Miniaturized high-precision laser gyroscope

Abstract

The utility model provides a miniaturized high-precision laser gyroscope which comprises a cavity, a plurality of first mounting holes formed in the periphery of the cavity, and second mounting holes formed in the cavity in a penetrating manner; the plurality of hollow pipe groups are arranged in the cavity and are communicated with the plurality of first mounting holes; the shaking wheel is arranged in the second mounting hole; the light combination prism, the first anode, the second anode, the cathode, the first spherical mirror and the second spherical mirror are respectively arranged on the plurality of first mounting holes; a first frequency stabilizer and a second frequency stabilizer are respectively arranged on the first spherical mirror and the second spherical mirror; according to the miniaturized high-precision laser gyroscope provided by the utility model, the overall use is not influenced while the overall miniaturization is realized, and the overall precision is improved by adjusting the vibration frequency.

Description

Technical Field

[0001] The utility model relates to the technical field of laser gyroscopes, and in particular to a miniaturized high-precision laser gyroscope. Background Art

[0002] A laser gyroscope is a sensing device based on the Sagnac effect for measuring the angular motion of a carrier, and is one of the core components of an inertial navigation system. Compared with other types of gyroscopes such as mechanical gyroscopes, three-float gyroscopes, electrostatic gyroscopes, and fiber optic gyroscopes, the laser gyroscope has the advantages of fast startup, high precision, large dynamic range, shock resistance, high stability, etc., and is currently the most widely used gyroscope.

[0003] In the prior art, the publication number is CN215447951U, and the name is a four-frequency differential laser gyro, which discloses an annular resonator and a permanent magnet; the annular resonator includes a cavity body, a cathode, a first anode, a second anode, a gain gas chamber, a first mirror, a second mirror, a third mirror, and a rotatory optical element mirror. Among them, the rotatory optical element mirror realizes the functions of Faraday rotation and reflection simultaneously through the internal reflection of the glass medium, replacing the two parts of the rotatory optical element and the mirror in the traditional four-frequency differential laser gyro, and solving the problem of backscattering caused by the perpendicular incidence of laser on the rotatory optical element. By adopting a quadrilateral cavity body, sufficient gas in the capillary can be realized, and the layout space of components is relatively abundant, so as to achieve higher precision;

[0004] However, with the requirement of miniaturization of laser gyroscopes, in the prior art, the publication number is CN218443919U, and the name is an external shape structure of a miniaturized laser gyro, which includes a laser cavity body, and capillary holes are arranged in the parallel direction of the edge of the laser cavity body; a spherical mirror, a plane mirror, a cathode, and an anode are respectively arranged on the outer surface of the laser cavity body, a frequency stabilization is arranged on the spherical mirror, a beam combining prism and a beam splitting prism are arranged on the plane mirror, a central hole is arranged inside the laser cavity body, and a dither wheel is arranged inside the central hole. The external shape structure of this miniaturized laser gyro reduces the volume and weight of the product, improves the applicable range of the product, and the miniaturized laser gyro can be used on some missiles and aircraft with a small load capacity, reducing the production time. Compared with the traditional cavity design, the volume of the capillary inside the triangular cavity is small, and the time required to create a vacuum environment and then fill it with a helium-neon mixed gas is much shorter, greatly improving the production efficiency, reducing the assembly link, reducing the number of required components, and reducing the cost. However, although the triangular cavity reduces the size of the laser gyroscope, it does not effectively control the influence caused by the dithering of the laser gyroscope, thereby reducing the precision of the laser gyroscope during use.

[0005] Therefore, there is an urgent need for a laser gyroscope with a reasonable structure and capable of realizing miniaturization. Summary of the Utility Model

[0006] The object of the present utility model is to provide a miniaturized high-precision laser gyroscope, which can solve the above technical problems;

[0007] The present utility model provides a miniaturized high-precision laser gyroscope, comprising:

[0008] A cavity, with a number of first mounting holes provided on the periphery of the cavity, and a second mounting hole penetrating through the cavity;

[0009] A number of hollow tube groups, arranged in the cavity and communicating with a number of first mounting holes;

[0010] A dither wheel, arranged in the second mounting hole;

[0011] A beam combining prism, a first anode, a second anode, a cathode, a first spherical mirror and a second spherical mirror are respectively arranged on a number of first mounting holes; and a first frequency stabilizer and a second frequency stabilizer are respectively arranged on the first spherical mirror and the second spherical mirror.

[0012] As a further technical solution, the number of first mounting holes includes:

[0013] A first spherical mirror mounting hole and a second spherical mirror mounting hole, oppositely arranged on both sides of the cavity;

[0014] A first anode mounting hole and a second anode mounting hole, oppositely arranged on both sides of the cavity;

[0015] A beam combining prism mounting hole and a cathode mounting hole, oppositely arranged on both sides of the cavity;

[0016] The beam combining prism is arranged in the beam combining prism mounting hole; the first anode and the second anode are respectively arranged in the first anode mounting hole and the second anode mounting hole; the cathode is arranged in the cathode mounting hole; the second spherical mirror and the second spherical mirror are respectively arranged in the first spherical mirror mounting hole and the second spherical mirror mounting hole.

[0017] As a further technical solution, the first spherical mirror mounting hole, the second spherical mirror mounting hole and the beam combining prism mounting hole are respectively arranged at the chamfered corners of the cavity.

[0018] As a further technical solution, the hollow tube group includes:

[0019] A first capillary tube, arranged between the beam combining prism mounting hole and the first spherical mirror mounting hole;

[0020] A second capillary tube, arranged between the beam combining prism mounting hole and the second spherical mirror mounting hole;

[0021] A third capillary tube, arranged between the first spherical mirror mounting hole and the second spherical mirror mounting hole.

[0022] As a further technical solution, the first anode mounting hole, the second anode mounting hole, and the cathode mounting hole are respectively communicated with the first capillary, the second capillary, and the third capillary through connecting channels.

[0023] As a further technical solution, the second mounting hole includes:

[0024] A central hole that penetrates through the cavity;

[0025] A plurality of semi-circular openings that penetrate through the cavity and are arranged at equal intervals around the central hole.

[0026] As a further technical solution, the jitter wheel includes:

[0027] A first wheel body and a second wheel body, and the second wheel body is arranged on the first wheel body;

[0028] A support that is arranged on the second wheel body;

[0029] A first feedback body for transmitting the jitter generated by the second wheel body to the support, which is arranged on the second wheel body;

[0030] A second feedback body for obtaining the jitter frequency of the cavity, which is arranged on the first wheel body.

[0031] As a further technical solution, the first wheel body includes a wheel frame and a wheel plate, and the wheel plate is arranged on the periphery of the wheel frame; wherein, the wheel frame includes three first plate bodies, and the included angles between adjacent first plate bodies are the same; wheel plates are arranged on all three first plate bodies;

[0032] The second wheel body includes three second plate bodies, and the three second plate bodies are respectively arranged between adjacent first plate bodies.

[0033] As a further technical solution, there are three supports, which are respectively arranged on the three second plate bodies.

[0034] As a further technical solution, the first feedback bodies are oppositely arranged on both sides of the second plate body; and first feedback bodies are arranged on all three second plate bodies;

[0035] The second feedback body is arranged on one side of the first plate body; and second feedback bodies are arranged on all three first plate bodies.

[0036] The technical solution of the present utility model installs a combining prism, a first anode, a second anode, a cathode, a first spherical mirror and a second spherical mirror respectively by arranging a plurality of first mounting holes on the cavity. The hollow tube group connects a spherical mirror mounting hole, a second spherical mirror mounting hole, a first anode mounting hole, a second anode mounting hole, a combining prism mounting hole and a cathode mounting hole, enabling the light beam to be transmitted in the hollow tube group, further optimizing the overall size. In addition, by setting the vibration wheel, the vibration frequency can be obtained for feedback and adjusted through the vibration wheel to maintain the overall vibration frequency at the set value, further improving the overall stability. Compared with the prior art, while miniaturizing the whole, it does not affect the overall use, and improves the overall accuracy by adjusting the vibration frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 Structural schematic diagram of a miniaturized and high-precision laser gyroscope of the present utility model;

[0039] Figure 2 Stereogram of a miniaturized and high-precision laser gyroscope of the present utility model at an angle;

[0040] Figure 3 Stereogram of a miniaturized and high-precision laser gyroscope of the present utility model at another angle;

[0041] Figure 4 Stereogram of a miniaturized and high-precision laser gyroscope of the present utility model at yet another angle;

[0042] Figure 5 Stereogram of a miniaturized and high-precision laser gyroscope of the present utility model at yet another angle;

[0043] Figure 6 For Figure 1 right view;

[0044] Figure 7 For Figure 6 sectional view of part A-A in

[0045] Figure 8 Stereogram of the cavity of the present utility model at an angle;

[0046] Figure 9This is a three-dimensional view of the cavity of the present utility model from another angle;

[0047] Figure 10 This is a schematic structural view of the cavity of the present utility model from one angle;

[0048] Figure 11 This is a schematic structural view of the jitter wheel of the present utility model;

[0049] Figure 12 This is a three-dimensional view of the jitter wheel of the present utility model from one angle;

[0050] Figure 13 This is a three-dimensional view of the jitter wheel of the present utility model from another angle;

[0051] Explanation of reference numerals:

[0052] 1 - Cavity; 21 - First spherical mirror mounting hole; 22 - Second spherical mirror mounting hole; 23 - First anode mounting hole; 24 - Second anode mounting hole; 25 - Light-combining prism mounting hole; 26 - Cathode mounting hole; 31 - Central hole; 32 - Semi-circular opening; 41 - First capillary; 42 - Second capillary; 43 - Third capillary; 44 - Connecting channel; 5 - Jitter wheel; 51 - First wheel body; 511 - First plate body; 512 - Wheel plate; 52 - Second wheel body; 521 - Second plate body; 53 - Support; 54 - First feedback body; 55 - Second feedback body; 61 - Light-combining prism; 62 - First anode; 63 - Second anode; 64 - First spherical mirror; 65 - Second spherical mirror; 66 - Cathode; 67 - First frequency stabilizer; 68 - Second frequency stabilizer. Detailed implementation manners

[0053] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0054] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0055] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined. In addition, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0056] As Figures 1 - 13 shown, a miniaturized high-precision laser gyroscope proposed by the present utility model includes:

[0057] A cavity 1. It should be noted that in the present utility model, the cavity 1 is preferably formed after chamfering the three corners of a triangular structure, and a plurality of first mounting holes are provided on the periphery of the cavity 1, and a second mounting hole is provided through the cavity 1; specifically, the plurality of first mounting holes are arranged along the periphery of the cavity 1, a plurality of hollow tube groups are arranged in the cavity 1 and communicate with the plurality of first mounting holes; a dither wheel 5 is arranged in the second mounting hole; a beam combining prism 61, a first anode 62, a second anode 63, a cathode 66, a first spherical mirror 64 and a second spherical mirror 65 are respectively arranged on the plurality of first mounting holes; and a first frequency stabilizer 67 and a second frequency stabilizer 68 are respectively arranged on the first spherical mirror 64 and the second spherical mirror 65.

[0058] During the actual working stage, He-Ne gas is filled in the hollow tube groups, the first anode 62 and the second anode 63 are connected to positive electricity, and the cathode 66 is connected to negative electricity; a first light beam is formed between the first anode 62 and the cathode 66, a second light beam is formed between the second anode 63 and the cathode 66, the first light beam and the second light beam travel in the hollow tube groups and respectively rotate in opposite directions through the first spherical mirror 64 and the second spherical mirror 65, and the rotation angular velocity of the carrier is obtained through the Sagnac effect when converging at the beam combining prism 61; in addition, the dither wheel 5 avoids the lock-in area of the laser gyroscope through mechanical dithering, thereby improving the accuracy and performance of the laser gyroscope; specifically, on the one hand, the dither generated by the dither wheel 5 is transmitted to the cavity 1, and on the other hand, a feedback vibration force is applied through the dither wheel 5 to keep the vibration frequency of the cavity 1 at a set value. In the present utility model, the vibration frequency of the cavity 1 is 400 - 600 Hz.

[0059] As Figures 8 - 10As shown, a plurality of first mounting holes include a first spherical mirror mounting hole 21, a second spherical mirror mounting hole 22, a first anode mounting hole 23, a second anode mounting hole 24, a beam combining prism mounting hole 25, and a cathode mounting hole 26. The first spherical mirror mounting hole 21 and the second spherical mirror mounting hole 22 are oppositely arranged on both sides of the cavity 1; the first anode mounting hole 23 and the second anode mounting hole 24 are oppositely arranged on both sides of the cavity 1; the beam combining prism mounting hole 25 and the cathode mounting hole 26 are oppositely arranged on both sides of the cavity 1; the beam combining prism 61 is arranged in the beam combining prism mounting hole 25; the first anode 62 and the second anode 63 are respectively arranged in the first anode mounting hole 23 and the second anode mounting hole 24; the cathode 66 is arranged in the cathode mounting hole 26; the first spherical mirror 65 and the second spherical mirror 65 are respectively arranged in the first spherical mirror mounting hole 21 and the second spherical mirror mounting hole 22;

[0060] Specifically, in the present utility model, the first spherical mirror mounting hole 21, the second spherical mirror mounting hole 22, and the beam combining prism mounting hole 25 are respectively arranged at the chamfered corners of the cavity 1; after the cavity 1 is chamfered, a plane is formed at the chamfered position; and after openings are respectively made at the three planes, the first spherical mirror mounting hole 21, the second spherical mirror mounting hole 22, and the beam combining prism mounting hole 25 are formed;

[0061] The hollow tube group includes a first capillary tube 41, a second capillary tube 42, and a third capillary tube 43. The first capillary tube 41 is arranged between the beam combining prism mounting hole 25 and the first spherical mirror mounting hole 21; the second capillary tube 42 is arranged between the beam combining prism mounting hole 25 and the second spherical mirror mounting hole 22; the third capillary tube 43 is arranged between the first spherical mirror mounting hole 21 and the second spherical mirror mounting hole 22; of course, for better cooperation with the installation of the first capillary tube 41, the second capillary tube 42, and the third capillary tube 43, the first spherical mirror mounting hole 212, the second spherical mirror mounting hole 22, and the beam combining prism mounting hole 25 all extend into the cavity 1 and are respectively communicated with the hollow tube group;

[0062] In addition, in the present utility model, the first anode mounting hole 23, the second anode mounting hole 24, and the cathode mounting hole 26 are respectively communicated with the hollow tube group through the connecting channels 44; specifically, the first anode mounting hole 23, the second anode mounting hole 24, and the cathode mounting hole 26 are respectively communicated with the first capillary tube 41, the second capillary tube 42, and the third capillary tube 43 through the connecting channels 44; as Figure 7As shown, the connection channel 44 includes a first channel, a second channel, a third channel, and a fourth channel. The first anode mounting hole 23 communicates with the first capillary 41 through the first channel; the second anode mounting hole 24 communicates with the second capillary 42 through the second channel; the cathode mounting hole 26 communicates with the third capillary 43 through the third channel and the fourth channel. Specifically, the section of the third capillary 43 communicating with the first spherical mirror mounting hole 21 is the first pipe section, and the section of the third capillary 43 communicating with the second spherical mirror mounting hole 22 is the second pipe section. The first pipe section communicates with the cathode mounting hole 26 through the third channel, and the second pipe section communicates with the cathode mounting hole 267 through the fourth channel; thus, the first light beam passes through the third channel, the first pipe section, and the first capillary 41, and the second light beam passes through the fourth channel, the second pipe section, and the second capillary 42.

[0063] As Figure 8 shown in FIG. 8 or 9, the second mounting hole includes a central hole 31 and a plurality of semi-circular openings 32. The central hole 31 penetrates through the cavity 1; the plurality of semi-circular openings 32 penetrate through the cavity 1 and are equidistantly arranged around the central hole 31; specifically, the center of the central hole 31 is located at the intersection of the three center lines of the cavity 1 (triangular structure); among them, the diameter of the central hole 31 needs to be adjusted according to the size of the dithering wheel 5, and the present invention does not further limit this; in addition, the number of semi-circular openings 32 is determined according to the structure of the dithering wheel 5, and preferably three in the present invention, and are equidistantly arranged around the central hole 31;

[0064] As Figures 11 - 13 shown, the dithering wheel 5 includes a first wheel body 51, a second wheel body 52, and a support 53. The second wheel body 52 is arranged on the first wheel body 51; the support 53 is arranged on the second wheel body 52; the first feedback body 54 is arranged on the second wheel body 52, and the dithering generated by the second wheel body 52 is transmitted to the support 53 through the first feedback body 54; the second feedback body 55 is arranged on the first wheel body 51, and the dithering frequency of the cavity 1 is obtained through the second wheel body 52; among them, the support 53 is provided with a mounting hole, and the support 53 can be connected to the cavity 1 through components such as screws;

[0065] During the use stage, the second wheel body 52 is driven to vibrate by the first feedback body 54, and the vibration is transmitted to the cavity 1 through the support 53, so as to measure the vibration frequency through the laser gyroscope. Specifically, the laser gyroscope measures the vibration obtained by the cavity 1, and converts the measured vibration time-domain information into a frequency signal through Fourier transform, so as to obtain the vibration frequency; the second feedback body 55 applies a feedback vibration force to the first wheel body 51 by using the piezoelectric effect, so that the vibration frequency of the cavity 1 is maintained at a set value; thereby improving the accuracy of the laser gyroscope; in the present invention, the vibration frequency of the cavity 1 is 400-600 Hz; in addition, to ensure the overall strength, preferably, the first wheel body 51, the second wheel body 52 and the support 53 are integrally formed; in the present invention, preferably, the first feedback body 54 and the second feedback body 55 are both piezoelectric ceramics;

[0066] The first wheel body 51 includes a wheel frame and a wheel plate 512, and the wheel plate 512 is arranged on the periphery of the wheel frame. Among them, the wheel frame includes three first plate bodies 511, and the included angles between adjacent first plate bodies 511 are the same; the wheel plate 512 is arranged on all three first plate bodies 511; specifically, the included angles between the three first plate bodies 511 are all 120°, and in order to cooperate with the central hole 31 on the cavity 1, preferably, the wheel plate 512 is an arc-shaped plate to ensure that it can be adapted to the central hole 31 after the first wheel body 51 is placed in the central hole 31;

[0067] The second wheel body 52 includes three second plate bodies 521, and the three second plate bodies 521 are respectively arranged between adjacent first plate bodies 511; as Figure 11 shown, the three second plate bodies 521 are staggered between the three first plate bodies 511, and in the present invention, the included angles between the three second plate bodies 521 are the same, all 120°; of course, in order to better connect with the cavity 1, preferably, there are three supports 53, which are respectively arranged on the three second plate bodies 521; in this way, when connecting with the cavity 1, the three supports 53 can be used to connect with the cavity 1 at the same time;

[0068] As Figure 11 shown, the diameter of the circle where the peripheries of the three second plate bodies 521 are located is larger than the diameter of the circle where the peripheries of the three first plate bodies 511 are located; specifically, the circle where the ends of the three second plate bodies 521 far from the center of the wheel frame are located is larger than the circle where the first plate bodies 511 are connected to the wheel 2; in addition, after installation, it is necessary to ensure that there is no contact between the second plate body 521 and the cavity 1;

[0069] As Figures 11 - 13As shown, the first feedback body 54 is relatively arranged on both sides of the second plate body 521; and the first feedback body 54 is arranged on each of the three second plate bodies 521; the second feedback body 55 is arranged on one side of the first plate body 511; and the second feedback body 55 is arranged on each of the three first plate bodies 511; the jitter of the second plate body 521 is obtained through the first feedback body 54 on both sides of the second plate body 521; the jitter frequency of the cavity 1 is obtained through the feedback body on one side of the first plate body 511;

[0070] To better understand the technical solution of the present invention, the working principle is described in detail as follows:

[0071] The support 53 is fixed to the cavity 1 by screws, so that the jitter wheel 5 is installed in the cavity 1, and the beam combining prism 61 is arranged in the beam combining prism mounting hole 25; the first anode 62 and the second anode 63 are respectively arranged in the first anode mounting hole 23 and the second anode mounting hole 24; the cathode 66 is arranged in the cathode mounting hole 26; the first spherical mirror 64 and the second spherical mirror 65 are respectively arranged in the first spherical mirror mounting hole 21 and the second spherical mirror mounting hole 22; the overall assembly is completed, ensuring that the first capillary 41 connects the beam combining prism mounting hole 25 and the first spherical mirror mounting hole 21, and the second capillary 42 connects the beam combining prism mounting hole 25 and the second spherical mirror mounting hole 22; the third capillary 43 connects the first spherical mirror mounting hole 21 and the second spherical mirror mounting hole 22; in addition, ensure that the first anode mounting hole 23 is connected to the first capillary 41 through the first channel; the second anode mounting hole 24 is connected to the second capillary 42 through the second channel; the cathode mounting hole 26 is connected to the third capillary 43 through the third channel and the fourth channel; He-Ne gas is filled in the first capillary 41, the second capillary 42 and the third capillary 43;

[0072] The first anode 62 and the second anode 63 are connected to positive electricity, and the cathode 66 is connected to negative electricity; a first light beam is formed between the first anode 62 and the cathode 66, and a second light beam is formed between the second anode 63 and the cathode 66. The first light beam travels through the third channel, the first pipe section and the first capillary 41; the second light beam travels through the fourth channel, the second pipe section and the second capillary 42; and during the traveling process of the first light beam and the second light beam, they respectively rotate in opposite directions through the first spherical mirror 64 and the second spherical mirror 65, and converge at the beam combining prism 61 to obtain the rotational angular velocity of the carrier through the Sagnac effect; in addition, during the use stage, the first frequency stabilizer 67 and the second frequency stabilizer 68 change the sizes of the first spherical mirror 64 and the second spherical mirror 65 in real time through the piezoelectric effect, so that the first light beam and the second light beam are kept consistent, thereby reducing the influence of temperature and vibration on the laser gyroscope and further improving the accuracy of the laser gyroscope;

[0073] In addition, the dithering wheel 5 avoids the lock-in area of the ring laser gyroscope through mechanical dithering, thereby improving the accuracy and performance of the ring laser gyroscope. Specifically, the second wheel body 52 is driven to dither by the first feedback body 54, and the dithering is transmitted to the cavity 1 through the support 53, so as to measure the dithering frequency through the ring laser gyroscope. Specifically, the ring laser gyroscope measures the dithering obtained by the cavity 1, and converts the measured vibration time-domain information into a frequency signal by Fourier transform, so as to obtain the vibration frequency. The second feedback body 55 applies a feedback vibration force to the first wheel body 51 by using the piezoelectric effect, so that the vibration frequency of the cavity 1 is maintained at a set value, thereby improving the accuracy of the ring laser gyroscope. In the present utility model, the vibration frequency of the cavity 1 is 400-600 Hz.

[0074] Through the above solution, while ensuring the miniaturization of the ring laser gyroscope, the vibration frequency of the cavity 1 is maintained within a set range by adjusting the vibration frequency, further improving the overall accuracy.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A miniaturized high-precision laser gyroscope, characterized in that: include: A cavity (1), wherein a plurality of first mounting holes are arranged on the periphery of the cavity (1), and a second mounting hole is arranged through the cavity (1); A plurality of hollow tube groups are arranged in the cavity (1) and are connected to a plurality of first mounting holes; A shaking wheel (5), arranged in the second mounting hole; The light-combining prism (61), the first anode (62), the second anode (63), the cathode (66), the first spherical mirror (64) and the second spherical mirror (65) are respectively arranged on the first mounting holes; and the first spherical mirror (64) and the second spherical mirror (65) are respectively provided with a first frequency stabilizer (67) and a second frequency stabilizer (68).

2. The miniaturized high-precision laser gyroscope according to claim 1, characterized in that: The plurality of first mounting holes include: A first spherical mirror mounting hole (21) and a second spherical mirror mounting hole (22) are arranged oppositely on two sides of the cavity (1); A first anode mounting hole (23) and a second anode mounting hole (24) are arranged oppositely on two sides of the cavity (1); The light combining prism mounting hole (25) and the cathode mounting hole (26) are arranged oppositely on two sides of the cavity (1); The light-combining prism (61) is arranged in the light-combining prism mounting hole (25); the first anode (62) and the second anode (63) are arranged in the first anode mounting hole (23) and the second anode mounting hole (24), respectively; the cathode (66) is arranged in the cathode mounting hole (26); and the second spherical mirror (65) and the second spherical mirror (65) are arranged in the first spherical mirror mounting hole (21) and the second spherical mirror mounting hole (22), respectively.

3. The miniaturized high-precision laser gyroscope according to claim 2, characterized in that: The first spherical mirror mounting hole (21), the second spherical mirror mounting hole (22) and the light-combining prism mounting hole (25) are respectively arranged at the cut corners of the cavity (1).

4. The miniaturized high-precision laser gyroscope according to claim 2, characterized in that: The hollow tube group comprises: A first capillary tube (41) is arranged between the light-combining prism mounting hole (25) and the first spherical mirror mounting hole (21); A second capillary tube (42) is arranged between the light-combining prism mounting hole (25) and the second spherical mirror mounting hole (22); The third capillary tube (43) is arranged between the first spherical mirror mounting hole (21) and the second spherical mirror mounting hole (22).

5. The miniaturized high-precision laser gyroscope according to claim 4, characterized in that: The first anode mounting hole (23), the second anode mounting hole (24) and the cathode mounting hole (26) are respectively connected to the first capillary tube (41), the second capillary tube (42) and the third capillary tube (43) through a connecting channel (44).

6. The miniaturized high-precision laser gyroscope according to claim 1, characterized in that: The second mounting hole comprises: A central hole (31) extending through the cavity (1); A plurality of semicircular openings (32) penetrate the cavity (1) and are arranged at equal intervals around the central hole (31).

7. The miniaturized high-precision laser gyroscope according to claim 1, characterized in that: The shaking wheel (5) comprises: A first wheel body (51) and a second wheel body (52), wherein the second wheel body (52) is arranged on the first wheel body (51); A support (53) is arranged on the second wheel body (52); A first feedback body (54) for transmitting the vibration generated by the second wheel body (52) to the support (53), and arranged on the second wheel body (52); A second feedback body (55) for obtaining the vibration frequency of the cavity (1) is arranged on the first wheel body (51).

8. The miniaturized high-precision laser gyroscope according to claim 7, characterized in that: The first wheel body (51) comprises: a wheel frame and a wheel plate (512), wherein the wheel plate (512) is arranged on the periphery of the wheel frame; wherein the wheel frame comprises three first plates (511), and the angles between adjacent first plates (511) are the same; and the wheel plates (512) are arranged on the three first plates (511); The second wheel body (52) comprises three second plates (521), and the three second plates (521) are respectively arranged between adjacent first plates (511).

9. The miniaturized high-precision laser gyroscope according to claim 8, characterized in that: There are three supports (53), which are respectively arranged on three second plates (521).

10. The miniaturized high-precision laser gyroscope according to claim 8, characterized in that: The first feedback body (54) is relatively arranged on two sides of the second plate body (521); and the first feedback body (54) is arranged on each of the three second plates (521); The second feedback body (55) is arranged on one side of the first plate body (511); and the second feedback body (55) is arranged on each of the three first plates (511).

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