J. (author), Ghaffarian Niasar, M. (author), Ross, Robert (author)Partial discharges (PD) detection is an effective diagnostic method to assess the insulation condition of electrical power equipment in the high-voltage laboratory or field tests. This paper presents a non-contacting PD detection method for power equipment. The method is based on an extra high-sensitivity adapted giant magneto-resistive (xMR)...journal article 2023
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Xiao, Y. (author), Rans, C.D. (author), Zarouchas, D. (author), Benedictus, R. (author)Embedding fiber optic sensors (FOSs) within parts for strain measurement is attracting widespread interest due to its great potential in the field of structural health monitoring (SHM). This work proposes a novel method of embedding FOSs using capillaries within solid structures and investigates fiber positions and orientation uncertainties...journal article 2023
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Vahs, Matti (author), Pek, Christian (author), Tumova, Jana (author)Ensuring safety in real-world robotic systems is often challenging due to unmodeled disturbances and noisy sensors. To account for such stochastic uncertainties, many robotic systems leverage probabilistic state estimators such as Kalman filters to obtain a robot's belief, i.e. a probability distribution over possible states. We propose...journal article 2023
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AbuHamra, Nada (author), Abunahla, H.N. (author), Ali, Ashraf (author), Waheed, Waqas (author), Mahmoud, Saleh T. (author), AlAzzam, Anas (author), Mohammed, Baker (author)In recent years, there has been a growing interest in investigating the potential of emerging memristor (MR) devices for gas sensing applications, particularly at room temperature. This article reports on a planar Au/reduced graphene oxide (rGO)/Au memristive hydrogen sensor, fabricated on a cost-effective cyclic olefin copolymer (COC)...journal article 2023
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Hall, Drew A. (author), Makinwa, K.A.A. (author), Jang, Taekwang (author)There has been a long-standing interest in controlling and instrumenting the human body. Whether to restore lost function with neural prosthetics, monitor blood glucose levels, or augment human capabilities, there are countless opportunities for sensors inside ( e.g., ingestible, injectable, and implantable) and outside ( e.g., wearable) the...journal article 2023
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Hofland, Bas (author), Houtzager, Daan (author), Caldera, Ganga (author), Antonini, A. (author), van Gent, M.R.A. (author), Bakker, Pieter (author), van der Lem, Cock (author)Single layer randomly placed armour units are used in many rubble mound breakwaters around the world. For these armour layers first extraction of units starts at high loads and can then progress quickly. Before the first extraction of a unit, typically no quantitative description of damage can be given. But additional to extraction, breakage of...journal article 2023
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Vaccaro, D. (author), Akamatsu, H. (author), Gottardi, L. (author), Bruijn, M. P. (author), van der Linden, A. J. (author), van Leeuwen, B. J. (author), van der Hulst, P. (author), de Vries, C. P. (author), Gao, J.R. (author)We report our most recent progress and demonstration of a frequency domain multiplexing (FDM) readout technology for transition-edge sensor (TES) arrays, both of which we have been developing in the framework of the X-IFU instrument on board the future Athena X-ray telescope. Using Ti/Au TES micro-calorimeters, high-Q LC filters and analog...journal article 2023
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de Koning, C.M.M. (author), Jamshidnejad, A. (author)Search-and-rescue (SaR) in unknown environments is a crucial task with life-threatening risks. SaR requires precise, optimal, and fast decisions to be made. Robots are promising candidates expected to execute various SaR tasks autonomously. While humans use heuristics to effectively deal with uncertainties of SaR, optimisation of multiple...journal article 2023
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Riccioli, F. (author), Huijer, A.J. (author), Grasso, Nicola (author), Rizzo, Cesare M. (author), Pahlavan, Lotfollah (author)Measurement of transient pressure distribution on maritime structures is important for the assessment of the hydrodynamic loads applied. The commonly used pressure sensors are mostly bulky, need to be bolted to the structure, and/or only provide point-wise measurements. In this paper, an elastic matrix layer with a network of embedded...journal article 2023
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Baluchová, S. (author), Mamaloukou, A. (author), Koldenhof, Rombert H.J.M. (author), Buijnsters, J.G. (author)In this work, non-modified boron-doped diamond (BDD) was employed first time ever as the sensing material for the in-depth voltammetric study of the antiretroviral drug nevirapine (NVP) used to treat HIV infections. Two types of electrode surface pre-treatments, anodic oxidation and alumina-polishing, yielded BDD of different surface...journal article 2023
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Lindeman, Pim (author), Steijlen, A.S.M. (author), Bastemeijer, J. (author), Bossche, A. (author)One of the major challenges associated with e-textiles is the connection between flexible fabric-integrated wires and rigid electronics. This work aims to increase the user experience and mechanical reliability of these connections by foregoing conventional galvanic connections in favor of inductively coupled coils. The new design allows for...journal article 2023
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Ciszewski, M.G. (author), Söhl, J. (author), Jongbloed, G. (author)The past decade has seen an increased interest in human activity recognition based on sensor data. Most often, the sensor data come unannotated, creating the need for fast labelling methods. For assessing the quality of the labelling, an appropriate performance measure has to be chosen. Our main contribution is a novel post-processing method...journal article 2023
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de Vries, W.H.K. (author), van der Slikke, R.M.A. (author), van Dijk, M.P. (author), Arnet, Ursina (author)Daily wheelchair ambulation is seen as a risk factor for shoulder problems, which are prevalent in manual wheelchair users. To examine the long-term effect of shoulder load from daily wheelchair ambulation on shoulder problems, quantification is required in real-life settings. In this study, we describe and validate a comprehensive and...journal article 2023
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Bannenberg, L.J. (author)Here, a method to suppress drift in intensity-modulated sensors is presented that preserves the advantages of such sensors including simplicity and low-cost components. This method is illustrated using metal hydride-based optical hydrogen sensors that can reliably, accurately, and quickly sense hydrogen across a large concentration range....journal article 2023
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Schneider, Jan (author), Mat Sanusi, Khaleel Asyraaf (author), Limbu, B.H. (author), Schmitz, Marcel (author), Schiffner, Daniel (author)This paper presents an approach that helps distinguish expert and novice performance easily by observing the sensor data without having to understand nor apply models to the sensor signal. The method consists of plotting the sensor data and identifying irregularities. We corroborate, with the help of sensors, that expert performances are...book chapter 2023
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Shooshtari, M. (author), Vollebregt, S. (author), Vaseghi, Yas (author), Rajati, Mahshid (author), Pahlavan, Saeideh (author)Detection of hazardous toxic gases for air pollution monitoring and medical diagnosis has attracted the attention of researchers in order to realize sufficiently sensitive gas sensors. In this paper, we fabricated and characterized a Titanium dioxide (TiO2)-based gas sensor enhanced using the gold nanoparticles. Thermal oxidation and sputter...journal article 2023
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Abarca, Accel (author), Theuwissen, A.J.P.A.M. (author)This paper presents a novel technique for dark current compensation of a CMOS image sensor (CIS) by using in-pixel temperature sensors (IPTSs) over a temperature range from −40 °C to 90 °C. The IPTS makes use of the 4T pixel as a temperature sensor. Thus, the 4T pixel has a double functionality, either as a pixel or as a temperature sensor....journal article 2023