CN103792437A - Integrated LEMP three-dimensional electric field measuring instrument - Google Patents
Integrated LEMP three-dimensional electric field measuring instrument Download PDFInfo
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Abstract
The invention discloses an integrated LEMP three-dimensional electric field measuring instrument which comprises a planar antenna, an integrated shielding case, a signal conditioning module, an embedded digitization module, a GPS time service module, a local storage module, a mounting support frame and the like. The planar antenna is a PCB copper-clad plate. The integrated shielding case provides reliable mechanics support for the planar antenna, and the signal conditioning module and the embedded digitization module are both arranged inside the integrated shielding case. The signal conditioning module achieves the function of impedance matching of induced electric field signals, the function of integral amplification, the function of nonlinear transformation and the like. The embedded digitization module achieves waveform digitization and localization storage. According to a time-domain calibrated amplitude calibration coefficient and a transfer function calibration coefficient, the electric field change waveform digital quantity is converted into a physical quantity to be compensated and corrected. Further, waveform characteristic value information is extracted, and remote transmission of data information is achieved through a wireless communication module.
Description
Technical field
The present invention relates to a kind of Lightning Electromagnetic Pulse (LEMP) three-dimensional measuring apparatus, be particularly useful for obtaining the device of the full detail (containing vertical electric field, horizontal component of electric field and electrostatic field) of thunder and lightning electric field change in thunder and lightning situation.
Background technology
Thunder and lightning is that the one in natural atmosphere is superpower, overlength electric discharge phenomena, the electromagnetic radiation producing is LEMP, Aeronautics and Astronautics, communication and all electric, the electronic equipment take microelectronic component as basis or system can be formed severe jamming so that be damaged, even cause crushing damage.Therefore, grasp electric field change feature and the rule of development that thunder discharge process produces is to reduce the basis of thunder disaster comprehensively.Each thunder discharge process comprises a series of subprocess, shows as multi-form pulse on electric field change waveform character.Research thunder discharge process different phase LEMP electric field pulse feature is to disclose the important prerequisite of thunder discharge physical process; On the other hand, the observation to LEMP electric field change waveform and modeling are also the important foundations of research electronics, electrical equipment and system electromagnetic protection and coupling effect assessment.
LEMP electric field comprises two components, i.e. vertical electric field and horizontal component of electric field.But the current observation to thunder discharge radiation generation electric field is mainly confined to vertical electric field, lacks observation and the modeling of thunder discharge radiated electric field variation comprehensive information.Early, measuring technique is comparatively ripe in the research starting of vertical electric field.Before a century, the variation waveform of ground vertical electric field when Wilson just utilizes capillary electrometer observation thunder and lightning to occur.Nineteen sixty Kitagawa and Brook propose to record the vertical electric field variation that thunder and lightning produces, " soon ", " slowly " thunder and lightning electric field change measuring instrument that Here it is uses till today always with the lightning electric field measurement apparatus of two kinds of different time constants first.Patent (publication number 101963634A) proposes the time constant conversion method based on transport function, realized the integrated measuring of " soon ", " slowly " thunder and lightning electric field change.Compared with vertical electric field, the measuring technique of horizontal component of electric field develops hysteresis, measures first horizontal component of electric field so far from Thomson in 1988 etc., about the document of LEMP horizontal component of electric field measurement data less than 10 pieces.Meanwhile, because these measured datas come from respectively the U.S., Australia, Brazil and Japanese, measure the physical environment in place and the physical characteristics of thunder and lightning itself not identical, the data deficiency comparability recording.For horizontal component of electric field and vertical survey time, measure, except Thomson etc. was after reporting once in 1988, just again without below.Because its sensor outer housing adopts spherical structure, make antenna structure complexity, thereby be difficult to guarantee antenna symmetry and be not easy to install set up.In the time of actual observation, adopt the built on stilts mode that hangs spherical structure antenna of pvc pipe, vertical electric field is than large two orders of magnitude of horizontal component of electric field, and the little by little inclination angle of sensor all can make vertical electric field coupling influence horizontal component of electric field, thereby affects the measuring accuracy of horizontal component of electric field.
From the situation of current Lightning Electromagnetic Pulse electric field change observation and data analysis, there are following two aspect problems:
On the one hand, lack the observation and analysis to thunder discharge process electric field change comprehensive information.The electric wire and cable that Near Ground lays mostly is horizontal direction, and the LEMP of horizontal polarization easily forms strong coupling to electric wire, cable.In addition, for intracloud discharge process, its discharge channel mostly is horizontal direction, and radiated electric field, take horizontal component as main, therefore needs to strengthen the observational study of LEMP horizontal component of electric field.On the other hand, the demarcation of electric field change instrument only only limits to the demarcation to tested field wave graphic data, can not provide according to measured data the true waveform of tested electric field.
This invention proposes for the deficiency that current Lightning Electromagnetic Pulse electric field change is measured and measuring instrument is demarcated just.
Summary of the invention
The object of the invention is: for the significant deficiency of the outer LEMP electric field measurement technology of Present Domestic, provide a kind of brand-new LEMP three-dimensional electric field measure of the change instrument and corresponding scaling method.This measuring instrument can Overall Acquisition the LEMP electric field change waveform that produces of thunder discharge including cloud dodges, can be the different physics subprocess of research thunder discharge process the data of becoming more meticulous be provided.On the other hand, also can be research Near Ground LEMP and Protective Research thereof data accumulation is provided.
The technical problem to be solved in the present invention is: synchro measure how to realize thunder and lightning LEMP horizontal component of electric field and vertical electric field; How to realize the two demarcation of LEMP electric field change instrument output waveform data and system function; How to overcome can simultaneously the be coupled problem of vertical electric field of the single horizontal component of electric field antenna of sensor.
For addressing the above problem, the invention provides a kind of LEMP three-dimensional electric field measure of the change system, comprising: plate aerial 5 pairs (containing two electrode couple sub antennas and a secondary monopole antenna), integrated shielding shell, signal condition module, embedded data acquisition module, GPS time service module, radio receiving transmitting module, local storage unit, solar powered module and installation bracing frame etc.
Described plate aerial is that PCB copper-clad plate is made, and changes the equivalent electrical parameter of antenna by the design to printed board dielectric material and size.Two electrode couple sub antennas are used for measuring horizontal component of electric field, pass through the interference of connect difference channel elimination vertical electric field; One secondary monopole antenna is used for measuring vertical electric field.
Described integrated shielding housing is aluminum cube structure, supports, simultaneously for signal condition module and the embedded digitalization module of installing on its bottom provide effective electromagnetic screen for described plate aerial provides reliable mechanics; Its summit and seamed edge all process to reduce the impact of housing on checkout area through polishing sphering; Plate aerial is directly attached to surface of shell, and shield shell seamless link.
Described signal condition module is placed in shield shell, completes the processing of a road vertical electric field antenna and two pairs of difference horizontal component of electric field electric field signals that antenna induction receives, and concrete function comprises the functions such as impedance matching, integration amplification and nonlinear transformation.Conditioning module is passed the electrical connection of shield shell realization and plate aerial by insulation sleeve.
It is core that described embedded digitalization module adopts low-power-consumption embedded arm processor, electric field signal digitizing after amplifying for integration, the timestamp that while collection according to vertical electric field change triggers, GPS time service module provides is by LEMP electric field waveform raw data localization storage.According to the sensitivity coefficient of amplitude standardization, electric field change waveform digital quantity is converted to physical quantity, further according to transport function, electric field waveform is compensated to correction simultaneously.By LEMP horizontal component of electric field and the synthetic rear feature of extracting electric field change waveform of vertical electric field waveform, the timestamp that GPS time service module is provided and LEMP electric field waveform eigenwert are sent to terminal by wireless mode.
Described installation bracing frame, for the integrated shielding housing of fixed packet containing signal condition module and embedded digitalization module is installed, is adjusted the horizontal positioned of its length assurance sensor by rotary support bolt in conjunction with spirit-leveling instrument.
Described Lightning Electromagnetic Pulse three-dimensional electric field measuring system adopts solar powered and wireless transmission method, and integrated level is high, conveniently sets up, and is easy to realize the long term monitoring of thunder and lightning three-dimensional electric field in field unattended situation.
Beneficial effect of the present invention is:
1, can synchro measure thunder and lightning LEMP vertical electric field and horizontal component of electric field, be multianalysis lightning physics process and electronic equipment protection stockpile.
2, adopt embedded-type ARM digitized processing platform, by front end analog quantity Direct Digital, can solve the too low problem of signal to noise ratio (S/N ratio) that signal causes in wire transmission (comprising nonconductive optical fiber cable transmission) process.
3, by the two of LEMP electric field change instrument output waveform data and system function are demarcated, can obtain the true Wave data of tested LEMP electric field change.
4, adopt solar powered and wireless transmission method transmission measurement data, integrated level is high, conveniently sets up, and is easy to realize field unattended observation.
Accompanying drawing explanation
Fig. 1 is Lightning Electromagnetic Pulse three-dimensional electric field measuring instrument structural drawing;
1-GPS antenna; The integrated shielding shell of 2-; 3-signal condition unit; 4-embedded digital module; 5-support post; 6-wireless sending module; 7-power lead and signal wire; 8-height regulating rod; The solar powered unit of 9-; 10-wireless receiving module; 11-data receiving terminal.
Fig. 2 is integrated shielding case side view;
Fig. 3 is Lightning Electromagnetic Pulse three-dimensional electric field measuring system hardware configuration;
Fig. 4 is Lightning Electromagnetic Pulse three-dimensional electric field measuring instrument Time Domain Calibration arrangement plan;
12-PrimaSUG61005B lightning surge generator; 13-GMF-8E nanosecond high-voltage pulsed source; 14-Bounded-wave Simulator; 15-Lightning Electromagnetic Pulse three-dimensional electric field to be measured measuring instrument; 16-telecommunication optical fiber; 17-high-voltage probe; 18-oscillograph; 19-photoreceiver; 20-shielding cabinet.
Fig. 5 is Lightning Electromagnetic Pulse three-dimensional electric field measuring instrument Time Domain Calibration schematic flow sheet;
Fig. 6 is field intensity graph of a relation in Lightning Electromagnetic Pulse three-dimensional electric field response voltage peak value and input service space;
Fig. 7 is the amplitude frequency curve of the ssystem transfer function that obtains of Time Domain Calibration;
Fig. 8 is Lightning Electromagnetic Pulse three-dimensional electric field measuring system instrument workflow diagram.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, the integrated Lightning Electromagnetic Pulse three-dimensional electric field measuring instrument of the present embodiment comprises: GPS time service module 1, integrated shielding shell 2, signal condition module 3, embedded digitalization module 4, support post 5, wireless sending module 6, power lead and signal wire 7, height regulating rod 8, solar powered module 9, wireless receiving module 10 and control terminal 11.Plate aerial is directly attached on integrated shielding housing, with integrated shielding shell 2 seamless links, the LEMP electric field signal of induction is transferred to the signal condition module 3 in integrated shielding shell, signal condition module 3 carries out electric field signal after integration amplifies processing to transfer to embedded digitalization module 4, embedded digitalization module 4 is by electric field change analog signal figure, according to amplitude standardization coefficient, digital quantity is converted to physical quantity, further according to transfer-function coefficient, electric field change signal is compensated to correction simultaneously.
The thunder and lightning electric field change signal of induction is transferred to the signal condition module in shielding case by plate aerial, the processes such as input impedance coupling, integration amplification and the gamma correction of settling signal; Embedded digitalization module is by analog signal figure, and the timestamp information providing according to GPS time service module, stores original waveform data into local hard drive; Range coefficient and transfer-function coefficient in conjunction with Laboratory Calibration calculate and compensate original waveform; Remote terminal can carry out state parameter configuration and remote data reads by wireless transport module, and wireless transport module can adopt ZigBee or GPRS module; Supporting rack platform is installed and is adjusted carrying bolt length and guarantee in conjunction with spirit-leveling instrument the horizontal positioned of integrated shielding shell by rotation.
As shown in Figure 2, integrated shielding shell adopts aluminum material, is cube structure, and two pairs are attached to respectively shielding case surrounding for the dipole antenna of measuring horizontal component of electric field, the one secondary antenna of measuring vertical electric field is directly attached to shielding case top, guarantees the horizontal quadrature of five faces; Between shielding case and plate aerial, nothing connects support bar, and convenient installation on the one hand guaranteed that 5 plate aerials are parallel to each other with orthogonal, have avoided extra additional Distribution electric parameter on the other hand; Shielding case base plate is detachable, and signal condition module and embedded digitalization module are installed on base plate; Shielding case rib and drift angle are all taked the sphering processing of polishing, to reduce the impact of shield shell on checkout area.
The integrated Lightning Electromagnetic Pulse three-dimensional electric field of Fig. 3 measuring system hardware configuration.Signal condition module completes the processing of three tunnel electric field change signals, comprising two pairs of horizontal component of electric field differential signal He Yi road vertical electric field signals.First vertical electric field signal realizes impedance matching by the high resistant input stage being made up of low-power consumption field effect transistor, carries out gamma correction by follow circuit, carries out integration amplification after gamma correction; Horizontal component of electric field signal after the impedance matching circuit forming by low-power consumption field effect transistor, first through differential amplifier to suppress common mode interference, then carry out gamma correction by follow circuit, finally by integrating amplification circuit integration and carry out second level amplification; Analog signals after integration amplifies directly transfers to the input end of embedded digitalization module.Because vertical electric field is much larger than horizontal component of electric field, for reducing the coupling influence of vertical electric field to horizontal component of electric field, vertical electric field amplifies and adopts different gain settings with horizontal component of electric field signal, and wherein vertical electric field gain is set to 0.1, and horizontal component of electric field gain is set to 10.Embedded digitalization module is take arm processor as core, complete the work such as acquisition parameter configuration, data transmission, data localization storage and the extraction of real-time characteristic value, embedded digitalization module is reserved with network interface and Optical Fiber Transmission interface, the transmission of raw data when being convenient to the derivation of local data and demarcating test; FPGA completes sequential configuration, data cache and the control of arm processor exchanges data bus interface of front-end A/D module; GPS time service module is surveyed the gps satellite signal of measuring place, provides correct time benchmark to embedded digitalization module.
Fig. 4 is Lightning Electromagnetic Pulse LEMP three-dimensional electric field Time Domain Calibration arrangement plan.Driving source 12 and 13 is respectively PrimaSUG61005B lightning surge generator and GMF-8E nanosecond high-voltage pulsed source, being respectively used to amplitude standardization and transport function demarcates, its output terminal is linked into the input end of Bounded-wave Simulator 14, and the output terminal of Bounded-wave Simulator 14 transfers to the digital oscilloscope 18 in shielding cabinet 20 by high-voltage probe 17.The output of Lightning Electromagnetic Pulse three-dimensional electric field measuring instrument 15 transfers to digital oscilloscope 18 by light shielding system 19.When carrying out amplitude standardization or transport function timing signal, digital oscilloscope is the synchronous excitation source signal of high-voltage probe output and the electric field instrument response signal of light shielding system output of receiving respectively, by the processing of input/output signal is obtained to amplitude standardization coefficient and transfer-function coefficient.
Fig. 5 is Lightning Electromagnetic Pulse LEMP three-dimensional electric field Time Domain Calibration process flow diagram.Lightning Electromagnetic Pulse three-dimensional electric field measuring instrument is placed in Bounded-wave Simulator height
hwork space in, adjust impulse source input voltage is linked into Bounded-wave Simulator input end to desired value, form uniform vertical electric field at its work space, the output terminal of Bounded-wave Simulator is transferred to the digital oscilloscope in shielding cabinet by high-voltage probe, and the voltage waveform of electric field instrument response transfers to the digital oscilloscope in shielding cabinet by light shielding system.Introducing respectively amplitude standardization and transport function below demarcates.
The standard 1.2/50 μ s Double exponential pulse source that amplitude standardization adopts PrimaSUG61005B lightning surge generator to produce.First adjust simulator input voltage to desired value, utilize the input of digital oscilloscope record simulator driving source and electric field instrument output voltage waveforms
u ic(
t) and
u oc(
t).According to the input voltage of Bounded-wave Simulator
u ic(
t) and work space height
hcan calculate field intensity in work space:
Fig. 6 is field intensity graph of a relation in Lightning Electromagnetic Pulse three-dimensional electric field response voltage peak value and input service space.Adjust simulator input voltage
u ic(
t), obtain corresponding electric field instrument output voltage
u oc(
t).Can draw electric field instrument output voltage according to different input-output wave shapes
u ocpwith
e ipthe calibration curve changing.Formula (2) is according to electric field instrument output voltage peak value
u ompwith work space field intensity peak value
e impmatched curve expression formula.According to actual measurement
u ompin conjunction with calculating on calibration curve
e imp.According to formula (2), can be by the lightning electric field change data after digitizing, i.e. the output voltage data of electric field instrument response are converted to physical quantity data (electric field change waveform).
Transport function is demarcated and is selected GMF-8E nanosecond high-voltage pulsed source, and this pulse signal generator typical case output data are: peak value: 8kV, 4kV, 2kV; Rise time
t r: 7.8ns; Half spike width
t hp:23.8 ns.The upper limiting frequency that the driving source that this high-voltage pulsed source provides covers is hundreds of MHz.Adopt and ask with the following method transport function according to input pulse voltage waveform and electric field instrument response voltage waveform:
Three-dimensional Lightning Electromagnetic Pulse LEMP electric field instrument is considered as to linear time invariant system, and its transport function can be approximately:
In formula (3)
τ=
rC, visible
rCvalue determined the system function of electric field instrument to have determined the response of electric field instrument to measured signal.In other words,, to same tested electric field signal, adopt different
τthe electric field instrument of value is measured, and the waveform of its output is different.For this reason, must be greater than measured signal at frequency span covers under the electric field environment of frequency range the system function of electric field instrument is demarcated.For a linear system, its input and output meet convolution relation in time domain, meet the relation that multiplies each other, wherein at frequency domain
h(
t) be the impulse Response Function of system,
h(
j ω) be its corresponding frequency domain system function.
(4)
Timing signal in bounded ripple electromagnetic pulse simulator, LEMP electric field instrument is input as the impulse electric field that voltage signal source produces, and is output as the voltage signal of LEMP electric field instrument output, and ssystem transfer function is determined.Utilize the data and the MATLAB software package that under simulation LEMP electric field environment, record, select quadravalence OE model to simulate the frequency domain system function of this measuring system, obtain corresponding transfer-function coefficient, see formula (6):
The frequency spectrum function of being tried to achieve input signal by formula (5), formula (6), can obtain real system input signal by formula (7) by Fourier inversion, realizes the correction of the waveform to distortion.
Successively every one dimension of three-dimensional electric field instrument is demarcated, obtained respectively every one dimension amplitude standardization coefficient and transfer-function coefficient.
Fig. 7 is amplitude frequency curve corresponding to ssystem transfer function that quadravalence OE Model Distinguish obtains.
The integrated Lightning Electromagnetic Pulse three-dimensional electric field of Fig. 8 measuring instrument workflow diagram: after system powers on, first carry out parameter configuration, specifically comprise the parameters such as sampling rate setting, the setting of acquisition time length, pre-triggered time and activation threshold value, when parameter is after setting completed in triggering waiting status.When thunder and lightning occurs, when the thunder and lightning electric field change signal of vertical flat plate antenna induction meets the threshold triggers condition of setting, starting embedded digitalization module is acquisition state, and Jiang San road electric field change waveform modelling signal is converted to digital signal; In the time that vertical flat plate antenna induction electric field change signal meets trigger condition, GPS time service module is receiving after trigger pip that output time stamp information is to embedded digitalization module; By the raw data after the electric field change signal digital of the current San of obtaining road, the timestamp information that provides of GPS time service module when triggering and corresponding acquisition channel name are saved to local hard drive to embedded digitalization module.
In embedded digitalization module, software adopts multithreading the tasks such as data acquisition, store tasks and data pre-service are given to several independently threads to carry out simultaneously.Wherein the thread priority of store tasks be set to the highest, to guarantee the reliable memory of raw data; Further, embedded digitalization module is carried out pre-service and eigenwert extraction to the electric field change waveform gathering.First according to amplitude standardization coefficient, the digital quantity of electric field change signal is converted to physical quantity; Then, demarcate and compensate the real original electric field shape information of proofreading and correct to obtain to changing rear physical quantity according to transport function; Two horizontal electric field component are synthesized and can be obtained total horizontal component of electric field waveform by vector; Can obtain total electric field change waveform by synthetic to LEMP horizontal component of electric field and vertical electric field wave vector; Finally extract total electric field and change waveform character (rising edge, peak amplitude and half spike width), the timestamp that GPS time service module is provided and LEMP electric field waveform eigenwert are sent to terminal by wireless mode.
Claims (8)
1. integrated Lightning Electromagnetic Pulse three-dimensional electric field measuring instrument, comprising: plate aerial, integrated shielding shell, signal condition module, embedded digitalization module, GPS time service module, wireless communication module, supply module and installation bracing frame; Described plate aerial is for induction lightening electric field change signal; Integrated shielding shell supports for plate aerial provides reliable mechanics, simultaneously for signal condition module and embedded digitalization module provide effective electromagnetic screen; Signal condition module is used for realizing the functions such as impedance matching, integration amplification and the gamma correction of thunder and lightning electric field change signal; Embedded digitalization module, for realizing the digitizing of electric field change signal, is converted into physical quantity in conjunction with calibration coefficient by digital quantity, and the compensation correction and the waveform character that complete actual measurement electric field change waveform extract; Timestamp information when GPS time service module provides system triggers to gather; Wireless communication module reads and the transmission of real-time characteristic value for the state parameter of remote terminal; Power supply unit can be system independently uninterrupted power source is provided.
2. integrated Lightning Electromagnetic Pulse three-dimensional electric field measure of the change instrument according to claim 1, it is characterized in that, can obtain the comprehensive information of radiation of lightening discharge electric field change, be synchro measure thunder and lightning LEMP vertical electric field and horizontal component of electric field, can be lightning physics process analysis procedure analysis and electrical equipment coupling assessment effective data accumulation is provided.
3. integrated Lightning Electromagnetic Pulse three-dimensional electric field measure of the change instrument according to claim 1, is characterized in that, plate aerial adopts PCB copper-clad plate to make, and changes the equivalent electrical parameter of antenna by the design to printed board dielectric material and size; Wherein a secondary monopole antenna is used for measuring vertical electric field, and two pairs of orthogonal dipole antennas horizontal positioned are measured horizontal component of electric field, and two horizontal electric field component are synthesized and can be obtained total horizontal component of electric field waveform by vector.
4. integrated Lightning Electromagnetic Pulse three-dimensional electric field measure of the change instrument according to claim 1, it is characterized in that, shield shell adopts integrated design, adopt alumina based material, for cube structure, its summit and corner angle are all through the processing of polishing sphering, and plate aerial is directly attached to housing surrounding and top; Housing base plate is detachable, and signal condition module and embedded digitalization module are all placed in shield shell, is arranged on shielding case base plate; Housing base plate is connected with installation bracing frame by four bolts, and in conjunction with spirit-leveling instrument, the length of adjusting bolt guarantees the level of shield shell.
5. integrated Lightning Electromagnetic Pulse three-dimensional electric field measure of the change instrument according to claim 1, it is characterized in that, for reducing the coupling influence of vertical electric field to horizontal component of electric field, the input stage that the output voltage of every group of dipole antenna is made up of low-power consumption field effect transistor, subsequently by differential amplification with suppress common mode interference, carry out non-linear pre-correction by follow circuit, finally carry out integration and the second level and amplify; Vertical electric field amplifies and adopts different gain settings with horizontal component of electric field signal, and wherein vertical electric field gain is set to 0.1, and horizontal component of electric field gain is set to 10.
6. integrated Lightning Electromagnetic Pulse three-dimensional electric field measure of the change instrument according to claim 1, is characterized in that, embedded digitalization module is directly connected with signal condition module, is all placed in integrated shielding shell; In embedded digitalization module, software adopts multithreading the tasks such as data acquisition, store tasks and data pre-service are given to several independently threads to carry out simultaneously; Embedded digitalization module is converted to physical quantity data according to amplitude standardization coefficient by the electric field change data after digitizing, according to transport function, actual measurement electric field change signal is compensated to correction simultaneously; On this basis, extract respectively the eigenwert (rising edge, peak amplitude and half spike width) of vertical electric field and horizontal component of electric field variation waveform.
7. embedded digitalization module according to claim 6, is characterized in that, the thread priority of store tasks is set to the highest, to guarantee the reliable memory of raw data; In the time that thunder and lightning vertical electric field signal meets activation threshold value condition, embedded digitalization module reads the timestamp of GPS time service module output and starts and gathers, the timestamp of exporting using GPS time service module and corresponding acquisition channel name are as Data Filename, and Jiang Yi road vertical electric field and two-way horizontal component of electric field change original waveform information and be saved to respectively local hard drive.
8. integrated Lightning Electromagnetic Pulse three-dimensional electric field measure of the change instrument according to claim 1, is characterized in that, described power supply unit adopts sun power, realizes switch, systematic parameter configuration and the characteristic value data of power supply by wireless transmission method.
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