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- W2984202330 endingPage "035102" @default.
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- W2984202330 abstract "In engineering welding structures, crack defects easily occur due to various materials and joint forms. In this paper, to ensure structural safety, a microstrip antenna sensor line array was designed and analyzed for monitoring of weld cracks. The crack monitoring sensitivity of the antenna sensor is defined as the amount of antenna frequency shift for 1 mm of crack length growth. The patch size was determined to be 100 60 mm, which was based on the influence of patch size on sensor monitoring sensitivity. The distance of array elements was determined by the experiments of array element distance and crack propagation. The line array of microstrip antenna sensor was fabricated, and the experiment of weld crack identification was performed. The signals of each array element were distinguished according to the principle of delay line. The experimental results show that the sensor array can accurately identify the weld crack location according to the shift of resonant frequency. And the crack monitoring sensitivity of the sensor array reaches about 5 MHz/mm." @default.
- W2984202330 created "2019-11-22" @default.
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- W2984202330 date "2019-12-11" @default.
- W2984202330 modified "2023-10-16" @default.
- W2984202330 title "Research on weld surface notch monitoring based on microstrip antenna sensor array" @default.
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- W2984202330 doi "https://doi.org/10.1088/1361-6501/ab554c" @default.
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