Spacecraft Cabin Particulate Monitor

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX09CA91C
Agency Tracking Number: 074344
Amount: $600,000.00
Phase: Phase II
Program: SBIR
Awards Year: 2009
Solicitation Year: 2007
Solicitation Topic Code: X3.03
Solicitation Number: N/A
Small Business Information
45 Manning Road, Billerica, MA, 01821-3976
DUNS: 030817290
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Andrew Freedman
 Principal Investigator
 (978) 663-9500
Business Contact
 Andrew Freedman
Title: Business Official
Phone: (978) 663-9500
Research Institution
We have built and tested an optical extinction monitor for the detection of spacecraft cabin particulates. This sensor sensitive to particle sizes ranging from a few nanometer to tens of micrometers in diameter. Designed to utilize commercial off- the-shelf components, the monitor, once calibrated, requires minimal recalibration and only periodic baseline determinations, a process which can be automated as part of the operation of the instrument. It employs no consumables. This monitor employs cavity attenuation phase shift technology and involves the use a light emitting diode coupled to a low-loss optical cavity. The Phase I project involved a proof-of-principle demonstration that demonstrated a sensitivity of less than 0.1 micrograms per cubic meter. During the Phase II project, a prototype sensor will be delivered to NASA for the purpose of laboratory and field measurements. A major goal will be to miniaturize the monitor.

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

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