deflection angle


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deflection angle

[di′flek·shən ‚aŋ·gəl]
(geodesy)
The angle at a point on the earth between the direction of a plumb line (the vertical) and the perpendicular (the normal) to the reference spheroid; this difference seldom exceeds 30 seconds of arc.
(ordnance)
An angle that measures the departure of a moving object from its directed course.
The angle of a deflection shot in gunnery, measured between the line of sight to the target and the line of sight to the aiming point.

deflection angle

In surveying, a horizontal angle measured from prolongation of the preceding transit line to the next line; recorded as “right” if clockwise rotation and “left” if counterclockwise.

deflection angle

deflection angle
i. In surveying, a horizontal angle measured from the prolongation of the preceding line to the following line. Deflection angles to the right are positive; those to the left are negative.
ii. In photogrammetry, a vertical angle, measured in the vertical plane containing the flight line by which the datum of any model in a stereo-triangulated strip departs from the datum of the preceding model.
iii. In gunnery, the angle that the aircraft needs to lay ahead of the target aircraft to provide for the time of flight of the weapon to the target. It is normally measured in milliradians.
References in periodicals archive ?
Different examined applications have indicated that the admissible zone, including value R reduces considerably at a decrease in the deflection angle between straight stretches.
15, the number of light received by absorbers decreased rapidly along with the increase of the incident light deflection angle.
Their published formula is different in two respects, however: (1) their approximation for the deflection angle of the bent plate assumes elastic, not plastic, plate deformation, and (2) a different correlation is used for the contraction coefficient, [C.
In the case of a horizontally positioned FPC, the tilt angle would equal the deflection angle by tracking
Since the beam deflection angle is a simple function of applied voltage, it's easy to steer the beam.
The M46 not only incorporates the visual Flat Face but also a deflection angle of 100 degrees allowing designers to create products that deliver more viewable work space while using less desk space.
s] is deflection angle of the shank, Lf is length of the flute and z is the coordinate where the deflection is being calculated.
When the beam deflection angle is increased, the gun can be placed closer to the screen and the overall length of the tube can be reduced.
There will be a deflection angle, [theta] [member of] [0, [pi]), and an azimuthal angle, [psi] [member of] [0, 2[pi]> to be sampled statistically.
The maximum coupling deflection angle is in permisible limits (indicated by lines on Fig.