Two-dimensional Interferometric Temperature Sensor

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$70,000.00
Award Year:
2001
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
51941
Agency Tracking Number:
NASA900
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1570 Pacheco Street, Suite E-11, Santa Fe, NM, 87505
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Jeffrey Goldmeer
Senior Research Scientist
(505) 984-1322
goldmeer@swsciences.com
Business Contact:
Dr. Alan C Stanton
President
(505) 984-1322
astanton@swsciences.com
Research Institute:
n/a
Abstract
Southwest Sciences proposes to apply a novel, yet simple non-invasive technique, Point Diffraction Interferometry (PDI), to provide highly accurate and precise two-dimensional temperature profiles. This proposed instrument can provide reliable and robust temperature measurements that are required for propulsion test operations, including facility and test article health monitoring. Unlike invasive techniques, such as thermocouples which only provide point data measurements, a PDI system produces two-dimensional temperature profiles without disturbing the test flow field. Other non-invasive techniques could be used, however, many only provide point measurements or one-dimensional profiles, are optically complex, or involve a nonlinear analysis. PDI is a self-referencing technique, inherently stable, and relatively insensitive to vibration. We expect to achieve temperature uncertainties less than 20 K at propulsion exhaust temperatures. This technique uses visible light, simple optics and is easy to align and operate; collimated light sources and imaging detectors in the visible are inexpensive and commercially available.

* information listed above is at the time of submission.

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