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Photoacoustic Sensor for High-sensitivity Measurement of Water Vapor

Award Information

Agency:
Department of Commerce
Branch:
N/A
Award ID:
99541
Program Year/Program:
2010 / SBIR
Agency Tracking Number:
10-52
Solicitation Year:
N/A
Solicitation Topic Code:
8.2.4W
Solicitation Number:
N/A
Small Business Information
MASSTECH, INC.
6992 COLUMBIA GATEWAY DR, #200 COLUMBIA, MD 21046-2985
View profile »
Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2010
Title: Photoacoustic Sensor for High-sensitivity Measurement of Water Vapor
Agency: DOC
Contract: WC133R10CN0209
Award Amount: $94,709.00
 

Abstract:

We propose to build a compact, rugged airborne laser photoacoustic spectrometric (LPAS) sensor based on a tunable mid-IR diode laser for continuous, real-time measurements of water vapor, and perform field tests to qualify it for dynamic airborne in situ monitoring of upper troposphere water vapor. An innovative diode laser frequency locking technique developed by us will be utilized for tunable diode laser wavelength stabilization. Our sensor will be based on our laboratory LPAS instrument (at technology readiness level TRL-4) that has already demonstrated successful detections of water vapor, chemicals, alcohols, and CWAs. It utilizes a tunable infrared laser (interband cascade or quantum cascade), a high sensitivity photoacoustic cell with an air sampler and an efficient algorithm to rapidly complete high sensitivity, selective multi-component measurements in under a minute. In Phase I we will carry out extensive laboratory tests of LPAS and a comprehensive analysis of the sensor performance to determine the limit of detection (LOD) and receiver operating characteristic (ROC) curves for the sensor and establish its feasibility. A rugged and portable prototype sensor (TRL-5) will be built in Phase II. It will be field tested in aircraft (TRL-6) and characterize the sensor.

Principal Investigator:

Wenhui Shi
Optical Scientist
4435391736
shi@sesi-md.com

Business Contact:

Richard Lee
Cheif Financial Officer
4435391742
rlee@apmaldi.com
Small Business Information at Submission:

Masstech, Inc.
6992 COLUMBIA GATEWAY DR Suite 200 COLUMBIA, MD 21046

EIN/Tax ID: 522333154
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No