CN104793043A - Electric potential monitoring device used for plasmas in space environment - Google Patents
Electric potential monitoring device used for plasmas in space environment Download PDFInfo
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- CN104793043A CN104793043A CN201510188602.9A CN201510188602A CN104793043A CN 104793043 A CN104793043 A CN 104793043A CN 201510188602 A CN201510188602 A CN 201510188602A CN 104793043 A CN104793043 A CN 104793043A
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Abstract
The invention provides an electric potential monitoring device used for plasmas in a space environment. The electric potential monitoring device comprises an electric potential sensor, a microprocessor, a D/A (digital/analog) converter, an A/D (analog/digital) converter, a high voltage amplifier, a pre-amplifier and an isolation amplifier. The microprocessor is used for controlling the D/A converter to output scanning voltage. The high-voltage amplifier is used for performing high-voltage amplification on the scanning voltage and inputting the amplified scanning voltage into the electric potential sensor. The electric potential sensor is driven by the scanning voltage to detect electric potentials of the plasmas in the space environment, and generated current signals are input into the pre-amplifier and the isolation amplifier sequentially for pre-amplifier and isolation amplification sequentially and then output via the microprocessor after being subjected to analog-digital conversion. The electric potential monitoring device has the advantages that by means of high voltage amplification, the scanning voltage in a large range is provided, and plasma density in a large range can be measured, so that electric potentials of the plasmas in the space environment can be monitored effectively.
Description
Technical field
The present invention relates to space exploration technical field, particularly relate to a kind of monitoring device for plasma potential in space environment.
Background technology
The spacecraft run in space is in plasma ambient, and around dissociate a large amount of charged particles.These particles are very large on spacecraft impact, can produce various effect, the safety of infringement spacecraft.
Domestic research is in early days not high for satellite charged effect attention degree, and along with the raising of solar activity severe degree in recent years, space environment is increasingly severe, the degree of damage of charged effect to satellite increases the weight of gradually, domestic multi-satellite is made in succession to occur catastrophic failure, all relevant to charged effect according to analysis.
Summary of the invention
The object of the invention is to, in order to the charged effect situation that the spacecraft can effectively monitored out is in orbit caused by the impact of space high energy charged particles, provide a kind of monitoring device for plasma potential in space environment.This monitoring device effectively can monitor the spacecraft plasma potential in space environment.
For achieving the above object, the invention provides a kind of monitoring device for plasma potential in space environment, comprising: potentiometric sensor, microprocessor, D/A converter, A/D converter, high-voltage amplifier, prime amplifier and isolated amplifier; Described Microprocessor S3C44B0X D/A converter exports scanning voltage, and described high-voltage amplifier is used for after scanning voltage high voltage amplifier, inputs to potentiometric sensor by prime amplifier; The current signal of generation with the plasma potential in space exploration environment, and is inputed to prime amplifier and isolated amplifier carries out enlarge leadingly and isolation is amplified by the driving of scanning voltage by described potentiometric sensor successively; Described A/D converter is used for the current signal exported from isolated amplifier to carry out analog to digital conversion, and the digital signal of generation is inputed to microprocessor; The digital signal of collection exports by described microprocessor.
As the further improvement of technique scheme, the scanning voltage after described high-voltage amplifier amplifies is ± 200V.
As the further improvement of technique scheme, described monitoring device adopts areal survey.
As the further improvement of technique scheme, described monitoring device also comprises light-coupled isolation and analog switch; Described light-coupled isolation is used for the signal potential cutting grade signal to suspend, and described analog switch is used for the quick switching of gear.
It is made to export ± the scanning voltage of 5V by Microprocessor S3C44B0X D/A converter, by scanning voltage by high-voltage amplifier be amplified to ± 200V after input prime amplifier, and it can be used as the reference ground of this prime amplifier, because this prime amplifier void is short, the scanning voltage therefore supplying potentiometric sensor is ± 200V.The current signal that potentiometric sensor is collected amplifies by prime amplifier, because this signal common mode voltage is excessive, therefore isolated by isolated amplifier, it is made to become ± 5V voltage output, supply A/D converter is sampled, and gives microprocessor subsequently process the sampled signal of generation, and now microprocessor sends by the scope detecting sampled signal and cuts grade signal to light-coupled isolation, export to the switching that analog switch carries out sampling resistor immediately, thus realize automatically cutting a grade function.Automatically cut grade function effectively can improve little collected current under sampling precision.
The advantage of a kind of monitoring device for plasma potential in space environment of the present invention is:
Monitoring device of the present invention can effectively monitor plasma potential in space environment, by having large-scale scanning voltage after high voltage amplifier, can measure and wait particle density on a large scale, and high drive voltage scanning is low in energy consumption, and different sampled signals is realized automatically cutting a grade function, effectively to improve the detection accuracy under little collected current.
Accompanying drawing explanation
Fig. 1 is a kind of monitoring device structural representation for plasma potential in space environment in the embodiment of the present invention.
Fig. 2 is a kind of plasma potential monitoring device high tension driver module circuit diagram in the embodiment of the present invention.
Embodiment
A kind ofly to be described in detail for the monitoring device of plasma potential in space environment to of the present invention below in conjunction with drawings and Examples.
Of the present inventionly a kind ofly to comprise for the monitoring device of plasma potential in space environment: plasma electrically level sensor, electronics case; Wherein electronics case comprises: analog signal processing circuit, digital signal processing circuit, voltage scanning module;
Its annexation is: because sampled signal is faint, described plasma electrically level sensor is connected by shielded cable with electronics case, the Signal transmissions that plasma electrically level sensor detects is carried out analog signal processing to electronics case by shielded cable, subsequently simulating signal is converted to digital signal and is transferred to microprocessor carry out storing and send.
Microprocessor is by transmitting control signal to DA, make the scanning voltage of its exportable ± 5V, subsequently by high pressure amplifying be amplified to ± 200V supply prime amplifier input end+, and it can be used as the reference ground of prime amplifier, because prime amplifier is negative feedback loop, empty short, sensor and prime amplifier input end-be connected, therefore be applied to scanning voltage on plasma electric level sensor for ± 200V, namely potential probes works under the scanning voltage of ± 200V.Because the potential difference (PD) of sensor and space environment continues to change, the collected current of probe is changed.By the collected current that can draw probe across resistance of monitoring prime amplifier input/output terminal, because scanning voltage be ± 200V, the common mode voltage across resistance two ends is excessive, utilizes isolated amplifier to carry out isolation amplification to the voltage across resistance two ends, exports as ± 5V.Because the magnitude span of sensor collection electric current is comparatively large, only meeting accuracy requirement with one across thwarting, adopting areal survey to address this problem.By microprocessor to light-coupled isolation control signal, make the open channel of its switching analoging switch, each path analoging switch passage is all connected different resistance, and each paths is all connected to output terminal and the input end of enlarge leadingly.Isolation amplify after signal to export to AD conversion be digital signal, and digital signal be sent to microprocessor store, be sent to spacecraft Data transfer system.The value that the unlatching of passage is sampled by the AD that microprocessor receives judges, sends different signals automatically cut shelves to different light-coupled isolations according to the different range of value.
As shown in Figure 2, the driving circuit of voltage scanning module is by operational amplifier, and NPN triode and PNP triode are formed.Compared with general amplifying circuit, this circuit is using the expansion of the triode of rear class as backfeed loop, when 6 pin of operational amplifier U1 are timing, Vb1 (base voltage of Q1) >Ve1 (emitter voltage of Q1) in Q1, triode ON, Vc1 (collector voltage of Q1)=100V, in Q3, Ve3 (emitter voltage of Q3) >Vb3 (base voltage of Q3), Q3 conducting, then export as 200V, break through U1 and to power the restriction of 15V.Otherwise when 6 pin of U1 are for time negative, Ve2 (emitter voltage of Q2) >Vb2 (base voltage of Q2) in Q2, Q2 conducting, Vc2 (collector voltage of Q2)=-100V, now in Q4, Vb4 (base voltage of Q4) >Ve4 (emitter voltage of Q4), Q4 conducting, then export as-200V.In figure, C303 carries out a filter action to output signal.It is larger that analysis shows that signal can amplify by this amplification mode, breaks through the restriction of operational amplifier supply voltage, add output power simultaneously.This mode power attenuation is lower compared with general power amplifier, amplification effect, stability, and noise etc. are all better.From mode of operation, DA output ± 5V scanning voltage is amplified to ± 200V by the function of above-mentioned driving circuit.
Automatically cut grade modular circuit to be made up of light-coupled isolation and analog switch.Due to excessive across resistance two ends common mode voltage, directly cannot pass through analog switch, therefore need the ground of analog switch is suspended (being defined as scanning voltage by its reference), pass through the signal of analog switch so just in the power supply voltage range of analog switch, and the control signal of analog switch also needs the trigger condition using could meet switch as reference ground with suspending, light-coupled isolation just plays this effect, the signal sent to by microprocessor rises to scanning voltage+12V, meeting analog switch can triggered as normal under different reference voltages, when microprocessor receives the real time data of AD collection, by carrying out the switching of control signal to the judgement of data value, thus realize the switching of gear.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted.Although with reference to embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, modify to technical scheme of the present invention or equivalent replacement, do not depart from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (4)
1. for a monitoring device for plasma potential in space environment, it is characterized in that, comprising: potentiometric sensor, microprocessor, D/A converter, A/D converter, high-voltage amplifier, prime amplifier and isolated amplifier; Described Microprocessor S3C44B0X D/A converter exports scanning voltage, and described high-voltage amplifier is used for after scanning voltage high voltage amplifier, inputs to potentiometric sensor by prime amplifier; The current signal of generation with the plasma potential in space exploration environment, and is inputed to prime amplifier and isolated amplifier carries out enlarge leadingly and isolation is amplified by the driving of scanning voltage by described potentiometric sensor successively; Described A/D converter is used for the current signal exported from isolated amplifier to carry out analog to digital conversion, and the digital signal of generation is inputed to microprocessor; The digital signal of collection exports by described microprocessor.
2. the monitoring device for plasma potential in space environment according to claim 1, is characterized in that, the scanning voltage after described high-voltage amplifier amplifies is ± 200V.
3. the monitoring device for space environment plasma potential according to claim 1, is characterized in that described monitoring device adopts areal survey.
4. the monitoring device for plasma potential in space environment according to claim 1, is characterized in that, described monitoring device also comprises light-coupled isolation and analog switch; Described light-coupled isolation is used for the signal potential cutting grade signal to suspend, and described analog switch is used for the quick switching of gear.
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| CN201510188602.9A CN104793043B (en) | 2015-04-20 | 2015-04-20 | A kind of monitoring device for space environment plasma current potential |
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| CN104793043B CN104793043B (en) | 2019-01-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105636328A (en) * | 2015-12-25 | 2016-06-01 | 北京理工大学 | Electret-based plasma density measurement system and measurement method |
| CN105823922A (en) * | 2016-03-17 | 2016-08-03 | 国家电网公司 | AC charged induction device |
| CN109803475A (en) * | 2017-11-15 | 2019-05-24 | 中国科学院国家空间科学中心 | A kind of device for establishing detector reference potential in space plasma environment |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0320947A2 (en) * | 1987-12-17 | 1989-06-21 | Sentech Corporation | Halogen monitoring apparatus |
| CN2354140Y (en) * | 1998-09-08 | 1999-12-15 | 华南师范大学 | Plasma ion-energy measuring and analyzing instrument |
| US20050083065A1 (en) * | 2003-10-02 | 2005-04-21 | Hitachi Cable, Ltd. | Plasma potential measuring method and apparatus, and plasma potential measuring probe |
| JP3759103B2 (en) * | 2002-12-24 | 2006-03-22 | 北斗電子工業株式会社 | Ion detector |
| CN101158712A (en) * | 2007-09-17 | 2008-04-09 | 西安交通大学 | Measurement mechanism and measurement method of ferroelectric materials electric hysteresis loop wire |
| RU2009103510A (en) * | 2009-02-02 | 2010-08-10 | Владимир Павлович Гончаренко (RU) | DEVICE FOR MEASURING AC IN HIGH VOLTAGE CIRCUIT, METHOD FOR MEASURING AC |
| CN101923131A (en) * | 2010-02-05 | 2010-12-22 | 哈尔滨工业大学 | Satellite electric signal monitoring system |
| CN102087334A (en) * | 2009-12-04 | 2011-06-08 | 北京广利核系统工程有限公司 | High-reliability digital quantity acquisition system |
| CN102099892A (en) * | 2008-07-17 | 2011-06-15 | 奎托斯分析有限公司 | TOF mass spectrometer for stigmatic imaging and associated method |
| CN202119795U (en) * | 2011-07-06 | 2012-01-18 | 苏州海兹思纳米科技有限公司 | High voltage amplifier for driving piezoelectric ceramics scanner |
| CN102650663A (en) * | 2011-02-28 | 2012-08-29 | 中国科学院空间科学与应用研究中心 | Method for acquiring voltage-current characteristic curve of plasma |
| CN102944721A (en) * | 2012-11-25 | 2013-02-27 | 中国航天科技集团公司第五研究院第五一〇研究所 | Ionic current collection test device and method for satellite tail regions |
| CN103576003A (en) * | 2013-11-21 | 2014-02-12 | 中国科学院空间科学与应用研究中心 | Radioactive source based portable space electric field detector and measuring method thereof |
| CN103604979A (en) * | 2013-11-29 | 2014-02-26 | 北京卫星环境工程研究所 | Detector based on capacitor voltage distribution and detecting method thereof |
| CN103954988A (en) * | 2014-04-03 | 2014-07-30 | 中国科学院高能物理研究所 | Space particle detector and data collecting and processing method thereof |
-
2015
- 2015-04-20 CN CN201510188602.9A patent/CN104793043B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0320947A2 (en) * | 1987-12-17 | 1989-06-21 | Sentech Corporation | Halogen monitoring apparatus |
| CN2354140Y (en) * | 1998-09-08 | 1999-12-15 | 华南师范大学 | Plasma ion-energy measuring and analyzing instrument |
| JP3759103B2 (en) * | 2002-12-24 | 2006-03-22 | 北斗電子工業株式会社 | Ion detector |
| US20050083065A1 (en) * | 2003-10-02 | 2005-04-21 | Hitachi Cable, Ltd. | Plasma potential measuring method and apparatus, and plasma potential measuring probe |
| CN101158712A (en) * | 2007-09-17 | 2008-04-09 | 西安交通大学 | Measurement mechanism and measurement method of ferroelectric materials electric hysteresis loop wire |
| CN102099892A (en) * | 2008-07-17 | 2011-06-15 | 奎托斯分析有限公司 | TOF mass spectrometer for stigmatic imaging and associated method |
| RU2009103510A (en) * | 2009-02-02 | 2010-08-10 | Владимир Павлович Гончаренко (RU) | DEVICE FOR MEASURING AC IN HIGH VOLTAGE CIRCUIT, METHOD FOR MEASURING AC |
| CN102087334A (en) * | 2009-12-04 | 2011-06-08 | 北京广利核系统工程有限公司 | High-reliability digital quantity acquisition system |
| CN101923131A (en) * | 2010-02-05 | 2010-12-22 | 哈尔滨工业大学 | Satellite electric signal monitoring system |
| CN102650663A (en) * | 2011-02-28 | 2012-08-29 | 中国科学院空间科学与应用研究中心 | Method for acquiring voltage-current characteristic curve of plasma |
| CN202119795U (en) * | 2011-07-06 | 2012-01-18 | 苏州海兹思纳米科技有限公司 | High voltage amplifier for driving piezoelectric ceramics scanner |
| CN102944721A (en) * | 2012-11-25 | 2013-02-27 | 中国航天科技集团公司第五研究院第五一〇研究所 | Ionic current collection test device and method for satellite tail regions |
| CN103576003A (en) * | 2013-11-21 | 2014-02-12 | 中国科学院空间科学与应用研究中心 | Radioactive source based portable space electric field detector and measuring method thereof |
| CN103604979A (en) * | 2013-11-29 | 2014-02-26 | 北京卫星环境工程研究所 | Detector based on capacitor voltage distribution and detecting method thereof |
| CN103954988A (en) * | 2014-04-03 | 2014-07-30 | 中国科学院高能物理研究所 | Space particle detector and data collecting and processing method thereof |
Non-Patent Citations (8)
| Title |
|---|
| 丁松鹤 等: "空间环境等离子体诊断仪器设计", 《第二十四届全国空间探测学术交流会论文摘要集》 * |
| 冯晓珍 等: "用于等离子体电位测量的电容探针和发射探针", 《核聚变与等离子体物理 》 * |
| 刘超 等: "Langmuir探针探测空间等离子体的分析", 《中国空间科学学会空间探测专业委员会第十七次学术会议论文集》 * |
| 晋荣: "快速静电探针测量仪的设计和开发", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 曾昭宪 等: "一种测量空间等离子体的一体化双Langmuir探针方案", 《中国空间科学学会空间探测专业委员会第十九次学术会议论文集（上册）》 * |
| 牛田野: "特殊等离子体环境物理信息获取与处理的研究", 《中国博士学位论文全文数据库 信息科技辑》 * |
| 程炳钧 等: "非接触式表面电位探针设计与研制概述", 《航天器环境工程》 * |
| 胡云: "MIT磁层星电场探测仪的传感器和前端信号放大系统研究", 《中国优秀硕士学位论文全文数据库 基础科学辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105636328A (en) * | 2015-12-25 | 2016-06-01 | 北京理工大学 | Electret-based plasma density measurement system and measurement method |
| CN105636328B (en) * | 2015-12-25 | 2017-10-20 | 北京理工大学 | A kind of plasma density measurement system and its measuring method based on electret |
| CN105823922A (en) * | 2016-03-17 | 2016-08-03 | 国家电网公司 | AC charged induction device |
| CN105823922B (en) * | 2016-03-17 | 2019-01-08 | 国家电网公司 | Hum bar electrical induction device |
| CN109803475A (en) * | 2017-11-15 | 2019-05-24 | 中国科学院国家空间科学中心 | A kind of device for establishing detector reference potential in space plasma environment |
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| CN104793043B (en) | 2019-01-25 |
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