| US 11,747,306 B2 | ||
| Pipeline structural fault diagnosis apparatus and diagnosis method | ||
| Hong Zhang, Beijing (CN); Xiaoben Liu, Beijing (CN); Tong Shi, Beijing (CN); Honglin Zhao, Beijing (CN); Chengqi Liu, Beijing (CN); and Jie Liu, Beijing (CN) | ||
| Assigned to China University of Petroleum - Beijing, Beijing (CN) | ||
| Filed by CHINA UNIVERSITY OF PETROLEUM-BEIJING, Beijing (CN) | ||
| Filed on Mar. 9, 2022, as Appl. No. 17/690,475. | ||
| Application 17/690,475 is a continuation of application No. PCT/CN2021/127883, filed on Nov. 1, 2021. | ||
| Claims priority of application No. 202111110028.7 (CN), filed on Sep. 18, 2021. | ||
| Prior Publication US 2023/0104546 A1, Apr. 6, 2023 | ||
| Int. Cl. G01N 29/04 (2006.01); F16L 55/40 (2006.01); G01N 29/12 (2006.01); F16L 101/30 (2006.01) | ||
| CPC G01N 29/043 (2013.01) [F16L 55/40 (2013.01); G01N 29/048 (2013.01); G01N 29/12 (2013.01); F16L 2101/30 (2013.01)] | 10 Claims |
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1. A pipeline structural fault diagnosis apparatus comprising:
a signal generating apparatus, the signal generating apparatus comprising a moving member and a knocking member arranged on the moving member, the moving member configured to move along an inner wall of a pipeline, and the knocking member configured to knock the inner wall of the pipeline to generate an acoustic wave signal; a signal collecting apparatus connected with the moving member, the signal collecting apparatus configured to collect the acoustic wave signal; a signal storage apparatus connected with the signal collecting apparatus, the signal storage apparatus configured to store the acoustic wave signal for a signal processing and analyzing apparatus to analyze and determine a fault type, a fault degree, and a fault position. |