Azimuth (Az), also called azimuth, is one of the methods to measure the angular difference between objects on a plane. It is the horizontal angle clockwise from the northbound line of a certain point to the target line.
Azimuth is the horizontal angle from the northbound line of a point clockwise to the target line. Expressed in degrees and dense bits. It is usually used to determine the direction, indicate the target and keep the direction of travel. The true azimuth calculated from the true meridian is usually used for precise measurement.
Bearing: direction position. East, south, west and north are the basic directions; Northeast, southeast, etc. It's the middle direction. In birthdates, the diagonal distance between two planets is called azimuth. Eight house geomantic omen determines the sitting direction of the house according to the orientation of the gate. The orientation of eight homes corresponds to eight kinds of hexagrams, namely, earthquake, separation, exchange, hurdle, Xun, Kun, Gan and Gen. The orientation of a house determines which kind of hexagrams it belongs to. East belongs to earthquake, south belongs to separation, west belongs to communication, north belongs to Kan, southeast belongs to Xun, southwest belongs to Kun, northwest belongs to trunk, and northeast belongs to Gen.
The square magnetic azimuth calculated by magnetic meridian is widely used in aviation, navigation, artillery shooting and army marching, and the coordinate azimuth calculated by the vertical line of topographic map is widely used by artillery. The relationship between magnetic azimuth and true azimuth is: magnetic azimuth = true azimuth-(magnetic declination). The relationship between coordinate azimuth and magnetic azimuth is: coordinate azimuth = magnetic azimuth+(magnetic deflection angle).
Azimuth refers to the satellite receiving antenna, which rotates 0-360 in the horizontal plane. During azimuth adjustment, the paraboloid moves left and right in the horizontal plane. Usually, the result we get from calculation software or data should be to point the satellite antenna to the east or west by an angle, which is called azimuth, based on the true north direction (around the geomagnetic south pole).
As for whether it is east or west, it depends on the longitude relationship between the receiving place and the satellite to be received. Take our northern hemisphere as an example. If the longitude of the receiving place is greater than that of the pre-receiving satellite, the azimuth angle will be rotated from south to west.
Instead, you should turn to the east at a certain angle. The true north direction is measured by a compass, but because the geographical north pole and the geomagnetic south pole are not completely coincident, it is possible to receive the strongest satellite signal after selecting the azimuth angle. In the horizon coordinate system, the horizon circle passing through the south and north points is called the meridian circle. Meridian circle is divided into two semicircles: 180 with zenith and nadir. The semi-arc with the north pole as the midpoint is called the sub-circle, and the semi-arc with the south pole as the midpoint is called the noon circle. In the horizon coordinate system, the function of meridian circle is equivalent to the function of the prime meridian in the geographical coordinate system, and it is the starting surface of horizon longitude (azimuth) measurement.
Azimuth, the longitude of horizon, is a dihedral angle, that is, the angle between the plane where the meridian lies and the plane passing through the celestial body, measured clockwise from the plane where the meridian lies. Azimuth can also be measured on the horizon, starting from the north pole and measuring clockwise from the north pole. The range of azimuth angle is 0 ~ 360, 0 in North Point, 90 in East Point,180 in South Point and 270 in West Point.
Starting from the northern end of the standard direction, the horizontal angle from the clockwise direction to the straight line is called the azimuth angle of the straight line. The azimuth angle ranges from 0 to 360 degrees.
In a tape recorder, the angle between the recording head and the tape direction should ideally be 90 degrees; In LP turntable, the angle between the pointer arm and the surface of the record.