探究轮静电检测器特征性能

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1、CHARACTERIZINGTHEPERFORMANCEOFTHEWHEELELECTROSTATICSPECTROMETER探究轮静电检测器特征性能Abstract-AWheelElectrostaticSpectrometerhasbeendevelopedasasurveyingtooltobeincorporatedintoaplanetaryroverdesign.Electrostaticsensorswithvariousprotrudingcoverinsulatorsareembeddedintoaprot

2、otyperoverwheel.Whentheseinsulatorscomeintocontactwithasurface,achargedevelopsonthecoverinsulatorthroughtribocharging.Achargespectrumiscreatedbyanalyzingtheaccumulatedchargeoneachofthedissimilarcoverinsulators.Weeventuallyintendtoprovechargespectracanbeusedtodeterm

3、inedifferencesinplanetaryregolithproperties.Wetestedtheeffectsofresidualsurfacechargeonthecoverinsulatorsanddiscoveredaneedtodischargethesensorcoverinsulatorsaftereachrevolution.Weprovedtherepeatabilityofthemeasurementsforthissensorpackageandfoundthatthesensorrepea

4、tabilitylieswithinonestandarddeviationofthenoiseinthesignal.摘要—我们开发了一款轮静电检测器作为检测工具集成到行星探测器的设计中。有各种不同凸起外壳的静电传感器镶嵌到原型探测器的轮上。当这些传感器与任何表面接触时，因为摩擦生电传感器的外壳绝缘层上就会带电。我们通过分析聚集在每个不同的外壳绝缘层上的电荷编制了电荷谱。我们希望最终证明电荷谱可以用来区别行星表层土的不同特性。我们测验了外壳绝缘层上的残余电荷的影响并且发现每转一圈传感器外壳绝缘层需要清除一次静电。我们证明了

5、这套传感器测量的可重复性并且发现传感器的重复性处于信号中噪声标准差范围内。I.INTRODUCTIONCurrentMartiansurfaceexplorationmissionsincorporatetechnologiestostudythemineralmakeupoftheMartianregolithinsearchofvolatiles,suchasoxygen,thatareofgreatimportanceforamannedmissiontoMars.Volatilescanbeextractedfrom

6、theMartianregoliththroughIn-SituResourceUtilization(ISRU)processesandusedtomakedrinkingwaterforastronautsandfuelforthereturntriptoEarth[1].Priortoamannedmission,itisimportanttodeterminelocationandconcentrationsofthesevolatilesandminerals.Asurveyinginstrumentisneces

7、sarytooptimizetheuseofaMartianroverinsearchofthesecrucialelements.Ⅰ.简介目前的火星表面探测任务集成了多种技术在搜寻挥发物，如对载人火星任务至关重要的氧气的过程中研究火星表层土的矿物构成。挥发物可以用现场资源设备（ISRU）运行从火星表层土中提取并且用于为宇航员制造饮用水和返回地球过程的燃料【1】。在载人火星任务之前，确定这些挥发物和矿物质的位置和集中度极为重要。优化搜寻这些关键物质的火星探测器使用的勘察设备必不可少。WehavedevelopedtheWhe

8、elElectrostaticSpectrometer(WES)asapossiblesurveyingtooltobeincorporatedintoaMartianroverdesign.Electrostaticsensorswithvariouscoverinsulatorsare