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Capillary Absorption Spectrometer for In-Situ, Underwater Gas Analysiss

Award Information
Agency: Department of Commerce
Branch: National Oceanic and Atmospheric Administration
Contract: WC-133R-17-CN-0058
Agency Tracking Number: 16-2-044
Amount: $400,000.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: 8.2.6R
Solicitation Number: NOAA-2016-2
Timeline
Solicitation Year: 2017
Award Year: 2017
Award Start Date (Proposal Award Date): 2017-05-24
Award End Date (Contract End Date): 2019-05-21
Small Business Information
19805 Hamilton Avenues, Inc, Torrance, CA, 90502
DUNS: 625511050
HUBZone Owned: Unavailable
Woman Owned: Unavailable
Socially and Economically Disadvantaged: Unavailable
Principal Investigator
 Jason  Kriesel
 (310) 756-0520
 jason@oksi.com
Business Contact
 Jason  Kriesel
Phone: (310) 756-0520
Email: jason@oksi.com
Research Institution
N/A
Abstract
We will produce a prototype Capillary Absorption Spectrometer (CAS) capable of measuring dissolved methane in water. The concept utilizes mid-infrared laser absorption spectroscopy within a hollow fiber optic capillary that both confines a gas sample and acts as an optical waveguide. A tunable laser beam propagates through the hollow fiber to a detector with near unity overlap between the beam and the analyte. The CAS can perform fast (~ 1s) and precise (isotope ratio ~ 1 0/00) measurements within the ultra-small sample volume (V ~ 1 mL) of the hollow fiber, and the concept is amenable to requirements for size, weight, and power necessary for in-situ analysis at depth. In this Phase II project, the proven concept will be developed into a field capable prototype for methane concentration and methane isotope analysis. The system will employee degassing of discrete water sample instead of a membrane, which is possible due to the ultra-small sample volume of the CAS. The concept is versatile and general and can also be applied to a wide range of other molecular species, including higher-C hydrocarbons, CO2, SO2, NOx, and a wide range of VOCs.

* Information listed above is at the time of submission. *

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