| 引用本文: | 习薇,邹纫秋,郑博文,朱悉铭,宁中喜,贾军伟,于达仁.基于发射光谱法监测小功率霍尔推力器通道侵蚀[J].哈尔滨工业大学学报,2025,57(5):67.DOI:10.11918/202405025 |
| XI Wei,ZOU Renqiu,ZHENG Bowen,ZHU Ximing,NING Zhongxi,JIA Junwei,YU Daren.Monitoring channel erosion of low-power Hall thruster based on optical emission spectroscopy method[J].Journal of Harbin Institute of Technology,2025,57(5):67.DOI:10.11918/202405025 |
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| 基于发射光谱法监测小功率霍尔推力器通道侵蚀 |
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习薇1,邹纫秋2,郑博文1,朱悉铭1,宁中喜1,贾军伟3,于达仁1
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(1.哈尔滨工业大学 能源科学与工程学院,哈尔滨 150001;2.北京航天长征飞行器研究所,北京 100076; 3.北京东方计量测试研究所,北京 100094)
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| 摘要: |
| 分析霍尔推力器在工作过程中陶瓷通道壁的侵蚀特性,对评估霍尔推力器的性能和寿命具有重要意义。传统的侵蚀评价方法主要依靠对侵蚀深度的测量,这种方法耗时长、无法提供在线实时监测以及多工况监测。为此,首先,利用具备非侵入式、原位在线特点的发射光谱法对霍尔推力器工作过程中侵蚀情况进行监测,成功监测到硼原子信号。然后,利用先进光度法基于硼原子谱线与氙原子谱线比,以及基于氙原子碰撞辐射模型计算的电子温度,对不同工况下硼原子约化浓度进行计算。结果表明,硼的约化浓度随着质量流量和电压的增大而增大,而磁场强度对硼约化浓度的影响较复杂,还需进一步研究。采用发射光谱法和先进的光度法可以实时和原位高效地评估不同操作条件下航空航天设备的侵蚀特性,对深空探测和引力波探测等关键应用中推力器的设计和寿命优化等具有指导作用。 |
| 关键词: 小功率霍尔推力器 发射光谱法 先进光度法 侵蚀产物浓度 |
| DOI：10.11918/202405025 |
| 分类号:V439 |
| 文献标识码:A |
| 基金项目:国家自然科学基金(U22B2094) |
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| Monitoring channel erosion of low-power Hall thruster based on optical emission spectroscopy method |
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XI Wei1,ZOU Renqiu2,ZHENG Bowen1,ZHU Ximing1,NING Zhongxi1,JIA Junwei3,YU Daren1
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(1.School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China; 2.Beijing Aerospace Long March Aircraft Research Institute, Beijing 100076, China; 3.Beijing Orient Institute of Measurement and Test, Beijing 100094, China)
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| Abstract: |
| The analysis of the erosion characteristics of ceramic channel walls during the operation of Hall thruster is of great significance to evaluate the performance and lifespan of Hall thruster. Traditional erosion evaluation methods mainly rely on measuring the depth of erosion, which is time-consuming and unable to provide real-time online monitoring capabilities and multi-condition monitoring. Therefore, this paper uses non-invasive and in-situ online optical emission spectroscopy to monitor the erosion during the operation of the Hall thruster, and successfully detects the boron atom signal. Then, advanced actinometry method is used to calculate the boron atom reduced concentration under different working conditions based on the ratio of xenon atomic spectral line to boron atomic spectral line and the electron temperature calculated by xenon atomic collision radiation model. The results indicate that the reduced concentration of boron increases with the increase of mass flow rate and voltage, and the influence of magnetic field intensity on the boron atom reduced concentration is complex and requires further investigation. The use of emission spectroscopy and advanced photometry enables real-time and in-situ efficient assessment of erosion characteristics of aerospace equipment under different operating conditions, provideing guidance for the design and lifetime optimization of thrusters in key applications such as deep space exploration and gravitational wave detection. |
| Key words: low-power Hall thruster optical emission spectroscopy advanced actinometry erosion product concentration |
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