Non-Intrusive Continuous Wave Acoustic Flowmeter STTR Proposal

Award Information
Agency:
National Aeronautics and Space Administration
Branch:
N/A
Amount:
$99,987.00
Award Year:
2003
Program:
STTR
Phase:
Phase I
Contract:
NAS13-03018
Agency Tracking Number:
020066
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Omni Technologies, Inc.
7412 Lakeshore Drive, New Orleans, LA, 70124
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
N/A
Principal Investigator
 Sean Griffin
 (504) 288-8211
 sgriffin@otiengineering.com
Business Contact
 Sean Griffin
Title: Business Official
Phone: (504) 288-8211
Email: sgriffin@otiengineering.com
Research Institution
 Louisiana State University
 James Bates
 2513E CEBA Bldg
Baton Rouge, LA, 70803
 (225) 578-3386
 Nonprofit college or university
Abstract
Omni Technologies, Inc. (OTI) is proposing a unique acoustic method for measuring flow rate of liquid cryogens. Over the last 30 years, acoustic flowmeters have been demonstrated that non-intrusively measure flow rates in fluid filled pipes. The majority of these use pulsed time of flight techniques but none have used continuous wave (CW) techniques as is being proposed. The advantages of the proposed technique are simplicity of electronics, better signal detection capability, and continuous verses periodic measurements. This translates to a cheaper, smaller, more capable and highly accurate sensor suite. The risk of the proposed technique is reduced since proven pulsed time of flight systems use nearly identical sensor configurations and are based on the same physics. Measurement of fluid flow of liquid cryogens adds significant complexity to the sensor design due to material thermal effects but literature suggests that acoustic flowmeters are applicable for flow measurement of liquid cryogens. Upon completion of Phase I, OTI expects to have demonstrated the validity of the proposed method and have a working commercially viable flowmeter design by the end of Phase II. OTI expects the new flowmeter will provide NASA with a means to more accurately and more reliably measure cryogenic flow.

* information listed above is at the time of submission.

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