Abstract:
A gyroscope apparatus for a device including an accelerometer and a magnetic component has a gravity vector generator connected to the accelerometer and receptive to acceleration readings therefrom. A magnetic component output generator is connected to the magnetic component and receptive to magnetic component readings. A sensor fusion engine is connected to the gravity vector generator and to the magnetic component output generator, with a gravity vector value and a magnetic field vector value at a first time instance being combined to represent a first orientation value. The gravity vector value and the magnetic field vector value at a second time instance are combined to represent a second orientation value. An orientation rate of change is derived from a difference between the first orientation value and the second orientation value.
Abstract:
The present disclosure provides systems and methods for heating biological samples. Methods and systems of the present disclosure may be used for performing nucleic acid amplification to identify one or more targets in a nucleic acid sample of a subject.
Abstract:
A system and method for adjusting a sport implement or a set of sports implements based on information collected from sports simulation equipment is provided. The system comprises an analysis engine in communication with a data input source; and a storage device in communication with the analysis engine. In response to receiving information relating to a shape of the sports implement, the analysis engine accesses the storage device to facilitate an analysis of the shape of the sports implement. The analysis engine generates information relating to a tuning process which may be performed based on the shape of the sports implement and information on the storage device.
Abstract:
Systems, methods and media are provided for golf ball spin axis measurement. In one example, a method comprises detecting a launched golf ball, receiving reflected Doppler signals from the golf ball by a radar device having an array of multiple receiver pairs, demodulating the spin-induced signals from the received signals, determining a time delay between the demodulated signals for the receiver pairs in the array, calculating an average time delay for the multiple receiver pairs, calculating a spin axis of the golf ball from the time delay values, outputting a spin axis value to an external system, and storing the spin axis value in a database.
Abstract:
An approach is provided for detecting when a user has boarded a means of transport. The sensor platform may determine sensor information associated with at least one device, wherein the sensor information is collected from one or more sensors that do not include one or more satellite-based location sensors. Then, the sensor platform may process and/or facilitate a processing of the sensor information to determine at least one entry or at least one exit of the at least one device with respect to at least one structure, at least one supporting structure associated with the at least one structure, or a combination thereof associated with one or more transport means.
Abstract:
A method for determining absolute orientation of a platform is disclosed. In one embodiment, a first sky polarization data set for a first time Ti is measured using a sky polarization sensor disposed on a platform. A second sky polarization data set is obtained at a second time Tj. A difference in orientation between the first sky polarization data set and the second sky polarization data set is determined using an orientation determiner. The difference in orientation is provided as at least one orientation parameter for the platform at time Tj. The at least one orientation parameter is used to provide a direction relative to a reference point on the platform.
Abstract:
The invention relates to a method and system for remotely determining an absolute azimuth of a target point (B) by ground means, via the creation of an image bank georeferenced in the absolute azimuth only from a first point (P 1 ) and the use of this image bank as an azimuth reference from a second point (P 2 ) having a visual environment at least in part the same as the visual environment of the first point (P 1 ).
Abstract:
A non-gyroscopic inertial seeker system for determining the azimuth of a body relative to the true North. The system includes a fluid rotor angular accelerometer which provides a periodic output signal, and means to extract the body azimuthal direction relative to the true North from the periodic output.
Abstract:
Magnetoresistive sensors are commonly used for angular detection in many automotive applications. According to an exemplary embodiment of the present invention, a sensor is provided in which a first half-bridge has magnetoresistive resistors with barber-pole stripes and in which a second half-bridge has magnetoresistive resistors without barber-pole stripes. One of the resistors without barber-pole stripes is rotated with respect to the other three resistors by 90°. This may provide for an improved angle determination with reduced angular errors due to offset.
Abstract:
A method and a system for obtaining a true azimuth heading for correcting a coarse azimuth heading measured from an observation position (402) to a specific selected target (406) by operating a data acquisition system (200) disposed at the observation position. Data and measurements are taken to retrieve a calculated target location, including measurement errors. The calculated target location is surrounded by the error area limits, which are presented as a search zone on a display module (30), and superimposed on a map. Either an automatic scan or an operator conducted search is prompted within the search zone limits, to find the specific selected target, which when found and indicated, operates the computer module (30) for retrieving measured location data of the specific selected target from a source of measured location data (21). Once found, calculations of the true azimuth are performed, allowing the derivation of the true North.