CN2760565Y - GPS digitization electric field detector - Google Patents
GPS digitization electric field detector Download PDFInfo
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- CN2760565Y CN2760565Y CN 200420087930 CN200420087930U CN2760565Y CN 2760565 Y CN2760565 Y CN 2760565Y CN 200420087930 CN200420087930 CN 200420087930 CN 200420087930 U CN200420087930 U CN 200420087930U CN 2760565 Y CN2760565 Y CN 2760565Y
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Abstract
The utility model relates to a GPS digitization electric field detector used for blastoff safety guarantee of a spacecraft, which comprises hollow spherical electric field sensors arranged on the two sides of a horizontal rotating shaft, a GPS receiving antenna arranged on the upper part of the utility model, a motor and a bearing, wherein the GPS receiving antenna points the sky; both ends of the rotating shaft respectively enable the motor and the bearing to rotate. A photocoupler comprises a light emitting diode and a light emitting triode which are respectively fixed on the shaft center of the end of the rotating shaft and a fixing rack of the bearing; the heads of the diode and the triode are in a paraboloidal shape and arranged face to face; a detection circuit arranged in a sensor sphere comprises an I/V convertor, voltage amplifier, a single chip machine, an A/D convertor and a driver of the light emitting diode; the positive pole of the diode is connected with signals, and the negative pole is connected with the ground; a battery set is arranged in the other sensor sphere; signals of a GPS receiver and signals of the electric field are respectively connected with a 1680MHz transmitter after connected with an adder by respective subcarrier modulator; an antenna of the transmitter is arranged on the lower part of the utility model and points the ground. The utility model obtains the height by the GPS, traces and positions a sonde. The utility model has the advantages of low cost, easy operation and reliable operation.
Description
Invention field
The utility model relates to a kind of ball and carries double-ball type electric field detecting instrument, particularly relates to a kind ofly being applicable to that the overhead thunder and lightning in thunder and lightning emphasis defence area such as spacecraft launching site ground is dangerous and the electrical environment situation is surveyed and the GPS digitizing electric field detecting instrument of early warning.
Background technology
Thunder and lightning is the key factor that causes the spacecraft mishap, is not struck by lightning in the lift-off process or brings out and launch a surprise attack for guaranteeing spacecraft, atmospheric electric field intensity has been classified as the important parameter in the spacecraft safety lift-off standard.At present, the important parameter in the spacecraft safety lift-off standard comprises: surface air electric field intensity is not more than 1kV/m, and therefore space electric field should, before the spacecraft lift-off, must measure ground electric field and space electric field less than 10kV/m.Ball has carried the double-ball type electric field instrument since 1994 come into operation, successively in Xichang, Jiuquan and Taiyuan Satellite Launch Center participated in tens of spacecrafts lift-off safety guarantee, the detection data that is obtained for spacecraft timely emission important evidence is provided.
The patent No. be ZL962156434 patent disclosure a kind of ball carry double-ball type electric field detecting instrument, its structure: comprise feathering axis and place in two the hollow ball shape electric-field sensors, a spherical electric-field sensor of its both sides circuit and the upright position sensor of measuring electric field is housed, in another spherical electric-field sensor battery is housed; The two ends of feathering axis are equipped with respectively and are made turning axle motor rotating and bearing; Turning axle is furnished with the brush of drawing electric field signal in an end center of bearing; Barometer and high standard thereof, low mapping amount circuit; 1680MHz transmitter and emitting antenna; Signals such as electric field signal that brush is drawn and air pressure measuring-signal and high standard thereof, low mark are delivered to transmitter.And the method for pressing the time-division is launched successively earthward.Track and localization to the electric field sonde adopts radar or radio theodolite.
(1) the upright position sensor utilizes gravity field and photoelectricity transformation principle design; (2) axle ball bindiny mechanism adopts one-piece construction; (3) electric field signal is incorporated into transmitter by double brush; (4) two spheric conductor sensors adopt can plate plastic production.
This patent has solved the domestic problem that fashion does not have the balloon electric field instrument of working as, and compares with external like product, and the upright position sensor of instrument utilizes gravity field and photoelectricity transformation principle than advanced, ensures that spacecraft safety lift-off during thunderstorm has played vital role.Yet, along with the development of technology, needing further to improve and improve, the ZL962156434 patent was abandoned in 2002.
Former electric field sonde is to obtain altitude information by measuring atmospheric pressure, adopts radar or radio theodolite to come track and localization.But do not produce because the film of (1) former use U.S. closes baroceptor, homemade baroceptor is bigger in the following error of 10km; And expensive, therefore two ball electric field sonde systems face the selection of update greatly for radar or radio theodolite Pang, seek the tracing-positioning system that other obtain methods highly and change ground.(2) relatively some components and parts (as large bulk capacitance in diode in effective testing circuit and the V/F transducer) temperature coefficient of crux is bigger to processing signals in the former pair of ball electric field instrument signal processing circuit; Simultaneously motor also is subject to Temperature Influence, environment temperature-70 ℃ to+50 ℃ under, although taked insulation and temperature compensation measure, still be difficult to the result who obtains to feel quite pleased.(3) former electric field detecting signal is transferred to transmitter by brush, and the loose contact phenomenon appears in debugging trouble sometimes.
Summary of the invention
The purpose of this utility model is the problem at above-mentioned existence, a kind of GPS digitizing electric field detecting instrument is provided, this detection instrument adopts the GPS location to substitute Pang big and expensive radar or radio theodolite, obtain the instantaneous position of wind speed, wind direction and height and electric field sonde, make device do not only light but also cheaply, the saving funds are installed simple, easy to operate, be convenient to motor-driven use; Avoid employing pressure reduction height method to need regular (about 1 year) verification barometrical trouble simultaneously and be difficult to be subscribed to the trouble and worry of proper air pressure meter; Two ball electric field instruments are surveyed line numbersization, be easy to consistently, be convenient to simultaneously on ground the correction of data is reduced the influence to detection data of environment temperature and rotating speed with the data layout of GPS; Again mechanical brush is used instead the photoelectricity coupling, made debugging easy, improve signal transmission quality and precision and reliability.
The technical solution of the utility model is as follows:
The GPS digitizing electric field detecting instrument that the utility model provides comprises:
A pair of being separated by is placed on a hollow ball shape electric- field sensor 100 and 200 that horizontally rotates axostylus axostyle 2 both sides; Its top is provided with the GPS receiving antenna 5 that points into the sky; A described end that horizontally rotates axostylus axostyle 2 links to each other with drive motor 3, and is rotated around the axle center by drive motor 3 drivings; It is characterized in that, also comprise:
One photoelectrical coupler 6, its composition comprise the light emitting diode and the phototriode of an infrared band, and described light emitting diode is fixed on the shaft core position place that horizontally rotates axostylus axostyle 2 ends, and rotate with horizontally rotating axostylus axostyle 2; Described phototriode is fixed on the bearing fixing framework of feathering axis 2, and its output terminal links to each other with subcarrier modulator 13 in the 1680MHz transmitter 8 by an amplifier; The head of described phototriode and light emitting diode is paraboloidal, and its paraboloidal summit is staggered relatively, each other at a distance of 1-2mm, can receive desired light intensity and don't influence the rotation of light emitting diode to guarantee phototriode;
Be provided with I/V transducer 10, voltage amplifier 11 and the A/D transducer 12 and the control single chip computer 16 thereof that are electrically connected successively in the hollow ball of described hollow ball shape electric-field sensor 100, described A/D transducer 12 links to each other by the anodal pin of the light emitting diode in a photodiode driver and the photoelectrical coupler 6, with the driven for emitting lights led lighting, the negative pole pin ground connection of light emitting diode; The power-supply battery that is used to drive described each device in the described hollow ball shape electric-field sensor 100 is housed in the hollow ball of described hollow ball shape electric-field sensor 200;
The signal that described GPS receiver 7 receives from GPS receiving antenna 5, and be electrically connected with GPS subcarrier modulator 15 in the 1680MHz transmitter 8;
GPS subcarrier modulator 15 in the described 1680MHz transmitter 8 is connected with summitor 14 input ends respectively with the output terminal of electric field signal subcarrier modulator 13;
The 1680MHz emitting antenna 9 of described 1680MHz transmitter 8 is positioned at the bottom of 1680MHz transmitter 8 and directed towards ground, and with the GPS receiving antenna 5 back-to-back placements that are positioned at hollow ball shape electric- field sensor 100 and 200 tops, both are at a distance of 3 ± 0.2 meters;
One single-chip microcomputer 16 is electrically connected with A/D transducer 12 in the hollow ball shape electric-field sensor 100, with the sampling rate of control A/D transducer, parallel serial conversion, data transmission format etc.
During use, GPS digitizing electric field detecting instrument of the present utility model hung to fly in the air by balloon electric field is surveyed, its signal flow is such: from the signal of hollow ball shape electric- field sensor 100 and 200 successively through I/V transducer 10, voltage amplifier 11, A/D transducer 12, photoelectrical coupler 6 and electric field signal subcarrier modulator 13, with come from GPS receiving antenna 5, through GPS receiver 7, the gps signal of GPS subcarrier modulator 15 is sent to summitor 15 simultaneously, be modulated to after the addition on the 1680MHz carrier wave by 1680MHz transmitter 8, send to ground through 1680MHz emitting antenna 9.
A/D transducer 12 is worked under single-chip microcomputer 16 control, and it is that the electric field signal of quasi sine is transformed into the numerical code signal, Single-chip Controlling sampling rate, the conversion of finishing serial code, data transmission bauds, data transmission format etc. with 2-3Hz.Adopt and to be convenient to after the digitizing with the common transmission of GPS numerical code signal with afterwards to the recovery (D/A conversion) of signal waveform.
Subcarrier modulator divides GPS subcarrier modulator 15 and electric field signal subcarrier modulator 13.When adopting frequency division multiplexing telemetry system to transmit two or more signals, have one to close the process of afterwards dividing earlier, promptly every road signal is modulated on the subcarrier, by summitor 14 each road signal being superimposed to be modulated on the carrier wave again then sends to ground.Behind the receiving demodulation of ground, by bandpass filter each road Signal Separation is come out again, carry out separately subcarrier and separate to be in harmonious proportion and carry out separately processing.
Advantage of the present utility model is as follows:
A, employing GPS obtain longitude and latitude and height and time data, therefrom calculate the needed instantaneous position data of electric field sonde, altitude information, wind speed and direction data.Avoided adopting Pang big and expensive radar (first phase) or radio theodolite, made system do both lightly, be convenient to motor-driven use.And funds can be reduced to and be 1/3rd of original system.Install simple, easy to operate.
B, use the 1680MHz carrier frequency, than the 400MHz carrier frequency of general employing, antenna can be done small and exquisitely, still can use receiver and receiving antenna thereof in the former electric field sonde system simultaneously, also can save departmental cost and workload.
The influence of C, and standing time affected by environment in the barometric surveying precision.Must in 1 year, demarcate once, have the trouble of revising and demarcating again.And replace air pressure instrumentation higher position to avoid these troubles with GPS, and increased the resting period of instrument, shortened the granting preliminary work time.
D, the instrument detectable signal is carried out digitizing, be convenient to have identical data layout and transmit, and avoided in the electric field signal circuit, adopting the bigger element of temperature coefficient, alleviated the influence of environment temperature detection data with gps data; Simultaneously can obtain the instrument rotary speed information, just can revise, eliminate variation of ambient temperature and cause of the influence of instrument rotation speed change, improve the measuring accuracy of electric field detectable signal to cause the detection data changing unit because of rotation speed change.
E, the signal that will rotate instrument are transferred to static transmitter and use the photoelectricity coupling instead by mechanical brush, debug easyly, can improve signal transmission quality, increase its reliability.
Description of drawings
Accompanying drawing 1 is the structural representation of electric field sonde in the prior art;
Accompanying drawing 2 is a structural representation of the present utility model;
Wherein: hollow ball shape electric-field sensor 100,200 horizontally rotates axostylus axostyle 2 drive motor 3
I/V transducer 10 voltage amplifiers 11 A/D transducers 12
Electric field signal subcarrier modulator 13 summitors 14
GPS subcarrier modulator 15 single-chip microcomputers 16
Embodiment
Accompanying drawing 2 is a structural representation of the present utility model; As seen from the figure, the GPS digitizing electric field detecting instrument that the utility model provides comprises:
A pair of being separated by is placed on a hollow ball shape electric- field sensor 100 and 200 that horizontally rotates axostylus axostyle 2 both sides; Its top is provided with the GPS receiving antenna 5 that points into the sky; A described end that horizontally rotates axostylus axostyle 2 links to each other with drive motor 3, and is rotated around the axle center by drive motor 3 drivings; It is characterized in that, also comprise:
One photoelectrical coupler 6, its composition comprise the light emitting diode and the phototriode of an infrared band, and described light emitting diode is fixed on the shaft core position place that horizontally rotates axostylus axostyle 2 ends, and rotate with horizontally rotating axostylus axostyle 2; Described phototriode is fixed on the bearing fixing framework of feathering axis 2, and its output terminal links to each other with subcarrier modulator 13 in the 1680MHz transmitter 8 by an amplifier; The head of described phototriode and light emitting diode is paraboloidal, and its paraboloidal summit is staggered relatively, each other at a distance of 1-2mm, can receive desired light intensity and don't influence the rotation of light emitting diode to guarantee phototriode;
Be provided with I/V transducer 10, voltage amplifier 11 and the A/D transducer 12 and the single-chip microcomputer 16 that are electrically connected successively in the hollow ball of described hollow ball shape electric-field sensor 100, described A/D transducer 12 links to each other by the anodal pin of the light emitting diode in a photodiode driver and the photoelectrical coupler 6, with the driven for emitting lights led lighting, the negative pole pin ground connection of light emitting diode; The power-supply battery group that is used to drive described each device in the described hollow ball shape electric-field sensor 100 is housed in the hollow ball of described hollow ball shape electric-field sensor 200;
The signal that described GPS receiver 7 receives from GPS receiving antenna 5, and be electrically connected with GPS subcarrier modulator 15 in the 1680MHz transmitter 8;
GPS subcarrier modulator 15 in the described 1680MHz transmitter 8 is connected with summitor 14 input ends respectively with the output terminal of electric field signal subcarrier modulator 13;
The 1680MHz emitting antenna 9 of described 1680MHz transmitter 8 is positioned at the bottom of 1680MHz transmitter 8 and directed towards ground, and with the GPS receiving antenna 5 back-to-back placements that are positioned at hollow ball shape electric- field sensor 100 and 200 tops, both are at a distance of 3 ± 0.2 meters;
One single-chip microcomputer 16 is electrically connected with A/D transducer 12 in the hollow ball shape electric-field sensor 100, with the sampling rate of control A/D transducer, parallel serial conversion, data transmission format etc.
The utility model adopt longitude that Global Positioning System (GPS) GPS obtains, latitude, highly, the speed of a ship or plane, course data, because carrier frequency 1680MHz and GPS receive, transmission frequency 1575MHz is close, might exist to influence each other or disturb, especially transmit the interference of GPS.The utility model has been taked following measure: 1, the GPS receiving antenna is placed the top of hollow ball shape electric-field sensor 100,200 to point into the sky, and in the bottom of 1680MHz the transmitter 8 and downward directed towards ground of the emitting antenna 9 of 1680MHz transmitter 8, i.e. the back-to-back installation of two antennas is at a distance of several meters or farther (Fig. 1); 2, transmitter 8 transmitted spectrum control in (1680 ± 10) MHz scope; 3, in the case of necessary, also can add bandpass filter at the input end of GPS receiver 7; Other 4, separating method in the time of also can adopting, reduce cross interference each other: satisfying under the situation of application requirements, can select the information transmission baud rate is 4800bit/s, utilize GPS pulse per second (PPS) width to be provided with, with the pulse per second (PPS) separated into two parts, the transmit GPS longitude and latitude, highly, course, the speed of a ship or plane and time information holding time be less than 1/2 second, remaining 1/2 second transmission electric field detecting signal.In ground receiving system, GPS information and electric field signal are separated by time-division switching, handle respectively obtain electric field data and longitude and latitude, highly, the speed of a ship or plane, course data, it is all synchronous with the pulse per second (PPS) of GPS that ball carries the time-division switching of the time-division switching of part and above ground portion.5, after ball carries part electric field measurement employing digitizing, adopt the transmission of baud rate (bit/s) form.Behind the receiving demodulation of ground, can directly send into Computer Processing like this, and can revise surveying the electric field data, improve the detection accuracy of instrument according to the real-time rotating speed of instrument; 6, adopt the method for photoelectricity coupling, make transmission reliable, debugging is simple.
Equipment circuit and electric battery are installed in respectively in two balls of hollow ball shape electric-field sensor 100,200, two electric-field sensors are connected respectively to the in-phase end and the end of oppisite phase of charge amplifier, when two spherical electric-field sensors pivot, electric field component perpendicular to turning axle induces equal and opposite in direction, opposite polarity electric charge, the intensity E of induced charge amount Q and external electrical field respectively on two balls
0Be directly proportional.Under two spherical coordinates,, about the separating of induced charge on two balls in uniform electric field, have according to Davis if two conducting spheres remain on same current potential by charge amplifier
In the formula,
Be the specific inductive capacity of air, E
0Be atmospheric electric field intensity (kV/m) that Φ is E
0Vector and the angle of two centre ofs sphere, a=(D
2-R
2)
1/2Be the scale factor of two balls, and D is the distance of the centre of sphere to central point between two balls, R is the radius of ball, and μ=ln (D+a/R) is the yardstick coordinate of two balls of sphere, S
1Be a progression function, its general expression is
S
i(ξ)=∑
N=0 ∞(2n+1)
ie
(2N+1) ξ/ [e
(2N+1) (μ 1+ μ 2)-1]. the structural parameters of (2) substitution two balls can obtain the induced charge amount in the CGSE system.Carry out in the electric field calibration system that condenser type simulate electric field device that the dull and stereotyped electric conductor that the demarcation of electric field instrument is parallel to each other by two at a cover is formed and high voltage direct current controllable electric power constitute.Under different simulate electric field values, measure the output valve of instrument, under x, y coordinate, draw the relation curve of the output valve and the simulate electric field value of instrument, i.e. the calibration curve of instrument, this instrument has good linearity.
Claims (2)
1, a kind of GPS digitizing electric field detecting instrument comprises:
A pair of being separated by is placed on hollow ball shape electric-field sensor (100) and (200) that horizontally rotate axostylus axostyle (2) both sides; Its top is provided with the GPS receiving antenna (5) that points into the sky; A described end that horizontally rotates axostylus axostyle (2) links to each other with drive motor (3), and is rotated around the axle center by drive motor (3) driving; It is characterized in that, also comprise:
One photoelectrical coupler (6), its composition comprise the light emitting diode and the phototriode of an infrared band, and described light emitting diode is fixed on the shaft core position place that horizontally rotates axostylus axostyle (2) end, and rotate with horizontally rotating axostylus axostyle (2); Described phototriode is fixed on the bearing fixing framework of feathering axis (2), and its output terminal links to each other with subcarrier modulator (13) in the 1680MHz transmitter (8) by an amplifier; The head of described phototriode and light emitting diode is paraboloidal, and its paraboloidal summit is staggered relatively, each other at a distance of 1-2mm, can receive desired light intensity and don't influence the rotation of light emitting diode to guarantee phototriode;
Be provided with I/V transducer (10), voltage amplifier (11) and the A/D transducer (12) and the single-chip microcomputer (16) thereof that are electrically connected successively in the hollow ball of described hollow ball shape electric-field sensor (100), described A/D transducer (12) links to each other by the anodal pin of the light emitting diode in a photodiode driver and the photoelectrical coupler (6), with the driven for emitting lights led lighting, the negative pole pin ground connection of light emitting diode; The power-supply battery group that is used to drive described each device in the described hollow ball shape electric-field sensor (100) is housed in the hollow ball of described hollow ball shape electric-field sensor (200);
Described GPS receiver (7) receives the signal from GPS receiving antenna (5), and is electrically connected with GPS subcarrier modulator (15) in the 1680MHz transmitter (8);
GPS subcarrier modulator (15) in the described 1680MHz transmitter (8) is connected with summitor (14) input end respectively with the output terminal of electric field signal subcarrier modulator (13);
The 1680MHz emitting antenna (9) of described 1680MHz transmitter (8) is positioned at the bottom of 1680MHz transmitter (8) and directed towards ground, and with the back-to-back placement of GPS receiving antenna (5) that is positioned at hollow ball shape electric-field sensor (100) and (200) top, both are at a distance of 3 ± 0.2 meters;
One single-chip microcomputer (16) is electrically connected with A/D transducer (12) in the hollow ball shape electric-field sensor (100), with sampling rate, parallel serial conversion, the data transmission format of control A/D transducer.
2, by the described GPS digitizing of claim 1 electric field detecting instrument, it is characterized in that the input end of described GPS receiver (7) adds bandpass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420087930 CN2760565Y (en) | 2004-08-12 | 2004-08-12 | GPS digitization electric field detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420087930 CN2760565Y (en) | 2004-08-12 | 2004-08-12 | GPS digitization electric field detector |
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| CN2760565Y true CN2760565Y (en) | 2006-02-22 |
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| CN 200420087930 Expired - Fee Related CN2760565Y (en) | 2004-08-12 | 2004-08-12 | GPS digitization electric field detector |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100578262C (en) * | 2006-11-22 | 2010-01-06 | 中国科学院安徽光学精密机械研究所 | GPS multifunctional turbulent current sonde and its measurement method |
| CN101501508B (en) * | 2006-06-23 | 2012-09-19 | 斯沃奇集团研究和开发有限公司 | System for measuring the radiation pattern of a transmission antenna |
| CN102859990A (en) * | 2010-04-29 | 2013-01-02 | 伊斯曼柯达公司 | Indoor/outdoor scene detection using GPS |
| CN103076508A (en) * | 2012-12-31 | 2013-05-01 | 国网电力科学研究院武汉南瑞有限责任公司 | Inverted low-power-consumption constant-speed electric field instrument |
| CN103630760A (en) * | 2012-08-28 | 2014-03-12 | 国家广播电影电视总局无线电台管理局 | Field intensity data process system and method |
| CN105182089A (en) * | 2015-07-24 | 2015-12-23 | 中国石油化工股份有限公司 | Self-correcting thundercloud trajectory prediction method |
| CN105223970A (en) * | 2014-06-20 | 2016-01-06 | 陈春林 | A kind of automatic tracking system based on sonde and method |
| CN107843775A (en) * | 2017-12-20 | 2018-03-27 | 中国科学院大气物理研究所 | Posture can perceive thunder cloud three-dimensional electric field sonde |
| CN108693413A (en) * | 2018-04-25 | 2018-10-23 | 华北电力大学 | Rotary optical electric-field sensor and its measurement electric field methods |
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2004
- 2004-08-12 CN CN 200420087930 patent/CN2760565Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101501508B (en) * | 2006-06-23 | 2012-09-19 | 斯沃奇集团研究和开发有限公司 | System for measuring the radiation pattern of a transmission antenna |
| CN100578262C (en) * | 2006-11-22 | 2010-01-06 | 中国科学院安徽光学精密机械研究所 | GPS multifunctional turbulent current sonde and its measurement method |
| CN102859990A (en) * | 2010-04-29 | 2013-01-02 | 伊斯曼柯达公司 | Indoor/outdoor scene detection using GPS |
| CN103630760A (en) * | 2012-08-28 | 2014-03-12 | 国家广播电影电视总局无线电台管理局 | Field intensity data process system and method |
| CN103076508A (en) * | 2012-12-31 | 2013-05-01 | 国网电力科学研究院武汉南瑞有限责任公司 | Inverted low-power-consumption constant-speed electric field instrument |
| CN103076508B (en) * | 2012-12-31 | 2015-09-02 | 国网电力科学研究院武汉南瑞有限责任公司 | Inversion type low-power consumption constant speed electric field instrument |
| CN105223970A (en) * | 2014-06-20 | 2016-01-06 | 陈春林 | A kind of automatic tracking system based on sonde and method |
| CN105182089A (en) * | 2015-07-24 | 2015-12-23 | 中国石油化工股份有限公司 | Self-correcting thundercloud trajectory prediction method |
| CN105182089B (en) * | 2015-07-24 | 2019-03-26 | 中国石油化工股份有限公司 | A kind of thundercloud trajectory predictions method of self-correction |
| CN107843775A (en) * | 2017-12-20 | 2018-03-27 | 中国科学院大气物理研究所 | Posture can perceive thunder cloud three-dimensional electric field sonde |
| CN107843775B (en) * | 2017-12-20 | 2024-02-27 | 中国科学院大气物理研究所 | Three-dimensional electric field sonde capable of sensing thunderstorm cloud in gesture |
| CN108693413A (en) * | 2018-04-25 | 2018-10-23 | 华北电力大学 | Rotary optical electric-field sensor and its measurement electric field methods |
| CN108693413B (en) * | 2018-04-25 | 2023-09-19 | 华北电力大学 | Rotary optical electric field sensor and electric field measuring method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060222 Termination date: 20120812 |