The Analysis And Research On The Spot Energy Distribution And The Center Location Of The Laser

Laser depends on the internal regularity makes the atoms Continuously enlargeand oscillation due to the photons of specific frequency in the In the axial,so thatThe energy is concentrated on spectrum strongly,and launches in a certaindirection,forming highly concentrated, high brightness laser beam. This makes thelaser has a good directional and monochromaticity.So laser has a unique advantage inthe space coordinate positioning and measurement applications.Nowadays, lasertechnology has a wide range of applications in the field of national defenseconstruction, industrial, medical and all aspects of life, and other fields. In the spatialorientation with a laser,especially in the spatial displacement, angular displacementand the school at test laser technology applications,Its main task is to pinpoint the spotenergy center position when the laser beam emitted by the laser reach the targetlocation. This paper mainly discuss precise positioning the spot energy centerposition.In the process of discussion the paper mainly analyze and study thedistribution of the laser spot energy density,and discuss The change of the laser spotenergy distribution when the laser beam Incidents in different direction. Andfinally, To account for them through the experiment testing.The paper mainly discusses the laser spot energy and the distribution of centerposition though the theoretical analysis and experimental tests, when the laser beamincident vertically, the paper analyzes distribution of the laser spot energy densitythough theory, and verify though Sampling measurement to the laser spot energyusing photoelectric detector;when the laser beam incident aslant, the paper analyzesThe distribution of diffraction rings at all levels of energy when Laser beam incidentin two dimensional PSD photoelectric detector, and calculates the spot energy centerposition.By fixed two-dimensional PSD photoelectric detector rotary table,Laser beams incidence in two dimensional PSD photoelectric detector with different Angleof incidence. Finally, though fitting curve of Laser beam incident Angle and the spotenergy center position, the energy center offset change rule and the laser spot energycenter position offset are obtained under different incident angle. This providesexperimental basis for project design.