本文選題：航天器磁測試 + LabVIEW��； 參考：《北華航天工業(yè)學院》2017年碩士論文

【摘要】：本課題基于LabVIEW和虛擬儀器技術(shù),結(jié)合計算器系統(tǒng)的數(shù)據(jù)處理能力研制了一套磁測試數(shù)據(jù)采集與處理系統(tǒng),并將磁測試結(jié)果顯示在計算機上。磁測試數(shù)據(jù)采集系統(tǒng)是一種通過測量衛(wèi)星等航天器周圍磁場實現(xiàn)航天器磁矩測試的一種測試系統(tǒng),在進行測試時通過轉(zhuǎn)動轉(zhuǎn)臺測得航天器各角度的磁場值,并對采集到的多個傳感器的數(shù)據(jù)進行反演計算得到航天器三個軸向的磁矩值。該系統(tǒng)結(jié)合了國內(nèi)主要的磁測試方式,不僅能實現(xiàn)地磁環(huán)境下實現(xiàn)航天器剩磁、感磁測試還能夠滿足小型航天器及單機部件的特殊要求實現(xiàn)零磁環(huán)境下的剩磁測試。系統(tǒng)分硬件和軟件兩部分,硬件部分采用了NI成熟的硬件數(shù)據(jù)采集方案和自帶信號調(diào)理電路的高精度磁通門傳感器以滿足快速開發(fā)、輕量化、小型化的要求;軟件部分采用LabVIEW模塊化編程思想,按照一字型測試、L型測試和零磁測試三種測試模式實現(xiàn)測試系統(tǒng)界面的控制、數(shù)據(jù)采集與數(shù)據(jù)處理,完成地磁環(huán)境下的剩磁和感磁測試以及零磁環(huán)境下的剩磁測試。經(jīng)測試,該系統(tǒng)能夠達到1%的測試精度,穩(wěn)定性可達0.5nT/4h,地磁環(huán)境下的環(huán)境波動控制可達1nT,具有良好的測試性能,能夠滿足現(xiàn)階段航天器對磁測試設備的應用要求。
[Abstract]:Based on LabVIEW and virtual instrument technology, a magnetic test data acquisition and processing system is developed in combination with the data processing ability of computer system, and the magnetic test results are displayed on the computer. The magnetic testing data acquisition system is a kind of testing system that can measure the magnetic moment of spacecraft by measuring the magnetic field around the satellite and other spacecraft. The magnetic field of each angle of the spacecraft is measured by rotating turntable during the test. The three axial magnetic moments of the spacecraft are obtained by inversion of the collected data of multiple sensors. The system not only realizes the residual magnetism of spacecraft in geomagnetic environment, but also can meet the special requirements of small spacecraft and single machine components to realize the residual magnetic test in zero magnetic environment. The system is divided into two parts: hardware and software. The hardware part adopts NI mature hardware data acquisition scheme and high precision fluxgate sensor with signal conditioning circuit to meet the requirements of rapid development, lightweight and miniaturization. In the software part, LabVIEW modular programming idea is used to realize the interface control, data acquisition and data processing of the test system according to the three test modes of one font test L type test and zero magnetic test. The remanence and inductance measurements in geomagnetic environment and the remanent magnetic test in zero magnetic environment are completed. The test results show that the system can achieve 1% testing accuracy, the stability can reach 0.5 NT / 4 h, and the environmental fluctuation control under geomagnetic environment can reach 1 NT. The system has good testing performance and can meet the requirements of the application of spacecraft to magnetic testing equipment at present.
【學位授予單位】：北華航天工業(yè)學院
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TP274.2

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