CN202093099U - Building and structure lightning shielding effectiveness test device - Google Patents
Building and structure lightning shielding effectiveness test device Download PDFInfo
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- CN202093099U CN202093099U CN2011200720930U CN201120072093U CN202093099U CN 202093099 U CN202093099 U CN 202093099U CN 2011200720930 U CN2011200720930 U CN 2011200720930U CN 201120072093 U CN201120072093 U CN 201120072093U CN 202093099 U CN202093099 U CN 202093099U
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Abstract
The utility model discloses a building and structure lightning shielding effectiveness test device which mainly comprises a lightning current generator, a magnetic field antenna and a magnetic field measuring system. The lightning current generator can simulate to produce 20kV1.2/50mus and 40kA8/20mus lightning impact waveforms, and emits a lightning pulse magnetic field into a building or a structure to be tested through the magnetic field antenna; the magnetic field measuring system automatically collects the waveforms and calculates the lightning shielding effectiveness of the building or the structure by measuring the magnetic field intensity inside and outside the building or the structure in a fixed distance; all the data and waveforms are automatically collected and stored in a computer; and the test device has the advantages of small size, light weight, convenience in carrying, mobility to the site for a test and the like, and can solve the problem of the quantitative testing to the building and structure lightning shielding effectiveness.
Description
Technical field
This novel practical belongs to the electrical engineering technical field, particularly a kind of construction of structures lightning shielding performance testing device.
Background technology
GB50057-2000 " Code for design of lightning protection of buildings " has provided the computing formula of shielding of building usefulness in the anti-lightning strike electromagnetic pulse of chapter 6, estimate an important parameter of building lightning protection design during the shielding of building effect test, construction of structures lightning shielding usefulness measurement mechanism for want of in the real process, the shield effectiveness of there be limited evidence currently of field survey buildings, generally all be to estimate by correlation formula, and the different construction of structures structures of field survey have significant values to the influence of lightning shielding usefulness, and the raising of building lightning protection design is also had very big impetus.
The utility model content
The purpose of this utility model is exactly the deficiency at the above-mentioned background technology, and a kind of construction of structures lightning shielding performance testing device is provided.
The technical solution of the utility model is: a kind of construction of structures lightning shielding performance testing device is characterized in that comprising lightning current generator, magnetic field antenna, magnetic field measurement system; Wherein:
Described lightning current generator single chip control module (control system), high-voltage DC power supply (charge power supply) and major loop (generator major loop) constitute, single chip control module is connected with major loop with high-voltage DC power supply respectively by umbilical cable, and high-voltage DC power supply links to each other with major loop;
Described magnetic field measurement system is made of magnetic field sensor, lighting current sensor, oscillograph and the computing machine that has based on the measurement control software of Labview programming, magnetic field sensor is connected with oscillograph by concentric cable respectively with lighting current sensor, and oscillograph then is connected with computing machine by USB cable;
The output terminal of described lightning current generator major loop directly links to each other with magnetic field antenna, and the lighting current sensor in the magnetic field measurement system links to each other with the major loop noncontact.
Have as optimal way of the present utility model:
1, described lightning current generator: its single chip control module comprises touch man-machine interface operational module and analog-to-digital conversion module; Its high-voltage DC power supply comprises the I.F.T. rectification module that boosts, and the highest output dc voltage value is 20kV; Its major loop comprises high-pressure mercury switch, main capacitor, harmonic inductance and wave regulating resistor, and main capacitor is the high energy storage density pulser.
2, described lightning current generator: the lightning impulse voltage waveform of its output is 20kV 1.2/50 μ s; The lightning impulse current waveform of its output is 40kA 8/20 μ s.
3, in the described magnetic field measurement system: its magnetic field sensor adopts field coil; Its lighting current sensor adopts current coil; Its oscillograph adopts digital oscilloscope.
The utility model is in actual use: produce lightning impulse voltage and lightning current by the lightning current generator, by magnetic field antenna to emission lightening pulse magnetic field in the construction of structures to be measured, magnetic field measurement system is gathered institute's measuring magnetic field waveform, current waveform automatically and is stored in the computing machine by the magnetic field intensity inside and outside its field coil measurement same distance buildings and by its computing machine, calculates shielding of building usefulness automatically.
The lightning current generator comprises single chip control module, high-voltage DC power supply, major loop.Its single chip control module: adopt mcu programming control, the precision maneuver of control high-pressure mercury switch, contactor etc.; Adopt touch screen human-computer interface to carry out visualized operation, simple to operate, the operation interface close friend; Adopting analog-to-digital conversion module demonstration to be measured (voltage, electric current etc.) sends back in the single-chip microcomputer for screen displaying and protection action judgement (as overvoltage protection, overcurrent protection etc.); The whole control system is placed in the airtight can, and shield effectiveness is good, and control system is reliable and stable.Its high-voltage DC power supply: adopt the I.F.T. rectification of boosting; Have advantages such as volume is little, in light weight; The highest exportable 20kV high direct voltage, polarity of voltage can be regulated.Its major loop comprises high-pressure mercury switch, main capacitor, harmonic inductance and wave regulating resistor; The high-pressure mercury switch has that speed is fast, volume is little and advantage such as noiseless; Main capacitor adopts the high energy storage density impulse capacitor, makes medium with metallized polypropylene film, the high voltage insulating materials sealing, have that electrical property is good, good reliability, high temperature resistant, volume is little, capacity is big and good self-healing performance.
Magnetic field measurement system comprises magnetic field sensor, lighting current sensor, oscillograph and computing machine.Magnetic field sensor and lighting current sensor are measured magnetic field intensity signal and the lightning current signals that the lightning current generator produces respectively, the two-way sensor is received in the oscillograph by concentric cable and is gathered, computing machine is connected with oscillograph by USB cable, and synchronous data sampling in the oscillograph is analyzed and preserved in computing machine.Computing machine has the measurement control software based on Labview programming, and it has functions such as data acquisition, storage and analysis, and is intelligent, automaticity is high.
The utlity model has volume little, in light weight, be easy to carry, intelligent degree advantages of higher, detecting for construction of structures lightning Protection Design, lightning protection properties are on-the-spot provides good proving installation.
Description of drawings
Fig. 1 is the bulk loop figure of test unit;
Fig. 2 is the circuit diagram of lightning current generator;
Fig. 3 is the magnetic field measurement system synoptic diagram;
Fig. 4 is the computer measurement program interface;
Among the figure:
1-lightning current generator:
1.1-single chip control module, 1.2-high-voltage DC power supply, 1.3-major loop;
The 2-magnetic field antenna;
The 3-magnetic field measurement system:
3.1-magnetic field sensor, 3.2-lighting current sensor, 3.3-oscillograph, 3.4-computing machine;
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawing illustrated embodiment:
Lightning current generator (1) produces lightning impulse voltage and lightning current, by magnetic field antenna (2) to be measuredly build, emission lightening pulse magnetic field in the structures, magnetic field measurement system (3) is measured the inside and outside magnetic field intensity of same distance buildings by field coil (3.1), computing machine is gathered institute's measuring magnetic field waveform, current waveform automatically and is stored in the computing machine, calculates construction of structures lightning shielding usefulness automatically.
Lightning current generator (1) is mainly by single chip control module (1.1), high-voltage DC power supply (1.2), major loop (1.3) is formed, single chip control module (1.1) adopts mcu programming control, the precision maneuver of control high-pressure mercury switch, contactor etc., man-machine interface adopts touch-screen to carry out visualized operation, and is simple to operate, the operation interface close friend.Analog-to-digital conversion module is measured demonstration in (voltage, electric current etc.) and is sent back in the single-chip microcomputer for screen displaying and protection action judgement (as overvoltage protection, overcurrent protection etc.); The whole control system is placed in the airtight can; shield effectiveness is good, and control system is reliable and stable.High-voltage DC power supply (1.2) adopts the I.F.T. rectification of boosting, and it has advantages such as volume is little, in light weight, the highest exportable 20kV high direct voltage, and polarity of voltage can be transferred.Major loop (1.3) is made up of high-pressure mercury switch, main capacitor, harmonic inductance and wave regulating resistor, the high-pressure mercury switch has that speed is fast, volume is little and advantage such as noiseless, main capacitor adopts the high energy storage density impulse capacitor, its adopts metallized polypropylene film to make medium, the high voltage insulating materials sealing has that electrical property is good, good reliability, high temperature resistant, volume is little, capacity is big and good self-healing performance.Magnetic field measurement system (3) is made up of magnetic field sensor (3.1), lighting current sensor (3.2), oscillograph (3.3) and computer measurement program (3.4), magnetic field sensor and lighting current sensor are measured magnetic field intensity signal and the lightning current signals that lightning current generator (1) produces respectively, the two-way sensor is received in the oscillograph (3.3) by concentric cable and is gathered, computing machine (3.4) is connected with oscillograph (3.3) by USB cable, and synchronous data sampling in the oscillograph is analyzed and preserved in computing machine.Computing machine (3.4) has the measurement control software that comprises Labview programming, and it has functions such as data acquisition, storage and analysis, and is intelligent, automaticity is high.
Claims (4)
1. a construction of structures lightning shielding performance testing device is characterized in that comprising lightning current generator (1), magnetic field antenna (2), magnetic field measurement system (3); Wherein:
Described lightning current generator is made of single chip control module (1.1), high-voltage DC power supply (1.2) and major loop (1.3), single chip control module (1.1) is connected with major loop (1.3) with high-voltage DC power supply (1.2) respectively by umbilical cable, and high-voltage DC power supply (1.2) links to each other with major loop (1.3);
Described magnetic field measurement system (3) is made of magnetic field sensor (3.1), lighting current sensor (3.2), oscillograph (3.3) and the computing machine (3.4) that has based on the measurement control software of Labview programming, magnetic field sensor (3.1) is connected with oscillograph (3.3) by concentric cable respectively with lighting current sensor (3.2), and oscillograph (3.3) then is connected with computing machine (3.4) by USB cable;
The output terminal of described lightning current generator major loop (1.3) directly links to each other with magnetic field antenna (2), and the lighting current sensor (3.2) in the magnetic field measurement system (3) links to each other with major loop (1.3) noncontact.
2. a kind of construction of structures lightning shielding performance testing device according to claim 1 is characterized in that:
Described lightning current generator (1): its single chip control module (1.1) comprises touch man-machine interface operational module and analog-to-digital conversion module; Its high-voltage DC power supply (1.2) comprises the I.F.T. rectification module that boosts, and the highest output dc voltage value is 20kV; Its major loop (1.3) comprises high-pressure mercury switch, main capacitor, harmonic inductance and wave regulating resistor, and main capacitor is the high energy storage density pulser.
3. a kind of construction of structures lightning shielding performance testing device according to claim 1 and 2 is characterized in that:
Described lightning current generator (1): the lightning impulse voltage waveform of its output is 20kV 1.2/50 μ s; The lightning impulse current waveform of its output is 40kA 8/20 μ s.
4. a kind of construction of structures lightning shielding performance testing device according to claim 1 and 2 is characterized in that:
In the described magnetic field measurement system (3): its magnetic field sensor (3.1) adopts field coil; Its lighting current sensor (3.2) adopts current coil; Its oscillograph (3.3) adopts digital storage oscilloscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200720930U CN202093099U (en) | 2011-03-18 | 2011-03-18 | Building and structure lightning shielding effectiveness test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200720930U CN202093099U (en) | 2011-03-18 | 2011-03-18 | Building and structure lightning shielding effectiveness test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202093099U true CN202093099U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200720930U Expired - Lifetime CN202093099U (en) | 2011-03-18 | 2011-03-18 | Building and structure lightning shielding effectiveness test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202093099U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101800A (en) * | 2014-06-17 | 2014-10-15 | 北京大泽科技有限公司 | Handheld shielding effectiveness detection instrument |
| CN104865468A (en) * | 2015-05-15 | 2015-08-26 | 中国人民解放军理工大学 | Device and method for measuring shielding effectiveness of electromagnetic pulse of thunder and lightning |
| CN110018376A (en) * | 2019-05-08 | 2019-07-16 | 南华大学 | A kind of carbon fibre composite thunder and lightning measurement of electromagnetic environment device and method |
-
2011
- 2011-03-18 CN CN2011200720930U patent/CN202093099U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101800A (en) * | 2014-06-17 | 2014-10-15 | 北京大泽科技有限公司 | Handheld shielding effectiveness detection instrument |
| CN104865468A (en) * | 2015-05-15 | 2015-08-26 | 中国人民解放军理工大学 | Device and method for measuring shielding effectiveness of electromagnetic pulse of thunder and lightning |
| CN104865468B (en) * | 2015-05-15 | 2017-12-05 | 中国人民解放军理工大学 | Lightning Electromagnetic Pulse shield effectiveness measurement apparatus and method |
| CN110018376A (en) * | 2019-05-08 | 2019-07-16 | 南华大学 | A kind of carbon fibre composite thunder and lightning measurement of electromagnetic environment device and method |
| CN110018376B (en) * | 2019-05-08 | 2021-05-28 | 南华大学 | Device and method for testing lightning electromagnetic environment of carbon fiber composite material |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |