CN108205117A - A kind of Magnetic susceptibility test device for meeting DO-160G standards - Google Patents
A kind of Magnetic susceptibility test device for meeting DO-160G standards Download PDFInfo
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- CN108205117A CN108205117A CN201711373622.9A CN201711373622A CN108205117A CN 108205117 A CN108205117 A CN 108205117A CN 201711373622 A CN201711373622 A CN 201711373622A CN 108205117 A CN108205117 A CN 108205117A
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- conducting wire
- power amplifier
- test
- magnetic susceptibility
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/007—Environmental aspects, e.g. temperature variations, radiation, stray fields
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Toxicology (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention belongs to electronic equipment Magnetic susceptibility test methods.A kind of Magnetic susceptibility test device for meeting DO 160G standards is provided, including：Signal generator (S 1), power amplifier (S 2), conducting wire (S 3), resistance (S 4), voltmeter (S 5)；Signal generator (S 1) is generating the audio electrical signal of test request；Power amplifier (S 2) is amplified audio electrical signal processing to reach the electric current of test class requirement；Power amplifier (S 2) output terminal external wire (S 3) one end, the conducting wire (S 3) is with rectangle closely around as N circles, conducting wire (S 3) side is no more than first threshold with tested interconnection cable parallel arrangement and maximum distance, conducting wire (S 3) is L close to a side length of tested interconnection cable, conductor spacing equipment under test and load minimum distance are not less than second threshold, another termination power amplifier (S 2) input terminal of conducting wire (S 3)；Straight-flanked ring is connected a resistance (S 4) between conducting wire and power amplifier, one voltmeter (S 5) of resistance (S 4) both ends parallel connection, to monitor the current value by conducting wire.
Description
Technical field
The invention belongs to electronic equipment Magnetic susceptibility test methods.
Background technology
DO-160 full name are《Airborne equipment environmental condition and test program》, it is American Aeronautical Radio Technical Committee
What RTCA initiated to formulate is directed to the requirement of aircraft onboard avionic device working environment adaptability and corresponding experimental test
The normative document of program technic.The standard is after multiple revision since 1975 come out, and latest edition is hair in 2010 at present
The DO-160G versions of cloth.The standard is adopted by the more aiMonhiness authorities including Federal Aviation management board FAA, extensively
Formulation and test applied to aircraft Aerial Electronic Equipment environmental condition.
Audio frequency magnetic field susceptibility test belongs to one of frequency induction signal susceptibility test as defined in DO-160G standards
Point.The purpose is to examine equipment under test in the case where working environment is there are certain grade magnetic field, meet functional performance index into
The ability of row work.
It is required according to DO-160G, audio frequency magnetic field susceptibility test needs using an AC power to generate needed for test
Magnetic field environment.Standard such as frequency and output current, has higher requirements for the performance of this AC power.For specific severity
The equipment under test of grade, it may be necessary to which output current is more than 40 amperes, and frequency range is from 350Hz to 32KHz.Due to China
Do not have the ability that production reaches the power supply of such working performance still, and there are expensive, export techniques limits for import power supply
The problems such as system form many restrictions and limitation to carrying out this test at home.Due to this, the current country only has
Only a few profession EMC test room has the ability for carrying out this experiment.
Invention content
The purpose of the present invention is：A kind of Magnetic susceptibility test device for meeting DO-160G standards is provided, with reduce for
The requirement of test equipment working performance reduces testing cost, improves the availability of test.
The technical scheme is that：
A kind of Magnetic susceptibility test device for meeting DO-160G standards, including：
Signal generator (S-1), power amplifier (S-2), conducting wire (S-3), resistance (S-4), voltmeter (S-5)；
Signal generator (S-1) is generating the audio electrical signal of test request；
Power amplifier (S-2) is amplified audio electrical signal processing to reach the electric current of test class requirement；
Power amplifier (S-2) output terminal external wire (S-3) one end, the conducting wire (S-3) are closely encompassed with rectangle
For N circles, conducting wire (S-3) side is no more than first threshold with tested interconnection cable parallel arrangement and maximum distance, and conducting wire (S-3) leans on
One side length of nearly tested interconnection cable is L, and conductor spacing equipment under test and load minimum distance are not less than second threshold, conducting wire
(S-3) another termination power amplifier (S-2) input terminal；
Straight-flanked ring is connected a resistance (S-4) between conducting wire and power amplifier, one voltage of resistance (S-4) both ends parallel connection
Table (S-5), to monitor the current value by conducting wire；
N takes the natural number more than 1 and no more than 10.
L is according to equipment under test grade according to DO-160G standard settings.
First threshold is 5 millimeters；Second threshold is 0.15 meter.
It is an advantage of the invention that：The present invention is surround using multiturn coil substitutes solid conductor as interference source, full generating
While the Equivalent Magnetic Field intensity of sufficient test request, the requirement for testing system power supply power supply performance is reduced, is advantageously reduced
Testing cost improves the availability of test.
Description of the drawings
Fig. 1 is testing equipment and the company of the audio frequency magnetic field susceptibility test proposed by the present invention for meeting DO-160G standards
Connect relational graph.
Specific embodiment
The present invention is described in further details below.The present invention is for the audio magnetic for meeting the requirement of DO-160G standards
Field sensitive degree test method Curve guide impeller.Testing equipment as shown in Figure 1, including：
Signal generator S-1, power amplifier S-2, conducting wire S-3, resistance S-4, voltmeter S-5；
Signal generator S-1 is connect with power amplifier S-2, to generate the audio electrical signal of test request；
Power amplifier S-2 is connect with conducting wire S-3 one end, and processing is amplified to audio electrical signal to reach test grade
It is required that electric current；
Power amplifier S-2 output terminal external wire S-3 one end,
The conducting wire S-3 is encompassed with rectangle as N circles as shown in Figure 1, and N takes the natural number more than 1 and no more than 10, N circles
Conducting wire answers gapless closely to arrange.The side of conducting wire S-3 and tested interconnection cable parallel arrangement is the conducting wire for testing field strength,
And it is no more than first threshold with tested interconnection cable maximum distance, the first threshold is preferably 5 millimeters, and conducting wire S-3 is close to quilt
The side length for surveying interconnection cable is L, and L is according to equipment under test grade according to DO-160G standard settings.Conductor spacing equipment under test
And load minimum distance, not less than second threshold, second threshold is preferably 0.15 meter.Another termination power amplifier S- of conducting wire S-3
2 input terminals；Conducting wire long back gauge opposite side of the conducting wire S-3 far from tested cable is not less than 1 meter.Straight-flanked ring is around conducting wire and power amplification
Connect a resistance S-4, one voltmeter S-5 of resistance S-4 both ends parallel connection, to monitor the current value by conducting wire between device；
In experimental test, setting signal generator generates the signal of test class requirement frequency, and adjusting power amplifier makes
Conducting wire by electric current for standard require (solid conductor is used to be used as interference source) 1/N, equipment under test is observed at this time,
Check whether it meets performance requirement standard.Regulate signal frequency, more than whole frequency ranges of test class requirement repeat
Step determines equipment under test in the Magnetic susceptibility characteristic for all requiring frequency range.
Claims (4)
1. a kind of Magnetic susceptibility test device for meeting DO-160G standards, which is characterized in that including：
Signal generator (S-1), power amplifier (S-2), conducting wire (S-3), resistance (S-4), voltmeter (S-5)；
Signal generator (S-1) is generating the audio electrical signal of test request；
Power amplifier (S-2) is amplified audio electrical signal processing to reach the electric current of test class requirement；
Power amplifier (S-2) output terminal external wire (S-3) one end, the conducting wire (S-3) is with rectangle closely around as N
Circle, conducting wire (S-3) side are no more than first threshold with tested interconnection cable parallel arrangement and maximum distance, and conducting wire (S-3) is close
One side length of tested interconnection cable is L, and conductor spacing equipment under test and load minimum distance are not less than second threshold, conducting wire
(S-3) another termination power amplifier (S-2) input terminal；
Straight-flanked ring is connected a resistance (S-4) between conducting wire and power amplifier, one voltmeter of resistance (S-4) both ends parallel connection
(S-5), monitoring the current value by conducting wire.
2. a kind of Magnetic susceptibility test device for meeting DO-160G standards as described in claim 1, which is characterized in that N takes
Natural number more than 1 and no more than 10.
A kind of 3. Magnetic susceptibility test device for meeting DO-160G standards as described in claim 1, which is characterized in that L roots
According to equipment under test grade according to DO-160G standard settings.
4. a kind of Magnetic susceptibility test device for meeting DO-160G standards as described in claim 1, which is characterized in that the
One threshold value is 5 millimeters；Second threshold is 0.15 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711373622.9A CN108205117A (en) | 2017-12-20 | 2017-12-20 | A kind of Magnetic susceptibility test device for meeting DO-160G standards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711373622.9A CN108205117A (en) | 2017-12-20 | 2017-12-20 | A kind of Magnetic susceptibility test device for meeting DO-160G standards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108205117A true CN108205117A (en) | 2018-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711373622.9A Pending CN108205117A (en) | 2017-12-20 | 2017-12-20 | A kind of Magnetic susceptibility test device for meeting DO-160G standards |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354413A (en) * | 2021-12-16 | 2022-04-15 | 惠州市金山电子有限公司 | Lead wire life tester, lead wire life testing system and lead wire life testing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10234537A1 (en) * | 2002-07-30 | 2004-02-19 | Hagenuk KMT Kabelmeßtechnik GmbH | Method and device for locating cable sleeves and cable faults in installed cables |
| 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 |
| CN201673215U (en) * | 2010-04-12 | 2010-12-15 | 西安爱邦电磁技术有限责任公司 | Device used for testing sensitivity of audio frequency magnetic field |
| CN203929946U (en) * | 2014-06-30 | 2014-11-05 | 中国航空无线电电子研究所 | A kind of interconnecting cable induced field test device |
| CN105376688A (en) * | 2015-11-24 | 2016-03-02 | 深圳市航电技术研究院 | Power line audio conduction sensitivity testing mode switching device for airborne equipment |
-
2017
- 2017-12-20 CN CN201711373622.9A patent/CN108205117A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10234537A1 (en) * | 2002-07-30 | 2004-02-19 | Hagenuk KMT Kabelmeßtechnik GmbH | Method and device for locating cable sleeves and cable faults in installed cables |
| 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 |
| CN201673215U (en) * | 2010-04-12 | 2010-12-15 | 西安爱邦电磁技术有限责任公司 | Device used for testing sensitivity of audio frequency magnetic field |
| CN203929946U (en) * | 2014-06-30 | 2014-11-05 | 中国航空无线电电子研究所 | A kind of interconnecting cable induced field test device |
| CN105376688A (en) * | 2015-11-24 | 2016-03-02 | 深圳市航电技术研究院 | Power line audio conduction sensitivity testing mode switching device for airborne equipment |
Non-Patent Citations (2)
| Title |
|---|
| RTCA: "《Environmental Conditions and Test RTCA DO-160G》", 6 December 2010 * |
| 贾凡: ""C919 电传飞控***辐射发射测试案例分析"", 《测控技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354413A (en) * | 2021-12-16 | 2022-04-15 | 惠州市金山电子有限公司 | Lead wire life tester, lead wire life testing system and lead wire life testing method |
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Application publication date: 20180626 |