Applications of geophysics, absolute gravity measurement device according to atomic interferometry for applications to monitor the hydrocarbon reservoir in particular

摘要

The device includes a (13) laser system to generate laser multiple bands excited state (F1, F2) hyperfine levels of ⁽⁵_{2 S 1/2)} reference state of the atoms of the multiple laser band, ( to each match at a frequency equal to the energy transition between (F and _'2, F' ₃₎ hyperfine levels of the 5 ² P _3/2), laser systems (13) radiation (30) the first band a first laser light source that is stabilized in frequency to be (23), are connected in phase (23) a first laser light source, the second laser light source which emits a band of re-pumping (37) (24) Band (32) and a pushing band which includes a door (23, 24) give rise (31), the three-dimensional magnetic-optical trap detection band laser source and the first and second (33) reference band (36 that the produce (41) Raman interference band is connected to the (29) secondary banding means capable of generating a), superimposed two said laser system emits starting from (36) the reference band also includes (39) Raman band generator that can be associated with (40) means for generating a band of cooling which is connected to the (37) re-pumping band, Raman bands generating means (39), the magneto-optical trap It is possible to generate the (53) three bands to get.