Method and apparatus for precision azimuth measurement

Details Method and apparatus for precision azimuth measurement Method and apparatus for precision azimuth measurement

G - Physics

01

C

G01C 1/00 (2006.01) G01P 3/46 (2006.01)

Patent

CA 2738665

Method and apparatus for precise measurement of azimuth. An angular rate sensor is rotated so its sensitive axis periodically aligns with the horizontal component of the earth's spin rate (north). A preferably sinusoidal signal is analyzed with respect to the relative angle of the sensor and a desired direction in order to determine the azimuth of that direction.

L'invention concerne un procédé et un appareil de mesure de précision de l'azimut. Un capteur de vitesse angulaire est mis en rotation de telle sorte que son axe sensible est périodiquement aligné avec la composante horizontale de la vitesse de rotation de la Terre (Nord). Un signal de préférence sinusoïdal est analysé par rapport à l'angle relatif du capteur et une direction voulue afin de déterminer l'azimut de cette direction.

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