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- Title
聚乙烯管热熔接头超声相控阵检测及检出率定量分析.
- Authors
解俊炜; 许卫荣; 王 强; 陈本瑶
- Abstract
The customized polyethylene test block was designed with transverse hole defects at depths of 10 mm. 15 mm.20 mm.25 mm.30 mm.35 mm .40 mm.whose diameters were 1 mm and 2 mm respectively. Then probability of detection ( POD) quantitative analysis method was carried out based on ultrasonic phased array technology. The results show that 2. 25 MHz probe can achieve better detection result for larger defects, compared with 5.00 MHz probe. For the 95% lower confidence bound. the 2. 25 MHz probe and 5. 00 MHz probe can inspect 1 mm diameter cross-hole defect depth of 26.21 mm and 14.98 mm with 90% POD level, respectively.
- Subjects
POLYETHYLENE; TRANSVERSE myelitis; DIAMETERS of planets; ULTRASONIC equipment; ARRAY processors
- Publication
Journal of Henan University of Science & Technology, Natural Science, 2019, Vol 40, Issue 3, p11
- ISSN
1672-6871
- Publication type
Article
- DOI
10.15926/i.cnki.issn1672-6871.2019.03.003