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首页> 外文期刊>Journal of propulsion and power >Fragmentation in Time-of-Flight Spec-trometry-Based Calculations of Ionic Electrospray Thruster Performance
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Fragmentation in Time-of-Flight Spec-trometry-Based Calculations of Ionic Electrospray Thruster Performance

机译：基于飞行时间光谱的离子电喷雾推进器性能计算中的碎片化

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摘要

A method has been presented for accounting for ion fragmentation that occurs within the nonzero field of an ionic electrospray thruster. Given the complexities associated with direct thrust measurements, indirect means (and time-of-flight (TOF) in particular) remain a primary method for researchers to evaluate performance. It has been shown, through examples and reflections on results reported in the literature, that such performance calculations should consider fragmentation to increase the accuracy of reported results. The described method applies to measurements made with Faraday cup type detectors and requires an assumption as to the specific fragmentation events that occur, yet it is otherwise easily applied through modifiers to the integrands used to calculate thrust and mass flow rate from TOF traces. Energy-resolved TOF measurements could segregate contributions and provide improved fidelity but may be convoluted by further fragmentation within the filtering instruments and add system complexity when compared with this analytical approach.
机译：已经提出了一种用于解决在离子电喷雾推进器的非零场内发生的离子碎裂的方法。考虑到直接推力测量的复杂性，间接手段（尤其是飞行时间（TOF））仍然是研究人员评估性能的主要方法。通过实例和对文献报道结果的反思表明，这种性能计算应考虑分散化，以提高报道结果的准确性。所描述的方法适用于使用法拉第杯型检测器进行的测量，并且需要对发生的特定碎片事件进行假设，但通过修饰剂可以轻松地将其应用于用于从TOF迹线计算推力和质量流率的被积物。与该分析方法相比，能量分辨的TOF测量可以隔离作用并提供更高的保真度，但可能会因过滤工具内的进一步碎片化而卷积，并增加系统复杂性。

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    《Journal of propulsion and power》 |2015年第5期|1500-1504|共5页
  • 作者

    Daniel G. Courtney; Herbert Shea;

  • 作者单位

    Ecole Polytechnique Federate de Lausanne, 2002 Neuchatel, Switzerland;

    Ecole Polytechnique Federate de Lausanne, 2002 Neuchatel, Switzerland;

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  • 正文语种 eng
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