Recommended Practice for Use of Emissive Probes in Electric Propulsion Testing
Recommended Practice for Use of Emissive Probes in Electric Propulsion Testing
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DOI：
10.2514/1.b35697
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发表时间：
2017-05
影响因子：
1.9
通讯作者：
J. Sheehan;Y. Raitses;N. Hershkowitz;M. McDonald
中科院分区：
文献类型：
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作者：
J. Sheehan;Y. Raitses;N. Hershkowitz;M. McDonald
本文提供了建议的方法，建设，操作，并采取等离子体电位测量从电子发射探头在电力推进装置，包括霍尔推进器，栅极离子发动机，和其他。详细介绍了两种主要的技术，浮点技术和拐点技术，以及校准和减少误差的方法。主要的加热方法，以及发射探针建设的各种考虑。电力推进等离子体的特殊考虑，包括高能量密度，离子流，磁场和潜在的波动。提供了探头设计和操作的建议。
This article provides recommended methods for building, operating, and taking plasma potential measurements from electron-emitting probes in electric propulsion devices, including Hall thrusters, gridded ion engines, and others. The two major techniques, the floating point technique and the inflection point technique, are described in detail as well as calibration and error-reduction methods. The major heating methods are described as well as the various considerations for emissive probe construction. Special considerations for electric propulsion plasmas are addressed, including high-energy densities, ion flows, magnetic fields, and potential fluctuations. Recommendations for probe design and operation are provided.