Rectangular Magnetic Field Coil Device
A magnetic field coil, rectangular technology, applied in the field of rectangular magnetic field coil devices, can solve the problems of reducing the reliability, compactness and feasibility of the magnetic field system, the complex structure of the circular coil, and the technical difficulty in realization, and achieves accurate and controllable transfer process, The system structure is compact and reliable, and the effect of easy miniaturization
Active Publication Date: 2016-06-08
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology
At this time, the circular coil will bring many problems such as complex structure, loose and large system, and difficult fixation. It is difficult to realize the technology, which reduces the reliability, compactness and feasibility of the magnetic field system.
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[0030] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the scope of the present invention should not be limited by this.
[0031] refer to figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 . figure 1 It is a schematic diagram of the device of the rectangular magnetic field coil frame system of the present invention, figure 2 is the skeleton structure diagram of the rectangular transfer coil, image 3 It is the integrated skeleton structure diagram of the x-axis rectangular bias coil and the MOT coil, Figure 4 It is the nesting relationship diagram of the rectangular transfer coil skeleton and the integral skeleton of the MOT coil, Figure 5 is the y-axis rectangular bias coil skeleton structure diagram, Figure 6 It is the structural diagram of the z-axis rectangular bias coil skeleton and its struts and base, Figure 7 It is the position relationship diagram of ...
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Disclosed is a rectangular magnetic field coil device. The rectangular magnetic field coil device is used for an atom chip interferometer and is characterized by comprising a rectangular transfer coil pair composed of a pair of rectangular Helmholtz coils, an MOT coil pair composed of a pair of rectangular reverse Helmholtz coils, an x-direction bias coil pair, a y-direction bias coil pair and a z-direction bias coil pair, and the x-direction bias coil pair, the y-direction bias coil pair and the z-direction bias coil pair are composed of rectangular Helmholtz coils. The device is mainly used for providing various space magnetic fields for the atom cooling, trapping and transferring process, and providing an external bias magnetic field needed by an atom chip magnetic well. The device has the advantages that the magnetic field coils are all of a rectangular structure, and the structure is more compact, more stable and smaller. The light-transmitting needs for cooling light, reverse pumping light, pumping light, detecting light, beam splitting light and other laser beams in the atom interferometer study are considered in the device.
Description
technical field [0001] The invention relates to a rectangular coil, especially a rectangular magnetic field coil device for an atomic chip interferometer. The magnetic field coils of the device all adopt a rectangular structure, and the structure is more compact, stable and small; the device can take into account the atomic interferometer research Requirements for the passage of multiple laser beams such as cooling light, anti-pumping light, pumping light, probe light, and beam splitting light. Background technique [0002] There are two main structures of external magnetic field coils used in cold atom research: circular magnetic field coils and rectangular magnetic field coils. At present, circular magnetic field coils are mainly used. such as Germany The team used a pair of circular anti-Helmholtz coils outside the vacuum chamber to load atoms (see literature 1M.Greiner, I.Bloch, T.W. and TEsslinger, Magnetic transport of trapped cold atoms over a large distance, Phy...
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IPC IPC(8): H01F5/00
Inventor 陈钰水张海潮许忻平王育竹
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI