A Laser-Based Device for Work Site Stability Assessment

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: 2R44OH007662-02
Agency Tracking Number: OH007662
Amount: $749,799.00
Phase: Phase II
Program: SBIR
Awards Year: 2006
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
60 MECHANIC ST., LEBANON, NH, 03766
DUNS: 926153578
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 XIAOQING SUN
 (603) 448-6177
 WOODWALL03@AOL.COM
Business Contact
 XIAOQING SUN
Phone: () -
Email: woodwall03@aol.com
Research Institution
N/A
Abstract
DESCRIPTION (provided by applicant): Summary: A laser-based acoustic emission (AE) detection device is proposed for work site structural stability assessment. This new device will take advantage of innovations in laser ultrasonics, artificial intelligence (Al) and advanced acoustic emission technology to provide mine workers with a unique instant, real time stability assessment of immediate rock structures in the working environment, which was not attainable in the past. Nonlinear optical interferometry bas ed on two-wave mixing / photo-induced electromotive force techniques will be used for AE signal detection from rock structures in mine sites. Al criteria will be established by wave pattern recognition to identify unstable areas in mine sites. This researc h will also result in a unique non-contact monitoring device for acoustic emission/microseismic studies, which will be very useful in many areas of application. The primary objective of the Phase II research is to develop the prototype of the AE detector a nd test it in real-world mining facilities. The primary objective consists of six specific aims: 1. instrumentation development, 2. pre-field experiment preparation, 3. in-situ data collection, 4. Al criteria development, 5. system integration and in-situ trial, and 6. documentation and reporting. Relevance to Public Health: The innovation will contribute to a reduction the occupational injuries and fatalities caused by roof falls, sidewall crumples, stope collapses, and slope slides, etc., in the mining in dustry. The research and development addresses the miner's safety and contributes to ensuring the mineworker's right to safe and healthful working conditions (Occupational Safety and Health Act of 1970).

* Information listed above is at the time of submission. *

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