Patent application number | Description | Published |
20100301846 | MAGNETIC SPEED SENSOR AND METHOD OF MAKING THE SAME - An speed sensor for a rotating shaft includes a plurality of magnetic portions on the shaft that output a magnetic field from each of the magnetic portions, wherein the magnetic portions are integrally formed in the shaft by magnetically polarizing the shaft material itself. At least one magnetic field sensor is positioned proximate to the shaft for detecting the magnetic field from each of the magnetic portions and for outputting a signal corresponding to the angular speed of the shaft as the shaft rotates. The signal is useful for calculating the angular speed of the shaft, and the calculated angular speed value is useful for things like adjusting the angular speed of the shaft, monitoring the performance of the system in which the shaft is used, and for other purposes. | 12-02-2010 |
20110197349 | Magnetic Force Enhanced Drain Plug - A drain plug comprising of a plurality of polarity magnets arranged in an alternating fashion. The plurality of polarity magnets are arranged in line with the drain plug. A magnet cover envelops the plurality of polarity magnets for easy cleaning. The unique alternating arrangements of the plurality of polarity magnets help increase the magnetic gradient for stronger attraction forces for metal wear particles. The use of a plurality of polarity magnets also increase the surface area where the metal particles can be held. | 08-18-2011 |
20120074933 | MAGNETOELASTIC TORQUE SENSOR WITH AMBIENT FIELD REJECTION - The present invention involves a method and apparatus for canceling the effects of magnetic field noise in a torque sensor by placing three sets of magnetic field sensors around a shaft, the first set of field sensors being placed in the central region of the shaft and the second and third sets of field sensors being placed on the right side and left side of the field sensors placed at the central region, respectively. A torque-induced magnetic field is not cancelled with this arrangement of field sensors but a magnetic near field from a near field source is cancelled. | 03-29-2012 |
20130088218 | CONTACTLESS MAGNETIC LINEAR POSITION SENSOR - In a position sensor, two field sensors are placed along a line parallel to the movement to be detected. Two magnets are placed at an angle to each other to generate a magnetic field such that their position is a linear or approximately linear function of the difference between the outputs of the sensors. | 04-11-2013 |
20130091959 | MAGNETIC TORQUE SENSOR FOR TRANSMISSION CONVERTER DRIVE PLATE - A magnetic torque sensing device having a disk-shaped member with a magnetoelastically active region. The magnetoelastically active region has oppositely polarized magnetically conditioned regions with initial directions of magnetization that are perpendicular to the sensitive directions of magnetic field sensor pairs placed proximate to the magnetically active region. Magnetic field sensors are specially positioned in relation to the disk-shaped member to accurately measure torque while providing improved RSU performance and reducing the detrimental effects of compassing. | 04-18-2013 |
20130091960 | MAGNETIC TORQUE SENSOR FOR TRANSMISSION CONVERTER DRIVE PLATE - A magnetic torque sensing device having a disk-shaped member with a magnetoelastically active region. The magnetoelastically active region has a magnetically conditioned region with an initial direction of magnetization that is perpendicular to the sensitive directions of magnetic field sensor pairs placed proximate to the magnetically active region. Magnetic field sensors are specially positioned in relation to the disk-shaped member to accurately measure torque while providing improved RSU performance and reducing the detrimental effects of compassing. | 04-18-2013 |
20130232764 | MAGNETIC TORQUE SENSOR FOR TRANSMISSION CONVERTER DRIVE PLATE - A magnetic torque sensing device having a disk-shaped member with a magnetoelastically active region. The magnetoelastically active region has oppositely polarized magnetically conditioned regions with initial directions of magnetization that are perpendicular to the sensitive directions of magnetic field sensor pairs placed proximate to the magnetically active region. Magnetic field sensors are specially positioned in relation to the disk-shaped member to accurately measure torque while providing improved RSU performance and reducing the detrimental effects of compassing. | 09-12-2013 |