Gyroscope temperature fluctuation error suppression system and method

Abstract

The present invention relates to the field of laser gyro technology, and specifically refers to a system and method based on gyro temperature fluctuation error suppression, wherein the system includes a gyro body, the gyro body includes a base and an outer shell that cooperate with each other to form a cavity, a base with a resonator is provided on the upper part of the base and inside the outer shell, and is characterized in that: it also includes a suppression component located on the gyro body, the suppression component includes a temperature correction mechanism; the temperature correction mechanism includes a first temperature control module and a second temperature control module, the first temperature control module is used to control the temperature of the outer shell, and the second temperature control module is used to control the temperature of the resonator, thereby realizing the joint and precise control of the temperature of the outer shell and the resonator, and effectively reducing the influence of temperature fluctuations on the accuracy of the gyroscope.

Description

Technical Field

[0001] The present invention relates to the technical field of laser gyroscopes, and in particular to a system and method for suppressing temperature fluctuation errors of gyroscopes. Background Art

[0002] A laser gyroscope is a device that uses the optical path difference of a laser beam to measure the angular displacement of an object. It is much more accurate than a mechanical gyroscope, has no moving parts, is easy to maintain, has high reliability, and has a long lifespan, thus replacing the mechanical gyroscope. In modern high-precision navigation and positioning systems, the gyroscope is the core sensor, and its performance directly affects the accuracy of the system. However, the gyroscopes in the prior art have significant defects in temperature stability. Temperature fluctuations can cause thermal expansion or thermal stress in the internal structure of the gyroscope, leading to measurement errors. Especially in extreme temperature environments, this error may be amplified, seriously affecting navigation accuracy and reliability. Therefore, in order to suppress the temperature fluctuation error of the gyroscope, suppression measures are often used to suppress the temperature fluctuation of the gyroscope.

[0003] However, in the prior art, the means for suppressing temperature fluctuations of laser gyroscopes often have certain limitations, that is, the temperature control and suppression means are often isolated and single, lacking a comprehensive control strategy for all components of the gyroscope, and only focusing on the core structure of the resonator inside the gyroscope. It does not fully consider the temperature differences and thermal conductivity characteristics of the various components inside the laser gyroscope, and ignores the negative impact of temperature fluctuations of the gyroscope's outer shell and other components on the overall performance of the gyroscope, which greatly affects the working performance of the gyroscope. Summary of the invention

[0004] The present invention aims to provide a gyroscope temperature fluctuation error suppression system to solve one of the problems in the above-mentioned background technology.

[0005] Specifically, the present invention is achieved through the following technical solutions:

[0006] The system for suppressing temperature fluctuation error of gyroscope includes a gyroscope body, wherein the gyroscope body includes a base and an outer shell that cooperate with each other to form a cavity, a base with a resonator is arranged on the upper part of the base and inside the outer shell, and a suppression component is located on the gyroscope body, wherein the suppression component includes a temperature correction mechanism;

[0007] The temperature correction mechanism includes a first temperature control module and a second temperature control module, wherein the first temperature control module is used to control the temperature of the outer shell, and the second temperature control module is used to control the temperature of the resonator;

[0008] The first temperature control module includes a storage cylinder, a heat exchange element and a capillary tube which are interconnected. The storage cylinder stores a refrigerant and is connected to the heat exchange element. A circulating pump is also provided inside the storage cylinder. The heat exchange element is installed in a cavity formed by the outer shell and the base and is distributed around the resonator in a circular array. The capillary tube is opened inside the outer shell. The circulating pump is used to pump the refrigerant into the heat exchange element to exchange heat with the heat in the cavity formed by the outer shell and the base. As the refrigerant flows in the capillary tube inside the outer shell, the heat is evenly dispersed on the outer shell.

[0009] In some preferred technical schemes, a heat exchange cavity is provided inside the heat exchange element, and a spiral heat exchange tube is provided inside the heat exchange cavity. The heat exchange tube has an air inlet end and an air outlet end, and the air inlet end is located at the upper part of the heat exchange cavity, and extends into the cavity formed by the outer shell and the base after passing through the heat exchange cavity. A micro-induced draft fan is also installed at the port position of the air inlet end. The air outlet end of the heat exchange tube is located at the lower part of the air inlet end, and also passes through the heat exchange cavity and extends into the cavity formed by the outer shell and the base. A micro-exhaust fan is provided at the port position of the air outlet end.

[0010] A heat dissipation foil is also arranged in the middle of the top of the outer shell. The heat dissipation foil is attached to the middle of the top of the outer shell and matches the curvature of the outer shell. Fins are arranged on the top of the heat dissipation foil.

[0011] The capillary tubes are provided in a plurality of groups, and the plurality of groups of capillary tubes are evenly distributed in the outer shell. One end of any group of the capillary tubes is connected to the heat exchange cavity, and the other end extends upward along the radial direction of the outer shell, is bent after passing through the heat dissipation foil, and then extends downward along the radial direction of the outer shell again and is connected to the storage cylinder.

[0012] The tube body of the capillary tube forms an S-shaped heat dissipation tube at the position where it passes through the heat dissipation foil, and the inner surface of the outer shell is coated with a layer of heat-conducting film.

[0013] A cavity is provided in the middle of the bottom of the base, the storage cylinder is located in the cavity, and heat dissipation fins are provided on the outside circumference thereof. Ventilation ducts connected to the outside of the base are provided at both ends of the cavity, and an axial flow fan is installed in one of the ventilation ducts.

[0014] The second temperature control module includes a heat receiving body filled with a phase change heat absorbing material, the heat receiving body is located in a concave groove opened at the bottom of the base, a heat conducting sheet is arranged at the top of the base at the contact position with the resonator, the bottom of the heat conducting sheet and the heat receiving body are connected by a plurality of heat conducting columns inserted in the base, the upper end of the heat conducting column in contact with the heat conducting sheet is the heat receiving end, and the bottom end thereof extends into the heat receiving body as the heat dissipation end, and a plurality of heat dissipation components are also provided inside the heat receiving body, the heat dissipation components include a liquid storage pipe, a heat dissipation pipe and a circulation pipe, the liquid storage pipe is made of aluminum foil, and is transversely arranged above the inside of the heat receiving body, a heat conducting medium is stored in the liquid storage pipe, the heat dissipation pipe is transversely arranged in the cavity, and the heat dissipation pipe is connected to the liquid storage pipe through a circulation pipe.

[0015] The diameter of the heat dissipation pipe is larger than that of the circulation pipe, and a plurality of heat dissipation teeth are arranged around the outer portion of the heat dissipation pipe, and a flow channel in the shape of a sine function curve is formed between any two adjacent heat dissipation teeth.

[0016] Furthermore, an elastic airbag is wrapped around the outside of the liquid storage tube, the interior of the elastic airbag is filled with thermal expansion gas, and a plurality of flexible metal sheets are bonded to the outside of the elastic airbag, and conical thorns are provided on the surface of the flexible metal sheets. Initially, the elastic airbag is in a contracted state.

[0017] Based on a gyroscope temperature fluctuation error suppression method, according to a gyroscope temperature fluctuation error suppression system, the method includes the following steps:

[0018] S1. When the gyro body generates heat and causes temperature fluctuations during operation, the circulation pump in the storage cylinder in the first temperature control module is started to push the refrigerant to circulate between the storage cylinder, the heat exchange element and the capillary tube. The refrigerant enters the heat exchange cavity of the heat exchange element. The micro-induced draft fan and the micro-exhaust fan work synchronously to introduce hot air into the heat exchange tube and perform heat exchange with the refrigerant. The air after heat exchange is discharged into the cavity through the air outlet end of the heat exchange tube, thereby performing heat exchange with the air in the cavity formed by the outer shell and the base.

[0019] S2, the refrigerant medium continuously circulates in the capillary tube to evenly distribute the heat to the surface of the outer shell, and the heat dissipation efficiency of the refrigerant medium is improved through the heat dissipation foil and S-shaped heat dissipation pipe to optimize the heat flow and ensure uniform temperature of the outer shell;

[0020] S3. The heat conducting sheet and heat conducting column of the second temperature control module conduct heat from the resonator to the heat receiving body. After the phase change material in the heat receiving body absorbs the heat, it stores the heat through phase change. When the heat receiving body stores heat, its excess heat is dissipated into the cavity through the heat dissipation component in the heat receiving body. At the same time, the axial flow fan in one of the ventilation ducts works and blows air to promote the air flow in the base cavity, so as to promote the cooling of the heat carried by the refrigerant medium in the storage cylinder and the heat conducting medium in the heat dissipation pipe, which is beneficial to the continued conduction and dissipation of heat after the circulation flow, so as to maintain the temperature stability of the gyroscope.

[0021] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0022] 1. In the present invention, a first temperature control module is provided so that the cold medium circulates in the outer shell and dissipates heat uniformly through the combination of the storage cylinder, the heat exchange element and the capillary tube, thereby ensuring the stability of the temperature of the outer shell. That is, when the gyroscope body is working, hot gas is generated in the cavity formed between the outer shell and the base due to the heat radiation generated when the resonator is working, and the hot gas can exchange heat with the cold medium inside through the heat exchange element, so that the heat is quickly transferred to the cold medium, thereby reducing the gas temperature. At the same time, the cold medium after the heat exchange continues to circulate in the capillary tube, and the absorbed heat is evenly dispersed around the outer shell, thereby ensuring the uniformity of the temperature distribution of the outer shell, avoiding the occurrence of local hot spots in the outer shell, and at the same time, the cooled gas and the cold medium work together to circulate each other to form a thermal barrier, and the temperature of the outer shell and the cavity is kept consistent and within a constant range, so that a stable thermal environment is formed inside the cavity, effectively isolating the fluctuation of the external environment temperature, reducing its influence on the internal temperature, thereby improving the stability and accuracy of the gyroscope, and reducing its temperature fluctuation error;

[0023] 2. The present invention further provides heat dissipation foil and heat dissipation pipe, which can effectively dissipate the heat accumulated on the top, prevent excessive accumulation of heat on the top, ensure that the temperature inside the cavity remains relatively uniform, and utilize the coolant medium in the capillary tube to dissipate part of the heat when passing through the heat dissipation foil, which can prevent local overheating on the top, thereby better adjusting the temperature of the outer shell to make it consistent and uniform;

[0024] 3. The present invention realizes precise thermal management of the resonator by setting a second temperature control module, and effectively controls the temperature fluctuation of the resonator through a multi-level heat conduction and heat dissipation mechanism. Specifically, the heat conducting sheet is in direct contact with the resonator, which is conducive to directly conducting the heat of the resonator to the phase change heat absorbing material in the heat receiving body through the heat conducting column, so as to fully absorb the heat conducted by the phase change heat absorbing material during the phase change process of the phase change heat absorbing material. At the same time, after the heat is absorbed, the heat dissipation component also located in the heat receiving body can quickly dissipate the absorbed heat to the cavity through the circulation system formed by the liquid storage tube, the heat dissipation tube and the circulation pipeline, thereby realizing continuous heat absorption and cooling of the resonator, avoiding heat accumulation during operation, resulting in a sharp rise in its temperature, breaking the temperature balance in the cavity, and causing temperature fluctuations in the gyroscope body, thereby improving the overall performance and reliability of the gyroscope;

[0025] 4. The present invention further provides a plurality of heat dissipation teeth on the outside of the heat dissipation tube, and forms a flow channel in the shape of a sine function curve between any two adjacent heat dissipation teeth, which can effectively disturb the fluid and enhance the heat transfer efficiency, so as to complicate the air flow path and enhance the convection heat dissipation effect. By cleverly providing an elastic airbag on the outside of the liquid storage tube and filling it with heat-expanding gas, the thermal expansion characteristics of the gas can be utilized to automatically expand when the temperature rises, so that the flexible metal sheet and the conical thorn piece on the outside of the elastic airbag can penetrate into the phase change heat absorption material to increase the heating area, which is conducive to quickly conducting heat to the liquid storage tube and improving the heat dissipation efficiency. At the same time, through the dynamic adjustment mechanism of the elastic airbag expanding as the temperature rises, the system can efficiently process and dissipate heat, avoid temperature accumulation and overheating, and as the elastic airbag expands, it drives the flexible metal sheet and the conical thorn piece to squeeze the phase change heat absorption material in the heat receiving body to a certain extent, prompting it to produce physical disturbance during phase change, accelerating the phase change process of the phase change heat absorption material, and facilitating heat transfer inside the phase change heat absorption material;

[0026] 5. The present invention ingeniously connects multiple hollow tubes together through connecting foils to form an integrated heat conduction network, so that heat is evenly conducted in the entire structure. At the same time, the hollow tubes pass through micro-capillary channels therein, and the heat conduction medium flows rapidly therein based on the capillary action, so that the heat at the heat receiving end can be quickly conducted to the heat dissipation end, thereby greatly improving the heat conduction speed and heat conduction efficiency, and ensuring the stability and uniformity of heat conduction;

[0027] In summary, the present invention realizes the joint and precise control of the temperature of the outer shell and the resonator by suppressing the relevant structural settings of the components, effectively reduces the influence of temperature fluctuations on the accuracy of the gyroscope, and provides a dual temperature control mechanism for the gyroscope body, ensuring the stability and reliability of the gyroscope in different working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the upper outer shell structure of the present invention, which is intended to show the specific structure of the capillary tube, the heat dissipation tube and the heat dissipation foil;

[0031] Figure 3 This is a schematic diagram of the top view of the structure of the present invention, which is intended to show the internal structure distribution state of the outer shell;

[0032] Figure 4 For the present invention Figure 1 The schematic diagram of the local enlarged structure of the capillary in the figure is intended to show the layout of the capillary, the thermal conductive film and the outer shell;

[0033] Figure 5 For the present invention Figure 1 The schematic diagram of the local enlarged structure at A in the figure is intended to show the specific structure of the heat dissipation component;

[0034] Figure 6 for Figure 5 Schematic diagram of the expansion state of the elastic airbag in the heat dissipation component;

[0035] Figure 7 It is a schematic diagram of the three-dimensional structure of the heat-conducting column of the present invention;

[0036] Figure 8 It is a schematic diagram of the internal structure of the heat conductor of the present invention from a top view.

[0037] Marks and corresponding parts names in the attached drawings:

[0038] 1. Gyro body; 10. Base; 100. Cavity; 101. Axial fan; 11. Outer shell; 110. Thermal conductive film; 12. Resonator; 13. Base; 14. Heat dissipation foil; 200. Storage cylinder; 201. Heat exchange element; 202. Capillary; 2020. Heat dissipation pipe; 203. Heat exchange pipe; 210. Heat receiving body; 211. Thermal conductive sheet; 212. Thermal conductive column; 2120. Hollow tube; 2121. Connecting foil; 213. Heat dissipation component; 2130. Liquid storage tube; 21300. Elastic airbag; 21301. Conical thorn piece; 2131. Heat dissipation pipe; 21310. Heat dissipation tooth; 2132. Circulation pipe. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation modes and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual development and use stage.

[0040] Embodiment 1;

[0041] Please refer to the attached Figures 1 to 8 The present embodiment provides a gyroscope temperature fluctuation error suppression system, comprising a gyroscope body 1, wherein the gyroscope body 1 comprises a base 10 and an outer shell 11 which cooperate with each other and form a cavity, a base 13 with a resonator 12 is provided on the upper part of the base 10 and inside the outer shell 11, and a suppression component is provided on the gyroscope body 1, wherein the suppression component comprises a temperature correction mechanism;

[0042] The temperature correction mechanism includes a first temperature control module and a second temperature control module, wherein the first temperature control module is used to control the temperature of the outer shell 11, and the second temperature control module is used to control the temperature of the resonator 12;

[0043] like Figure 1 As shown, the first temperature control module includes a storage cylinder 200, a heat exchanger 201 and a capillary 202 which are interconnected. The storage cylinder 200 stores a refrigerant and is connected to the heat exchanger 201. A circulating pump is also provided inside the storage cylinder 200. The heat exchanger 201 is installed in the cavity 100 formed by the outer shell 11 and the base 10, and is distributed around the resonator 12 in a circular array. The capillary 202 is opened inside the outer shell 11. The circulating pump is used to pump the refrigerant into the heat exchanger 201 to exchange heat with the heat in the cavity 100 formed by the outer shell 11 and the base 10, and as the refrigerant circulates in the capillary 202 in the outer shell 11, the heat is evenly dispersed on the outer shell 11.

[0044] It should be understood that in the above embodiment, the suppression component includes a first temperature control module and a second temperature control module, and through their mutual cooperation, the combined and precise control of the temperature of the outer shell 11 and the resonator 12 is achieved, which effectively reduces the influence of temperature fluctuations on the accuracy of the gyroscope, and provides a dual temperature control mechanism for the gyroscope body 1, ensuring the stability and reliability of the gyroscope in different working environments. Specifically, the first temperature control module, through the combination of the storage cylinder 200, the heat exchanger 201 and the capillary 202, allows the refrigerant to circulate in the outer shell 11 and dissipate heat evenly, ensuring the stability of the temperature of the outer shell 11, that is, when the gyroscope body 1 is working, the cavity formed between the outer shell 11 and the base 10 will generate hot gas due to the heat radiation generated by the resonator 12 when it is working, so the hot gas can exchange heat with the refrigerant inside through the heat exchanger 201, so that the heat is quickly transferred to the refrigerant, thereby reducing the gas temperature. At the same time, the refrigerant after heat exchange is kept The gas continues to circulate in the capillary 202, and the absorbed heat is evenly dispersed around the outer shell 11, thereby ensuring the uniformity of the temperature distribution of the outer shell 11 and avoiding the occurrence of local hot spots in the outer shell 11. At the same time, the cooled gas and the cold medium work together to circulate with each other to form a thermal barrier, and the temperature of the outer shell 11 is kept consistent with that in the cavity and within a constant range, so that a stable thermal environment is formed inside the cavity, effectively isolating the fluctuation of the external ambient temperature and reducing its impact on the internal temperature, thereby improving the stability and accuracy of the gyroscope and reducing its temperature fluctuation error.

[0045] Based on the above embodiment, in order to further illustrate the heat exchange process of the heat exchange element 201, this embodiment specifically illustrates the heat exchange element 201. Figure 1 A heat exchange cavity is provided inside the heat exchange element 201, and a spiral heat exchange tube 203 is provided inside the heat exchange cavity. The heat exchange tube 203 has an air inlet end and an air outlet end, and the air inlet end is located at the upper part of the heat exchange cavity, and extends into the cavity formed by the outer shell 11 and the base 10 after passing through the heat exchange cavity. A micro-induced draft fan is also installed at the port position of the air inlet end. The air outlet end of the heat exchange tube 203 is located at the lower part of the air inlet end, and also passes through the heat exchange cavity and extends into the cavity formed by the outer shell 11 and the base 10. A micro-exhaust fan is provided at the port position of the air outlet end (the micro-induced draft fan and the micro-exhaust fan are not shown in the figure). In specific implementation, the micro-induced draft fan can guide the hot air in the cavity to the heat exchange tube 203 in the heat exchange cavity, and the spiral shape of the heat exchange tube 203 can increase its contact surface area with the refrigerant medium in the heat exchange cavity, thereby promoting higher heat exchange efficiency, and the micro-exhaust fan can discharge the gas cooled by heat exchange into the cavity to form a cooling cycle, ensuring uniform distribution of temperature in the cavity, forming a stable thermal environment, and keeping the temperature inside the cavity within a constant range to avoid fluctuations.

[0046] It should be noted here that the cavity formed between the outer shell 11 and the base 10 of the gyroscope body 1 mentioned in the above embodiment is closed, that is, it is a closed space, and when heat is generated in the closed space, based on the effects of heat convection and thermal field, the heat will gradually rise and accumulate in the middle of the top of the cavity, that is, the top position of the outer shell 11. Therefore, in order to avoid local overheating caused by heat accumulation at this position, this embodiment is preferably provided with a heat dissipation foil 14 in the middle of the top of the outer shell 11. The heat dissipation foil 14 is attached to the middle of the top of the outer shell 11 and is adapted to the curvature of the outer shell 11. Fins are provided on the top of the heat dissipation foil 14, so that by arranging the heat dissipation foil 14 and the fins, the heat accumulated on the top can be effectively dissipated to prevent excessive accumulation of heat on the top, thereby ensuring that the temperature inside the cavity remains relatively uniform.

[0047] As a preference, please also refer to Figure 1 and Figure 2 There are multiple groups of capillaries 202, and the multiple groups of capillaries 202 are evenly distributed in the outer shell 11. One end of any group of capillaries 202 is connected to the heat exchange cavity, and the other end extends upward along the radial direction of the outer shell 11, and is bent after passing through the heat dissipation foil 14, and then extends downward along the radial direction of the outer shell 11 again and is connected to the storage cylinder 200.

[0048] In this embodiment, the refrigerant is circulated in the capillary 202 and refluxed into the storage tube 200 to realize the recycling of the refrigerant. The capillary 202 can ensure that the refrigerant flows evenly and comprehensively in the outer shell 11, so that the heat carried by the refrigerant is evenly distributed on the outer shell 11, thereby ensuring that the temperature distribution of the outer shell 11 is uniform. At the same time, when the refrigerant in the capillary 202 circulates in the entire outer shell 11, it can absorb the conducted heat and dissipate part of the heat when passing through the heat dissipation foil 14 to prevent local overheating at the top thereof, thereby better adjusting the temperature of the outer shell 11 to make it consistent and uniform.

[0049] Specific as Figure 2 and Figure 4As shown, as a preference, the tube body of the capillary tube 202 forms an S-shaped heat dissipation tube 2020 at the position passing through the heat dissipation foil 14, and the inner surface of the outer shell 11 is coated with a layer of heat-conducting film 110. Based on the above specific implementation, it is beneficial to increase the contact area between the heat dissipation tube 2020 and the heat dissipation foil 14, and extend the flow path of the refrigerant medium in the heat dissipation tube 2020, promote the heat carried by the refrigerant medium to be transferred to the heat dissipation foil 14 through the heat dissipation tube 2020, and effectively dissipate through the heat dissipation foil 14 and the fins to prevent overheating in a certain local area. That is to say, in the present application, the heat dissipation foil 14 is not just a simple heat dissipation component, it also plays a role in uniformly dissipating heat, and the heat-conducting film 110 is coated on the inner surface of the outer shell 11, which can help to evenly distribute heat, that is to say, whether the heat is transmitted through the capillary tube 202, the heat dissipation pipe 2020, or directly radiating from the cavity, can quickly conduct heat to prevent the formation of local hot spots and ensure that the temperature in the entire outer shell 11 is more uniform. For the thermal conductive film 110, it can be formed by coating a metal material or polymer material with a high thermal conductivity and a thermal expansion coefficient that matches the laser gyroscope outer shell 11 component on the inside of the outer shell 11. This embodiment does not specifically limit it here. In actual application, corresponding metal-based thermal conductive materials (such as copper, aluminum, etc.), polymer-based thermal conductive materials (such as silicone rubber containing thermal conductive fillers, epoxy resin, etc.) or other high-performance composite materials can be selected according to environmental needs.

[0050] Based on the above embodiments, please refer to Figure 1 and Figure 3 A cavity 100 is provided in the middle of the bottom of the base 10, the storage cylinder 200 is located in the cavity 100, and heat dissipation fins (not shown in the figure) are provided on the outside circumference thereof, and ventilation ducts connected to the outside of the base 10 are provided at both ends of the cavity 100, and an axial flow fan 101 is installed in one of the ventilation ducts. It should be understood that since the storage cylinder 200 is located in the cavity 100, in order to facilitate the timely dissipation of the heat carried by the refrigerant medium that flows back into the storage cylinder 200, the refrigerant medium can be quickly cooled so that it can continue to circulate for heat exchange. At this time, the axial flow fan 101 can be started to form air convection in the cavity 100, thereby enhancing the air flow in the cavity 100, so that the cold air can enter the cavity 100 faster and the hot air can be discharged faster. At the same time, heat dissipation fins are axially arranged on the outside of the storage cylinder 200, which is beneficial for the air flow to quickly take away the heat carried by the refrigerant medium in the storage cylinder 200, so as to achieve rapid cooling of the refrigerant medium that flows back into the dust removal cylinder. Preferably, a plurality of axial flow fans 101 can be provided and evenly distributed.

[0051] It should be further explained that, in the laser gyro, the resonator 12 is the core component, which is mainly responsible for generating and maintaining the resonance of the laser. Therefore, its working principle involves high-frequency oscillation and laser amplification, which will generate significant heat. In order to further suppress the temperature fluctuation of the resonator 12, the specific structure of the second temperature control module is described here. Please refer to Figure 1 and Figure 5 , which includes a heat receiving body 210 filled with a phase change heat absorbing material, the heat receiving body 210 is located in a concave groove opened at the bottom of the base 13, a heat conducting sheet 211 is arranged at the top of the base 13 and the contact position with the resonator 12, and the bottom of the heat conducting sheet 211 and the heat receiving body 210 are connected by a plurality of heat conducting columns 212 inserted in the base 13, the upper end of the heat conducting column 212 and the heat conducting sheet 211 contact the heat receiving end, and the bottom end thereof extends into the heat receiving body 210 as the heat dissipation end, and the heat conducting column 212 is connected to the heat conducting sheet 211. A plurality of heat dissipation components 213 are also provided inside the heat receiving body 210, and the heat dissipation components 213 include a liquid storage tube 2130, a heat dissipation tube 2131 and a circulation pipe 2132. The liquid storage tube 2130 is made of aluminum foil and is transversely arranged above the inside of the heat receiving body 210. A heat conductive medium is stored inside the liquid storage tube 2130. The heat dissipation tube 2131 is transversely arranged in the cavity 100, and the heat dissipation tube 2131 is connected to the liquid storage tube 2130 through the circulation pipe 2132.

[0052] Specifically, the second temperature control module realizes precise thermal management of the resonator 12, and effectively controls the temperature fluctuation of the resonator 12 through a multi-level heat conduction and heat dissipation mechanism. Further, the heat of the resonator 12 can be directly conducted to the phase change endothermic material in the heat receiving body 210 through the heat conducting column 212 by the heat conducting sheet 211 in direct contact with the resonator 12, so as to fully absorb the heat conducted by the phase change endothermic material during the phase change process. At the same time, after absorbing the heat, the heat dissipation component 213 also located in the heat receiving body 210 can quickly dissipate the absorbed heat to the cavity 100 through the circulation system formed by the liquid storage tube 2130, the heat dissipation tube 2131 and the circulation pipe 2132, thereby realizing continuous heat absorption and cooling of the resonator 12, avoiding heat accumulation during operation and causing a sharp rise in its temperature, breaking the temperature balance in the cavity, and causing temperature fluctuations in the gyroscope body 1, thereby improving the overall performance and reliability of the gyroscope.

[0053] As a preference, Figure 5 and Figure 6As shown, the diameter of the heat dissipation pipe 2131 is larger than the diameter of the circulation pipe 2132, and a plurality of heat dissipation teeth 21310 are provided on the outside of the heat dissipation pipe 2131 around the periphery thereof, and a flow channel in the shape of a sine function curve is formed between any two adjacent heat dissipation teeth 21310. By making the diameter of the heat dissipation pipe 2131 larger than the diameter of the circulation pipe 2132, the sudden increase in volume is utilized to reduce the flow rate of the heat transfer medium, thereby increasing the time the heat transfer medium stays in the heat dissipation pipe 2020 and increasing the heat dissipation area of ​​the heat dissipation pipe 2020, so that the heat transfer medium has more time to exchange heat and improve its heat dissipation effect. By providing a plurality of heat dissipation teeth 21310 and forming a flow channel in the shape of a sine function curve between any two adjacent heat dissipation teeth 21310, the fluid can be effectively disturbed and the heat transfer efficiency can be enhanced, so that the air flow path is complicated and the convection heat dissipation effect is enhanced.

[0054] An elastic airbag 21300 is wrapped around the outside of the liquid storage tube 2130, and the interior of the elastic airbag 21300 is filled with thermal expansion gas. A plurality of flexible metal sheets (not shown in the figure) are also bonded to the outside of the elastic airbag 21300, and conical thorns 21301 are provided on the surface of the flexible metal sheets. Initially, the elastic airbag 21300 is in a contracted state.

[0055] It should be understood that the present application fills the elastic airbag 21300 with a thermal expansion gas, and the thermal expansion characteristics of the gas can be used to expand the airbag when the temperature rises ( Figure 6As shown, the flexible metal sheet and the conical thorn piece 21301 are pushed further and completely into the phase change heat absorbing material, thereby increasing the heating area, facilitating the rapid conduction of heat to the liquid storage tube 2130, and improving the heat dissipation efficiency. At the same time, the elastic airbag 21300 expands with the temperature rise, so that the system can efficiently handle and dissipate heat, avoiding temperature accumulation and overheating. As the elastic airbag 21300 expands, it can drive the flexible metal sheet and the conical thorn piece 21301 to squeeze the phase change heat absorbing material in the heated body 210 to a certain extent, causing it to produce physical disturbances during the phase change, so as to accelerate the phase change process of the phase change heat absorbing material and help the heat transfer inside the phase change heat absorbing material. It should be noted that the phase change material refers to a phase change that occurs from solid to liquid within a specific temperature range, while absorbing or releasing a large amount of latent heat. In the temperature fluctuation error suppression system of the laser gyroscope, selecting a suitable phase change material is crucial to improving the thermal management efficiency of the system. For this application, when selecting a phase change endothermic material, it is necessary to consider its matching with the operating temperature of the laser gyroscope, thermal stability, chemical stability, cycle life, cost-effectiveness and environmental impact. Therefore, as a preferred embodiment, the phase change endothermic material of the present application is preferably a crystalline hydrated salt, such as sodium sulfate (Na2SO4·10H2O), which is a solid powder at the initial stage.

[0056] As a preference, see 7 and Figure 8 Any of the heat-conducting columns 212 includes a hollow tube 2120 and a connecting foil 2121. The hollow tubes 2120 are provided in multiple and are distributed in a ring array. The connecting foil 2121 is located on the upper part of the tube bodies of the multiple hollow tubes 2120, and the tube walls of the multiple hollow tubes 2120 are connected in sequence to form a hollow ring structure. A microcapillary 202 is provided inside each of the hollow tubes 2120, and a heat conduction medium is injected into the microcapillary 202. The heat conduction medium flows in the microcapillary 202 to conduct the heat from the heat receiving end to the heat dissipation end and dissipate it into the heat receiving body 210. In this embodiment, multiple hollow tubes 2120 are connected together by connecting foils 2121 to form an integrated heat conduction network, and the thermal contact area is increased so that the heat is evenly conducted in the entire structure. At the same time, the hollow tubes 2120 pass through the micro-capillaries 202 therein, and the heat conduction medium flows rapidly therein based on the capillary action, so that the heat at the heated end can be quickly conducted to the heat dissipation end, thereby greatly improving the heat conduction speed and efficiency, and ensuring the stability and uniformity of heat conduction.

[0057] Embodiment 2;

[0058] This embodiment is based on the gyroscope temperature fluctuation error suppression system in embodiment 1, and proposes a gyroscope temperature fluctuation error suppression method, which includes the following steps:

[0059] S1. When the gyro body 1 generates heat and causes temperature fluctuations during operation, the circulation pump in the storage cylinder 200 in the first temperature control module is started to push the refrigerant to circulate between the storage cylinder 200, the heat exchange element 201 and the capillary tube 202. The refrigerant enters the heat exchange cavity of the heat exchange element 201. The micro-induced draft fan and the micro-exhaust fan work synchronously to introduce hot air into the heat exchange tube 203 and perform heat exchange with the refrigerant. The air after heat exchange is discharged into the cavity through the air outlet end of the heat exchange tube 203, thereby performing heat exchange with the air in the cavity formed by the outer shell 11 and the base 10.

[0060] S2, the refrigerant is continuously circulated in the capillary 202 to evenly distribute the heat to the surface of the outer shell 11, and the heat dissipation efficiency of the refrigerant is improved by the heat dissipation foil 14 and the S-shaped heat dissipation pipe 2020 to optimize the heat flow and ensure the uniform temperature of the outer shell 11;

[0061] S3. The heat conducting sheet 211 and the heat conducting column 212 of the second temperature control module conduct the heat from the resonator 12 to the heat receiving body 210. After the phase change material in the heat receiving body 210 absorbs the heat, it stores the heat through phase change. When the heat receiving body 210 stores heat, its excess heat is dissipated into the cavity 100 through the heat dissipation component 213 in the heat receiving body 210. At the same time, the axial flow fan 101 in one of the ventilation ducts works and blows air to promote the air flow in the cavity 100 of the base 10, so as to promote the cooling of the heat carried by the refrigerant medium in the storage tube 200 and the heat dissipation pipe 2131, so as to facilitate the continued conduction and dissipation of heat after the circulation, so as to maintain the temperature stability of the gyroscope.

[0062] Through the above steps, the temperature fluctuation occurring during the operation of the gyroscope body 1 is effectively suppressed, and the operating performance and reliability of the gyroscope are greatly improved.

[0063] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gyroscope temperature fluctuation error suppression system, comprising a gyroscope body (1), wherein the gyroscope body (1) comprises a base (10) and an outer shell (11) which cooperate with each other to form a cavity, and a base (13) with a resonator (12) is provided on the upper part of the base (10) and located inside the outer shell (11), characterized in that: Also included is a suppression component located on the gyro body (1), the suppression component including a temperature correction mechanism; The temperature correction mechanism comprises a first temperature control module and a second temperature control module, the first temperature control module is used to control the temperature of the outer shell (11), and the second temperature control module is used to control the temperature of the resonator (12); The first temperature control module comprises a storage cylinder (200), a heat exchange element (201) and a capillary tube (202) which are interconnected. A refrigerant is stored in the storage cylinder (200) and is in communication with the heat exchange element (201). A circulation pump is also provided inside the storage cylinder (200). The heat exchange element (201) is installed in a cavity (100) formed by the outer shell (11) and the base (10) and is distributed around the resonator (12) in a circular array. The capillary tube (202) is provided inside the outer shell (11). The refrigerant is pumped into the heat exchange element (201) by the circulation pump to exchange heat with the heat in the cavity (100) formed by the outer shell (11) and the base (10). As the refrigerant circulates in the capillary tube (202) inside the outer shell (11), the heat is evenly dispersed on the outer shell (11). A cavity (100) is provided in the middle of the bottom of the base (10), the storage cylinder (200) is located in the cavity (100), and heat dissipation fins are provided on the outside of the storage cylinder (200), and ventilation ducts connected to the outside of the base (10) are provided at both ends of the cavity (100), and an axial flow fan (101) is installed in one of the ventilation ducts; The second temperature control module comprises a heat receiving body (210) filled with a phase change heat absorbing material, the heat receiving body (210) being located in a concave groove provided at the bottom of the base (13), a heat conducting sheet (211) being arranged at a position where the top of the base (13) contacts the resonator (12), the bottom of the heat conducting sheet (211) and the heat receiving body (210) being connected via a plurality of heat conducting columns (212) inserted in the base (13), the upper end of the heat conducting column (212) being in contact with the heat conducting sheet (211) being a heat receiving end, and the lower end thereof extending into the heat receiving body (210) being a heat dissipation end, A plurality of heat dissipation components (213) are further provided inside the heat receiving body (210), the heat dissipation components (213) comprising a liquid storage pipe (2130), a heat dissipation pipe (2131) and a circulation pipe (2132); the liquid storage pipe (2130) is made of aluminum foil and is transversely arranged above the inside of the heat receiving body (210); a heat conducting medium is stored inside the liquid storage pipe (2130); the heat dissipation pipe (2131) is transversely arranged in the cavity (100); and the heat dissipation pipe (2131) and the liquid storage pipe (2130) are connected via the circulation pipe (2132).

2. The gyroscope temperature fluctuation error suppression system according to claim 1, characterized in that: A heat exchange cavity is provided inside the heat exchange element (201), and a spiral heat exchange tube (203) is provided inside the heat exchange cavity. The heat exchange tube (203) has an air inlet end and an air outlet end, and the air inlet end is located at the upper part of the heat exchange cavity, passes through the heat exchange cavity, and extends into the cavity formed by the outer shell (11) and the base (10). A micro induced draft fan is also installed at the port position of the air inlet end. The air outlet end of the heat exchange tube (203) is located at the lower part of the air inlet end, and also passes through the heat exchange cavity and extends into the cavity formed by the outer shell (11) and the base (10). A micro exhaust fan is provided at the port position of the air outlet end.

3. The gyroscope temperature fluctuation error suppression system according to claim 1, characterized in that: A heat dissipation foil (14) is also provided in the middle of the top of the outer shell (11); the heat dissipation foil (14) is attached to the middle of the top of the outer shell (11) and is adapted to the curvature of the outer shell (11); and fins are provided on the top of the heat dissipation foil (14).

4. The gyroscope temperature fluctuation error suppression system according to claim 3, characterized in that: The capillary tubes (202) are provided in a plurality of groups, and the plurality of groups of capillary tubes (202) are evenly distributed in the outer shell (11); one end of any group of the capillary tubes (202) is connected to the heat exchange cavity, and the other end extends upward along the radial direction of the outer shell (11), is bent after passing through the heat dissipation foil (14), and extends downward along the radial direction of the outer shell (11) again and is connected to the storage cylinder (200).

5. The gyroscope temperature fluctuation error suppression system according to claim 4, characterized in that: The tube body of the capillary tube (202) forms an S-shaped heat dissipation tube (220) at the portion where it passes through the heat dissipation foil (14), and the inner surface of the outer shell (11) is coated with a layer of heat-conducting film (110).

6. The gyroscope temperature fluctuation error suppression system according to claim 1, characterized in that: The diameter of the heat dissipation pipe (2131) is greater than the diameter of the circulation pipe (2132), and a plurality of heat dissipation teeth (21310) are provided on the outside of the heat dissipation pipe (2131) around the periphery thereof, and a flow channel in the shape of a sine function curve is formed between any two adjacent heat dissipation teeth (21310).

7. The gyroscope temperature fluctuation error suppression system according to claim 1, characterized in that: An elastic airbag (21300) is wrapped around the outside of the liquid storage tube (2130), the interior of the elastic airbag (21300) is filled with thermal expansion gas, and a plurality of flexible metal sheets are bonded to the outside of the elastic airbag (21300), and conical thorns (21301) are provided on the surface of the flexible metal sheets. Initially, the elastic airbag (21300) is in a contracted state.

8. A method for suppressing gyroscope temperature fluctuation errors, according to a system for suppressing gyroscope temperature fluctuation errors according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: S1. When the gyroscope body (1) generates heat and causes temperature fluctuations during operation, the circulation pump in the storage cylinder (200) in the first temperature control module is started to push the refrigerant to circulate between the storage cylinder (200), the heat exchange element (201) and the capillary tube (202). The refrigerant enters the heat exchange cavity of the heat exchange element (201). The micro-induced draft fan and the micro-exhaust fan work synchronously to introduce hot air into the heat exchange tube (203) and perform heat exchange with the refrigerant. The air after heat exchange is discharged into the cavity through the air outlet end of the heat exchange tube (203), thereby performing heat exchange with the air in the cavity formed by the outer shell (11) and the base (10). S2, the refrigerant is continuously circulated in the capillary tube (202) to evenly disperse the heat to the surface of the outer shell (11), and the heat dissipation efficiency of the refrigerant is improved by the heat dissipation foil (14) and the S-shaped heat dissipation pipe (2020), so as to optimize the heat flow and ensure that the temperature of the outer shell (11) is uniform; S3, the heat conducting sheet (211) and the heat conducting column (212) of the second temperature control module conduct heat from the resonator (12) to the heat receiving body (210), and after the phase change material in the heat receiving body (210) absorbs the heat, the heat is stored through phase change. When the heat receiving body (210) stores heat, its excess heat is dissipated into the cavity (100) through the heat dissipation component (213) in the heat receiving body (210). At the same time, the axial flow fan (101) in one of the ventilation ducts works and blows air to promote the flow of air in the cavity (100) of the base (10), so as to promote the rapid cooling of the heat carried by the refrigerant medium in the storage tube (200) and the heat dissipation pipe (2131), so as to facilitate the continued conduction and dissipation of heat after the circulation, so as to maintain the temperature stability of the gyroscope.

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