Four different data sets pertaining to the neutral atom environment at 1 AU are presented and discussed. These data sets include neutral solar wind and interstellar neutral atom data from IMAGE/LENA, energetic hydrogen atom data from SOHO/HSTOF and plasma wave data from the magnetometer on ISEE-3. Surprisingly, these data sets are centered between 262◦ and 292◦ ecliptic longitude, ∼10◦-40◦ from...

XKF3 is an algorithm based on Extended Kalman Filter theory, that fuses 3D inertial data (6D motion data) and 3D magnetometer data, also known as „9D‟ sensor fusion, to optimally estimate 3D orientation with respect to an Earth fixed coordinate frame. The input to XKF3 is provided by the AttitudeEngineTM of Fairchild‟s FIS1100 inertial sensor, which is a custom vector digital processor that com...

This paper presents the performance evaluation of our wireless miniature Inertial Measurement Unit (IMU) WB-4 by compared with the Vicon motion capture system. In particular, a magnetic field calibration method is introduced to improve the sensor orientation estimate accuracy. The WB-4 IMU primarily contains a motherboard for motion sensing, a Bluetooth module for wireless data transmission wit...

A method for in situ detection of atmospheric turbulence has been developed using an inexpensive sensor carried within a conventional meteorological radiosonde. The sensor—a Hall effect magnetometer—was used to monitor the terrestrial magnetic field. Rapid time scale (10 s or less) fluctuations in the magnetic field measurement were related to the motion of the radiosonde, which was strongly in...

This paper presents a logic-based supervisor controller designed for trackers for a 1MW HCPV demo plant in Taiwan. A sun position sensor on the tracker is used to detect the sun position, as the sensor is sensitive to the intensity of sun light. The signal output of the sensor is partially affected by the cloud, which has a hard control position with the traditional PID control. Therefore we ha...

The embedment of induction loop underground for traffic volume monitoring caused damaging effects to the road and reduced surface aesthetics. A wireless magnetometer implanted in a small uniform area was developed detect three-axis magnetic flux changes due perturbation vehicle passing over sensor. In this project, sensor system operating at radio frequency 2.4 GHz detecting transmitting Z-fiel...

Abstract. The results of a destructive single-event effect susceptibility radiation test the PNI RM3100 magnetometer sensor, specifically MagI2C ASIC (application-specific integrated circuit) on sensor board are presented. is low-resource commercial off-the-shelf (COTS) magneto-inductive magnetometer. device was monitored for events and functional interruptions during exposure to heavy ion beam...

We compare the performance of a chip-scale atomic magnetometer CSAM with that of a superconducting quantum interference device SQUID sensor in two biomedical applications. Magnetocardiograms MCGs of healthy human subjects were measured simultaneously by a CSAM and a multichannel SQUID sensor in a magnetically shielded room. The typical features of MCGs are resolved by the CSAM, matching the SQU...

Most satellites use an on-board attitude estimation system, based on available sensors. In the case of low-cost satellites, which are of increasing interest, it is usual to use magnetometers and Sun sensors. A Kalman filter is commonly recommended for the estimation, to simultaneously exploit the information from sensors and from a mathematical model of the satellite motion. It would be also co...