CN211481845U - Electromagnetic shielding device of laser tracking measuring equipment - Google Patents
Electromagnetic shielding device of laser tracking measuring equipment Download PDFInfo
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- CN211481845U CN211481845U CN202020177600.6U CN202020177600U CN211481845U CN 211481845 U CN211481845 U CN 211481845U CN 202020177600 U CN202020177600 U CN 202020177600U CN 211481845 U CN211481845 U CN 211481845U
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Abstract
The utility model discloses an electromagnetic shielding device of laser tracking measuring equipment, which comprises a shielding body and a lens waveguide tube; the shielding body is a metal shell, the front end surface and the rear end surface of the shielding body are respectively provided with an electromagnetic radiation leakage interface, and one electromagnetic radiation leakage interface is blocked by adopting a flexible shielding material; the other electromagnetic radiation leakage interface is detachably plugged through a shielding rear cover; the lens waveguide tube is made of metal material, one end of the lens waveguide tube is connected with a lens of the laser tracking measuring equipment and moves along with the lens; the outer wall of the lens waveguide tube is fixedly connected with the flexible shielding material; and water leakage holes are circumferentially arranged at the lower part of the lens waveguide tube and are led out of the shielding body through the drainage tube. The integrated current multiple electromagnetic compatibility technique of this application has the commonality, can regard as the electromagnetic shield design reference that measuring equipment reply the higher condition of electromagnetic compatibility requirement, and simultaneously, this structure plays fine wind-proof, hides rain, protection such as dustproof, dampproofing to measuring equipment.
Description
Technical Field
The utility model belongs to the technical field of the electromagnetic shield technique and specifically relates to an electromagnetic shield device of laser tracking measuring equipment is related to.
Background
In the fields of aerospace, radio astronomy and the like, high-precision real-time tracking measurement of the position of a moving object is often required to be carried out by using laser measuring equipment. Meanwhile, conventional laser tracking measurement equipment generally comprises multi-module electronic equipment such as photoelectric distance measurement, electronic angle measurement, electronic compensation and microcomputer processing, and the like, and the equipment can generate strong broadband electromagnetic radiation in the real-time tracking and distance measurement process, so that receiving equipment with high sensitivity, such as a receiver of a radio telescope, is influenced, electromagnetic shielding protection needs to be performed on the used laser tracking measurement equipment, and the main purpose is to reduce the electromagnetic radiation of the laser measurement equipment and reduce the interference on the receiving equipment.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electromagnetic shield device of measuring equipment is trailed to laser to solve the technical problem who exists among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an electromagnetic shielding device of laser tracking measuring equipment, which comprises a shielding body and a lens waveguide tube; wherein the content of the first and second substances,
the shielding body is a metal shell, the laser tracking measurement equipment is placed in the shielding body, the front end face and the rear end face of the shielding body are respectively provided with an electromagnetic radiation leakage interface, and one electromagnetic radiation leakage interface is blocked by adopting a flexible shielding material and is used for being flexibly connected with the lens waveguide tube; the other electromagnetic radiation leakage interface is detachably plugged through a shielding rear cover and is used for installation, maintenance and repair of the measuring equipment; a signal filter and a power filter are arranged in the shield;
the lens waveguide tube is made of metal materials, and one end of the lens waveguide tube is connected with a lens of the laser tracking measuring equipment and moves along with the lens; the other end of the flexible shielding material penetrates through the flexible shielding material to extend out of the shielding body, and the outer wall of the lens waveguide tube is fixedly connected with the flexible shielding material; and water leakage holes are circumferentially arranged at the lower part of the lens waveguide tube and are led out of the shielding body through the drainage tube.
As a further technical scheme, a water guide groove extending to the outside of the tube body is circumferentially arranged at the lower part of the lens waveguide tube, and the water leakage hole is formed in the water guide groove.
As a further technical scheme, after a conductive gasket is arranged between the flexible shielding material and the shielding body, a metal pressing plate is arranged on the outer side of the flexible shielding material, and then the metal pressing plate, the flexible shielding material, the conductive gasket and the shielding body are fixedly connected in sequence through screws.
As a further technical solution, the lens waveguide is connected with a lens of the laser tracking measurement device through a lens waveguide reed.
As a further technical scheme, after the conductive gasket is arranged between the outer wall of the lens waveguide tube and the flexible shielding material, the metal pressing ring is arranged on the outer side of the flexible shielding material, and then the metal pressing ring, the flexible shielding material, the conductive gasket and the lens waveguide tube are fixedly connected in sequence through screws.
As a further technical solution, after a conductive gasket is arranged between the shielding rear cover and the electromagnetic radiation leakage interface, the shielding rear cover, the conductive gasket and the electromagnetic radiation leakage interface are sequentially and fixedly connected by screws.
Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:
the electromagnetic compatibility design method is integrated with various existing electromagnetic compatibility technologies, has universality, and can be used as a reference for electromagnetic compatibility design or transformation of optical measurement equipment with high electromagnetic shielding requirements and real-time tracking. The structure does not modify the internal design of the measuring equipment, and the realization of the measuring performance of the equipment cannot be influenced. Simultaneously, this structure plays fine protection actions such as keep out the wind, hide rain, prevent dust, dampproofing to measuring equipment, has solved measuring equipment's open-air protection problem to a certain extent. In addition, the structure has simple mechanical design, manufacture, processing and the like and lower cost. The structure can ensure the normal use of the laser real-time tracking measuring equipment, has the characteristics of good electromagnetic shielding, environmental protection and the like, is suitable for the situation that the measuring equipment has higher requirements on electromagnetic compatibility, works in the field or severe environment, and can be applied to the fields of aerospace, radio astronomy and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electromagnetic shielding apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a lens waveguide provided in an embodiment of the present invention;
fig. 3 is a schematic view of a connection structure between a flexible shielding material and a shielding body according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a connection between a lens waveguide and a lens according to an embodiment of the present invention;
fig. 5 is a schematic view of a connection structure between a lens waveguide and a flexible shielding material according to an embodiment of the present invention;
fig. 6 is a schematic view of a connection structure between the shielding rear cover and the electromagnetic radiation leakage interface according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply 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 limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
Referring to fig. 1, the present embodiment provides an electromagnetic shielding device for a laser tracking measurement apparatus, where the electromagnetic shielding device includes a shielding body 1-1 and a lens waveguide 1-3; wherein the content of the first and second substances,
the shielding body 1-1 is a metal shell, the laser tracking measuring equipment 1-7 is placed in the shielding body 1-1, and a fixing screw hole 1-9 for fixing the laser tracking measuring equipment 1-7 is formed in the shielding body 1-1; an electromagnetic radiation leakage interface is respectively arranged on the front end face and the rear end face of the shielding body 1-1, wherein one electromagnetic radiation leakage interface 1-2 is blocked by adopting a flexible shielding material 1-5 and is used for being flexibly connected with the lens waveguide tube 1-3; the other electromagnetic radiation leakage interface 1-13 is detachably plugged through a shielding rear cover 1-10 and is used for installation, maintenance and repair of measuring equipment; and signal filters 1-11 and power filters 1-12 are arranged in the shield body and are respectively used for enabling signal lines to pass through the wall, realizing signal transmission and connecting power supply cables to supply power for the measuring equipment.
The lens waveguide tube 1-3 is made of metal materials, and one end of the lens waveguide tube is connected with the lens 1-6 of the laser tracking and measuring equipment and moves along with the lens; the other end of the flexible shielding material penetrates through the flexible shielding material 1-5 to extend out of the shielding body, the outer wall of the lens waveguide tube is fixedly connected with the flexible shielding material, and an electromagnetic radiation leakage interface 1-4 is formed at the connecting position of the flexible shielding material and the lens waveguide tube; and water leakage holes are circumferentially arranged at the lower part of the lens waveguide tube 1-3 and are led out of the shielding body through the drainage tube 1-8.
The flexible shielding materials 1-5 in the present application can be selected from shielding cloth, and preferably, outdoor protective paint can be sprayed on the outer side of the flexible shielding materials 1-5 to improve the service life thereof.
In the embodiment, as a further technical solution, as shown in fig. 2, the lens waveguide includes a tube body 2-1, and a water guiding groove 2-2 extending to the outside of the tube body is circumferentially arranged at the lower part of the tube body 2-1, so that liquid (e.g., water) flows out through the water discharging hole, and the liquid is prevented from flowing to the lens part. The water leakage holes 2-3 are formed in the water guide grooves 2-2, so that rainwater is prevented from passing through the waveguide tube to measure equipment. The lens connecting end 2-4 of the lens waveguide tube is connected with the lens by adopting an elastic reed.
In this embodiment, as a further technical solution, after the conductive pad 3-2 is disposed between the flexible shielding material 3-3 and the shielding body 3-1, the metal pressing plate 3-4 is disposed on the outer side of the flexible shielding material 3-3, and then the metal pressing plate, the flexible shielding material, the conductive pad, and the shielding body are sequentially and fixedly connected by the screws 3-5, as shown in fig. 3. The flexible shielding material 3-3 may be multi-layered as required for shielding effectiveness.
In the embodiment, as a further technical solution, as shown in fig. 4, the lens waveguide 4-1 is connected to a lens 4-3 of the laser tracking measurement device through a lens waveguide reed 4-2; so set up, can easy to assemble and dismantle.
Referring to fig. 5, in this embodiment, as a further technical solution, after a conductive gasket 5-2 is disposed between an outer wall of the lens waveguide 5-1 and the flexible shielding 5-3, a metal press ring 5-4 is disposed on an outer side of the flexible shielding material 5-3, and then the metal press ring, the flexible shielding material, the conductive gasket, and the lens waveguide are sequentially and fixedly connected by screws 5-5, so that good electrical contact of the connecting portion is ensured, and electromagnetic radiation leakage is reduced. The flexible shielding material 5-3 may be multi-layered as required for shielding effectiveness.
As shown in fig. 6, in this embodiment, as a further technical solution, after a conductive gasket 6-2 is disposed between the shielding rear cover 6-3 and the electromagnetic radiation leakage interface 6-1, the shielding rear cover, the conductive gasket, and the electromagnetic radiation leakage interface are sequentially and fixedly connected by a screw 6-4. The installation and maintenance of the measuring equipment can be facilitated by arranging the shielding rear cover 6-3.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. The electromagnetic shielding device of the laser tracking measuring equipment is characterized by comprising a shielding body and a lens waveguide tube; wherein the content of the first and second substances,
the shielding body is a metal shell, the laser tracking measurement equipment is placed in the shielding body, the front end face and the rear end face of the shielding body are respectively provided with an electromagnetic radiation leakage interface, and one electromagnetic radiation leakage interface is blocked by adopting a flexible shielding material and is used for being flexibly connected with the lens waveguide tube; the other electromagnetic radiation leakage interface is detachably plugged through a shielding rear cover and is used for installation, maintenance and repair of the measuring equipment; a signal filter and a power filter are arranged in the shield;
the lens waveguide tube is made of metal materials, and one end of the lens waveguide tube is connected with a lens of the laser tracking measuring equipment and moves along with the lens; the other end of the flexible shielding material penetrates through the flexible shielding material to extend out of the shielding body, and the outer wall of the lens waveguide tube is fixedly connected with the flexible shielding material; and water leakage holes are circumferentially arranged at the lower part of the lens waveguide tube and are led out of the shielding body through the drainage tube.
2. The electromagnetic shield of the laser tracking measuring device according to claim 1, wherein a water guide groove extending to the outside of the pipe body is circumferentially provided at a lower portion of the lens waveguide, and the water leakage hole is provided on the water guide groove.
3. The electromagnetic shielding device of the laser tracking measuring apparatus according to claim 1, wherein after the conductive pad is disposed between the flexible shielding material and the shielding body, a metal pressing plate is disposed on an outer side of the flexible shielding material, and then the metal pressing plate, the flexible shielding material, the conductive pad and the shielding body are sequentially and fixedly connected by screws.
4. The electromagnetic shielding device of claim 1, wherein the lens waveguide is connected to the lens of the laser tracking measuring device through a lens waveguide reed.
5. The electromagnetic shielding device of the laser tracking measuring apparatus according to claim 1, wherein after the conductive gasket is disposed between the outer wall of the lens waveguide and the flexible shielding material, a metal press ring is disposed on the outer side of the flexible shielding material, and then the metal press ring, the flexible shielding material, the conductive gasket, and the lens waveguide are sequentially and fixedly connected by screws.
6. The electromagnetic shielding device of claim 1, wherein after a conductive gasket is disposed between the shielding rear cover and the electromagnetic radiation leakage interface, the shielding rear cover, the conductive gasket, and the electromagnetic radiation leakage interface are sequentially and fixedly connected by screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020177600.6U CN211481845U (en) | 2020-02-17 | 2020-02-17 | Electromagnetic shielding device of laser tracking measuring equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020177600.6U CN211481845U (en) | 2020-02-17 | 2020-02-17 | Electromagnetic shielding device of laser tracking measuring equipment |
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| CN211481845U true CN211481845U (en) | 2020-09-11 |
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| CN202020177600.6U Active CN211481845U (en) | 2020-02-17 | 2020-02-17 | Electromagnetic shielding device of laser tracking measuring equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114966615A (en) * | 2022-07-13 | 2022-08-30 | 中国科学院长春光学精密机械与物理研究所 | Double-cabin photoelectric detection system capable of detecting weak and small targets in strong electromagnetic pulse environment |
| CN116828834A (en) * | 2023-08-23 | 2023-09-29 | 苏州英特模科技股份有限公司 | Steerable EMC (electro magnetic compatibility) hub-rotating trolley wheel pose measuring equipment |
-
2020
- 2020-02-17 CN CN202020177600.6U patent/CN211481845U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114966615A (en) * | 2022-07-13 | 2022-08-30 | 中国科学院长春光学精密机械与物理研究所 | Double-cabin photoelectric detection system capable of detecting weak and small targets in strong electromagnetic pulse environment |
| CN116828834A (en) * | 2023-08-23 | 2023-09-29 | 苏州英特模科技股份有限公司 | Steerable EMC (electro magnetic compatibility) hub-rotating trolley wheel pose measuring equipment |
| CN116828834B (en) * | 2023-08-23 | 2023-11-07 | 苏州英特模科技股份有限公司 | Steerable EMC (electro magnetic compatibility) hub-rotating trolley wheel pose measuring equipment |
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