High Power Laser and Particle Beams, Volume. 33, Issue 12, 123023(2021)
Evaluation of measurement uncertainty about power density for high power microwave effects test
Figures & Tables(6)
Fig. 2. Fish bone diagram of input quantities for power density measurement uncertainty
Fig. 3. Measurement evaluation layout for quantity of influence of test environment
Fig. 4. Measurement evaluation layout for quantity of location deviation
Table 1. Type B evaluation parameters of measurement uncertainty about power density for high power microwave effects test
View tableView in ArticleTable 1. Type B evaluation parameters of measurement uncertainty about power density for high power microwave effects test
uncertainty quantity distribution k-value sensitivity coefficient relative standard uncertainty/dB relative standard uncertainty/% detection power ${P_{ {\text{det} } } }$ triangular $ \sqrt{6} $ 1 0.46 10.58 link attenuation $ {A'} $ normal 2 1 1.20 27.60 receiving gain $ {G_{\text{r}}} $ rectangular $ \sqrt{3} $ −1 0.87 19.92 location deviation $ {A_{\text{l}}} $ rectangular $ \sqrt{3} $ 1 0.14 3.31 frequency drift $ f $ rectangular $ \sqrt{3} $ 2 0.06 1.41 aiming deflection $ {A_{\text{d}}} $ rectangular $ \sqrt{3} $ 1 0.14 3.31 polarization mismatch ${A_{\text{P}}}$ rectangular $ \sqrt{3} $ 1 0.15 3.54 connection mismatch $ {A_{\text{c}}} $ arc sine $ \sqrt{2} $ 1 0.21 4.83 influence of test environment $ {A_{{\text{te}}}} $ rectangular $ \sqrt{3} $ 1 1.22 28.06 repeatability $ {C_{\text{r}}} $ normal 2 1 0.13 2.89
Table 2. Recommended values of maximal step and minimal total length for field VSWR test
View tableView in ArticleTable 2. Recommended values of maximal step and minimal total length for field VSWR test
frequency range/GHz ΔL/cm L/cm ＜2 5.00 ±30.0 2～4 2.50 ±15.0 4～8 1.25 ±7.5 ＞8 1.00 ±6.0
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Longquan Zhong, Yu Miao, Gang Zhao, Jiangchuan Lin, Jian Sun, Hao Wu, Feng Qin, Zhiyang Yan, Zhong Liu, Yi Ge, Ying Zhang. Evaluation of measurement uncertainty about power density for high power microwave effects test[J]. High Power Laser and Particle Beams, 2021, 33(12): 123023
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Received: Jun. 7, 2021
Accepted: --
Published Online: Dec. 21, 2021
The Author Email: Miao Yu (beise_cool@163.com)
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