Light Deflection Wind Mapper

Award Information
Agency:
Department of Transportation
Branch
n/a
Amount:
$74,963.00
Award Year:
2001
Program:
SBIR
Phase:
Phase I
Contract:
DTRS57-01-C-10017
Agency Tracking Number:
DTRS57-01-C-10017
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Science Research Laboratory Inc
15 Ward Street, Somerville, MA, 02143
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
A new optical sensor to map wind speeds with millimeter resolution will be detailed and demonstrated. The instrument works by detecting the deflection of light by gas density fluctuations. The measurement can be either spatially averaged over the propagation path of the beam or spatially localized in three dimensions by monitoring the cross-correlation between the signals from two intersecting laser beams. This technique does not depend on scattering from particulates, so nothing need be added to the flow. The measurement can be calibrated absolutely and the transverse flow velocity is determined from the peak frequency in the signal spectrum and the spatial scale size setting. In Phase I the new device will be demonstrated and characterized; alternative techniques, such as imaging methods, will be assessed for possible combination with this method; and an optimized instrument will be designed for fabrication and delivery to FHWA during Phase II

* information listed above is at the time of submission.

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