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Angular displacement

About: Angular displacement is a research topic. Over the lifetime, 5102 publications have been published within this topic receiving 46081 citations. The topic is also known as: rotational displacement.


Papers
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Patent
03 Mar 1977
TL;DR: In this paper, a rotating roller is mounted for universal angular movement relatively to its nominal longitudinal axis of rotation so as to be angularly displaced by the weight and movement of the conveyor belt when the belt shifts away from running true.
Abstract: A roller mounted for universal angular movement relatively to its nominal longitudinal axis of rotation so as to be angularly displaced by the weight and movement of the conveyor belt when the conveyor belt shifts away from running true. This angular displacement brings the rotating roller into engagement with reaction faces provided on the frame of the conveyor and causes the roller to be reactively displaced in a direction to restore the belt to running true.

16 citations

Journal ArticleDOI
TL;DR: A measurement device for obtaining the kinematic characterisation and isometric loading of ankle joints under different working conditions and the assessment of the functionality of the lower leg in both mechanical and myo-electrical terms is described.
Abstract: The paper describes a measurement device for obtaining the kinematic characterisation and isometric loading of ankle joints under different working conditions. Non-invasive,in vivo experiments can be conducted with this experimental apparatus, the potential of which could be usefully exploited in basic biomedical research, prosthesis design, clinical applications, sports medicine and rehabilitation. The device determines the 3D movement of the foot with respect to the shank and evaluates the torques and moments around the three articular axes in relation to any desired angular position of the ankle complex. When integrated with superficial electromyographic techniques and electrical stimulation, it allows the assessment of the functionality of the lower leg in both mechanical and myo-electrical terms. The paper reports the main mechanical and electronic features of the device (high linearity; maximum moment ranges ±300 Nm for flexion-extension, ±35 Nm for both pronation-supination and internal-external rotation; angular ranges: ±100° of dorsi-plantar flexion, ±50° of internal-external rotation and prono-supination; linear ranges: ±25 mm along each axis). Results from a healthy volunteer, under voluntary or stimulated conditions, helped in testing its operatability, reliability, robustness, repeatability and effectiveness. Preliminary simplified protocols have been also applied to 20 healthy volunteers, and the main results were 80.8±11.9° of internal-external rotation, 46.2±9.1° of prono-supination and 74.6±13.1° of flexion-extension. Torques and moments were normalised with respect to a body mass index of 30. The maximum plantar flexion moment (57.5±21.3 Nm) was measured with the foot at 15° of dorsal flexion; the maximum dorsal flexion moment (50.2±20.3 Nm) was measured with the foot at 15° of plantar flexion.

16 citations

Journal ArticleDOI
TL;DR: The proposed device and algorithm provide an accurate measurement of wrist angular displacement in two planes, with a minimum of preparation or calibration, according to a bench evaluation and comparison to an electromagnetic tracking system.

16 citations

Patent
15 Jun 1989
TL;DR: In this paper, the angular position of rotation of a steering wheel hub of a motor vehicle relative to a steering shaft is adjusted by a set of teeth distributed uniformly over the inner and outer periphery of the bushing.
Abstract: A device for adjusting the angular position of rotation of a steering wheel hub of a motor vehicle relative of a steering shaft utilizing a bushing which is located between these parts and connected to each of these by sets of teeth distributed uniformly over the inner and outer periphery of the bushing and wherein these teeth offer a large number of possibilities of angular adjustment as a result of the engagement of one set of teeth with the steering wheel hub for a coarse adjustment and as a result of the engagement of the other set of teeth with the steering shaft for an even larger possibility of minor angular adjustment.

16 citations

Patent
19 Nov 2013
TL;DR: In this paper, an angle sensor is arranged on-axis with respect to the rotation axis of a magnet that generates a magnetic field that can be detected by the angle sensor and analyzed to determine an angular position of the magnet.
Abstract: Embodiments relate to magnetic field sensors, such as gradiometric magnetic field angle sensors with generally on-axis arrangements of sensor elements relative to a rotation axis of a magnet In one embodiment, an angle sensor is arranged on-axis with respect to the rotation axis of a magnet that generates a magnetic field that can be detected by the angle sensor and analyzed to determine an angular position of the magnet The sensor can comprise a plurality of sensor elements, such as two sensor elements, arranged on a substrate or die in a sensor package As it rotates, the magnet generates a magnetic field, such as an inhomogenous magnetic field having a component perpendicular to the rotation axis and acting on the angle sensor The plurality of sensor elements can detect this and other components, for example as a gradiometric sensor in which each element senses at least one component at its respective location, and the signals from the elements are compared to estimate or determine an angular position or degree of movement of the magnet

16 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202339
202282
2021106
2020164
2019224
2018212