Glass collimator for cesium clock

Abstract

The present invention discloses a glass collimator for a cesium clock, comprising: a collimation plate; a first collimation block, a second collimation block; a third collimation block; a fixing plug; the collimation plate is provided with a notch and a first groove and a second groove, the first collimation block and the second collimation block are respectively provided with the third groove, the first collimation block and the second collimation block are respectively provided on both sides of the collimation plate, the first groove is provided with a first opening, the third collimation block is provided with a punching area including a plurality of collimation channels, the third collimation block is accommodated in the first groove, the fixing plug is provided with a second opening connected to the hollow structure, and the fixing plug is accommodated in the accommodating groove. The present invention can improve the collimation efficiency and the opening area ratio.

Description

Technical Field

[0001] The present invention relates to the technical field of atomic clocks, and more specifically to a glass collimator for a cesium clock. Background Art

[0002] Atomic clocks are the most important key equipment in the field of timekeeping and time service in various countries. The more mature ones are mainly rubidium clocks, hydrogen clocks and cesium clocks. Among them, cesium clocks have the advantages of good long-term stability, high accuracy, good power-on reproducibility and "zero drift", and play an irreplaceable and important role.

[0003] The collimator is an important component of the cesium atomic clock. The collimator can improve the effective signal strength of the cesium atomic clock, reduce the stray cesium atomic noise, and thus effectively improve the performance indicators and service life of the cesium atomic clock. However, the opening area ratio of the collimator in the prior art is too small, resulting in too low collimation efficiency for the cesium atomic clock. Summary of the invention

[0004] In order to solve the technical problems raised in the background technology, the present invention proposes a glass collimator for a cesium clock, comprising:

[0005] Collimation plate;

[0006] A first collimation block and a second collimation block;

[0007] a third collimation block; and

[0008] A fixing plug having a hollow structure;

[0009] Among them, the alignment plate is provided with a notch and a first groove and a second groove opened on the surface of the notch, the first alignment block and the second alignment block are respectively provided with a third groove corresponding to the notch, the first alignment block and the second alignment block are respectively arranged on both sides of the alignment plate, so that the notch is connected with the third groove to form a receiving groove, the first groove is penetrated by a first opening, the third alignment block is provided with a punching area including a plurality of alignment channels, the third alignment block is accommodated in the first groove, so that the first opening is connected with the plurality of alignment channels, the fixing plug is provided with a second opening connected with the hollow structure, and the fixing plug is accommodated in the receiving groove, so that the second opening is connected with the plurality of alignment channels and the hollow structure is connected with the second groove.

[0010] Optionally, a pointing plate is also provided on the collimating plate.

[0011] Optionally, a heating wire hole is also provided on the collimating plate.

[0012] Optionally, the first collimation block and the second collimation block are fixed on both sides of the collimation plate by brazing.

[0013] Optionally, the fixing plug is fixed in the receiving groove by laser welding.

[0014] Optionally, the fixing plug is made of valveable alloy.

[0015] Optionally, the first collimation block and the second collimation block are made of oxygen-free copper.

[0016] Optionally, the third collimating block is made of glass.

[0017] The beneficial effects of the present invention are as follows:

[0018] The technical solution of the present invention has the advantages of clear principle and simple design, and can correspondingly improve the collimation efficiency and the opening area ratio, thereby improving the effective signal quality of the cesium atomic clock, reducing stray noise, extending the service life of the cesium atomic clock, and at the same time improving the centering and alignment accuracy of the collimator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A schematic structural diagram of a glass collimator for a cesium clock provided in an embodiment of the present invention is shown;

[0021] Figure 2 A schematic diagram showing the structure of a collimator plate in an embodiment of the present invention is shown;

[0022] Figure 3 A schematic structural diagram of a first collimation block in an embodiment of the present invention is shown;

[0023] Figure 4 A schematic structural diagram of a second collimation block in an embodiment of the present invention is shown;

[0024] Figure 5 A schematic structural diagram of a third collimation block in an embodiment of the present invention is shown;

[0025] Figure 6 A schematic structural diagram of a fixing plug in an embodiment of the present invention is shown.

[0026] In the figure: 100, collimation plate; 101, notch; 102, first groove; 103, second groove; 104, first opening; 105, heating wire hole; 200, first collimation block; 300, second collimation block; 400, third groove; 500, third collimation block; 501, punching area; 600, fixing plug; 601, second opening. DETAILED DESCRIPTION

[0027] To make the technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0028] Figure 1 FIG. 1 is a schematic diagram showing the structure of a glass collimator for a cesium clock according to an embodiment of the present invention. Figure 1 As shown, the glass collimator for a cesium clock includes: a collimating plate 100, a first collimating block 200, a second collimating block 300, a third collimating block 500 and a fixing plug 600 with a hollow structure.

[0029] exist Figure 2 In a specific example, the collimating plate 100 is provided with a notch 101 and a first groove 102 and a second groove 103 opened on the surface of the notch 101, wherein the first groove 102 and the second groove 103 are perpendicular to each other, and the first groove 102 is also provided with a first opening 104. It should be noted that in Figure 2 In the example, the notch 101 is square.

[0030] Figure 3 Schematic diagram of the structure of the first collimation block 200 in an embodiment of the present invention, Figure 4 FIG. 1 is a schematic diagram of the structure of the second collimation block 300 in an embodiment of the present invention, Figure 3 as well as Figure 4 It can be seen that the first collimation block 200 and the second collimation block 300 in the embodiment of the present invention have the same structure. The first collimation block 200 and the second collimation block 300 are respectively provided with a third groove 400 corresponding to the notch 101, and Figure 1 It can be seen that during installation, the first alignment block 200 and the second alignment block 300 need to be respectively arranged on both sides of the alignment plate 100 so that the notch 101 on the alignment plate 100 is connected with the third groove 400 to form a corresponding receiving groove.

[0031] Figure 5 is a schematic structural diagram of the third collimation block 500 in an embodiment of the present invention, Figure 5It can be seen that the third collimation block 500 is a rectangular structure, and a perforated area 501 is provided on the third collimation block 500. The perforated area 501 includes densely arranged large aspect ratio collimation channels. The collimation channels are arranged through the third collimation block 500. When installing, the third collimation block 500 needs to be placed in the first groove 102 so that the first opening 104 is connected with multiple collimation channels accordingly.

[0032] Figure 6 is a schematic diagram of the structure of the fixing plug 600 according to an embodiment of the present invention, Figure 6 It can be seen that the fixed plug 600 has a hollow structure, and second openings 601 connected to the hollow structure are opened on both sides of the fixed plug 600. When installing, the fixed plug 600 needs to be placed in the receiving groove so that the second opening 601 is connected to the multiple alignment channels on the third alignment block 500, and the hollow structure is also connected to the second groove 103 accordingly. Such a structure can make the fixed plug 600 fixed and sealed in the receiving groove, and the interior of the fixed plug 600 can also provide a cesium atom path and a cesium vapor chamber accordingly.

[0033] In summary, the glass collimator for a cesium clock described in the embodiment of the present invention can improve the collimation efficiency and the opening area ratio, thereby improving the effective signal quality of the cesium atomic clock, reducing stray noise, extending the service life of the cesium atomic clock, and at the same time improving the centering and alignment accuracy of the collimator.

[0034] Optionally, in the embodiment of the present invention, a pointing plate is further provided on the collimating plate 100 .

[0035] Specifically, the pointing plate can be formed integrally with the collimating plate 100 , and the pointing plate is mainly used for centering, collimating and aiming.

[0036] Optionally, in the embodiment of the present invention, a heating wire hole 105 is further provided on the collimating plate 100 .

[0037] Specifically, the setting of the heating wire hole is mainly used to facilitate the heating wire to enter the glass collimator for the cesium clock proposed in the embodiment of the present invention through the heating wire hole in the subsequent alignment process.

[0038] Optionally, in the embodiment of the present invention, the first collimation block 200 and the second collimation block 300 are fixed on both sides of the collimation plate 100 by brazing.

[0039] It should be noted that brazing refers to a welding method in which the solder with a melting point lower than the weldment and the weldment are heated to the melting temperature of the solder at the same time, and the liquid solder is used to fill the gap between the solid workpieces to connect the metals.

[0040] Optionally, in an embodiment of the present invention, the fixing plug 600 is fixed in the receiving groove by laser welding.

[0041] It should be noted that laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source.

[0042] Optionally, in an embodiment of the present invention, the material of the fixing plug 600 is a valveable alloy.

[0043] It should be noted that, as an example, the material of the fixing plug 600 can be selected from valve alloy, but those skilled in the art should know that the material of the fixing plug 600 is not limited thereto. Furthermore, in the embodiment of the present invention, the material of the collimating plate 100 can also be valve alloy.

[0044] Optionally, in the embodiment of the present invention, the material of the first collimation block 200 and the second collimation block 300 is oxygen-free copper.

[0045] It should be noted that, as an example, the material of the first collimation block 200 and the second collimation block 300 may be oxygen-free copper, but those skilled in the art should know that the material of the first collimation block 200 and the second collimation block 300 is not limited thereto.

[0046] Optionally, in the embodiment of the present invention, the third collimating block 500 is made of glass.

[0047] It should be noted that, as an example, the material of the third collimating block 500 may be glass, but those skilled in the art should know that the material of the third collimating block 500 is not limited thereto.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A glass collimator for a cesium clock, characterized in that: include: Collimation plate; A first collimation block and a second collimation block; A third collimation block; as well as A fixing plug having a hollow structure; The collimating plate is provided with a notch and a first groove and a second groove opened on the surface of the notch, the first collimating block and the second collimating block are respectively provided with a third groove corresponding to the notch, the first collimating block and the second collimating block are respectively arranged on both sides of the collimating plate, so that the notch is connected to the third groove to form a receiving groove, the first groove is penetrated with a first opening, the third collimating block is provided with a punching area including a plurality of collimating channels, the third collimating block is accommodated in the first groove, so that the first opening is connected to the plurality of collimating channels, the fixing plug is provided with a second opening connected to the hollow structure, the fixing plug is accommodated in the receiving groove, so that the second opening is connected to the plurality of collimating channels, and the hollow structure is connected to the second groove; The collimating plate is also provided with a pointing plate; The collimating plate is also provided with a heating wire hole.

2. The glass collimator for a cesium clock according to claim 1, characterized in that: The first collimation block and the second collimation block are fixed to two sides of the collimation plate by brazing.

3. The glass collimator for a cesium clock according to claim 1, characterized in that: The fixing plug is fixed in the receiving groove by laser welding.

4. The glass collimator for a cesium clock according to claim 1, characterized in that: The material of the fixing plug is valveable alloy.

5. The glass collimator for a cesium clock according to claim 1, characterized in that: The first collimating block and the second collimating block are made of oxygen-free copper.

6. The glass collimator for a cesium clock according to claim 1, characterized in that: The third collimating block is made of glass.

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