A compact, low cost, in- process welding defects detection system based on thermal plasma emission

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$69,999.00
Award Year:
2008
Program:
SBIR
Phase:
Phase I
Contract:
N65538-08-M-0149
Award Id:
87827
Agency Tracking Number:
N082-178-0481
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
28 Hillstream Road, Newark, DE, 19711
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
808480086
Principal Investigator:
Pengcheng Lv
Senior Scientist
(302) 294-0116
pengcheng@alphasense.net
Business Contact:
Xin Zhang
President
(302) 999-3422
xin@alphasense.net
Research Institution:
n/a
Abstract
In this proposal, AlphaSense, Inc. (AI) and the University of Michigan (UM) detail the development of a compact, portable, and low cost in-process weld defects detection system. Key innovations of the proposed system include: a) weld defects monitoring based on plasma emission characteristics; b) use the electron temperature of the plasma as an indicator of the weld quality, c) use multiple plasma emission lines to enhance the system sensitivity, and d) the development and application of a Continuous Wavelet Transform (CWT) based peak detection algorithm to enhance the sensor sensitivity, and to reveal plasma emission signatures associated with contaminations. With these innovations, we expect that the final product of this proposal will be a compact (~4x4x2 inches), light weight (~1lb), low cost (<$1K/ unit if produced in small volume), and wearable sensor.

* information listed above is at the time of submission.

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