宇航计测技术 ›› 2023, Vol. 43 ›› Issue (1): 17-21.doi: 10.12060/j.issn.1000-7202.2023.01.04

• 量值传递技术 • 上一篇    下一篇

基于电光调制技术的脉冲场强校准方法

彭博1，王淞宇1，齐万泉1，何巍1,2   

  1. 1.北京无线电计量测试研究所，北京 100039；2.计量与校准技术重点实验室，北京 100039
  • 出版日期:2023-02-25 发布日期:2023-04-12
  • 作者简介:彭博（1987-），男，高级工程师，硕士，主要研究方向：场强与干扰、电磁场与微波技术。

A Calibration Method of Pulse-modulation Electromagnetic Field based on Electro-optic Technology

PENG Bo1,WANG Song-yu1,QI Wan-quan1,HE Wei1,2   

  1. 1.Beijing Institute of Radio Metrology and Measurement,Beijing 100039,China;2.Key Laboratory of Measurement and Calibration Technology,Beijing 100039,China
  • Online:2023-02-25 Published:2023-04-12

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摘要： 研究脉冲场强的校准方法，分析S频段脉冲场强产生原理和校准装置组成。通过基于电光调制技术的铌酸锂光波导传感器法对脉冲功率产生的峰值场强进行测量，峰值场强（1~3）kV/m，脉宽（10~100）μs，占空比1 %~10 %，上升/下降时间小于100 ns，场强幅值测量偏差小于1 dB。通过分析不确定度来源对测量不确定度进行了评定，扩展不确定度1.7 dB。最后采用接收天线法对光波导传感器法的脉冲场强校准结果进行了验证。

关键词: 脉冲调制场, 铌酸锂光波导传感器, 场强测量

Abstract: A calibration method of pulse modulation field strength was researched.S-band pulse modulation field strength generation principle and calibration apparatus composition were analyzed,and a LiNbO3optic-waveguide sensor method based on electro-optic technology were used for measurement of peak-field.Measurement results included peak field intensity of (1~3)kV/m,pulse width of (10~100)μs,duty cycle of 1 % to 10 %,rising/falling time less than 100 ns,and maximum deviation of field intensity amplitude of 0.9 dB.The measurement uncertainty was evaluated by analyzing the source of uncertainty ,and the expanded uncertainty is 1.7 dB.Finally,the pulse field intensity calibration results of optic-waveguide sensor method were verified by reception antenna method,and measurement results met testing requirements.

Key words: Pulse-modulation field, LiNbO3 optic-waveguide sensor, Electric field measurement

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