CN216696488U - Automatic replacing system for whole vehicle anechoic chamber test antenna - Google Patents
Automatic replacing system for whole vehicle anechoic chamber test antenna Download PDFInfo
- Publication number
- CN216696488U CN216696488U CN202122761938.3U CN202122761938U CN216696488U CN 216696488 U CN216696488 U CN 216696488U CN 202122761938 U CN202122761938 U CN 202122761938U CN 216696488 U CN216696488 U CN 216696488U
- Authority
- CN
- China
- Prior art keywords
- antenna
- platform
- lifting device
- lifting
- anechoic chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model provides an automatic replacing system for an antenna of a whole vehicle anechoic chamber test, which comprises an antenna storage chamber arranged right below an anechoic chamber; the top of the antenna storage chamber is communicated with the bottom of the darkroom through a through hole, a shielding plate is movably inserted into the through hole, the shielding plate is installed at the top of a sliding platform, the sliding platform is installed in the antenna storage chamber, a first lifting device is arranged at the bottom of the sliding platform, the sliding platform is connected with the first lifting device in a sliding mode, a horizontal sliding device is arranged on a movable section of the first lifting device, the horizontal sliding device is of a telescopic structure and drives the sliding platform to horizontally slide relative to the first lifting device; and a lifting platform is further arranged in the antenna storage chamber, and a second lifting device is arranged at the bottom of the lifting platform. The automatic antenna replacing system completes corresponding test antenna switching work in radiation emission and radiation immunity test environments in the test process through automatic operation control on the premise of meeting the requirement of the electromagnetic shielding anechoic chamber environment of the whole vehicle.
Description
Technical Field
The utility model relates to the field of electromagnetic compatibility, in particular to a test antenna used in a whole vehicle half-wave darkroom, and specifically relates to an automatic replacing system for a whole vehicle anechoic chamber test antenna.
Background
The whole vehicle half-wave darkroom is one of important places for carrying out electromagnetic compatibility certification and detection on various whole vehicles and electric and electronic parts thereof. The shielding chamber is a metal closed body, a large number of resonant frequencies exist, once the radiation frequency and the excitation mode of the tested equipment cause the shielding chamber to generate resonance, the measurement error can reach 20-30 dB, so wave-absorbing materials are required to be installed on the peripheral walls and the top of the shielding chamber, reflection is greatly weakened, and only direct waves and ground reflected waves exist during the propagation of electric waves. In order to ensure the test accuracy, the half-wave darkroom selects proper wave-absorbing materials, field generation systems and shielding shell shapes, so that irrelevant energy is reduced to be below a limit value in a test area.
In an electromagnetic compatibility test used in a whole vehicle anechoic chamber, a radiation emittance test requires that background noise of the anechoic chamber is less than 6dB, and non-test related articles and equipment can influence the background noise and a test result no matter the background noise is swept or the whole vehicle test process is carried out, so that the non-test related articles and equipment are not allowed to be placed in the anechoic chamber during the radiation emittance test, namely the articles and the equipment including an antenna of the radiation immunity test need to be withdrawn from the anechoic chamber; when radiation immunity tests are carried out in the anechoic chamber environment, all electronic products and components exposed in the environment are likely to have risks of performance reduction and damage, electronic products and equipment irrelevant to the tests cannot be placed in the anechoic chamber generally, and the radiation emission system is usually withdrawn from the anechoic chamber.
At present, logarithmic period antennas for radiation emission and radiation immunity tests of a whole vehicle anechoic chamber are huge in size, a whole vehicle anechoic chamber door needs to be opened during replacement of a test project, the replacement is promoted by cooperation of a plurality of testers, storage and replacement are completed outside the anechoic chamber, an antenna to be replaced is pushed to the position of the antenna in the anechoic chamber, and finally the whole vehicle anechoic chamber door is closed. The operation is controlled by the experience of testing personnel, the process is time-consuming and labor-consuming, and the risk of collision damage of the antenna and the wave absorbing material of the anechoic chamber exists.
Therefore, the utility model is necessary to provide a system which meets the environmental requirement of the electromagnetic shielding anechoic chamber of the whole vehicle and does not influence, and can realize automatic and quick replacement of the test antenna.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide an automatic replacing system for an entire car anechoic chamber test antenna, which completes the corresponding test antenna switching work in the radiation emission and radiation immunity test environment in the test process through automatic operation control on the premise of meeting the requirement of the entire car electromagnetic shielding anechoic chamber environment, so as to solve the problems that the antenna replacement by means of manual operation and control of a tester is time-consuming and labor-consuming, and the antenna or anechoic chamber wave-absorbing material is easily damaged by human error, which results in huge property loss.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
an automatic replacing system for an antenna of a whole vehicle anechoic chamber test comprises an antenna storage chamber arranged right below an anechoic chamber; the top of the antenna storage chamber is communicated with the bottom of the darkroom through a through hole, a shielding plate is movably inserted at the through hole, the shielding plate is arranged at the top of the sliding platform, the sliding platform is arranged in the antenna storage chamber, the bottom of the sliding platform is provided with a first lifting device, the sliding platform is connected with the first lifting device in a sliding way, the lifting direction of the first lifting device is the up-down direction, the first lifting device drives the shading plate to lift so that the shading plate is inserted into the through hole or positioned right below the bottom of the darkroom, a horizontal sliding device is arranged on the movable section of the first lifting device, the horizontal sliding device is of a telescopic structure, the fixed section of the horizontal sliding device is arranged on the first lifting device, and the telescopic end of the horizontal sliding device is connected with the bottom of the sliding platform and drives the sliding platform to horizontally slide relative to the first lifting device;
still be provided with lift platform in the antenna storage chamber, lift platform's top is used for placing the antenna, and it is just right the opening sets up, lift platform's bottom is provided with second elevating gear, second elevating gear's lift direction is upper and lower direction, and it drives lift platform grafting opening perhaps is located the opening under, lift platform and sunshade are grafting opening not simultaneously.
Furthermore, the shielding plate and the lifting platform are made of metal materials, the tops of the shielding plate and the lifting platform and the side wall of the lifting platform, which is opposite to the through hole when the through hole is inserted, are all wrapped by the wave absorbing layer, and the wave absorbing layer is made of wave absorbing materials.
Further, the first lifting device, the horizontal sliding device and the second lifting device are all pneumatic telescopic cylinders.
Furthermore, four first lifting devices are arranged, and the four first lifting devices are arranged on the outer sides of the second lifting device and the lifting platform in a surrounding manner; the two horizontal sliding devices are respectively arranged at two opposite sides of the second lifting device, and the fixed section of each horizontal sliding device is fixedly connected to the movable section of the first lifting device at the side where the fixed section is located.
Furthermore, elastic air bags are arranged on the side walls of the four sides of the shielding plate and the lifting platform, the elastic air bags are connected with an air source device through air inflation tubes, and the air inflation tubes and the air source device are arranged in the antenna storage chamber.
Furthermore, wave absorbing layers are coated on the inner side face and the outer side face of the elastic air bag.
Furthermore, the elastic air bag is provided with a plurality of clamping bulges which are arranged at intervals, the clamping bulges are communicated with the elastic air bag, and do not bulge out of the outer wall of the elastic air bag when the elastic air bag is in an uninflated state and bulge out of the outer wall of the elastic air bag when the elastic air bag is in an inflated state; offer the slot that supplies the elastic airbag holding under the gas filled state on the four mouthfuls of walls of opening, a plurality of draw-in grooves have been seted up at the tank bottom interval of slot, and it is protruding that each draw-in groove matches a screens, works as when the elastic airbag is in the gas filled state, the protruding card of screens is gone into in its draw-in groove that corresponds.
Furthermore, each clamping protrusion is of an annular strip-shaped structure.
Further, a contact switch is arranged at the bottom of the groove with at least one clamping groove, the trigger part of the contact switch is positioned in the clamping groove, the contact switch is connected with a central control system through a cable, and the central control system is respectively connected with a first lifting device, a horizontal sliding device, a second lifting device and an air source device through cables.
Compared with the prior art, the utility model has the following beneficial effects:
1. the antenna can be automatically lifted out for use and stored, manual carrying is not needed, time and labor are saved, and the space of a darkroom is not occupied when the antenna is not used;
2. the opening between the antenna storage chamber and the darkroom is closed by the shielding plate made of wave-absorbing materials when the antenna is not used and is closed by the lifting platform made of wave-absorbing materials when the antenna is used, so that the arrangement of the antenna storage chamber and the equipment in the antenna storage chamber cannot cause electromagnetic compatibility influence on the environment of the darkroom, cannot become a fixed interference source in the darkroom, cannot influence the test result of the darkroom, and cannot influence the performance of the darkroom by the test performed in the darkroom.
Drawings
FIG. 1 is a schematic view of a shutter according to the present invention for sealing a port.
Fig. 2 is a partial view of fig. 1.
Fig. 3 is a schematic structural view of the lifting platform for sealing the through opening.
Fig. 4 is a partial view of fig. 3.
Fig. 5 is an enlarged view at a in fig. 4.
Description of the main elements
In the figure: the antenna comprises a darkroom 1, an antenna storage chamber 2, a shading plate 3, a sliding platform 4, a first lifting device 5, a horizontal sliding device 6, a lifting platform 7, a second lifting device 8, an elastic air bag 9, a clamping bulge 10, an inflation tube 11, an air source device 12, an opening 13, a slot 14, a clamping groove 15 and a contact switch 16.
The following detailed description will further illustrate the utility model in conjunction with the above-described figures.
Detailed Description
Referring to fig. 1 to 5, in a preferred embodiment of the present invention, an automatic antenna replacing system for a whole vehicle anechoic chamber test includes an antenna storage chamber 2 disposed right below an anechoic chamber 1; the top of the antenna storage chamber 2 is communicated with the bottom of the darkroom 1 through a through hole 13, a shielding plate 3 is movably inserted into the through hole 13, the shielding plate 3 is installed at the top of a sliding platform 4, the sliding platform 4 is installed in the antenna storage chamber 2, a first lifting device 5 is arranged at the bottom of the sliding platform 4, the sliding platform 4 is connected with the first lifting device 5 in a sliding mode, the lifting direction of the first lifting device 5 is the vertical direction, the first lifting device 5 drives the shielding plate 3 to lift so that the shielding plate 3 is inserted into the through hole 13 or is positioned right below the bottom of the darkroom 1, a horizontal sliding device 6 is arranged on the movable section of the first lifting device 5, the horizontal sliding device 6 is of a telescopic structure, the fixed section of the horizontal sliding device 6 is installed on the first lifting device 5, and the telescopic end of the horizontal sliding device 6 is connected with the bottom of the sliding platform 4, the sliding platform 4 is driven to horizontally slide relative to the first lifting device 5, and the shutter 3 can be located right below the through opening 13 and inserted with the sealed through opening 13 by matching with the lifting action of the first lifting device 5, or the shutter 3 is located below the through opening 13 and staggered with the through opening 13.
Still be provided with lift platform 7 in the antenna storage chamber 2, lift platform 7's top is used for placing the antenna, and it is just right opening 13 sets up, lift platform 7's bottom is provided with second elevating gear 8, second elevating gear 8's direction of lift is upper and lower direction, and it drives lift platform 7 grafting opening 13 or be located opening 13 under, lift platform 7 and sunshade 3 are grafting opening 13 not simultaneously. That is, the elevating platform 7 is elevated by the second elevating device 8, so that the antenna thereon is raised into the darkroom 1 or lowered into the antenna storage chamber 2 for storage.
That is, the present invention realizes the automatic replacement of the antenna through the above-mentioned arrangement, and is convenient to use, and specifically, when the antenna is not needed to be used, the lifting platform 7 and the antenna are together stored in the antenna storage chamber 2, and at this time, the shielding plate 3 is inserted into the through hole 13, and preferably, the top surface of the shielding plate 3 at this time is flush with the ground of the darkroom 1. When the antenna is needed to be used, the first lifting device 5 descends, the shielding plate 3 moves downwards to the position under the through hole 13 along with the first lifting device 5, the shielding plate 3 is completely separated from the through hole 13, the horizontal sliding device 6 runs, the shielding plate 3 is driven to move towards one side of the through hole 13 through the sliding of the driving sliding platform 4 relative to the first lifting device 5 until the shielding plate 3 and the through hole 13 are completely staggered, then, the second lifting device 8 ascends, the lifting platform 7 drives the antenna to ascend together until the lifting platform 7 is inserted into the through hole 13, and the antenna is completely located in the darkroom 1, namely the placement of the antenna is achieved, and the antenna is convenient to use subsequently. After the antenna finishes using, second elevating gear 8 moves down, drive elevating platform 7 and antenna and descend to under the opening 13, until being located the below of sliding platform 4, then, horizontal sliding device 6 moves, drive sliding platform 4 moves to under the opening 13, first elevating gear 5 rises, sunshade 3 is inserted and is established to opening 13 in, accomplish depositing of antenna promptly, darkroom 1 and antenna apotheca 2 mutually independent do not communicate this moment, each components and parts in antenna apotheca 2 just can not be influenced in the test of darkroom 1 like this, the operation of each components and parts of antenna apotheca 2 can not influence the test of darkroom 1 yet. Based on the above, the automatic replacing system of the utility model greatly reduces the workload of the workers, improves the working efficiency, does not affect the darkroom 1, and has better practicability.
Further, in the embodiment, the shielding plate 3 and the lifting platform 7 are both made of metal materials, the tops of the shielding plate and the lifting platform and the side wall of the lifting platform, which faces the through hole 13 when the through hole 13 is inserted, are both wrapped by the wave-absorbing layer, and the wave-absorbing layer is made of wave-absorbing materials; the first lifting device 5, the horizontal sliding device 6 and the second lifting device 8 are all pneumatic telescopic cylinders so as to reduce the mutual influence between the device and the darkroom 1.
Furthermore, four first lifting devices 5 are arranged, and four first lifting devices 5 are arranged around the outer sides of the second lifting device 8 and the lifting platform 7; the horizontal sliding devices 6 are arranged in two, the horizontal sliding devices 6 are respectively arranged on two opposite sides of the second lifting device 8, and the fixed section of each horizontal sliding device 6 is fixedly connected to the movable section of the first lifting device 5 on the side where the fixed section is located, so that the stability of the sliding platform 4 is improved, and the first lifting device 5 and the second lifting device 8 are not influenced mutually.
Furthermore, the four side walls of the shielding plate 3 and the lifting platform 7 are provided with elastic air bags 9, the elastic air bags 9 are connected with an air source device 12 through an inflation tube 11, the inflation tube 11 and the air source device 12 are both arranged on the antenna storage chamber 2, so that the shielding plate 3 and the lifting platform 7 can move in the through hole 13 and can completely seal the through hole 13 when the through hole 13 is inserted, namely, in order to facilitate the shielding plate 3 and the lifting platform 7 to freely move from the through hole 13, the outer contour size of the shielding plate 3 and the lifting platform 7 is slightly smaller than the opening size of the through hole 13, so that the through hole 13 is not in a sealed state when being sealed, so that the isolation between the dark chamber 1 and the antenna storage chamber 2 is not complete, and the elastic air bags 9 are arranged to be inflated under the action of the air source device 12 and can abut against the opening walls of the through hole 13, this just makes the opening 13 totally airtight, can be in completely isolated between darkroom 1 and the antenna storage room 2, when needs activity sunshade 3 and lift platform 7, elasticity gasbag 9 loses heart can, consequently, in this embodiment, air supply unit 12 is the gassing device, and elasticity gasbag 9 passes through gas tube 11 and is connected with the port of aerifing and the port of disappearing of air supply unit 12 respectively, and like this under the effect of air supply unit 12, elasticity gasbag 9 can realize filling and deflating. In order to further avoid that electromagnetic waves influence the darkroom 1 and the antenna existence room through the position of the elastic air bag 9, wave absorbing layers are preferably coated on the inner side surface and the outer side surface of the elastic air bag 9 and made of wave absorbing materials, and more preferably, the elastic air bag 9 is made of wave absorbing materials.
Furthermore, the elastic air bag 9 is provided with a plurality of clamping bulges 10 arranged at intervals, the clamping bulges 10 are communicated with the elastic air bag 9, and do not protrude out of the outer wall of the elastic air bag 9 when the elastic air bag 9 is in an uninflated state, and protrude out of the outer wall of the elastic air bag 9 when the elastic air bag is in an inflated state; offer the slot 14 that supplies the elastic airbag 9 holding under the gas filled state on the four mouthfuls of walls of opening 13, a plurality of draw-in grooves 15 have been seted up at the tank bottom interval of slot 14, and each draw-in groove 15 matches a screens arch 10, works as when elastic airbag 9 is in the gas filled state, the protruding 10 cards of screens go into in its draw-in groove 15 that corresponds to through the setting of the protruding 10 of a plurality of screens and draw-in groove 15, make elastic airbag 9 be connected inseparabler with opening 13, and the electromagnetic wave is isolated more thoroughly. Preferably, each retaining protrusion 10 has an annular strip-shaped structure. Further, a contact switch 16 is arranged at the bottom of the groove with at least one clamping groove 15, preferably, a contact switch 16 is arranged at each clamping groove 15, the triggering part of the contact switch 16 is positioned in the clamping groove 15, the contact switch 16 is connected with a central control system through a cable, the central control system is respectively connected with the first lifting device 5, the horizontal sliding device 6, the second lifting device 8 and the air source device 12 through cables, the condition that the clamping protrusions 10 are clamped with the clamping grooves 15 is known through the arrangement of the contact switch 16, namely whether the elastic air bag 9 is inserted into the through hole 13 in place or not is known, when the contact switches 16 are all triggered, all the clamping protrusions 10 are completely clamped, each control module can be controlled, the darkroom 1 can be tested, when one of the contact switches 16 is not triggered, the elastic air bag 9 is not inserted in place and needs to be readjusted, so that the test can be performed to reduce the influence of electromagnetic waves on the antenna storage chamber 2 and the darkroom 1.
Based on the above, the automatic antenna replacement system of the present invention does not affect the electromagnetic compatibility of the anechoic chamber 1 environment and does not become a fixed interference source in the anechoic chamber 1; after the antenna is automatically replaced, the change of the background noise in the environment of the anechoic chamber 1 is not influenced due to the change of the site switching; and the immunity test in the anechoic chamber 1 cannot cause any influence on the automatic test antenna replacing system and cannot become the tested equipment stably existing in the anechoic chamber 1. The above three points are the key points and difficulties of the design of the patent.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.
Claims (9)
1. An automatic replacing system for an antenna of a whole vehicle anechoic chamber test comprises an antenna storage chamber arranged right below an anechoic chamber; the method is characterized in that: the top of the antenna storage chamber is communicated with the bottom of the darkroom through a through hole, a shielding plate is movably inserted at the through hole, the shielding plate is arranged at the top of the sliding platform, the sliding platform is arranged in the antenna storage chamber, the bottom of the sliding platform is provided with a first lifting device, the sliding platform is connected with the first lifting device in a sliding way, the lifting direction of the first lifting device is the up-down direction, the first lifting device drives the shading plate to lift so that the shading plate is inserted into the through hole or positioned right below the bottom of the darkroom, a horizontal sliding device is arranged on the movable section of the first lifting device, the horizontal sliding device is of a telescopic structure, the fixed section of the horizontal sliding device is arranged on the first lifting device, and the telescopic end of the horizontal sliding device is connected with the bottom of the sliding platform and drives the sliding platform to horizontally slide relative to the first lifting device;
still be provided with lift platform in the antenna storage chamber, lift platform's top is used for placing the antenna, and it is just right the opening sets up, lift platform's bottom is provided with second elevating gear, second elevating gear's direction of rise is upper and lower direction, and it drives lift platform grafting opening perhaps is located the opening under, lift platform and sunshade are grafting opening not simultaneously.
2. The automatic antenna replacing system for the whole vehicle anechoic chamber test as claimed in claim 1, wherein: the curtain board and the lifting platform are made of metal materials, the tops of the curtain board and the lifting platform and the side wall of the opening are wrapped by the wave absorbing layer, and the wave absorbing layer is made of wave absorbing materials.
3. The automatic antenna replacing system for the whole vehicle anechoic chamber test as claimed in claim 1, wherein: the first lifting device, the horizontal sliding device and the second lifting device are all pneumatic telescopic cylinders.
4. The automatic antenna replacing system for the whole vehicle anechoic chamber test as claimed in claim 1, wherein: the four first lifting devices are arranged on the outer sides of the second lifting device and the lifting platform in a surrounding manner; the two horizontal sliding devices are respectively arranged at two opposite sides of the second lifting device, and the fixed section of each horizontal sliding device is fixedly connected to the movable section of the first lifting device at the side where the fixed section is located.
5. The automatic antenna replacing system for the whole vehicle anechoic chamber test as claimed in claim 1, wherein: elastic air bags are arranged on the four side walls of the shielding plate and the lifting platform, the elastic air bags are connected with an air source device through inflation tubes, and the inflation tubes and the air source device are arranged in the antenna storage chamber.
6. The automatic replacing system for the whole vehicle anechoic chamber test antenna as claimed in claim 5, wherein: wave absorbing layers are coated on the inner side surface and the outer side surface of the elastic air bag.
7. The automatic replacing system for the whole vehicle anechoic chamber test antenna as claimed in claim 5, wherein: the elastic air bag is provided with a plurality of clamping bulges which are arranged at intervals, the clamping bulges are communicated with the elastic air bag, and do not bulge out of the outer wall of the elastic air bag when the elastic air bag is in an uninflated state and bulge out of the outer wall of the elastic air bag when the elastic air bag is in an inflated state; offer the slot that supplies the elastic airbag holding under the gas filled state on the four mouthfuls of walls of opening, a plurality of draw-in grooves have been seted up at the tank bottom interval of slot, and it is protruding that each draw-in groove matches a screens, works as when the elastic airbag is in the gas filled state, the protruding card of screens is gone into in its draw-in groove that corresponds.
8. The automatic replacing system for the whole vehicle anechoic chamber test antenna as claimed in claim 7, wherein: each clamping bulge is of an annular strip-shaped structure.
9. The automatic replacing system for the whole vehicle anechoic chamber test antenna as claimed in claim 7, wherein: the bottom of the groove with at least one clamping groove is provided with a contact switch, the trigger part of the contact switch is positioned in the clamping groove, the contact switch is connected with a central control system through a cable, and the central control system is respectively connected with a first lifting device, a horizontal sliding device, a second lifting device and an air source device through cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122761938.3U CN216696488U (en) | 2021-11-11 | 2021-11-11 | Automatic replacing system for whole vehicle anechoic chamber test antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122761938.3U CN216696488U (en) | 2021-11-11 | 2021-11-11 | Automatic replacing system for whole vehicle anechoic chamber test antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216696488U true CN216696488U (en) | 2022-06-07 |
Family
ID=81831334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122761938.3U Active CN216696488U (en) | 2021-11-11 | 2021-11-11 | Automatic replacing system for whole vehicle anechoic chamber test antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216696488U (en) |
-
2021
- 2021-11-11 CN CN202122761938.3U patent/CN216696488U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204741458U (en) | Mobile phone antenna testing device | |
| KR101590395B1 (en) | Gas extraction system of medium and large secondary battery | |
| CN102057285A (en) | Test arrangement for testing surge voltage in electrical high voltage components | |
| CN216696488U (en) | Automatic replacing system for whole vehicle anechoic chamber test antenna | |
| KR101514031B1 (en) | Shield Box | |
| CN109818136A (en) | The moveable Bounded-wave Simulator antenna of inflatable and Bounded-wave Simulator | |
| CN107748075A (en) | Complete machine MMI automated test devices | |
| CN114236260A (en) | Automatic replacing system for whole vehicle anechoic chamber test antenna | |
| CN107525973A (en) | Conveying type electronic equipment radio frequency electromagnetic field radiation immunity test system | |
| CN202083751U (en) | Combined type fully anechoic chamber | |
| CN112816143A (en) | Air leakage detection equipment for inflatable product | |
| KR101530336B1 (en) | Electromagnetic wave absorber test equipment for electromagnetic anechoic chamber | |
| CN204257384U (en) | The ballast assembling test streamline of HID lamp | |
| CN210720581U (en) | High radio frequency shielding test equipment | |
| CN209432362U (en) | Cylinder cap air tightness detection equipment | |
| CN209432361U (en) | A kind of novel cylinder hood air tightness detection equipment | |
| TWI670502B (en) | Signal test system and its anechoic chamber | |
| CN202679379U (en) | Test device of wireless communication device | |
| CN203054021U (en) | Shielding device for testing radio frequency product | |
| CN109738126A (en) | A kind of novel cylinder hood air tightness detection equipment | |
| CN211785860U (en) | High-voltage mobile test platform | |
| CN117232741A (en) | Method and tooling equipment for rapidly detecting product tightness | |
| CN216116811U (en) | Building door and window detection equipment | |
| CN205506313U (en) | Self -rescuer gas tightness detection device | |
| CN106248311A (en) | Sealing performance detection device and sealing performance detection method with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |