Magnetic sensors and electronic compass using the same

Magnetic sensors and electronic compass using the same

A magnetic field sensor and the electronic compass using the same are provided. The magnetic field sensor is configured to sense the magnetic field component of each axis on a first reference coordinate system, and the first reference coordinate system is associated with the magnetic field sensors....

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Hauptverfasser: HUANG, HUNG-YU, LIN, CHENGIH, TANG, TAI-LANG
Format: Patent
Sprache:chi ; eng
Schlagworte:
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SURVEYING
TESTING
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creator HUANG, HUNG-YU
LIN, CHENGIH
TANG, TAI-LANG
description A magnetic field sensor and the electronic compass using the same are provided. The magnetic field sensor is configured to sense the magnetic field component of each axis on a first reference coordinate system, and the first reference coordinate system is associated with the magnetic field sensors. When the sensitivity of an axis A of the magnetic field sensor in the first reference coordinate system is different from the other axis, the magnetic field component Am on the axis A is corrected using the following equation: Am=Am(n - 1)*(Wa-1)/Wa+Am(n)*1/Wa...(A) Therefore, the Am(n) is referred to a current measured magnetic field component along with the axis A, the Am(n-1) is referred to the previous measured or calculated magnetic field component along with the axis A, and the Wa is a weight value.
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language chi ; eng
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subjects GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SURVEYING
TESTING
title Magnetic sensors and electronic compass using the same
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