Abstract:
전자 장치는 베젤 파트에 대해 회전 가능하게 결합되어 복수의 자석들을 포함하는 회전체, 복수의 자석들에 의해 유발되는 자기장을 센싱하는 한 쌍의 홀 센서들, 내부 공간에 배치되는 자기 센서, 제2 자기장 데이터를 제1 자기장 데이터에 기초하여 산출된 오프셋을 이용하여 보정하는 프로세서를 포함할 수 있다.
Abstract:
Examples of systems and methods for calibrating or operating a magnetic sensor for sensor temperature or operating conditions are provided. The magnetic sensor can comprise a dual magnetometer sensor that comprises a first, low-power-consumption magnetometer (e.g., a magneto-inductive magnetometer) and a second higher-power-consumption magnetometer (e.g., a magneto-resistive magnetometer). The second magnetometer can have a lower unit-to-unit variation in temperature calibration parameters and can be used to temperature-correct readings from the first magnetometer. The magnetic sensor can dynamically switch between usage of the first magnetometer and the second magnetometer in order to provide a dynamic sample rate that can depend on conditions within the sensor or external to the sensor.
Abstract:
A system for calibrating a subsystem configured to determine a heading of a vehicle includes (1) a navigation system providing reverser control data, GPS data, and magnetometer data; and (2) an onboard computer configured to calculate X and Z average magnetic fields and derive an X- and Z-axes partial ellipse therefrom; calculate semi-major axis or semi-minor axis values corresponding to respective points on the partial ellipse; perform a position translation of the partial ellipse along the X- and Z-axes; perform a magnitude scaling of the partial ellipse along the X- and Z-axes, wherein the position translation and magnitude scaling yield transformed X and Z magnetic field values; and calculate a heading based on the position translated and magnitude scaled partial ellipse.
Abstract:
An ensemble of motion sensors is tested under known conditions to automatically ascertain instrument biases, which are modeled as autoregressive-moving-average (ARMA) processes in order to construct a Kalman filter. The calibration includes motion profiles, temperature profiles and vibration profiles that are operationally significant, i.e., designed by means of covariance analysis or other means to maximize, or at least improve, the observability of the calibration model's structure and coefficients relevant to the prospective application of each sensor.
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.