METHOD OF INSERTING LASER BEAM VERTICAL LINE OF BALLISTIC GRAVIMETER AND GRAVIMETER FOR REALISING SAID METHOD

摘要

FIELD: physics.;SUBSTANCE: method includes performing a series throws of a proofmass at different inclinations of a gravimeter platform; in each throw, determining acceleration of free fall, finding the minimum value of acceleration in the series of throws and the corresponding platform inclination and fixing the platform at said inclination. A laser ballistic gravimeter, having a platform, accelerometers and motors, is disclosed for carrying out the method. The gravimeter includes a system for controlling insertion into the vertical line of the laser beam, having a matching unit, having a matrix structure whose row cells are the measured values of acceleration of free fall, platform inclination angles, control signals and switches, and the columns are comparison cells. The control system also includes a common bus, a search unit, a strategy unit and an adder.;EFFECT: high accuracy of the absolute measurement of acceleration of free fall, easier maintenance of the gravimeter and faster field measurements.;2 cl, 1 dwg