Absolute Gravity MEASURING DEVICE BASED atom interferometers for geophysical applications, IN PARTICULAR FOR MONITORING OF HYDROCARBONS FIELD

摘要

1. Absolute gravimetric metering device (10) based on atomic interferometry suitable, particularly for field applications, comprising: a laser system (13) for generating a plurality of laser radiation for cooling the bands, capturing, manipulation, and detection of the plurality of ejection atoms, said laser stripes, and are compatible with the frequency of transitions between hyperfine energy level (Fl, F2) of the fundamental state (5S) and hyperfine level (F, F) of the excited state (5P) yk bound set of atoms, characterized in that said laser system (13) comprises a first source (23) of laser radiation, stabilized frequency which emits a first band (30), a second source (24) of laser radiation docked in phase with the first source ( 23) laser that emits a strip (37) pumping, wherein said first (23) and second (24) laser light sources are connected to the means for generating secondary bands (29) capable of generating a strip (31) of detecting the three-dimensional strip magneto-optical trap (32), the strip (33) ejection and the reference band (36), wherein the laser system further comprises means for generating the bands (39) of Raman scattering, capable of creating two excitatory superimposed interferometric strip (41) of Raman scattering, since the reference band ( 36), wherein the means for generating the strips (39) connected with the Raman bands generating means (40) cooling further associated with a strip (37) of the pump, and can generate three strips (53) for creating two