CN107864602B - A kind of reverberation chamber wall-through motor and screen method - Google Patents
A kind of reverberation chamber wall-through motor and screen method Download PDFInfo
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- CN107864602B CN107864602B CN201710943264.4A CN201710943264A CN107864602B CN 107864602 B CN107864602 B CN 107864602B CN 201710943264 A CN201710943264 A CN 201710943264A CN 107864602 B CN107864602 B CN 107864602B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0001—Rooms or chambers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
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- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
This application discloses a kind of reverberation chamber wall-through motor, including electric machine assembly part and shielded layer part, the electric machine assembly part includes motor, retarder, motor cabinet, shaft coupling and drive shaft；The shielded layer part includes first screen layer, secondary shielding layer and third shielded layer, the first screen layer is the sealing aluminium foil at outer chamber and motor cabinet connecting sewing, the secondary shielding layer is conductive rubber shield item, the third shielded layer is metallic shield storehouse, the closed all electric machine assembly parts surrounded on the outside of reverberation chamber outer chamber.Disclosed herein as well is a kind of reverberation chamber wall-through motor screen methods, improve effectiveness using the method for installing three layers of shielded layer additional.The present invention solves the problems, such as that existing reverberation chamber wall-through motor via hole electromagnet shield effect is low, reduce electric machine assembly to the electromagnetic interference of reverberation chamber cavity and external environment, horizontal, vertical electric machine assembly uses modularized design, effectively increases electric machine assembly assembly work efficiency.
Description
Technical field
This application involves reverberation chamber high field intensity electromagnetic susceptibility test technical fields, more particularly to a kind of reverberation chamber wall-through
Motor and screen method.
Background technique
EMC reverberation chamber is an electrically large sizes high q-factor cavity body structure, passes through its internal mechanical stirring or source stirring to obtain
Uniform field strength, general EMC reverberation chamber by reverberation chamber metal cavity and internal transmitting antenna, receiving antenna, field intensity probe, stir
Mix instrument (signal source, power amplifier, power meter, the field strength monitor etc.) composition of device and outside.Reverberation chamber have it is low at
Sheet and the advantage for being easy to generate high field intensity.
Reverberation chamber has been utilized to carry out high field intensity electromagnetic susceptibility test to Complex Structural System in the world.The country is held at present
The equipment of load needs the electromagnetic environment field strength faced to be greater than 200V/m, can not effectively meet according to existing dark room test condition
High field intensity and system-level test demand.
During current reverberation chamber design, in order to guarantee the shield effectiveness of cavity, drive part (driving motor and subtracts
Fast device) it is generally all placed on the outside of the cavity of reverberation chamber, if motor, driver are all other than cavity, transmission shaft passes through shaft coupling
Device and internal rotating axis connection, such motor part can generate electromagnetic radiation, while transmission shaft will cause cavity and slit occurs, not have
Have in view of motor is to the electromagnetic interference of reverberation chamber and the shield effectiveness of reverberation chamber, so that the big discounting of test result accuracy
Button.
Summary of the invention
In view of this, the application provides a kind of reverberation chamber wall-through motor and screen method, existing reverberation chamber wall-through electricity is solved
The low problem of machine via hole electromagnet shield effect.
The embodiment of the present application provides a kind of reverberation chamber wall-through motor, including electric machine assembly part and shielded layer part；It is described
Reverberation chamber includes inner chamber body and outer chamber, there is spacing therebetween, and outer chamber inner wall installs pre-buried ring flange；The electric machine assembly
Part includes motor, retarder, motor cabinet, shaft coupling and drive shaft, and the motor is located at electric machine assembly end, and subtracts with described
Fast device is fixedly connected, and the two is located on the outside of outer chamber；The motor cabinet passes through two layers of cavity, is fixed on the pre-buried ring flange,
Conductive rubber shield bar groove is reserved in motor cabinet ring flange disk, the retarder is fixed on motor cabinet, and output shaft gos deep into institute
It states inside motor cabinet；Described shaft coupling one end is connected to the output shaft, the other end and the driving axis connection, the drive shaft
It protrudes into inside reverberation chamber, connects blender rotary shaft.The shielded layer part includes first screen layer, secondary shielding layer and third
Shielded layer, the first screen layer are the sealing aluminium foil at outer chamber and motor cabinet connecting sewing, and the secondary shielding layer is conduction
Rubber shielding strip is mounted in reserved conductive rubber shield bar groove, is pressed with the pre-buried ring flange, the third shielded layer is
Metallic shield storehouse, the closed all electric machine assembly parts surrounded on the outside of reverberation chamber outer chamber, wave is reserved on the third shielded layer
Conduit, motor signal line are drawn by the waveguide.
The embodiment of the present application also provides a kind of reverberation chamber wall-through motor screen method comprising the steps of: by pre-buried flange
Disk is fixed on the reverberation chamber outer chamber inner wall；The drive shaft is passed through into motor cabinet by motor cabinet upper end, until motor cabinet most bottom
Portion, and be fixedly connected；Shaft coupling is penetrated by motor cabinet upper end, is fixedly connected with the drive shaft；By the secondary shielding layer
It is penetrated by motor cabinet upper end；The retarder is penetrated by motor cabinet upper end, is fixedly connected with the shaft coupling；By the motor
It is fixedly connected with the retarder；The electric machine assembly is partially passed through into reverberation chamber cavity via hole, and by the motor cabinet and institute
Pre-buried ring flange is stated to be fixedly connected；By motor cabinet and reverberation chamber outer chamber connecting sewing encapsulation process, as first screen layer；?
Waveguide is reserved on three shielded layers, and motor signal line is drawn by waveguide；Third is installed additional on the outside of at the reverberation chamber via hole
Shielded layer.
At least one above-mentioned technical solution that the embodiment of the present application uses can reach following the utility model has the advantages that by motor group
The rational deployment and shielded layer of part design, and effectively improve the shield effectiveness of reverberation chamber, and reduce electric machine assembly to reverberation chamber
The electromagnetic interference of cavity and external environment；Horizontal, vertical electric machine assembly uses modularized design, considers actual installation working space, has
Effect improves assembly work efficiency；Motor signal line concentrates export using waveguide, not only ensure that signal transmission quality, but also improve
Shield effectiveness.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is a kind of reverberation chamber wall-through electric machine structure schematic diagram provided by the embodiments of the present application；
Fig. 2 is electric machine assembly partial structure diagram；
Fig. 3 is a kind of reverberation chamber wall-through motor screen method flow diagram provided by the embodiments of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one
Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall in the protection scope of this application.
This application involves large-scale reverberation chamber, referring in the world about the design standard of reverberation chamber, according to electromagnetic susceptibility
The performance requirement of test device carries out the environmental effect test of system-level equipment for generating electromagnetic susceptibility experimental enviroment.
The large-scale reverberation chamber test frequency range designed herein includes 10kHz~40GHz, and test is according to GB12190-2006
The method of " measurement method of electromagnetic shielding chamber shielding properties " defined carries out.Comprehensive associated specifications and standard requirements, are mixed
Ring room, control room, power amplifier room shielding properties meet it is claimed below:
1 reverberation chamber of table appraises through comparison performance indicator
| Frequency | Attenuation | Field source |
| 10kHz~14kHz | ≥70dB | Magnetic field |
| 150kHz~15MHz | ≥100dB | Magnetic field |
| 100MHz~40GHz | ≥100dB | Electric field |
Below in conjunction with attached drawing, the technical scheme provided by various embodiments of the present application will be described in detail.
Fig. 1 is a kind of reverberation chamber wall-through electric machine structure schematic diagram provided by the embodiments of the present application.Including electric machine assembly part
With shielded layer part；The reverberation chamber includes inner chamber body and outer chamber, there is spacing therebetween, and outer chamber inner wall installs pre-buried method
Blue disk；The electric machine assembly part includes motor 1, retarder 2, motor cabinet 3, shaft coupling (not shown in figure 1) and drive shaft 5,
The motor is located at electric machine assembly end, and is fixedly connected with the retarder 2, and the two is located on the outside of outer chamber；The motor
Seat 3 passes through two layers of cavity, is fixed on the pre-buried ring flange 30, reserves conductive rubber shield item in 6 disk of motor cabinet ring flange
Slot, the retarder 2 are fixed on motor cabinet 3, and output shaft gos deep into inside the motor cabinet 3；Described 4 one end of shaft coupling with it is described
Axis connection is exported, the other end is connect with the drive shaft 5, and the drive shaft 5 protrudes into inside reverberation chamber, connection blender rotation
Axis.The shielded layer part includes first screen layer 31, secondary shielding layer 32 and third shielded layer 33, the first screen layer 31
For the sealing aluminium foil at outer chamber and 2 connecting sewing of motor cabinet, the secondary shielding layer 32 is conductive rubber shield item, is mounted on pre-
It stays in conductive rubber shield bar groove, is pressed with the pre-buried ring flange 30, the third shielded layer 33 is metallic shield storehouse, closed
All electric machine assembly parts on the outside of reverberation chamber outer chamber are surrounded, reserve waveguide, motor signal on the third shielded layer 33
Line is drawn by the waveguide.
Preferably, the electric machine assembly part includes two kinds of forms of vertical pivot electric machine assembly and horizontal axis electric machine assembly, described perpendicular
The drive shaft of spindle motor component is the ladder ring structure of up big and down small different-diameter, and the horizontal axis electrical component motor cabinet right end uses
Baffle sealing.
It should be noted that horizontal, vertical electric machine assembly part uses General design method, two components use of the same race as far as possible
Structure.Since vertical pivot drive shaft is fixedly connected with perpendicular blender, drive shaft is by downward pulling force, therefore drive shaft is designed to
The ladder ring structure of small different-diameter under big, is cooperated with the stair-step inside motor cabinet, is rotatablely connected using combination bearing.
The horizontal axis electric machine assembly pulling force axial without receiving, therefore the sealing of motor cabinet right end does not have to design integrally, increases on right side
Add baffle, reduce the difficulty of processing and assembly in this way, other combinations are consistent with vertical pivot electric machine assembly.
Further, the closed encirclement mode of the third shielded layer is to be fully welded connection reverberation chamber outer chamber.
Three layers of shielding construction (from inside to outside) first layer are reverberation chamber inner cavity body portions, it is preferable that inside cavity uses two pieces
Galvanized steel plain sheet splices, and foil sealing is used at connecting sewing, improves the shield effectiveness of cavity portion；Second layer shielded layer is motor method
Increased conductive rubber shield item at blue disk 6 can reserve conductive rubber shield bar groove, conductive rubber shield item in motor flange disk
It is matured product in the market, is installed in designed shielding bar groove, is closed by flange surface and screened room face pressure, mesh
Be electromagnetic interference of the shield electric machine to inside cavity；Third layer is the shielding storehouse of outside motor, using welding form and exocoel
Body is fully welded connection, reduces motor and interferes the motor of external environment.According to the field strength size requirements of specific implementation, entire shielding case
Inner chamber body uses high-quality galvanized steel plain sheet.
It should be noted that design of Electromagnetic Shielding can be by carrying out rational deployment realization to electromagnetic interference source and pick-up.
The electromagnetic interference source of electric machine assembly is mainly motor and driver, and in structure design, motor is placed in least significant end, in design
It is placed in motor on the outside of reverberation chamber cavity, driver is directly positioned under the control room bottom plate in the outside of reverberation chamber cavity, needs
It is connected by lead.Other than considering influence of the motor to reverberation chamber inside cavity, also subtract as much as possible in the design process
Lack motor to the electromagnetic interference of external environment, therefore installed shielding storehouse additional on the outside of entire electric machine assembly, plays and reduce external spoke
The effect that blackberry lily is disturbed.
Preferably, the waveguide and third shielded layer are welded to connect.
Motor signal line will avoid the cabling of inhomogeneity signal from concentrating in together or nestle up carrying out moving towards separated time, should will be same
Class signal wire concentration carries out moving towards separated time layout designs.Signal wire in electric machine assembly is needed across third shielded layer, by drawing
Line is connected to drive side, generally takes two methods, first is that filter, second is that waveguide.By repeatedly practising, using waveguide
It can reach optimum efficiency with the form of shielded layer welding.
Preferably, the electric machine assembly part uses direct-connected form, and overall length is about 650mm.
The present embodiment is suitable for microwave reverberation chamber, is divided into inner chamber body and outer chamber, for example, the high 5.1m of reverberation chamber inner chamber body,
Outer chamber is 480mm apart from exterior building top height, and using direct-connected form, working frequency is 100MHz~18GHz.Reverberation
The size positions of the size positions of indoor chamber and external cavity, the size positions of vertical and horizontal blender and external construction wall are true
After fixed, according to electric machine assembly size, the final position and structure form that electric machine assembly is determined in conjunction with shielding requirements.
Electric machine assembly (including motor, retarder, drive shaft) is placed across reverberation chamber wall, motor and retarder setting
On the outside of cavity, rest part includes that drive shaft and shaft coupling pass through two layers of cavity of reverberation chamber, and drive shaft protrudes into reverberation chamber inner cavity
Body can reduce motor to the electromagnetic interference of reverberation chamber, while improve the shield effectiveness of reverberation chamber.
Preferably, the motor is 110BYG350CH-SAKSMA-0501 stepper motor, and the stepper motor driver is
SH-20803A.Motor performance parameter, rotary inertia 13560gcm2 keep torque 12Nm, location torque 0.5Nm；It is described
Retarder selects PS142-030, reduction ratio 30:1.
The model of the motor, retarder is turned round according to the horizontal, vertical agitator type and weight of simulation optimization by calculating
The parameters such as square, power, it is final to determine.
Wall-through motor provided in this embodiment is let out by the selection of material, the determination of structure type and to shield slit
The inhibition of leakage, effectively improves the shield effectiveness of reverberation chamber, and reduces electric machine assembly to the electricity of reverberation chamber cavity and external environment
Magnetic disturbance；Motor signal line concentrates export using waveguide, not only ensure that signal transmission quality, but also improve shield effectiveness.
Fig. 2 is electric machine assembly partial structure diagram.Including motor 1, retarder 2, motor cabinet 3, shaft coupling 4, drive shaft
5, closing cap 7, bearing cap 8, deep groove ball bearing 9 (80 × Φ of Φ 125 × 18), flat-pushing bearing 10 (75 × Φ of Φ 100 × 19) and
Locking nut 11 (70 × Φ of Φ 90 × 12).
Preferably, the motor is 110BYG350CH.
Preferably, the retarder is PS142-030.
Further, the size of the deep groove ball bearing 9 is 80 × Φ of Φ 125 × 18, the size of the flat-pushing bearing 10
For 75 × Φ of Φ 100 × 19, the size of the locking nut 11 is 70 × Φ of Φ 90 × 12.
It should be noted that motor cabinet 3 is the core component for connecting motor 1, retarder 2 and drive shaft 5, motor cabinet 3 is circle
There are stepped hole in cylindricality, inside, and motor cabinet 3 has motor cabinet ring flange 6, can be fixedly mounted on the steel skeleton of reverberation chamber cavity；
Motor 1 and retarder 2 with fastener by being fixedly connected from flange plate；Retarder 2 and motor cabinet 3 pass through motor cabinet flange
Disk 6, is equally fixedly connected with fastener, conductive rubber shield bar groove is reserved on motor cabinet ring flange 6, for installing conductive rubber
Shielding strip；The output shaft of retarder 2 is deep into inside motor cabinet 3, is connect by shaft coupling 4 with drive shaft 5.
The electric machine assembly part includes two kinds of forms of vertical pivot electric machine assembly and horizontal axis electric machine assembly, the vertical pivot motor group
The drive shaft of part is the ladder ring structure of up big and down small different-diameter, and the horizontal axis electrical component motor cabinet right end is sealed using baffle
Mouthful.
Fig. 3 is a kind of reverberation chamber wall-through motor screen method flow diagram provided by the embodiments of the present application.Comprising following
Step:
Step 101: pre-buried ring flange is fixed on the reverberation chamber outer chamber inner wall；
Step 102: the drive shaft is passed through into motor cabinet by motor cabinet upper end, until motor cabinet bottommost, and be fixedly connected；
Step 103: shaft coupling being penetrated by motor cabinet upper end, is fixedly connected with the drive shaft；
Step 104: the secondary shielding layer is penetrated by motor cabinet upper end；
Step 105: the retarder being penetrated by motor cabinet upper end, is fixedly connected with the shaft coupling；
Step 106: the motor is fixedly connected with the retarder；
Step 107: the electric machine assembly is partially passed through into reverberation chamber cavity via hole, and by the motor cabinet with it is described pre-buried
Ring flange is fixedly connected；
Step 108: by motor cabinet and reverberation chamber outer chamber connecting sewing encapsulation process, as first screen layer；
Step 109: reserving waveguide on third shielded layer, and motor signal line is drawn by waveguide；
Step 110: installing third shielded layer on the outside of at the reverberation chamber via hole additional.
Generally, shaft coupling window should also be closed using closing cap.
Further, the electric machine assembly part includes two kinds of forms of vertical pivot electric machine assembly and horizontal axis electric machine assembly, described
The drive shaft of vertical pivot electric machine assembly is the ladder ring structure of up big and down small different-diameter, and the horizontal axis electrical component motor cabinet right end is adopted
It is sealed with baffle.
It is worn from reverberation chamber inner chamber body to outer chamber vertical pivot electric machine assembly part.In view of reverberation chamber physical location feelings
Condition, cavity is smaller apart from building roof, such as 480mm, and there are also third shielded layers on the outside of cavity, therefore vertical pivot electric machine assembly needs
It is whole to be stretched out from bottom to top inside reverberation chamber, it is fastenedly connected using ring flange landing.
It is worn from reverberation chamber outer chamber to inner chamber body horizontal axis electric machine assembly part.Horizontal axis electric machine assembly and vertical pivot motor group
Part mounting means is almost the same, the difference is that the installation position of electric machine assembly, is protruded by inside cavities lateral outside reverberation chamber cavity.
It is pierced by the waveguide that motor signal line is reserved by third shielded layer, signal wire is directly connected to the driving of control room
On device.
Method of the present embodiment by installing three shielded layers additional to wall-through motor, effectively improves the shield effectiveness of reverberation chamber,
And reduce electric machine assembly to the electromagnetic interference of reverberation chamber cavity and external environment；Horizontal, vertical electric machine assembly uses modularized design,
Consider actual installation working space, effectively improves assembly work efficiency；Motor signal line concentrates export using waveguide, both guarantees
Signal transmission quality, and improve shield effectiveness.
The above description is only an example of the present application, is not intended to limit this application.For those skilled in the art
For, various changes and changes are possible in this application.All any modifications made within the spirit and principles of the present application are equal
Replacement, improvement etc., should be included within the scope of the claims of this application.
Claims (10)
1. a kind of reverberation chamber wall-through motor, the reverberation chamber includes inner chamber body and outer chamber, there is spacing therebetween, in outer chamber
Wall installs pre-buried ring flange, which is characterized in that including electric machine assembly part and shielded layer part；
The electric machine assembly part includes motor, retarder, motor cabinet, shaft coupling and drive shaft, and the motor is located at motor group
Part end, and be fixedly connected with the retarder, the two is located on the outside of outer chamber；The motor cabinet passes through two layers of cavity, fixed
In reserving conductive rubber shield bar groove on the pre-buried ring flange, motor cabinet ring flange disk, the retarder is fixed on motor
On seat, output shaft gos deep into inside the motor cabinet；Described shaft coupling one end is connected to the output shaft, the other end and the driving
Axis connection, the drive shaft protrude into inside reverberation chamber, connect blender rotary shaft；
The shielded layer part includes first screen layer, secondary shielding layer and third shielded layer, and the first screen layer is exocoel
Sealing aluminium foil at body and motor cabinet connecting sewing, the secondary shielding layer are conductive rubber shield item, are mounted on reserved conductive rubber
Glue shields in bar groove, presses with the pre-buried ring flange, and the third shielded layer is metallic shield storehouse, outside closed encirclement reverberation chamber
All electric machine assembly parts on the outside of cavity, waveguide is reserved on the third shielded layer, and motor signal line passes through the waveguide
Pipe is drawn.
2. reverberation chamber wall-through motor as described in claim 1, which is characterized in that the electric machine assembly part includes vertical pivot motor group
Two kinds of forms of part and horizontal axis electric machine assembly, the drive shaft of the vertical pivot electric machine assembly are the cascade ring knot of up big and down small different-diameter
Structure, the horizontal axis electrical component motor cabinet right end are sealed using baffle.
3. reverberation chamber wall-through motor as described in claim 1, which is characterized in that the closed encirclement mode of third shielded layer is full
Weldering connection reverberation chamber outer chamber.
4. reverberation chamber wall-through motor as described in claim 1, which is characterized in that the waveguide and the welding of third shielded layer connect
It connects.
5. reverberation chamber wall-through motor as claimed in claim 2, which is characterized in that the electric machine assembly part uses direct-connected form.
6. reverberation chamber wall-through motor as claimed in claim 5, which is characterized in that the reverberation chamber inside cavity is zinc-plated using two pieces
Steel plate splicing, foil sealing at connecting sewing.
7. reverberation chamber wall-through motor as claimed in claim 6, which is characterized in that electric machine assembly part overall length is about 650mm.
8. reverberation chamber wall-through motor as claimed in claim 4, which is characterized in that the motor is 110BYG350CH-SAKSMA-
0501 stepper motor, the stepper motor driver are SH-20803A.
9. a kind of reverberation chamber wall-through motor screen method exists for shielding claim 2,5 or the 6 wall-through motors, feature
In comprising the steps of:
Pre-buried ring flange is fixed on the reverberation chamber outer chamber inner wall；
The drive shaft is passed through into motor cabinet by motor cabinet upper end, until motor cabinet bottommost, and be fixedly connected；
Shaft coupling is penetrated by motor cabinet upper end, is fixedly connected with the drive shaft；
The secondary shielding layer is penetrated by motor cabinet upper end；
The retarder is penetrated by motor cabinet upper end, is fixedly connected with the shaft coupling；
The motor is fixedly connected with the retarder；
The electric machine assembly is partially passed through into reverberation chamber cavity via hole, and the motor cabinet and the pre-buried ring flange are fixed and connected
It connects；
By motor cabinet and reverberation chamber outer chamber connecting sewing encapsulation process, as first screen layer；
Waveguide is reserved on third shielded layer, and motor signal line is drawn by waveguide；
Install third shielded layer on the outside of at the reverberation chamber via hole additional.
10. reverberation chamber wall-through motor screen method as claimed in claim 9, which is characterized in that vertical pivot electric machine assembly portion
Divide and worn from reverberation chamber inner chamber body to outer chamber, horizontal axis electric machine assembly part is worn from reverberation chamber outer chamber to inner chamber body.
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| CN201710943264.4A CN107864602B (en) | 2017-10-11 | 2017-10-11 | A kind of reverberation chamber wall-through motor and screen method |
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| CN201710943264.4A CN107864602B (en) | 2017-10-11 | 2017-10-11 | A kind of reverberation chamber wall-through motor and screen method |
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| CN107864602B true CN107864602B (en) | 2019-04-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08326340A (en) * | 1995-05-26 | 1996-12-10 | Tomoe Corp | Electromagnetic wave shielding room |
| CN201311434Y (en) * | 2008-12-15 | 2009-09-16 | 北方设计研究院 | Electromagnetic reverberation room |
| JP6019813B2 (en) * | 2012-06-27 | 2016-11-02 | シンフォニアテクノロジー株式会社 | Electromagnetic measuring device for rotating machinery |
| CN103558422B (en) * | 2013-10-31 | 2016-06-08 | 陕西海泰电子有限责任公司 | A kind of mechanical agitation of electromagnetic reverberation room, source stirring mixed stirring device and method |
| CN203934270U (en) * | 2014-04-15 | 2014-11-05 | 安方高科电磁安全技术(北京)有限公司 | Shielding through wall device and the shield electric machine of rotating shaft |
| CN104133126A (en) * | 2014-07-01 | 2014-11-05 | 陕西海泰电子有限责任公司 | Source stirring electromagnetic reverberation chamber and stirring method thereof |
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