宇航计测技术 ›› 2021, Vol. 41 ›› Issue (1): 83-88.doi: 10.12060/j.issn.1000-7202.2021.01.15

• 计量保障技术 • 上一篇    下一篇

发动机尾焰微波衰减测试方法研究

曹月;孙小续   

  1. 北京无线电计量测试研究所,北京 100039
  • 出版日期:2021-02-25 发布日期:2022-03-07
  • 作者简介:曹月(1995.07-),女,助理工程师,硕士,主要研究方向:无线电计量技术。

Research on Measurement Method of Microwave Attenuation of Motor Plume

CAO Yue;SUN Xiao-xu   

  1. Beijing Institute of Radio Metrology and Measurement,Beijing 100039
  • Online:2021-02-25 Published:2022-03-07

摘要: 基于发动机试验环境,研究了发动机尾焰微波衰减的测试方法,搭建了一套微波衰减测试系统,能够实现多频点测量,并对发动机尾焰微波衰减测试系统的研究路线、测试原理、硬件组成、现场布局、测试系统定标技术、测量设备不确定度、试验结果进行了介绍;试验结果表明,该测试系统具有较好的测试效果,测试精度能够满足要求。经过现场试验获得大量实测数据,通过有效的数据处理,能够预估发动机尾焰对微波信号传输的影响。

关键词: 发动机尾焰, 微波衰减, 测试方法, 定标技术, 不确定度, 试验验证

Abstract: In this paper,a measurement method of microwave attenuation of motor plume is researched.A microwave attenuation measurement system is built based on the motor experimental environment,and this system can realize multi-frequency point measurement.The studying way,test principle,hardware composition,field layout,calibration technology,uncertainty of measurement equipment and experimental results of the system are introduced.The experimental results show that the measurement system has a good measuring effect,and the precision meets the requirements.A large number of measurement data were obtained after field tests,we can estimate the influence of motor plume on microwave signal transmission through effective data processing.

Key words: Motor plume, Microwave attenuation, Measurement method, Calibration technology, Uncertainty, Experimental verification

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