Academic literature on the topic 'Tri-axial Hall effect sensors'

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Journal articles on the topic "Tri-axial Hall effect sensors"

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Andrés, Fernando Restrepo-Álvarez, Franco-Mejía Edinson, Cadavid-Ramírez Héctor, and Rafael Pinedo-Jaramillo Carlos. "A simple geomagnetic field compensation system for uniform magnetic field applications." Revista Facultad de Ingeniería –redin-, no. 83 (June 26, 2017): 65–71. https://doi.org/10.17533/udea.redin.n83a09.

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In this paper a simple geomagnetic field compensation system for uniform magnetic field applications of low magnitude and frequency is presented. The compensation system is based on an array of Tri-axial Square Helmholtz (TSH) coils, an array of tri-axial Hall effect sensors and a microcontroller system in order to compensate the small variations of the ambient magnetic fields (magnitudes close to the geomagnetic field between 25 μT and 65 μT) on a volume of interest. The geomagnetic field experimentally obtained of 39.5 μT was compensated, achieving a uniform magnetic field of approx
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Shams, Sadegh, Al Ghorbanpoor, Shibin Lin, and Hoda Azari. "Nondestructive Testing of Steel Corrosion in Prestressed Concrete Structures using the Magnetic Flux Leakage System." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 41 (2018): 132–44. http://dx.doi.org/10.1177/0361198118773920.

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The Magnetic Flux Leakage (MFL) method can be nondestructively used to disclose the location and extent of corrosion or fracture in prestressed strands in concrete structures. In this study, parameters with the greatest effect on the performance of the MFL system are investigated using numerical simulations. The MFL system under study is based on two permanent magnets to magnetize embedded strands and Hall-effect sensors to detect normal magnetic flux leakage. The system is assessed using magnetostatic and transient numerical analysis to effectively simulate the MFL system. Results have been v
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Wang, Liang, Xiaoyan Tang, Zhong Yun, and Chuang Xiang. "Analysis of a Novel Magnetic-Hydrodynamic Double Levitated Motor for an Implantable Axial Flow Blood Pump." Shock and Vibration 2020 (December 10, 2020): 1–15. http://dx.doi.org/10.1155/2020/8833994.

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This paper presents a novel design for a bearingless axial flow blood pump based on the magnetic-hydrodynamic double levitated concept. In the axial direction, the magnetic levitation system consisted of two pairs of permanent magnet rings offsets the force of fluid. The hydrodynamic shell mounted on the impeller rotor is designed for generating dynamic pressure, which can balance the radial force like gravity when the blood pump is working. Because of the unsteady force and torque acting on the rotor and the passive suspension, the position of the rotor is not steady. The suspension force, st
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Zhang, Xiaodong, Moein Mehrtash, and Mir Behrad Khamesee. "Dual-Axial Motion Control of a Magnetic Levitation System Using Hall-Effect Sensors." IEEE/ASME Transactions on Mechatronics 21, no. 2 (2016): 1129–39. http://dx.doi.org/10.1109/tmech.2015.2479404.

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Azari, Hoda, Al Ghorbanpoor, and Sadegh Shams. "Development of Robotic Nondestructive Testing of Steel Corrosion of Prestressed Concrete Bridge Girders using Magnetic Flux Leakage System." Transportation Research Record: Journal of the Transportation Research Board 2674, no. 8 (2020): 466–76. http://dx.doi.org/10.1177/0361198120925471.

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This paper describes the development and validation of a new magnetic-based corrosion detection device integrated in a robotic system. The system nondestructively scans the length of AASHTO-type prestressed concrete I-girders of bridges. The system includes two primary subsystems: an independent magnetic flux leakage (MFL) system for nondestructive testing, and a robotic rover to transport the MFL system along the girder’s length with navigation around transverse diaphragms. The MFL unit inspects prestressing steel strands embedded in concrete and detects cross-section losses caused by corrosi
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Gardner, T. N., M. Evans, and P. J. Kyberd. "An Instrumented Spacial Linkage for Monitoring Relative Three-Dimensional Motion Between Fracture Fragments." Journal of Biomechanical Engineering 118, no. 4 (1996): 586–94. http://dx.doi.org/10.1115/1.2796048.

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A mechanical linkage with electro-magnetic sensors (a displacement transducer) is described, which may be used to measure accurately the relative motion at a bony junction such as a fracture. The linkage may be fixed to bone screws of externally-fixated fractures during routine patient activity, to measure three-dimensional inter fragmentary displacements arising from dynamic loading. Movements of the linkage are monitored by six Hall Effect devices for the six degrees of freedom (three orthogonal translations and three rotations about the translating axes). Measurements are made within error
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Yu, Hsing Cheng, Chih Chiang Wang, Chau Shin Jang, Wen Yang Peng, and T. S. Liu. "Blowers of Vacuum Cleaners Utilizing Coreless and Sensorless Axial-Flux Motors with Edge-Wire Coils." Applied Mechanics and Materials 284-287 (January 2013): 1770–77. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.1770.

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Axial-flux motors (AFM) generally have higher torque and power densities, smaller volume and weight, larger diameter to length ratio, and compact construction for the same power level than radial-flux motors (RFM). Hence, AFM are attractive alternative to conventional RFM for applying in low torque and speed servo control systems. Additionally, magnetic Hall-effect sensors and commutation circuits are unsuitable for environment with high temperature and restricted space, so sensorless driving control method of AFM by detecting zero-crossing of back-EMF signals has been achieved. Furthermore, c
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Gil-Martín, Manuel, Javier López-Iniesta, Fernando Fernández-Martínez, and Rubén San-Segundo. "Reducing the Impact of Sensor Orientation Variability in Human Activity Recognition Using a Consistent Reference System." Sensors 23, no. 13 (2023): 5845. http://dx.doi.org/10.3390/s23135845.

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Sensor- orientation is a critical aspect in a Human Activity Recognition (HAR) system based on tri-axial signals (such as accelerations); different sensors orientations introduce important errors in the activity recognition process. This paper proposes a new preprocessing module to reduce the negative impact of sensor-orientation variability in HAR. Firstly, this module estimates a consistent reference system; then, the tri-axial signals recorded from sensors with different orientations are transformed into this consistent reference system. This new preprocessing has been evaluated to mitigate
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Bennasar, Mohamed, Blaine A. Price, Daniel Gooch, Arosha K. Bandara, and Bashar Nuseibeh. "Significant Features for Human Activity Recognition Using Tri-Axial Accelerometers." Sensors 22, no. 19 (2022): 7482. http://dx.doi.org/10.3390/s22197482.

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Activity recognition using wearable sensors has become essential for a variety of applications. Tri-axial accelerometers are the most widely used sensor for activity recognition. Although various features have been used to capture patterns and classify the accelerometer signals to recognise activities, there is no consensus on the best features to choose. Reducing the number of features can reduce the computational cost and complexity and enhance the performance of the classifiers. This paper identifies the signal features that have significant discriminative power between different human acti
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Straczkiewicz, Marcin, Nancy W. Glynn, and Jaroslaw Harezlak. "On Placement, Location and Orientation of Wrist-Worn Tri-Axial Accelerometers during Free-Living Measurements." Sensors 19, no. 9 (2019): 2095. http://dx.doi.org/10.3390/s19092095.

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Wearable accelerometers have recently become a standalone tool for the objective assessment of physical activity (PA). In free-living studies, accelerometers are placed by protocol on a pre-defined body location (e.g., non-dominant wrist). However, the protocol is not always followed, e.g., the sensor can be moved between wrists or reattached in a different orientation. Such protocol violations often result in PA miscalculation. We propose an approach, PLOE (“Placement, Location and Orientation Evaluation method”), to determine the sensor position using statistical features from the raw accele
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Book chapters on the topic "Tri-axial Hall effect sensors"

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Coutinho Roberto Q., Santos Jr. Olavo F., and Severo Ricardo N.F. "Description and Calibration of Triaxial tests with internal measurement of displacement on artificially cemented lateritic soil." In Advances in Soil Mechanics and Geotechnical Engineering. IOS Press, 2015. https://doi.org/10.3233/978-1-61499-601-9-454.

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This work is part of a larger study that was conducted in order to identify the instability mechanisms of a cliff in northeastern Brazil. Previous studies indicated that the stability of cliffs in this region is guaranteed by natural cementation between soil particles. A comprehensive study of the effects of cementation on the mechanical behavior of the soil was carried out in the doctoral thesis of Severo (2011) in a joint research UFPE-UFRN. Drained triaxial tests on artificially cemented samples were performed. The purpose of this article is to describe the equipment, the methodology develo
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Conference papers on the topic "Tri-axial Hall effect sensors"

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Lee, Jaehyun. "A novel method for improving productivity of axial-type powerpack with hall-effect magnetic position sensor on electric power steering." In 2017 IEEE International Electric Machines and Drives Conference (IEMDC). IEEE, 2017. http://dx.doi.org/10.1109/iemdc.2017.8002240.

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Jenny, P., C. Lenherr, A. Kalfas, and R. S. Abhari. "Effect of Hot Streak Migration on Unsteady Blade Row Interaction in an Axial Turbine." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-23034.

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This paper presents an experimental study of the effect of unsteady blade row interaction on the migration of hot streaks in an axial turbine. The hot streaks can cause localised hot spots on the blade surfaces in a high-pressure turbine, leading to high heat loads and potentially catastrophic failure of the blades. An improved understanding of the effect of unsteady blade row interaction on an inlet temperature distortion is of crucial importance. The impact of hot streaks on the aerodynamic performance of a turbine stage is also not well understood. In the current experiment, the influence o
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Maitra, E. K., and M. F. Al Dushaishi. "Experimental Visualization of the Effect of Flow Rate on Downhole Drilling Vibration." In IADC/SPE International Drilling Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/217742-ms.

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Abstract Downhole drilling dynamic data has proven to be valuable operational information for vibration mitigation and drilling optimization. Yet, the downhole dynamic behavior of the BHA is often misinterpreted. Most downscaled experimental investigations neglect the changes in dynamic field conditions due to fluid flow. The objective of this work is to establish a visual understanding of downhole vibration data analysis in the presence of fully circulated fluid flow and to investigate the effect of flow rate on the BHA lateral trajectory, using a scaled laboratory BHA. A mechanically downsca
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Lall, Pradeep, Nokibul Islam, and Jeff Suhling. "Reliability of BGA and CSP on Metal-Backed Printed Circuit Boards in Harsh Environments." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-62320.

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In this study, the effect of metal-backed boards on the interconnect reliability has been evaluated. Previous studies on electronic reliability for automotive environments have addressed the damage mechanics of solder joints in plastic ball-grid arrays on non-metal backed substrates [Lall et. al 2003, Syed et. al 1996, Evans et. al 1997, Mawer et. al 1999] and ceramic BGAs on non-metal backed substrates [Darveaux et. al 1992, 1995, 2000]. Delamination of PCBs from metal backing has also been investigated. Increased use of sensors and controls in automotive applications has resulted in signific
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