USA flag logo/image

An Official Website of the United States Government

A HOLOGRAPHIC INTERFEROMETER SPECTROMETER FOR HYPERSONIC FLOW

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
12031
Program Year/Program:
1990 / SBIR
Agency Tracking Number:
12031
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
MetroLaser, Inc.
22941 Mill Creek Drive Laguna Hills, CA 92653-1215
View profile »
Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1990
Title: A HOLOGRAPHIC INTERFEROMETER SPECTROMETER FOR HYPERSONIC FLOW
Agency: NASA
Contract: N/A
Award Amount: $49,950.00
 

Abstract:

HOLOGRAPHIC INTERFEROMETRY, WIDELY USED FOR DIAGNOSIS OF FLOW FIELDS, PROVIDES AN INSTANTANEOUS, THREE-DIMENSIONAL DENSITY DISTRIBUTION BY OBSERVATION OF THE FRINGE VARIATIONSOF AN INTERFEROGRAM. WHEN OPTICAL PATH-LENGTH CHANGES ARE MUCH LESS THAN A WAVELENGTH OF LIGHT, THE FLOW FIELD CAN BE EASILY OBSERVED. WHEN OPTICAL PATH-LENGTH CHANGES ARE MUCH LESS THAN A WAVELENGTH OF LIGHT, THE PROBLEM IS COMPLICATED SINCE FRINGE SHIFTS ARE BARELY VISIBLE. A PROBLEM OF CURRENT CRITICAL INTEREST IN AERODYNAMICS IS THE DIAGNOSIS OF HYPERSONIC FLOWS INVOLVING LOW DENSITIES, SHORT PATH- LENGTHS, AND THE MIXING OF FLOWS. AS A RESULT, IMPROVED SENSITIVITY AND THE ABILITY TO DISTINGUISH CONSTITUENTS ARE NEEDED. THIS PROJECT COMBINES UNIQUE AND INNOVATIVE CONCEPTS WITH STATE-OF-THE-ART HARDWARE TO IMPROVE SENSITIVITY AND INFORMATION CONTENT BY ORDERS OF MAGNITUDE OVER CURRENT SYSTEMS. SPECIFICALLY, THE INNOVATIONS INCLUDERECORDING THE FOURIER TRANSFORM AT RESONANCE WITH TURNABLE OR MULTIPLE WAVELENGTH LASERS AND RECONSTRUCTING WITH A NEW PHASE SHIFTING TECHNIQUE. THIS SYSTEM WILL HAVE APPLICATIONS IN INDUSTRIES REQUIRING FLOW DIAGNOSES IN HYPERSONIC WIND TUNNELS, COMBUSTION FACILITIES, AND OTHER TYPES OF TEST FACILITIES.

Principal Investigator:

James D. Trolinger
Director Research
7145530688

Business Contact:

Cecil f. hess
DIRECTOR OF ENGINEERING
7145530688
Small Business Information at Submission:

Metrolaser
18006 Skypark Circle #108 Irvine, CA 92714

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No