CN213368208U - Cold cesium atomic beam source structure of miniature atomic clock - Google Patents
Cold cesium atomic beam source structure of miniature atomic clock Download PDFInfo
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- CN213368208U CN213368208U CN202021802892.4U CN202021802892U CN213368208U CN 213368208 U CN213368208 U CN 213368208U CN 202021802892 U CN202021802892 U CN 202021802892U CN 213368208 U CN213368208 U CN 213368208U
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Abstract
The utility model discloses a cold cesium atom beam source structure of a miniature atomic clock, which comprises an atom air chamber. A cold cesium atomic group is arranged in the atomic gas chamber; two pairs of anti-Helmholtz coil coils are respectively arranged in the atom air chamber in the vertical direction in the space; two groups of prism assemblies are respectively arranged on the outer sides of the two pairs of reverse Helmholtz coil coils in parallel; the two groups of prism assemblies are respectively matched with two beams of incident laser outside the atomic gas chamber, and two groups of laser light paths which are vertical to each other are formed in the atomic gas chamber; two pairs of anti Helmholtz coil coils, two sets of prism assemblies, an optical glass window are respectively matched with two incident lasers, two-dimensional magneto-optical traps are formed in the atom air chamber, and the number of the two-dimensional magneto-optical traps is at least one. The utility model discloses a design of vacuum angle valve and cesium furnace maintains the interior cesium atom density of atomic gas chamber, through enlarging the cooling zone in the atomic gas chamber, prolongs the cooling time that the cesium atom received to promote the flow of cesium atomic beam, promote the atom loading rate to three-dimensional magneto-optical trap.
Description
Technical Field
The utility model relates to a cold atom beam source structure, concretely relates to cold cesium atom beam source structure of miniature atomic clock.
Background
The basic principle of atomic clocks is to lock the electromagnetic wave frequency to a stable transition frequency between atomic, molecular or ionic energy levels, thereby achieving high-precision electromagnetic wave frequency output. Since the successful development, the method can be used for precise measurement, positioning navigation and high-speed communication
In many fields such as the synchronization of information and power systems, an atomic clock is a key device. The atomic clock mainly utilizes electromagnetic waves emitted when atoms absorb or release energy to time, takes the current cesium atomic clock as an example, cesium metal in cesium bubbles is gasified by heating a cesium furnace and is conveyed into a steam chamber, the cesium atoms which have changed energy states due to the fact that the microwave field is on the internal structure of the cesium atomic clock with correct frequency are separated through magnetic field state selection and microwave field oscillation, and finally cesium atomic beams are sprayed out through a collimator and hit on a detector, so that the cesium atomic frequency is identified. However, in this thermal atomic beam mode, the atomic motion speed is fast, the line width of the frequency stabilization spectral line is difficult to narrow when the volume of the atomic clock is fixed, the frequency stability is difficult to further improve, and it is difficult to simultaneously achieve the two requirements of small volume and high frequency stability.
To solve this technical problem, a solution for a cold atom beam is proposed. Compared with the traditional thermal atomic beam, the cold atomic beam has the advantages of narrow speed distribution, small divergence angle, high brightness and the like, and meanwhile, the cold atomic beam is more and more popular because a user can conveniently control related physical parameters.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cold cesium atom beam source structure of miniature atomic clock has through maintaining the indoor cesium atom density of atomic gas, enlarges the cooling zone in the atomic gas room, prolongs the cooling time that the cesium atom received to promote the flow of cesium atom beam, promote the atom loading rate to three-dimensional magneto-optical trap, and through preventing the spontaneous three-dimensional magneto-optical trap that gets into of cesium atom beam, thereby effectively avoid with three-dimensional magneto-optical trap in the atomic collision that has caught and arouse the technological effect of loss.
The utility model discloses a realize that the technical scheme who takes of above-mentioned purpose does:
a cold cesium atom beam source structure of a miniature atomic clock comprises an atom gas chamber. The atomic gas chamber is a hollow cavity and is formed by sealing a frame body and an optical glass window, and a cold cesium atomic group is arranged in the atomic gas chamber; two pairs of anti-Helmholtz coils are respectively arranged in the atom air chamber in the vertical direction in the space, and the two pairs of anti-Helmholtz coils are respectively arranged symmetrically by taking the atom air chamber as the center; two groups of prism assemblies are respectively arranged outside the two pairs of anti-Helmholtz coils in parallel, and are respectively symmetrically arranged by taking the atom air chamber as a center; the two groups of prism assemblies are respectively matched with two beams of incident laser outside the atomic gas chamber, two groups of laser light paths which are vertical to each other are formed in the atomic gas chamber, each group of laser light paths consists of a positive beam and a negative beam of laser, and the laser light paths shuttle at least once in the atomic gas chamber; two groups of laser light paths are intersected at a zero point of a magnetic field generated by the anti-Helmholtz coil, and two-dimensional magneto-optical traps are formed in the atom air chamber, and the number of the two-dimensional magneto-optical traps is at least one; the two-dimensional magneto-optical trap forms an atomic beam by extruding cold cesium atomic groups, an atomic beam outlet is arranged on one side of the atomic gas chamber along the direction of the atomic beam, the atomic beam outlet is a through hole, an optical glass window is arranged on the other side of the atomic gas chamber, a semiconductor laser is arranged outside the atomic gas chamber, and laser generated by the semiconductor laser is coaxial with the atomic beam outlet.
The utility model discloses mainly adopt the principle of magneto-optical trap. The principle is roughly as follows: the two pairs of anti-Helmholtz coil wires pass through each pair of anti-Helmholtz coil wires with the same current and opposite directions, so that a quadrupole magnetic trap can be generated, and the central intensity of a magnetic field is zero. Two beams of incident laser perpendicular to each other in the space form two sets of forward and reverse laser light paths respectively by using the refraction and reflection principle of light under the coordination of the prism assembly, the forward laser and the reverse laser are mutually opposite to each other and shoot to the zero point of the magnetic field, and atoms with the speed lower than a certain value are captured, and atom beams are further formed. After the atomic beam is formed, the atomic beam can be pushed out along an atomic beam outlet under the action of laser generated by the semiconductor laser, so that the three-dimensional magneto-optical trap is loaded.
Preferably, the prism assembly consists of a first prism part and a second prism part; the first prism component comprises a first base; a hollow channel is formed in the first base, two wedge-shaped prisms are arranged in the hollow channel, and the two wedge-shaped prisms are arranged in the front and back direction of the incident laser.
The utility model discloses in wedge prism that uses, inclined plane and bottom surface are certain angle, and when incident laser throwed to first wedge prism on, through the inclined plane to the bottom surface deflection, in the direction along the prism slope, the diameter of the circular facula of incident laser was elongated, and in the direction of the perpendicular to prism slope, the diameter was unchangeable, consequently can obtain oval facula. By adjusting the deflection angles and the relative positions of the two wedge-shaped prisms, elliptical light spots with different major and minor axis proportions can be obtained. The second wedge prism mainly has collimation effect, so that the incident angle of the incident laser is consistent with the emergent angle.
Preferably, the second prism part comprises a second base; a secondary reflection prism is arranged on the second base or the first base and the second base, and incident laser is reflected or staggered and reflected between the first prism part and the second prism part through the secondary reflection prism; a reflector is arranged on the first base or the second base; the reflector is arranged at the tail end of the laser light path and is perpendicular to the laser light path.
The facula of the incident laser is adjusted to be elliptical through the wedge-shaped prism, if the gradient direction of the prism is on the same plane with the direction of the cesium atom beam, the laser is elongated along the direction of the atom beam, so that the coverage area of the incident laser in the atom gas chamber can be increased, namely the coverage area of a single cooling area is enlarged. Meanwhile, through mutual matching between the secondary reflection prisms, a plurality of cooling areas can be formed in the atom air chamber, when the plurality of cooling areas are overlapped, the largest atom cooling area can be obtained, and under the premise that the length of the atom air chamber is fixed, the cesium atoms can obtain the longest cooling time in such a mode, so that the capture quantity of the two-dimensional magneto-optical trap to the cesium atoms is increased, and the flow of cesium atom beams is improved. In addition, the reflector which is arranged at the tail end of the laser light path and is vertical to the laser light path is mainly used for generating an opposite light path so as to meet the requirement of laser correlation at the zero point of the magnetic field.
Preferably, the atom air chamber is fixedly connected with a vacuum angle valve; the vacuum angle valve is provided with two connecting ports, one connecting port is communicated with the inner cavity of the atomic gas chamber, and the other connecting port is connected with the cesium furnace.
The cesium furnace is connected with the atomic gas chamber through a vacuum angle valve, and the density of cesium atoms in the gas chamber is controlled through the opening and closing degree of the valve. Therefore, the flow of the generated cold cesium atom beam is always kept in a relatively fixed range, and the reduction of the flow of the cold cesium atom beam caused by the reduction of the cesium atom density in the atom gas chamber is avoided. In addition, vacuum angle valve belongs to prior art, is an automatic valve, when the pressure differential surpassed the default, can open automatically the utility model discloses in, when the atom air chamber in because of cold cesium atomic beam released and lead to pressure reduction, vacuum angle valve opened, and the cesium oven pours into the cesium atom into the atom air chamber.
Preferably, the two incident laser beams are respectively generated by two polarization maintaining optical fibers; the polarization maintaining optical fiber is fixedly connected with a laser beam expanding lens barrel; the laser beam expanding lens barrel and the wedge-shaped prism are positioned on the same straight line.
The laser beam expanding lens barrel is a prior art, and has many specific designs, taking the prior art with the publication number of CN202615049U as an example, the laser beam expanding lens barrel mainly utilizes a focusing lens to amplify light spots in equal proportion. Through the cooperation of laser beam expanding lens cone and wedge prism, can further promote single cooling area's coverage, on the basis that does not increase secondary reflection prism quantity, enlarge the utility model discloses holistic cooling area scope helps the miniaturization of atomic clock.
Preferably, an atom beam outlet outside the atom air chamber is provided with a vacuum differential tube in a matching way and is communicated with an inner cavity of a three-dimensional magneto-optical trap device through the vacuum differential tube; the inner cavity of the three-dimensional magneto-optical trap device and the atom air chamber are both vacuum cavities, and the pressure intensity in the inner cavity of the three-dimensional magneto-optical trap device is greater than the pressure intensity in the atom air chamber.
Vacuum differential pipe is prior art, and mainly used realizes the transition of the working pressure gradient of different equipment the utility model discloses the interior transition that then realizes three-dimensional magneto-optical trap device inner chamber and atom air chamber internal pressure. Because the pressure intensity in the inner cavity of the three-dimensional magneto-optical trap device is greater than the pressure intensity in the atom gas chamber, the cold cesium atom beam in the atom gas chamber cannot enter the inner cavity of the three-dimensional magneto-optical trap device spontaneously under the action of no external force, and the cold cesium atom beam can enter the three-dimensional magneto-optical trap device under the action of pushing light only when the semiconductor laser emits the pushing light. Therefore, the loss caused by collision with the trapped atoms in the three-dimensional magneto-optical trap can be effectively avoided.
Preferably, the anti-helmholtz coils are each separately powered.
The anti-Helmholtz coils are respectively and independently powered, so that the phenomenon that the center of a magnetic field is dislocated with the atom beam outlet, and the axis of the atom beam outlet is not on the same straight line with the center of the magnetic field is avoided. By this design, magnetic field errors due to coil assembly and manufacture can be eliminated.
Preferably, the atom gas chamber, the anti-Helmholtz coil and the prism assembly are all wrapped in one magnetic shielding box; the wire of the anti-Helmholtz coil, the semiconductor laser, the vacuum differential tube, the laser beam expanding lens cone and the vacuum angle valve all extend to the outside through the magnetic shielding box.
The utility model discloses wrap up with the magnetic screen box, mainly be in order to prevent that the produced magnetic field of anti Helmholtz coil from disturbing other regions of atomic clock.
The utility model discloses following beneficial effect has:
1. the utility model discloses a design of vacuum angle valve and cesium furnace maintains the interior cesium atom density of atomic gas chamber, through enlarging the cooling zone in the atomic gas chamber, prolongs the cooling time that the cesium atom received to promote the flow of cesium atomic beam, promote the atom loading rate to three-dimensional magneto-optical trap.
2. The utility model discloses a pressure difference between vacuum differential tube and three-dimensional magneto-optical trap device and the atom air chamber can prevent the spontaneous three-dimensional magneto-optical trap device that gets into of cesium atomic beam to effectively avoid with the three-dimensional magneto-optical trap in the atom bump and arouse the loss of having caught.
Drawings
Fig. 1 is an overall schematic view of the present invention.
Fig. 2 is an exploded view of the inside of the present invention.
FIG. 3 is a schematic view of the connection of an atomic gas cell, a connecting valve, and a cesium furnace.
FIG. 4 is a front view, a top view, a left side view, and a right side view of the atomic gas cell.
Fig. 5 is a schematic view of a prism assembly.
Fig. 6 is a single in-plane laser path diagram.
Reference numerals: 1-atomic gas cell; 11-a frame body; 12-an optical glazing; 13-atomic beam outlet; 14-vacuum angle valve; 15-cesium oven; 2-anti helmholtz coil; 3-a prism assembly; 31-prism member number one; 311-base number one; 312-secondary reflecting prism; 313-a wedge prism; 32-prism part number two; 321-second base; 322 a mirror; 4-a semiconductor laser; 5-vacuum differential tube; 6-a laser beam expanding lens barrel; 7-a magnetic shield case; 8-polarization maintaining fiber.
Detailed Description
Example 1: as shown in fig. 1, fig. 2 and fig. 4, a cold cesium atomic beam source structure of a micro atomic clock comprises an atomic gas chamber 1. The atomic gas chamber 1 is a hollow cavity and is formed by sealing a frame body 11 and an optical glass window 12, and a cold cesium atomic group is arranged in the atomic gas chamber; two pairs of anti-Helmholtz coils 2 are respectively arranged in the atom air chamber 1 in the vertical direction in the space, the two pairs of anti-Helmholtz coils 2 are respectively symmetrically arranged by taking the atom air chamber 1 as the center, the passing currents of any one pair of the two pairs of anti-Helmholtz coil wires 2 are the same in magnitude and opposite in direction, a quadrupole magnetic trap is generated, and the central intensity of a magnetic field is enabled to be zero; two beams of incident laser outside the atom air chamber 1 are matched with the prism component 3, and form two groups of positive and negative laser light paths respectively by utilizing the refraction and reflection principles of light, the positive laser and the negative laser are mutually opposite to each other and shoot to the magnetic field zero point of the quadrupole magnetic trap, and then the atoms with the speed lower than a certain value are captured, and atom beams are formed. After the atomic beam is formed, the atomic beam is pushed out along the atomic beam outlet 13 by the laser beam generated by the semiconductor laser 4, and the three-dimensional magneto-optical trap can be loaded.
Example 2: according to embodiment 1, as shown in fig. 5 and 6, the prism assembly 3 is composed of a first prism part 31 and a second prism part 32; first prism member 31 includes first base 311; a hollow channel is arranged on the first base 311, two wedge prisms 313 are arranged in the hollow channel, and incident laser can penetrate through the first prism component through the two wedge prisms 131; the two wedge prisms 131 are arranged in a matching manner, so that the light spot of the incident laser can be changed from a circle to an ellipse on the premise of not changing the laser angle; the first base 311 is provided with at least one secondary reflection prism 312.
The second prism member 32 includes a second base 321; the second base 321 is provided with secondary reflection prisms 312, and the number of the secondary reflection prisms 312 is consistent with that of the secondary reflection prisms 312 on the first prism part 31; a reflecting mirror 322 is arranged on the second base 321, and the reflecting mirror 322 is arranged at the tail end of the laser light path and is perpendicular to the laser light path; the wedge prisms 313, the secondary reflection prisms 312 and the reflection mirrors 322 on the first prism part 31 and the second prism part 32 are all arranged in a matching way.
When the incident laser is projected onto the first wedge prism 313, it is deflected to the bottom surface via the inclined surface, the diameter of the circular spot of the incident laser is elongated in the direction along the prism slope, and the diameter is constant in the direction perpendicular to the prism slope, so that an elliptical spot can be obtained. By adjusting the deflection angle and the relative position of the two wedge prisms 313, elliptical light spots with different major and minor axis ratios can be obtained. The second wedge prism 313 mainly collimates the incident angle of the incident laser light with the outgoing angle. Meanwhile, through the mutual matching between the secondary reflection prisms 312, a plurality of cooling areas can be formed in the atomic air chamber, when the plurality of cooling areas are overlapped, the largest atomic cooling area can be obtained, and under the premise that the length of the atomic air chamber is fixed, the cesium atoms can obtain the longest cooling time in such a way, so that the capture quantity of the two-dimensional magneto-optical trap to the cesium atoms is increased, and the flow of cesium atom beams is improved. In addition, the reflector 322 disposed at the end of the laser light path and perpendicular to the laser light path is mainly used to generate an opposite light path, so as to meet the requirement of laser correlation at the zero point of the magnetic field.
Example 3: according to embodiment 2, two incident laser beams are generated by two polarization maintaining fibers 8, respectively; the polarization maintaining optical fiber 8 is fixedly connected with a laser beam expanding lens barrel 6; the laser beam expanding lens barrel 6 and the wedge prism 313 are arranged in a matching way. Through the cooperation of laser beam expanding lens cone 6 with wedge prism 313, can further promote single cooling area's coverage on the basis that does not increase secondary reflection prism quantity 312 to can reduce the utility model discloses a volume helps the miniaturization of atomic clock.
Example 4: according to embodiment 3, as shown in fig. 3, a vacuum angle valve 14 is fixedly connected to the atom gas cell 1; the vacuum angle valve 14 is provided with two connection ports, one of which is communicated with the inner cavity of the atomic gas chamber 1, and the other of which is connected with the cesium furnace 15.
The cesium furnace 15 is connected with the atomic gas chamber 1 through a vacuum angle valve 14, and the density of cesium atoms in the gas chamber is controlled through the opening and closing degree of the valve. Therefore, the flow of the generated cold cesium atom beam is always kept in a relatively fixed range, and the reduction of the flow of the cold cesium atom beam caused by the reduction of the cesium atom density in the atom gas chamber 1 is avoided. In addition, vacuum angle valve 14 belongs to prior art, is an automatic valve, when the pressure differential surpassed the default, can open automatically the utility model discloses in, when the atom air chamber 1 in because of cold cesium atom restraints are released and lead to pressure reduction, vacuum angle valve 14 is opened automatically under the effect of pressure, cesium oven 15 pours into the cesium atom into atom air chamber 1.
Example 5: according to the embodiment 4, the atom beam outlet 13 outside the atom air chamber 1 is provided with the vacuum differential tube 5 in a matching way and is communicated with the inner cavity of a three-dimensional magneto-optical trap device through the vacuum differential tube 5; the inner cavity of the three-dimensional magneto-optical trap device and the atom air chamber 1 are both vacuum cavities, and the pressure intensity in the inner cavity of the three-dimensional magneto-optical trap device is greater than the pressure intensity in the atom air chamber 1.
The utility model discloses in, the transition of three-dimensional magneto-optical trap device inner chamber and 1 internal pressure of atom air chamber is realized to vacuum differential pipe 5 mainly used. Because the pressure intensity in the inner cavity of the three-dimensional magneto-optical trap device is higher than the pressure intensity in the atom air chamber 1, the cold cesium atom beam in the atom air chamber 1 cannot enter the inner cavity of the three-dimensional magneto-optical trap device spontaneously under the action of no external force, and the cold cesium atom beam can enter the three-dimensional magneto-optical trap device under the action of pushing light only when the semiconductor laser 4 emits the pushing light. Therefore, the loss caused by collision with the trapped atoms in the three-dimensional magneto-optical trap can be effectively avoided.
Example 6: according to embodiment 5, the anti-helmholtz coils 2 are each separately powered.
The anti-helmholtz coils 2 are each separately powered mainly to avoid the centre of the magnetic field and the atom beam exit 133
Misalignment results in the axis of the atom beam exit 13 not being collinear with the center of the magnetic field. By this design, magnetic field errors due to coil assembly and manufacture can be eliminated.
Claims (8)
1. A cold cesium atomic beam source structure of a miniature atomic clock comprises an atomic gas chamber (1) and is characterized in that the atomic gas chamber (1) is a hollow cavity and is formed by sealing a frame body (11) and an optical glass window (12), and a cold cesium atomic group is arranged in the atomic gas chamber; the atomic gas chamber (1) is provided with two pairs of anti-Helmholtz coils (2) in the vertical direction in the space respectively, and the two pairs of anti-Helmholtz coils (2) are arranged symmetrically by taking the atomic gas chamber (1) as the center respectively; two groups of prism assemblies (3) are respectively arranged on the outer sides of the two pairs of anti-Helmholtz coils (2) in parallel, and the two groups of prism assemblies (3) are respectively arranged symmetrically by taking the atom air chamber (1) as a center; the two groups of prism assemblies (3) are respectively matched with two beams of incident laser outside the atomic gas chamber (1), two groups of laser light paths which are vertical to each other are formed in the atomic gas chamber (1), each group of laser light path consists of a positive beam and a negative beam, and the laser light paths shuttle at least once in the atomic gas chamber (1); the two groups of laser light paths are intersected at a zero point of a magnetic field generated by the anti-Helmholtz coil (2), and two-dimensional magneto-optical traps are formed in the atom air chamber (1), and the number of the two-dimensional magneto-optical traps is at least one; the two-dimensional magneto-optical trap forms an atomic beam by extruding cold cesium atomic groups, an atomic beam outlet (13) is arranged on one side of an atomic gas chamber (1) along the direction of the atomic beam, the atomic beam outlet (13) is a through hole, an optical glass window (12) is arranged on the other side of the atomic gas chamber, a semiconductor laser (4) is arranged outside the atomic gas chamber (1), and laser generated by the semiconductor laser (4) is coaxial with the atomic beam outlet (13).
2. A cold cesium atomic beam source structure of a micro atomic clock as claimed in claim 1, wherein said prism assembly (3) is composed of a first prism part (31), a second prism part (32); the first prism component (31) comprises a first base (311); a hollow channel is formed in the first base (311), two wedge-shaped prisms (313) are arranged in the hollow channel, and the two wedge-shaped prisms (313) are arranged in the front and back direction along the direction of incident laser.
3. A source structure of cold cesium atomic beam of a micro atomic clock as claimed in claim 2, wherein said second prism member (32) comprises a second base (321); the second base (321) or the first base (311) and the second base (321) are provided with secondary reflection prisms (312), and incident laser is reflected or reflected in a staggered mode between the first prism part (31) and the second prism part (32) through the secondary reflection prisms (312); a reflector (322) is arranged on the first base (311) or the second base (321); the reflecting mirror (322) is arranged at the tail end of the laser light path and is perpendicular to the laser light path.
4. A cold cesium atomic beam source structure of a micro atomic clock as claimed in claim 3, characterized in that a vacuum angle valve (14) is fixedly connected to said atomic gas chamber (1); the vacuum angle valve (14) is provided with two connecting ports, one connecting port is communicated with the inner cavity of the atomic gas chamber (1), and the other connecting port is connected with the cesium furnace (15).
5. The cold cesium atomic beam source structure of a micro atomic clock as claimed in claim 4, wherein two incident laser beams are generated by two polarization maintaining fibers (8); the polarization maintaining optical fiber (8) is fixedly connected with a laser beam expanding lens barrel (6); the laser beam expanding lens barrel (6) and the wedge prism (313) are positioned on the same straight line.
6. The cold cesium atomic beam source structure of a micro atomic clock according to claim 5, wherein a vacuum differential tube (5) is cooperatively arranged at an atomic beam outlet (13) outside the atomic gas chamber (1) and is communicated with an inner cavity of a three-dimensional magneto-optical trap device through the vacuum differential tube (5); the inner cavity of the three-dimensional magneto-optical trap device and the atom air chamber (1) are both vacuum cavities, and the pressure intensity in the inner cavity of the three-dimensional magneto-optical trap device is greater than the pressure intensity in the atom air chamber (1).
7. A source structure of cold cesium atomic beams for micro atomic clocks according to claim 6, characterized in that said anti Helmholtz coils (2) are each individually powered.
8. A cold cesium atom beam source structure of a micro atomic clock as claimed in claim 6, wherein said atom gas chamber (1), anti Helmholtz coil (2), prism assembly (3) are all wrapped inside a magnetic shielding box (7); the wire of the anti-Helmholtz coil (2), the semiconductor laser (4), the vacuum differential tube (5), the laser beam expanding lens cone (6) and the vacuum angle valve (14) all extend to the outside through the magnetic shielding box (7).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114413872A (en) * | 2021-12-10 | 2022-04-29 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Integrated cold atom interference gyroscope sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114413872A (en) * | 2021-12-10 | 2022-04-29 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Integrated cold atom interference gyroscope sensor |
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