CN103926483A - Low-level sweep-frequency current testing system and testing method - Google Patents
Low-level sweep-frequency current testing system and testing method Download PDFInfo
- Publication number
- CN103926483A CN103926483A CN201310675888.4A CN201310675888A CN103926483A CN 103926483 A CN103926483 A CN 103926483A CN 201310675888 A CN201310675888 A CN 201310675888A CN 103926483 A CN103926483 A CN 103926483A
- Authority
- CN
- China
- Prior art keywords
- current
- testing
- low level
- electric field
- low
- 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.)
- Granted
Links
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention provides a low-level sweep-frequency current testing system and a testing method which are used for radiated susceptibility test of an electronic system in an HIRF environment. The testing system is established by adopting an equivalent testing method, consists of a low-level sweep-frequency current main testing portion and a large-current injection main testing portion and comprises an electric field calibration device, a large-current testing device and a current injection device. The electric field calibration device is mainly used for measuring a low-level calibration electric field produced by a transmitting antenna, and a measurement result serves as a basis of BCM wiring harness current normalization. The large-current testing device is mainly used for calibrating sensing current on connected wiring harnessed inside the electronic system stimulated by the calibration electric field. The low-level sweep-frequency current testing system and the testing method can finish HIRF radiated susceptibility testing of larger complicated electronic systems including aircrafts, ships, warships and the like, the sweep-frequency electric field required by the testing is low in level, environmental pollution is low, no harm on testing persons is not produced, and the low-level sweep-frequency current testing system is low in cost and can solve the large-power power amplifier embargo problem.
Description
Technical field
The present invention relates to emc testing technical field, relate to the high strong electromagnetic radiation low level of a kind of electronic system frequency sweep current detecting system and method for testing.
Background technology
Along with scientific and technical development, the electromagnetic environment problem being caused by mankind's activity is more and more serious.Due to the radiation of the high power transmitters such as radar, radio, TV, satellite uplink data, high high radiation field (High Intensity Radiation Fields, HIRF) has become affects aircraft, the naval vessel isoelectronic series safe key factor of uniting.2006, CAAC promulgated information announcing " the high high radiation field of aircraft (HIRF) protection requires ", clearly stipulates that aircraft Airworthiness Certification must pass through HIRF protection Design and test.Aircraft not only, naval vessel, guided missile isoelectronic series system all face HIRF environment.In order to guarantee electronic system safe operation under HIRF, need to carry out the radiosensitivity test under HIRF to electronic system.
Existing electronic system HIRF radiation sensitivity test method mainly comprises the types such as Reverberation room method, the high-power direct irradiation method in outfield.Wherein Reverberation room method can be strong with smaller power generation high field in reverberation chamber, but due to problems such as high-power power amplifier embargoes to China, reverberation chamber produces the limited in one's ability of high field intensity, and be limited to size, in reverberation chamber, be difficult to the large-scale radiosensitivity test for the treatment of examining system machine like flying, naval vessel etc.
The high-power direct irradiation method in outfield is directly with high-power transmitter, to produce high high radiation field in outfield, and electronic system is carried out to radiosensitivity test, the emissive power that the method requires is large, has high, the high-power power amplifier embargo of experimentation cost, environmental pollution and tester is endangered to the deficiencies such as large.
Summary of the invention
For solve existing susceptibility method of testing limitation strong, to environment with to tester, endanger the technological deficiencies such as large, the invention provides a kind of low level frequency sweep current detecting system and method for testing, the radiosensitivity test for electronic system under HIRF environment.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A low level frequency sweep current detecting system, its special character is: comprise signal generation apparatus 1, measure receiving trap 11, emitting antenna 3, field intensity sniffer 4, current testing device 7 and current injection device;
The low level swept-frequency signal that described emitting antenna 3 produces for the generating means 11 that transmits;
Described field intensity sniffer 4 is positioned at selected tested point place, for surveying the low level swept-frequency signal of selected tested point place transmission antennas transmit and result of detection being passed to and measuring receiving trap 11;
Described current testing device 7 is positioned on the cable of system monitoring point to be measured at tested point place, for surveying the induction current of cable, and this induction current is transferred to and measures receiving trap 11;
The low level frequency sweep electric field of 11 pairs of receptions of described measurement receiving trap or induction current is measured and record;
Described current injection device comprises electric current injection part 8 and current monitoring parts 9, and described electric current injection part 8 and current monitoring parts 9 pincers are being treated on examining system cable bundle to be measured.
Above-mentioned test macro also comprises photoemitter 5, and one end of described photoemitter 5 is connected with field intensity sniffer 4 or current testing device 7, and the other end of described photoemitter 5 is connected with measurement receiving trap 11 by optical fiber 2.
Distance between above-mentioned field intensity sniffer 4 range transmission antennas 3 is not less than 1.5 times of system length to be measured.
Distance between above-mentioned current testing device 7 range transmission antennas 3 is not less than 1.5 times of system length to be measured.
Above-mentioned field intensity sniffer 4 is electric field probe, and the height of described electric field probe is identical with the height for the treatment of examining system geometric center lines.
Above-mentioned current testing device 7 is current monitoring probe, and the height of described current monitoring probe is identical with the height for the treatment of examining system geometric center lines.
Distance L 4 between above-mentioned current monitoring parts 9 and system line cable connector 10 to be measured is 50mm, and the distance L 3 between described electric current injection part 8 and current monitoring parts 9 is 50mm.
Above-mentioned signal generation apparatus also comprises automatic control equipment, control, reception and power amplification that described automatic control equipment produces for signal.
Above-mentioned signal generation apparatus and measure receiving trap and be arranged on movably in rack, described rack has safe power supply guard system and the aeration radiation system of unified configuration.
A method of utilizing low level frequency sweep current detecting system to carry out radiosensitivity test, is characterized in that: comprise the following steps:
1] obtain within the scope of certain frequency the relation between signal frequency and electric field intensity and electric current;
2] obtain within the scope of certain frequency the relation between signal frequency and electric current;
3] by step 1] and step 2] relation between electric field intensity and electric current, i.e. coupling coefficient obtained within the scope of certain frequency;
4] by step 3] in the coupling coefficient that obtains, obtain the wire harness induction current on the interconnected wire harness of tested device under specific HIRF field intensity;
5] on interconnected wire harness, by coupling scheme, inject corresponding common mode current, just play the effect that HIRF radiation field is irradiated.
The present invention with respect to the advantage of prior art is:
1, the present invention injects in conjunction with low level frequency sweep testing current and large electric current the low level frequency sweep current detecting system that outfield is built in test, can be with the automatic or automatic HIRF radiosensitivity test that completes the large complicated electronic systems such as aircraft, naval vessel in conjunction with manual mode.Test required frequency sweep electric field level low, environmental pollution is little, and to tester, without harm, and cost of testing system is low, can avoid high-power power amplifier embargo problem.
2, the present invention configures radio frequency photoelectric conversion device, and the radiofrequency signal measuring is transferred to light signal and passes through Optical Fiber Transmission, and the anti-external electromagnetic interference ability of test macro is strong.
4, the present invention, by adopting the mode of automatic test software to realize the automatic control of the equipment such as signal generation and reception, power amplification, switching over, has reduced the manual intervention in test process, has greatly improved testing efficiency and test repeatability.
5, the present invention adopts a plurality of removable rack installation testing equipment, builds test platform.Each rack unified configuration safe power supply guard system and aeration radiation system.Guarantee versatility, portability and the environmental suitability of test macro.
Accompanying drawing explanation
Fig. 1 is low level frequency sweep current detecting system overall architecture;
Fig. 2 is the test configurations figure of electric field calibration;
Fig. 3 is the test configurations figure of BCM;
Fig. 4 is the test configurations figure of BCI;
Wherein: 1-signal generation apparatus, 10-measures receiving trap, 2-optical fiber, 3-emitting antenna, 4-field intensity sniffer, 5-photoemitter, L-emitting antenna is to distance, the 6-electronic system to be measured of field intensity sniffer, 7-current testing device, the distance that L1-emitting antenna is ordered to D, 8-electric current injection part, 9-current monitoring device.
Embodiment
Below specific embodiment of the invention is described further.
The principle that the present invention utilizes low level frequency sweep current detecting system to carry out the radiosensitivity test of electronic system under HIRF environment is:
It is linear that induction current on electronic system interconnected wire harness and extraneous field intensity keep in larger dynamic range.In the frequency range of 0.2～400MHz, it is mainly by field wire coupling scheme that electronic system is disturbed by external electromagnetic field.Be that external electromagnetic field is by treating that drawing of examining system induces electric current on wire harness, from power port, the signal port of system, enter system.Therefore, in this frequency range, can adopt low level electric field to carry out frequency sweep, obtain radiation field intensity and wire harness induction current with the coupling function of frequency change.After the coupling function obtaining between external electrical field and wire harness electric current, by coupling function, can obtain the wire harness induction current on the interconnected wire harness of tested device under different HIRF field intensity, only need on interconnected wire harness, by coupling scheme, inject corresponding common mode current, just play the effect that HIRF radiation field is irradiated.
The present invention adopts the method test system building of equivalence test.The overall architecture of low level frequency sweep current detecting system as shown in Figure 1.Low level frequency sweep current detecting system injects (BCI) test by low level frequency sweep (LLSC) test and large electric current and forms, wherein low level sweep check comprises again electric field calibration and two steps of high-current test (Bulk Current Measurement, BCM).In conjunction with Fig. 1～Fig. 4, describe the specific embodiment of the present invention in detail, but embodiments of the present invention are not limited to this.
1, electric field calibrating installation and test philosophy
Electric field calibrating installation as shown in Figure 2.Electric field calibrating installation comprises signal generation apparatus, measures receiving trap, emitting antenna 3, field intensity sniffer 4.The fundamental purpose of electric field calibration is to measure the low level calibration electric field being sent by emitting antenna, usings this as the normalized foundation of BCM wire harness electric current.
During electric field calibration, emitting antenna, from four different directions, is launched low level frequency sweep electric field according to the mode of horizontal and vertical polarization respectively, utilizes electric field probe to receive this electric field, by measuring receiver or frequency spectrograph record.For preventing that the frequency sweep electric field that emitting antenna produces from impacting measurement result, the electric field that receiving antenna receives transfers light signal to by photoemitter, arrives the measurement receiving trap of proving installation control desk by Optical Fiber Transmission.In the process of electric field calibration, for every kind of position, polarization and the type of emitting antenna, all need to record the forward power of its corresponding electric field strength calibration data and correspondence.The selection of electric field probe height need consider the structure of electronic system and the position of the interior EUT of machine.Generally can select the height of electronic system geometric center lines as H.
Distance between field intensity sniffer range transmission antenna 3 is not less than treats 1.5 times of examining system out to out, its choose according to being that Field strength calibration requires the calibration electric field that emitting antenna produces to change and be no more than 4dB in the scope at electronic system place, the effect of generation is that the resonance effect that can effectively avoid Adjacent Buildings, vegetation or ground return to cause impacts Field strength calibration.
Field intensity sniffer height h basis for selecting: if be distributed in electronic system Internal cable constriction to be measured in a height region, the average height in this region is exactly h, if cable bundle to be measured is evenly distributed, height h elects half of electronic system overall height as.The effect producing is to access LLSC coupling coefficient accurately.If it is improper that h selects, calibration field intensity is just inaccurate, and the coupling coefficient accuracy that normalization obtains cannot be guaranteed.
2, current testing device and test philosophy
The test configurations of current testing device as shown in Figure 3.BCM test fundamental purpose is the induction current on the electronic system interconnected cable bundle of measuring under calibration electric field excitation.
During BCM test, utilize emitting antenna to produce electric field identical when calibrating, use current monitoring probe monitoring wire harness induction current, by photoemitter, transfer radiofrequency signal to light signal, by Optical Fiber Transmission, arrive current measurement receiving trap or the frequency spectrograph of proving installation control desk.
3, current injection device and test philosophy
BCI test configurations as shown in Figure 4.Injection probe and current detecting probe clamp in turn on EUT cable bundle to be measured, and detection probe is apart from EUT connector 50mm, and injection probe is apart from detection probe 50mm.This distance choose according to being with reference to existing EMC testing standard GJB151A and GJB152A, the susceptibility test that wherein wire harness injects is exactly to choose 50mm., the effect producing be can avoid measuring sonde and injection probe place electric current difference excessive, can avoid again injection probe directly to affect measuring sonde.
Radio-frequency current after modulation is injected on cable bundle by injection probe, by detection probe detection line beam current.
For each tested cable bundle, need to produce an induction current with the function curve of frequency change, with the target level injecting as BCI.On LLSC test data basis, carry out appropriate convergent-divergent, reserve certain safe clearance, form target level.
According to field testing feature, configuration several system level damping rack installation testing equipment.Rack has the functions such as good ventilation and heat, damping; Configuration roller is convenient mobile, and rack has the EMC designs such as shielding, ground connection.
Claims (10)
1. a low level frequency sweep current detecting system, is characterized in that: comprise signal generation apparatus (1), measure receiving trap (11), emitting antenna (3), field intensity sniffer (4), current testing device (7) and current injection device;
The low level swept-frequency signal that described emitting antenna (3) produces for the generating means that transmits (11);
Described field intensity sniffer (4) is positioned at selected tested point place, for surveying the low level swept-frequency signal of selected tested point place transmission antennas transmit and result of detection being passed to and measuring receiving trap (11);
Described current testing device (7) is positioned on the cable of system monitoring point to be measured at tested point place, for surveying the induction current of cable, and this induction current is transferred to and measures receiving trap (11);
Described measurement receiving trap (11) is to the low level frequency sweep electric field receiving or induction current is measured and record;
Described current injection device comprises electric current injection part (8) and current monitoring parts (9), and described electric current injection part (8) and current monitoring parts (9) pincers are being treated on examining system cable bundle to be measured.
2. low level frequency sweep current detecting system according to claim 1, it is characterized in that: described test macro also comprises photoemitter (5), one end of described photoemitter (5) is connected with field intensity sniffer (4) or current testing device (7), and the other end of described photoemitter (5) is connected with measurement receiving trap (11) by optical fiber (2).
3. low level frequency sweep current detecting system according to claim 1 and 2, is characterized in that: the distance between described field intensity sniffer (4) range transmission antenna (3) is not less than 1.5 times of system length to be measured.
4. low level frequency sweep current detecting system according to claim 1 and 2, is characterized in that: the distance between described current testing device (7) range transmission antenna (3) is not less than 1.5 times of system length to be measured.
5. low level frequency sweep current detecting system according to claim 3, is characterized in that: described field intensity sniffer (4) is electric field probe, and the height of described electric field probe is identical with the height for the treatment of examining system geometric center lines.
6. low level frequency sweep current detecting system according to claim 4, is characterized in that: described current testing device (7) is current monitoring probe, and the height of described current monitoring probe is identical with the height for the treatment of examining system geometric center lines.
7. low level frequency sweep current detecting system according to claim 1, it is characterized in that: the distance L 4 between described current monitoring parts (9) and system line cable connector to be measured (10) is 50mm, and the distance L 3 between described electric current injection part (8) and current monitoring parts (9) is 50mm.
8. low level frequency sweep current detecting system according to claim 1, is characterized in that: described signal generation apparatus also comprises automatic control equipment, control, reception and power amplification that described automatic control equipment produces for signal.
9. low level frequency sweep current detecting system according to claim 1, it is characterized in that: described signal generation apparatus and measure receiving trap and be arranged on movably in rack, described rack has safe power supply guard system and the aeration radiation system of unified configuration.
10. a method of utilizing low level frequency sweep current detecting system to carry out radiosensitivity test, is characterized in that: comprise the following steps:
1] obtain within the scope of certain frequency the relation between signal frequency and electric field intensity and electric current;
2] obtain within the scope of certain frequency the relation between signal frequency and electric current;
3] by step 1] and step 2] relation between electric field intensity and electric current, i.e. coupling coefficient obtained within the scope of certain frequency;
4] by step 3] in the coupling coefficient that obtains, obtain the wire harness induction current on the interconnected wire harness of tested device under specific HIRF field intensity;
5] on interconnected wire harness, by coupling scheme, inject corresponding common mode current, just play the effect that HIRF radiation field is irradiated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675888.4A CN103926483B (en) | 2013-12-11 | 2013-12-11 | Method for testing radiosensitivity through low-level sweep-frequency current testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675888.4A CN103926483B (en) | 2013-12-11 | 2013-12-11 | Method for testing radiosensitivity through low-level sweep-frequency current testing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103926483A true CN103926483A (en) | 2014-07-16 |
| CN103926483B CN103926483B (en) | 2017-01-18 |
Family
ID=51144776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310675888.4A Active CN103926483B (en) | 2013-12-11 | 2013-12-11 | Method for testing radiosensitivity through low-level sweep-frequency current testing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103926483B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105184108A (en) * | 2015-10-27 | 2015-12-23 | 上海无线电设备研究所 | Composite cabin inner field strength calculation method under HIRF condition |
| CN106093597A (en) * | 2016-05-28 | 2016-11-09 | 河北工业大学 | Utilize the photo-electric electric field near field probes that printed circuit board makes |
| CN106443247A (en) * | 2016-09-08 | 2017-02-22 | 北京航空航天大学 | Method of quickly testing terminal injection currents of all cables in cable bundle |
| CN109655670A (en) * | 2018-11-21 | 2019-04-19 | 上海无线电设备研究所 | The high high radiation field effect test system and test method that low level directly drives |
| CN112114218A (en) * | 2020-09-22 | 2020-12-22 | 上海无线电设备研究所 | High-level test system for HIRF test and verification method |
| CN112345836A (en) * | 2020-11-03 | 2021-02-09 | 中国人民解放军陆军工程大学 | Multi-core cable large-current injection equivalent strong field radiation effect test method and system |
| CN113030591A (en) * | 2021-02-24 | 2021-06-25 | 中国人民解放军陆军工程大学 | Non-shielding multi-core cable coupling channel large-current injection equivalent test method |
| CN113030590A (en) * | 2021-02-24 | 2021-06-25 | 中国人民解放军陆军工程大学 | Large-current injection equivalent substitution irradiation test method for shielded wire coupling channel |
| CN113777421A (en) * | 2021-08-12 | 2021-12-10 | 西安交通大学 | Power line low-frequency radiation immunity testing system and method based on crosstalk injection |
| CN115542065A (en) * | 2022-12-02 | 2022-12-30 | 成都四威功率电子科技有限公司 | External field mobile multi-antenna multi-degree-of-freedom radiation sensitivity testing method and system |
| CN116879664A (en) * | 2023-09-06 | 2023-10-13 | 合肥航太电物理技术有限公司 | Low-level direct drive testing device and testing method for high-intensity radiation field |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191806A (en) * | 2006-11-29 | 2008-06-04 | 比亚迪股份有限公司 | Apparatus and method for testing automobile electromagnetic sensitivity |
| CN101813732A (en) * | 2010-05-10 | 2010-08-25 | 中国人民解放军理工大学 | Shielding effectiveness testing system for near-zone low-frequency strong magnetic field and testing method thereof |
| JP2011257199A (en) * | 2010-06-07 | 2011-12-22 | Nec Corp | Microwave irradiation testing device, and irradiation testing method and irradiation testing program used in the testing device |
| DE102011084983A1 (en) * | 2011-10-21 | 2013-04-25 | Robert Bosch Gmbh | Method for testing immunity of electrical or electronic device, particularly control device for motor vehicles, involves supplying interference signal by electrical or electronic device |
| CN103336192A (en) * | 2013-06-04 | 2013-10-02 | 上海无线电设备研究所 | A low-level scanning current testing system for an aircraft whole body |
| CN203643531U (en) * | 2013-12-11 | 2014-06-11 | 陕西海泰电子有限责任公司 | Low-level frequency sweep current test system |
-
2013
- 2013-12-11 CN CN201310675888.4A patent/CN103926483B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191806A (en) * | 2006-11-29 | 2008-06-04 | 比亚迪股份有限公司 | Apparatus and method for testing automobile electromagnetic sensitivity |
| CN101813732A (en) * | 2010-05-10 | 2010-08-25 | 中国人民解放军理工大学 | Shielding effectiveness testing system for near-zone low-frequency strong magnetic field and testing method thereof |
| JP2011257199A (en) * | 2010-06-07 | 2011-12-22 | Nec Corp | Microwave irradiation testing device, and irradiation testing method and irradiation testing program used in the testing device |
| DE102011084983A1 (en) * | 2011-10-21 | 2013-04-25 | Robert Bosch Gmbh | Method for testing immunity of electrical or electronic device, particularly control device for motor vehicles, involves supplying interference signal by electrical or electronic device |
| CN103336192A (en) * | 2013-06-04 | 2013-10-02 | 上海无线电设备研究所 | A low-level scanning current testing system for an aircraft whole body |
| CN203643531U (en) * | 2013-12-11 | 2014-06-11 | 陕西海泰电子有限责任公司 | Low-level frequency sweep current test system |
Non-Patent Citations (2)
| Title |
|---|
| 胡平道: "低电平耦合技术在飞机级试验中的应用", 《微波学报》 * |
| 陈奇平等: "整机雷电间接效应防护试验的若干技术探讨", 《微波学报》 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105184108A (en) * | 2015-10-27 | 2015-12-23 | 上海无线电设备研究所 | Composite cabin inner field strength calculation method under HIRF condition |
| CN106093597A (en) * | 2016-05-28 | 2016-11-09 | 河北工业大学 | Utilize the photo-electric electric field near field probes that printed circuit board makes |
| CN106093597B (en) * | 2016-05-28 | 2018-08-17 | 河北工业大学 | The photo-electric electric field near field probes made using printed circuit board |
| CN106443247B (en) * | 2016-09-08 | 2019-08-20 | 北京航空航天大学 | A kind of method of the terminal Injection Current of each cable of quick test cable bundle |
| CN106443247A (en) * | 2016-09-08 | 2017-02-22 | 北京航空航天大学 | Method of quickly testing terminal injection currents of all cables in cable bundle |
| CN109655670B (en) * | 2018-11-21 | 2021-04-02 | 上海无线电设备研究所 | Low-level direct-drive high-intensity radiation field effect test system and test method |
| CN109655670A (en) * | 2018-11-21 | 2019-04-19 | 上海无线电设备研究所 | The high high radiation field effect test system and test method that low level directly drives |
| CN112114218A (en) * | 2020-09-22 | 2020-12-22 | 上海无线电设备研究所 | High-level test system for HIRF test and verification method |
| CN112114218B (en) * | 2020-09-22 | 2024-02-23 | 上海无线电设备研究所 | High-level test system for HIRF test and verification method |
| CN112345836A (en) * | 2020-11-03 | 2021-02-09 | 中国人民解放军陆军工程大学 | Multi-core cable large-current injection equivalent strong field radiation effect test method and system |
| CN112345836B (en) * | 2020-11-03 | 2022-11-01 | 中国人民解放军陆军工程大学 | Multi-core cable large-current injection equivalent strong field radiation effect test method and system |
| CN113030591A (en) * | 2021-02-24 | 2021-06-25 | 中国人民解放军陆军工程大学 | Non-shielding multi-core cable coupling channel large-current injection equivalent test method |
| CN113030590A (en) * | 2021-02-24 | 2021-06-25 | 中国人民解放军陆军工程大学 | Large-current injection equivalent substitution irradiation test method for shielded wire coupling channel |
| CN113777421A (en) * | 2021-08-12 | 2021-12-10 | 西安交通大学 | Power line low-frequency radiation immunity testing system and method based on crosstalk injection |
| CN113777421B (en) * | 2021-08-12 | 2022-10-25 | 西安交通大学 | Power line low-frequency radiation immunity testing system and method based on crosstalk injection |
| CN115542065A (en) * | 2022-12-02 | 2022-12-30 | 成都四威功率电子科技有限公司 | External field mobile multi-antenna multi-degree-of-freedom radiation sensitivity testing method and system |
| CN116879664A (en) * | 2023-09-06 | 2023-10-13 | 合肥航太电物理技术有限公司 | Low-level direct drive testing device and testing method for high-intensity radiation field |
| CN116879664B (en) * | 2023-09-06 | 2023-11-24 | 合肥航太电物理技术有限公司 | Low-level direct drive testing device and testing method for high-intensity radiation field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103926483B (en) | 2017-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103926483A (en) | Low-level sweep-frequency current testing system and testing method | |
| CN103630777A (en) | Electric equipment shielding effectiveness test system and method | |
| CN102426310B (en) | Novel full aircraft high-strength irradiation test method | |
| CN105823935A (en) | Device and method for field uniformity testing of semi-anechoic chamber | |
| CN103731219B (en) | A kind of bluetooth end properties method of testing and system | |
| CN205608094U (en) | Semi -anechoic chamber field uniformity testing arrangement | |
| CN107179449B (en) | A kind of short-wave receiving antenna 3 D stereo directional diagram aerial mobile measuring system and method | |
| CN109655670B (en) | Low-level direct-drive high-intensity radiation field effect test system and test method | |
| CN104849592B (en) | A kind of radio telescope wideband electromagnetic shield effectiveness detection system and detection method | |
| KR101939757B1 (en) | System for measuring performance of antenna | |
| CN103336192A (en) | A low-level scanning current testing system for an aircraft whole body | |
| CN203643531U (en) | Low-level frequency sweep current test system | |
| CN108271188A (en) | The test system and test method of wireless router WiFi performances | |
| CN206848464U (en) | Portable navigation management secondary radar signal near-field/far-field detector | |
| CN106330348A (en) | Method and device for testing stray radiant power of wireless product | |
| CN203643528U (en) | System for testing shielding effectiveness of electronic equipment | |
| CN204789774U (en) | Antenna directivity diagram plane near field scanning test equipment | |
| US20140203977A1 (en) | Monitoring method and system and integrated monitoring device for antenna oscillator of base station | |
| CN109655671A (en) | Low level scans the high high radiation field effect test system and test method of electric current | |
| CN102944797A (en) | Method for measuring coupling degree of antennas | |
| CN106680841A (en) | Method for detecting short message communication performance of Beidou first-generation user machine in external field | |
| CN204613328U (en) | A kind of radio telescope wideband electromagnetic shield effectiveness detection system | |
| CN103983937A (en) | Signal detection system applied to anechoic chamber | |
| CN203894401U (en) | Signal detection system applied to electric wave darkroom | |
| CN109254207A (en) | A kind of cable electromagnetic radiation analysis method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |