CN108828485A - A kind of field intensity probe omni-directional calibration system, method and holder device - Google Patents
A kind of field intensity probe omni-directional calibration system, method and holder device Download PDFInfo
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- CN108828485A CN108828485A CN201810224296.3A CN201810224296A CN108828485A CN 108828485 A CN108828485 A CN 108828485A CN 201810224296 A CN201810224296 A CN 201810224296A CN 108828485 A CN108828485 A CN 108828485A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
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Abstract
This application discloses a kind of field intensity probe holder devices, including drag articulation, pitching joint, turntable and probe strut；The drag articulation includes the first drag articulation and the second drag articulation, and the second drag articulation first end can stretch in first drag articulation；Pitching joint second end is flexibly connected with the second drag articulation second end；The turntable rotates a circle for controlling the probe strut around Pivot Point Center.A kind of field intensity probe omni-directional calibration system, including the room TEM, standard gain antenna, antenna holder and above-mentioned field intensity probe holder device are also disclosed, the antenna holder is for adjusting the standard gain antennas orthogonal, level and pitch position.Disclosed herein as well is a kind of field intensity probe omni-directional calibration methods.The application, which takes, to be manually adjusted with the automatically controlled mode combined, and the field intensity probe position that can be accurately positioned in omni-directional test and the angle that spins are convenient to mount and dismount, while having preferable economy and convenience.
Description
Technical field
This application involves calibration test technical fields, more particularly to a kind of field intensity probe omni-directional calibration system, method
And holder device.
Background technique
Currently, no matter civil field or military domain, measurement and metering requirements to field strength parameter are very universal,
Transmission of quantity value meaning is of crucial importance, and the calibration of field intensity probe can guarantee the magnitude of field strength measurement in corresponding band and amplitude range
It is unified.Field intensity probe and field strength meter are the necessary equipments for measuring field strength, in public environment evaluation work and popular life field
Electromagnetic environment, industry, health care and electronic and electrical equipment radio-frequency radiation electromagnetic field immunity context of detection effect increasingly
Significantly.R&D institution, inspection body, environmental protection administration and the defence and military department in China purchased every year a large amount of field strength meters and
Field intensity probe, frequency coverage 10kHz~40GHz.
Omni-directional is one of important calibration parameter of field intensity probe.Omnidirectional's sexual deviation of field intensity probe is also referred to as each to same
Property, field intensity probe is characterized to the sensitivity of all directions electromagnetic radiation intensity, and field intensity probe omni-directional is calibrated, meaning weight
Greatly.
There is the experience for carrying out the test of field intensity probe omni-directional both at home and abroad at present, however due to each correcting mechanism experimental situation
And system building is different, and field intensity probe is accurately positioned in the calibration method and calibration process of field intensity probe omni-directional, essence
Really spin is also not quite similar, this affects the versatility of field intensity probe omni-directional deviation calibration to a certain extent.
Summary of the invention
In view of this, the application provides a kind of field intensity probe omni-directional calibration system, method and holder device, solve existing
The problem that field intensity probe omni-directional calibration method applicability is not strong, field intensity probe positioning is inaccurate and spin angle is inaccurate.
The embodiment of the present application provides a kind of field intensity probe holder device, including drag articulation, pitching joint, turntable and spy
Head strut；The drag articulation includes the first drag articulation and the second drag articulation, the second drag articulation first end and institute
The flexible connection of the first drag articulation second end is stated, the second drag articulation first end can stretch in first drag articulation
Contracting；Pitching joint second end is flexibly connected with the second drag articulation second end, pitching joint first end and institute
Turntable second end is stated to be fixedly connected；The turntable first end is flexibly connected with the probe strut second end, the rotation
Platform rotates a circle for controlling the probe strut around Pivot Point Center；The probe strut first end connects field intensity probe；It is described
Field intensity probe holder device is Solid non-metallic hard material.
The embodiment of the present application also provides a kind of field intensity probe omni-directional calibration system, including the room TEM, standard gain antenna,
Antenna holder and field intensity probe holder device, the antenna holder is for adjusting the standard gain antennas orthogonal, level and bowing
Face upward position；The room TEM and field intensity probe holder device form low-frequency calibration device, and the low-frequency calibration device is for work frequency
Rate is the field intensity probe of 10kHz~500MHz, generates the omni-directional calibration in pattern field in the room TEM；The standard gain antenna,
The antenna holder and field intensity probe holder device form high frequency calibrating installation, and the high frequency calibrating installation is for working frequency
The field intensity probe of 500MHz~40GHz, the standard gain antenna described in microwave dark room generate the omni-directional calibration in pattern field.
The embodiment of the present application also provides a kind of field intensity probe omni-directional calibration method, is used for above-mentioned omni-directional calibration system,
It comprises the steps of：Judge that omni-directional calibrates field intensity probe working frequency size；
When working frequency is less than 500MHz, low-frequency calibration method is selected, the low-frequency calibration method includes following step
Suddenly, 50 Ω load is connected to the room TEM one end；By radio-frequency power from the room other end feed-in TEM；Feed-in net power is measured, mark is calculated
Quasi-electric field intensity；Field intensity probe is placed in calibration field, adjustment field intensity probe to ideal position；
When working frequency is greater than 500MHz, high frequency calibration method is selected, the high frequency calibration method includes following step
Suddenly, microwave dark room is chosen；By radio-frequency power feed-in standard gain antenna；Feed-in net power is measured, standard electric field strength is calculated；It will
The standard gain antenna is consistent with the adjustment of field intensity probe height；By field intensity probe along the radial axis of standard gain Antenna aperture
Direction is aligned along line；Adjust the standard gain antenna and field intensity probe horizontal distance；
Field intensity probe is rotated a circle around its axle center by identical stepping；The electric-field strength in the case where rotary gap reads each angle
Degree；Calculate field intensity probe omnidirectional sexual deviation.
At least one above-mentioned technical solution that the embodiment of the present application uses can reach following beneficial effect：Of the invention is complete
Tropism calibrating installation solves the problems, such as the field intensity probe omni-directional deviation calibration in electromagnetic radiation environment；With stronger general
Property, it is suitable for most field intensity probe omni-directional tests；It can be accurately positioned by automatically controlled and manually adjust the mode of combining
Field intensity probe position and spin angle in omni-directional test, it is not only economical but also convenient；Can 0 °~180 ° adjust omnidirectionals probe
Pitch angle, the maximum of field intensity probe for obtaining different structure receive azimuth；It is convenient for disassembly and assembly, omni-directional with higher
Testing efficiency.
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 field intensity probe holder device structural schematic diagram provided by the embodiments of the present application；
Fig. 2 is pitching joint structure schematic diagram；
Fig. 3 is second of field intensity probe holder device structural schematic diagram provided by the embodiments of the present application；
Fig. 4 is a kind of field intensity probe omni-directional calibration system block diagram provided by the embodiments of the present application；
Fig. 5 is the low-frequency calibration apparatus structure schematic diagram in omni-directional calibration system；
Fig. 6 is the high frequency calibrating installation structural schematic diagram in omni-directional calibration system；
Fig. 7 is a kind of field intensity probe omni-directional calibration 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.
Receiving device of the field intensity probe as ELECTROMAGNETIC RADIATION SIGNATURE, omnidirectional's sexual deviation affect calibration to a certain extent
Accuracy.FL7040, FL7218 of HI-6053, AR company of common field intensity probe such as ETS company etc. are by pairwise orthogonal
Three unipole antennas are engraved on dielectric material to receive electromagnetic signal, and unipole antenna and dielectric material are in a fixed angle.Cause
This tested probe, which needs to be pivoted at an angle, carries out omni-directional test.
IEEE 1309-2013《IEEE Standard for Calibration of Electromagnetic Field
Sensors and Probes,Excluding Antennas,from 9kHz to 40GHz》To field intensity probe omnidirectional sexual deviation
Calculation method carried out simple introduction：
A is omnidirectional's sexual deviation, E in formulamax、EminRespectively field strength greatest measurement and field strength minimum measured value.
Table 1 is the omni-directional index for the part field intensity probe that each manufacturer provides, omnidirectional's sexual deviation from 0.6dB~
1.8dB, therefore field intensity probe omni-directional is calibrated, it is significant.
1. field intensity probe omnidirectional sexual deviation of table
| Model | FL7030 | FL7040 | FP5080 | HI-6053 | HI-6122 | EP408 | EF1891 | RF-06 |
| Producer | AR | AR | AR | ETS | ETS | PMM | Narda | Gloomy fragrance |
| Omni-directional | 0.6dB | 1.8dB | 1.2dB | 1.2dB | 0.8dB | 1.0dB | 1.2dB | 1.5dB |
Determine that the factor of the accuracy of field intensity probe omni-directional deviation calibration is primarily threefold.One is needing to generate
External electrical field the environment E, E of one continuous-stablemaxAnd EminIt is that S keeps the measurement result under stable condition the second is field strength
Probe needs to be accurately positioned, even if E is remained unchanged, field intensity probe position, which changes, will affect EmaxAnd EminMeasurement result
Accuracy is finally, omni-directional test needs field intensity probe to spin along its a certain axle center from 0~360 °, and spin stepping is smaller, Emax
And EminIt is more accurate.Therefore, it is necessary to the experimental situation calibrated to omni-directional, locating support is related to spin stand progress sets for probe
Meter.
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 field intensity probe holder device structural schematic diagram provided by the embodiments of the present application.Including drag articulation 1,
Pitching joint 2, turntable 3 and probe strut 4；The drag articulation includes the first drag articulation 11 and the second drag articulation 12,
Second drag articulation, 12 first end is flexibly connected with 11 second end of the first drag articulation, second drag articulation 12
First end can stretch in first drag articulation 11；2 second end of pitching joint and second drag articulation 12 the
Two ends are flexibly connected, and 2 first end of pitching joint is fixedly connected with 3 second end of turntable；3 first end of turntable
It is flexibly connected with 4 second end of probe strut, the turntable 3 rotates one around Pivot Point Center for controlling the probe strut
Week；4 first end of probe strut connects field intensity probe；The field intensity probe holder device is Solid non-metallic hard material.
It should be noted that the drag articulation 1 is used to adjust the height of field intensity probe holder device, it is vertical by second
Joint 12 slides up and down in the first drag articulation 11, and field intensity probe is adjusted to test desired height；Pitching joint 2 is for adjusting
Whole field intensity probe pitch angle is freely rotated, by field intensity probe tune in the second drag articulation 12 by 2 second end of pitching joint
Section meets pitch angle needed for testing to 0 to 180 ° of unspecified angle；By adjusting vertical and two dimensions of pitching, field intensity probe
Test ideal calibration position can be placed into.
Preferably, first drag articulation 11 can be locked with second drag articulation 12 by holding screw.On the spot
After strong probe adjusting reaches predetermined altitude, the second drag articulation 12 is locked at by the first drag articulation 11 by clamp screw adjusting screw
In, probe height is fixed at this time.
Preferably, 2 second end of pitching joint (tail end) is discoid, and outer peripheral surface indicates angle index.Angular range
It is 0 to 180 °, the degree for indicating that the arrow graduation mark of angle is directed toward is pitch angle.
Further, 12 second end of the second drag articulation fluting, the fluting and 2 second end of pitching joint circle
Plate-like matches.
Preferably, the pitching joint 2 can be fixed by lock-screw 9 with the drag articulation 1.When pitching joint 2 is adjusted
Whole both to be made using lock-screw nut fixed to after specified angle, field intensity probe pitch angle is fixed at this time.
It is further preferred that the turntable 3 is electronically controlled rotary table.When field intensity probe reaches test ideal calibration position
Afterwards, it is rotated by process control electronically controlled rotary table according to specified angle stepping, electronically controlled rotary table drives the field intensity probe on strut 4
Stepping rotation, meanwhile, it can be in the electric field strength E of rotary gap reading field intensity probei。
It should be noted that the material of the holder device uses the rigid non-metallic material for not influencing electromagnetic field radiation,
Such as polyformaldehyde etc..
Field intensity probe holder device provided in this embodiment has stronger versatility, is suitable for most field strength and visits
Head omni-directional test；The field intensity probe in omni-directional test can be accurately positioned by automatically controlled and manually adjust the mode of combining
Position and spin angle, it is not only economical but also convenient；It is capable of the pitch angle of 0 °~180 ° adjusting omnidirectional probes, for obtaining different knots
The maximum of the field intensity probe of structure receives azimuth.
Fig. 2 is pitching joint structure schematic diagram.2 second end of pitching joint (tail end) be it is discoid, outer peripheral surface indicates
Angle index.Angular range is 0 to 180 °, and indicating that the arrow graduation mark of angle is directed toward degree is pitch angle.
Further, 12 second end of the second drag articulation is provided with and the discoid phase of 2 second end of pitching joint
The slot matched.After pitching joint 2 is adjusted to specified angle, both made using lock-screw nut 9 fixed, field intensity probe is bowed at this time
Elevation angle degree is fixed.
Fig. 3 is second of field intensity probe holder device structural schematic diagram provided by the embodiments of the present application.Except including shown in Fig. 1
Component outside, further include bracket base 6, the bracket base 6 include castor 7.
The bracket base is fixedly connected by flange 8 with the drag articulation 1.
The castor 7, which facilitates, is moved to ideal position for holder device.
Fig. 4 is a kind of field intensity probe omni-directional calibration system block diagram provided by the embodiments of the present application.Including the room TEM, standard
Gain antenna, antenna holder and field intensity probe holder device shown in Fig. 3, the antenna holder is for adjusting the standard gain
Antennas orthogonal, level and pitch position；Field intensity probe holder device described in the room TEM and claim 2 forms low-frequency calibration
Device, the field intensity probe that the low-frequency calibration device is 10kHz~500MHz for working frequency generate pattern field in the room TEM
In omni-directional calibration；The standard gain antenna 20, the antenna holder and field intensity probe holder device shown in Fig. 3 composition
High frequency calibrating installation, the field intensity probe that the high frequency calibrating installation is 500MHz~40GHz for working frequency, in microwave dark room
Described in standard gain antenna generate pattern field in omni-directional calibration.
It should be noted that according to the difference of working frequency range, the test of field intensity probe omni-directional needs respectively in the room TEM and micro-
It is calibrated in wave darkroom.According to long term test data as a result, the application is using working frequency 500MHz as low frequency and high frequency line of demarcation,
When less than 500MHz, omni-directional detection calibration is carried out in the room TEM；When greater than 500MHz, in microwave dark room, increased using standard
The pattern field that beneficial antenna generates carries out detection calibration, to guarantee the reliability and accuracy of test result.
Fig. 5 is the low-frequency calibration apparatus structure schematic diagram in omni-directional calibration system.Including the room TEM, field intensity probe bracket
Device, field intensity probe and laboratory table.The calibration of 10kHz~500MHz field intensity probe omni-directional, can use the standard of the room TEM generation
It is calibrated field.
The low-frequency calibration device forms power source by signal source and amplifier, by the cell radio-frequency power feed-in TEM, TEM
Cell tail end connects 50 Ω load, and power meter measures the feed-in net power of the cell TEM by dual directional coupler, to calculate small
The standard electric field strength of indoor generation.Tested field intensity probe is placed on field intensity probe holder device as shown in Figure 3, is led to thereafter
The ideal position that field intensity probe is placed in pattern field by adjustment bracket is crossed, field intensity probe is controlled around itself axis by turntable 3
The electric field strength under each rotation angle is read in heart rotation.
After rotating a circle, according to the electric field strength data of acquisition, the omni-directional that field intensity probe can be calculated according to formula 1 is inclined
Difference.
According to long term test data as a result, the application is less than using working frequency 500MHz as low frequency and high frequency line of demarcation
When 500MHz, using this figure shown device, omni-directional detection calibration is carried out in the room TEM.
Fig. 6 is the high frequency calibrating installation structural schematic diagram in omni-directional calibration system.Including standard gain antenna 20, antenna
Bracket, field intensity probe holder device and field intensity probe.The calibration of 500MHz~40GHz field intensity probe omni-directional, can be dark in microwave
It is calibrated in room using the pattern field that standard gain antenna generates, microwave dark room is the shielding of maskable extraneous electromagnetic signals
Room.High frequency calibrating installation forms power source by signal source and amplifier, and by radio-frequency power feed-in standard gain antenna, power meter is logical
The feed-in net power of dual directional coupler measurement standard gain antenna is crossed, so as to calculate criterion distance gain antenna mouth face
At a certain distance from standard electric field strength.
The application when being greater than 500MHz and being less than 40GHz, is used using working frequency 500MHz as low frequency and high frequency line of demarcation
This figure shown device carries out omni-directional detection calibration in microwave dark room.
Field intensity probe holder device as shown in Figure 1 is mounted on microwave dark room bottom plate by flange 8, by vertically closing
Field intensity probe height and pitch angle is adjusted in section 1 and pitching joint 2.
The antenna holder includes vertical displacement regulating device 21, horizontal displacement regulating device 22 and pitching regulating device
23, three kinds of regulating devices are driven by screw pair, can accurately adjust displacement, realize the three-dimensional localization of standard gain antenna 20.
It should be noted that the distance of standard gain antenna 20 and field intensity probe can be led by the sliding of microwave dark room bottom
Rail adjusts.
After regulating the position of standard gain antenna 20 and field intensity probe, by process control electronically controlled rotary table according to finger
Determine angle stepping rotation, and reads the electric field strength of field intensity probe in rotary gap.
Tested field intensity probe is placed on field intensity probe holder device as shown in Figure 1, thereafter by adjusting bracket by field
Strong ideal position of the probe placement in pattern field controls field intensity probe by turntable 3 and rotates around Pivot Point Center, read each
Electric field strength E under a rotation anglei。
After rotating a circle, according to the electric field strength data of acquisition, the omni-directional that field intensity probe can be calculated according to formula 1 is inclined
Difference.
Fig. 7 is a kind of field intensity probe omni-directional calibration method flow diagram provided by the embodiments of the present application, for such as Fig. 4
Shown in omni-directional calibration system.It comprises the steps of：
Step 101：Judge that omni-directional calibrates field intensity probe working frequency size；
When working frequency is less than 500MHz, step 102A, i.e. low-frequency calibration method are carried out；
Step 102A：It comprises the steps of, step 201：50 Ω load is connected to the room TEM one end；Step 202：By radio frequency
Power is from the room other end feed-in TEM；Step 203：Feed-in net power is measured, standard electric field strength is calculated；Step 204：By field strength
Probe is placed in calibration field, adjustment field intensity probe to ideal position；
When working frequency is greater than 500MHz, step 102B, i.e. high frequency calibration method are carried out；
Step 102B：It comprises the steps of, step 301：Choose microwave dark room；Step 302：By radio-frequency power feed-in standard
Gain antenna；Step 303：Feed-in net power is measured, standard electric field strength is calculated；Step 304：By the standard gain antenna and
The adjustment of field intensity probe height is consistent；Step 305：By field intensity probe along the radial central axes of standard gain Antenna aperture direction
Alignment；Step 306：Adjust the standard gain antenna and field intensity probe horizontal distance；
Step 103：Field intensity probe is rotated a circle around its axle center by identical stepping；
Step 104：The electric field strength in the case where rotary gap reads each angle；
Step 105：Calculate field intensity probe omnidirectional sexual deviation.
It should be noted that the distance between standard gain antenna 20 and field intensity probe pass through the sliding of microwave dark room bottom
Guide rail adjusts.
It should be noted that omnidirectional's sexual deviation of field intensity probe can be calculated according to formula 1.
The omni-directional calibration method that the present embodiment uses, solves the field intensity probe omnidirectional sexual deviation in electromagnetic radiation environment
Calibration problem；With stronger versatility, it is suitable for most field intensity probe omni-directional tests；Omni-directional with higher is surveyed
Try efficiency.
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 (9)
1. a kind of field intensity probe holder device, which is characterized in that including drag articulation, pitching joint, turntable and probe strut；
The drag articulation includes the first drag articulation and the second drag articulation, the second drag articulation first end and described the
One drag articulation second end is flexibly connected, and the second drag articulation first end can stretch in first drag articulation；
Pitching joint second end is flexibly connected with the second drag articulation second end, pitching joint first end and institute
Turntable second end is stated to be fixedly connected；
The turntable first end is flexibly connected with the probe strut second end, and the turntable is for controlling the probe branch
Bar rotates a circle around Pivot Point Center；
The probe strut first end connects field intensity probe；
The field intensity probe holder device is Solid non-metallic hard material.
2. field intensity probe holder device as described in claim 1, which is characterized in that it further include bracket base, the bracket base
Including castor.
3. field intensity probe holder device as claimed in claim 2, which is characterized in that pitching joint second end be it is discoid,
Outer peripheral surface indicates angle index.
4. field intensity probe holder device as claimed in claim 3, which is characterized in that the second drag articulation second end fluting,
The fluting with pitching joint second end is discoid matches.
5. field intensity probe holder device as claimed in claim 4, which is characterized in that the pitching joint and the drag articulation can
It is fixed by lock-screw.
6. field intensity probe holder device as claimed in claim 5, which is characterized in that first drag articulation hangs down with described second
Straight joint can be locked by holding screw.
7. field intensity probe holder device as claimed in claim 6, which is characterized in that the turntable is electronically controlled rotary table.
8. a kind of field intensity probe omni-directional calibration system, which is characterized in that including the room TEM, standard gain antenna, antenna holder and
Field intensity probe holder device described in claim 1~7 any one, the antenna holder is for adjusting the standard gain antenna
Vertically, horizontal and pitch position；
The room TEM and the field intensity probe holder device form low-frequency calibration device, and the low-frequency calibration device is used for work
Frequency is the field intensity probe of 10kHz~500MHz, generates the omni-directional calibration in pattern field in the room TEM；
The standard gain antenna, the antenna holder and the field intensity probe holder device form high frequency calibrating installation, described
The field intensity probe that high frequency calibrating installation is 500MHz~40GHz for working frequency, the standard gain day described in microwave dark room
Line generates the omni-directional calibration in pattern field.
9. a kind of field intensity probe omni-directional calibration method is used for calibration system according to any one of claims 8, which is characterized in that include
Following steps：
Judge that omni-directional calibrates field intensity probe working frequency size；
When working frequency is less than 500MHz, low-frequency calibration method is selected, the low-frequency calibration method is comprised the steps of, given
The room TEM one end connects 50 Ω load；By radio-frequency power from the room other end feed-in TEM；Feed-in net power is measured, standard electric field is calculated
Intensity；Field intensity probe is placed in calibration field, adjustment field intensity probe to ideal position；
When working frequency is greater than 500MHz, high frequency calibration method is selected, the high frequency calibration method comprises the steps of, selects
Take microwave dark room；By radio-frequency power feed-in standard gain antenna；Feed-in net power is measured, standard electric field strength is calculated；It will be described
Standard gain antenna is consistent with the adjustment of field intensity probe height；By field intensity probe along the radial central axes edge of standard gain Antenna aperture
The alignment of line direction；Adjust the standard gain antenna and field intensity probe horizontal distance；
Field intensity probe is rotated a circle around its axle center by identical stepping；
The electric field strength in the case where rotary gap reads each angle；
Calculate field intensity probe omnidirectional sexual deviation.
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| CN114280521A (en) * | 2021-12-23 | 2022-04-05 | 北京森馥科技股份有限公司 | Calibration method and device of electromagnetic field probe, electronic equipment and storage medium |
| CN114706029A (en) * | 2022-03-31 | 2022-07-05 | 中国舰船研究设计中心 | Six-dimensional electric field generator |
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| CN109655689A (en) * | 2018-12-20 | 2019-04-19 | 西北核技术研究所 | A kind of low disturbance support construction for the cell TEM |
| CN109655689B (en) * | 2018-12-20 | 2020-11-17 | 西北核技术研究所 | Low-disturbance supporting structure for TEM cell |
| US11187737B2 (en) | 2019-06-06 | 2021-11-30 | Rohde & Schwarz Gmbh & Co. Kg | System and method for calibrating radio frequency test chambers |
| CN110931936A (en) * | 2019-12-02 | 2020-03-27 | 北京无线电计量测试研究所 | Pole antenna support |
| CN114280521A (en) * | 2021-12-23 | 2022-04-05 | 北京森馥科技股份有限公司 | Calibration method and device of electromagnetic field probe, electronic equipment and storage medium |
| CN114280521B (en) * | 2021-12-23 | 2023-10-31 | 北京森馥科技股份有限公司 | Calibration method and device of electromagnetic field probe, electronic equipment and storage medium |
| CN114706029A (en) * | 2022-03-31 | 2022-07-05 | 中国舰船研究设计中心 | Six-dimensional electric field generator |
| CN114706029B (en) * | 2022-03-31 | 2024-05-28 | 中国舰船研究设计中心 | Six-dimensional electric field generator |
| CN115076530A (en) * | 2022-05-23 | 2022-09-20 | 北京无线电计量测试研究所 | Probe strutting arrangement |
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