Matches 1 - 26 out of 26
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7296469 Magnetofluidic accelerometer with active suspension  
A method of measuring acceleration includes suspending an inertial body using a magnetic fluid; generating a magnetic field within the magnetic fluid; modulating the magnetic field to counteract a...
7292223 Location tracking device  
A location tracking device utilizing an acceleration sensor is described. The acceleration sensor includes an inertial body in magnetic fluid that is contained in a closed volume vessel. The...
7178399 Housing for magnetofluidic accelerometer  
A housing for a magnetofluidic sensor where the sensor has a plurality of drive magnet assemblies, magnetic fluid and an inertial body. The housing has a plurality of ports for securing respective...
7061469 Method of data input into a computer  
A computer input device and method used to input coordinates and three-dimensional graphical information into a computer. The device includes an acceleration sensor that has a fixed volume vessel...
6842671 Systems and methods for controlling handling characteristics of a tire  
One embodiment of the present invention relates to systems and methods for controlling handling characteristics of a tire. Another embodiment of the present invention relates to a tire having...
6628017 Ferrofluidic, electromagnetic power supply  
A ferrofluidic electromagnetic power supply firmly attached to an agitating object, such as the interior of a vehicular tire generates electric current in an electrical coil deposited between and...
6504271 Ferrofluidic, electromagnetic power generator  
A ferrofluidic electromagnetic power generator installed within a rotating object, such as the interior of a vehicular tire generates electric current in an electrical coil wound about an...
6374673 Velocity sensor  
A velocity sensor is disclosed comprising a housing, a ferromagnetic fluid which substantially fills the housing, and a magnetic proof mass suspended in the ferromagnetic fluid. The magnetic proof...
6220095 Sensor for measuring yaw, pitch or roll movements  
A sensor for measurement of yawing motion, pitching or rolling motion, particularly as suited for use in motor vehicle control systems, contains an annular hollow object (1, 2, 4) in which a...
6062081 Extended range accelerometer  
A low noise, extended dynamic range accelerometer useful for sensitive seismic observations. The accelerometer's extended range is obtained by utilizing a single opposing magnetic field to...
5908987 Sensor employing a sliding ferrofluid mass in a coated, non-wetting, housing  
A ferrofluid sensor assembly includes a closed housing containing a movable inductance core material that is isolated from the inner walls of the housing by an isolating material. The isolating...
5780741 Sensor employing a sliding magnet suspended on ferrofluid  
A ferrofluid sensor assembly includes a permanent magnet which is supported in a hermetically-sealed housing by ferrofluid rings at each end of the magnet. However, the housing is large enough that...
5679973 Lateral hall element  
A lateral Hall element includes a substrate, a first-conductivity type active layer formed on the substrate, a first second-conductivity type semiconductor layer formed to surround the...
5572058 Hall effect device formed in an epitaxial layer of silicon for sensing magnetic fields parallel to the epitaxial layer  
A vertical Hall element is formed within the epitaxial layer of a semiconductor and isolated from other components by a P type isolation diffusion. A position defining diffusion is used to...
5092171 Acceleration sensor with differential capacitance  
In an acceleration sensor, in particular for automobiles, at least two electrodes which are surrounded by a dielectric are arranged, substantially parallel to each other, in a housing and immersed...
5007292 Multicomponent transducer  
The multicomponent transducer of the present invention comprises a housing interior surfaces forming an enclosed cavity and a single inertial mass immersed in a magnetic fluid contained therein....
4991438 Magnetic fluid rebalance accelerometers  
An accelerometer comprises a housing defining a chamber, a magnetizable fluid within the chamber, an electrically conductive, hollow cylindrical proof mass suspended within the chamber so as to be...
4984463 Two-dimensional acceleration sensor  
An acceleration sensor for detecting an acceleration in a plane, and having a housing, and a disk magnet arranged in a magnetic fludi stored in the housing. The movement of disk magnet is limited,...
4922753 Acceleration sensor  
An acceleration sensor including a magnetic fluid, a permanent magnet emplaced movably in the magnetic fluid, a nonmagnetic case, in which case the magnetic fluid and the permanent magnet are...
4845988 Accelerometer having a permanent magnet with non-magnetic end members  
An accelerometer has a housing defining a chamber, and a magnetizable fluid 11 within the chamber. A permanent magnet is magnetically suspended within the chamber by the magnetizable fluid with its...
4706498 Apparatus and method for measuring movement  
An accelerometer comprising a ferrofluid coated permanent magnet as a proof mass mounted for substantially friction-free movement in a hollow vessel on which vessel are mounted three coils that are...
4648273 Force responsive device  
A device is provided for detecting the influence of a gravitational forceon a body due to changes in a freefall state. The device includes a spherical housing, and a flow medium is contained in,...
4192189 Rate sensor  
A rate sensor is disclosd for use in applications requiring high reliability such as in aircraft or tank gun stabilization systems. The rate sensor consists of a sensor rotor supported within a...
4047439 Magnetic liquid supported linear accelerometer  
A linear accelerometer comprises a proof mass in the form of a permanent bar magnet located in a tube containing a magnetic fluid such as a liquid with particles of magnetic material suspended...
4043204 Magnetic fluid bearing accelerometer  
An accelerometer employing a magnetic fluid bearing which permits movement f a magnetic cylinder along a designated sensitive axis. The device is used to measure acceleration in such applications...
3516294 ACCELERATION SENSITIVE DEVICE  
Matches 1 - 26 out of 26