Patent application number | Description | Published |
20100244970 | ATOMIC CLOCK REGULATED BY A STATIC FIELD AND TWO OSCILLATING FIELDS - An atomic clock including a mechanism applying both a static magnetic field and two oscillating magnetic fields, all mutually perpendicular, in a magnetic shield. The amplitudes and frequencies of the oscillating magnetic fields may be chosen so as to annihilate energy variations between sub-transition levels of excited atoms and to reinforce a clock output signal, and with low sensitivity to defects in regulation. | 09-30-2010 |
20100259256 | APPARATUS WITH AMBIENT MAGNETIC FIELD CORRECTION - This atomic clock comprises means for applying two mutually perpendicular oscillating magnetic fields ( | 10-14-2010 |
20100315173 | ATOMIC CLOCK OPERATING WITH HELIUM 3 - An atomic clock comprises helium 3 plasma as measurement medium, which is taken to the plasma state to exploit the metastable state of the material and the levels of the hyperfine structure, the lifetime of which is long and which thus enable an easier measurement than the excitations of gaseous atoms. | 12-16-2010 |
20120062221 | METHOD OF CALIBRATING AN ATOMIC-FUNCTIONING APPARATUS - This method makes it possible to carry out the auto-calibration of the electromagnetic coils ( | 03-15-2012 |
20130002245 | HIGH RESOLUTION AND HIGH PRECISION VECTOR MAGNETOMETER - The present invention relates to a vector magnetometer for measuring the components of an ambient magnetic field. This vector magnetometer comprises an optically pumped scalar magnetometer ( | 01-03-2013 |
20140109372 | METHOD FOR MANUFACTURING AN OPTICAL FIBRE LASER - The laser comprising an optical fibre having two ends of which a first whereby the light is to be received, and a doped section for absorbing at least part of the light received via the first end and emitting light, the method includes: applying a torsion angle to the optical fibre; supplying light having a pump power at the first end of the optical fibre; checking that the Polarisation Extinction Ratio of the light output from the first end of the optical fibre remains greater than a predetermined value throughout a predetermined range of the pump power; and, if the Polarisation Extinction Ratio remains greater than the predetermined value throughout the predetermined range of the pump power, attaching the optical fibre to a mechanical mount at two attachment points of the optical fibre situated on either side of the doped section, with the torsion angle applied to the optical fibre. | 04-24-2014 |
20140368193 | ISOTROPIC AND INTEGRATED OPTICAL PUMPING MAGNETOMETER - A magnetic resonance optical pumping isotropic magnetometer including a laser, a gas filled cell, a HF discharge circuit, RF magnetic field generating coils surrounding the cell, a first frequency regulating mechanism of an RF generator, a second polarization regulating mechanism of the laser beam, and a third regulating mechanism of the direction of the RF magnetic field. The direction of polarization of the laser beam at an inlet of the cell is orthogonally aligned with the magnetic field to be measured by virtue of a liquid crystal polarization rotator. The magnetometer is well-adapted to an integrated arrangement. | 12-18-2014 |
20140368214 | ELECTRIC CABLE WEAR CONTROL SYSTEM - A system including: a cable including: a core capable of transporting at least one useful electric signal; a sheath surrounding said core; at least one conductive wear detection strand embedded in the sheath and substantially extending along the entire length of the cable; and at least one reference conductive element which is not connected to said at least one wear detection strand and substantially extends along the entire cable length; and a control unit capable of measuring the capacitance or the resistance formed between said at least one strand and the reference conductive element. | 12-18-2014 |