Flexible array for acoustic emission monitoring of circumferential cracks of pipeline circumferential weld and preparation method
The invention relates to the technical field of nondestructive testing, in particular to a flexible array for acoustic emission monitoring of circumferential cracks of a pipeline circumferential weld and a preparation method thereof, and the preparation method comprises the following steps: research...
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| creator | HU PAN HUA LIANG SHI RUNMIAO WANG SI MU ZIXUAN |
| description | The invention relates to the technical field of nondestructive testing, in particular to a flexible array for acoustic emission monitoring of circumferential cracks of a pipeline circumferential weld and a preparation method thereof, and the preparation method comprises the following steps: researching acoustic emission propagation characteristics of the circumferential cracks of the pipeline circumferential weld by means of an extended finite element method; establishing a pipeline circumferential weld circumferential crack acoustic emission array model, analyzing a beam pattern of an array, and determining the number of piezoelectric ceramic sensors; a two-column sensor topology mode is designed, and a flexible array is manufactured by means of a flexible printed circuit technology. The flexible array comprises a flexible polyimide film, a printed circuit, an SMA communication interface and eight piezoelectric ceramic sensors. The sensing array applied to circumferential crack monitoring of the circumferent |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | Flexible array for acoustic emission monitoring of circumferential cracks of pipeline circumferential weld and preparation method |
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