Device for prediction underground behavior by using acoustic emission sensor and producing method thereof
US8904870B2 · kind B2 · utility
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2References
13Claims
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Key dates
| Filing date | Aug 31, 2012 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Apr 14, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is a device for predicting an underground behavior by using an acoustic emission (AE) sensor, including: a waveguide rod having an elongated end to be inserted in a borehole; a plurality of acoustic emission sensors mounted on different positions of the waveguide rod; a wrapping layer configured to cover a circumferential surface of the waveguide rod such that a gap is formed between the waveguide rod and the wrapping layer; an acoustic emission generating layer filled into the gap and being homogeneous along a direction of the waveguide rod; and a grouting layer configured to fix the waveguide rod in the borehole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.