Differential Photoacoustic Particle Absorption Monitor, Phase I

Metadata Updated: July 17, 2020

We propose to develop a highly sensitive and compact monitor to measure light absorption from particulate matters. The fundamental of the proposed device is based on differential photoacoustic absorption spectroscopy (DPAS). It will be able to be remotely controlled and operated at high altitude. Background interference from NO2 absorption and acoustic noise of aircraft engines will be significantly reduced due to a specific acoustic cell design.

The Phase I project will provide a proof-of-concept demonstration. The ultimate goal of this study is to design and construct a portable PM absorption monitor for NASA's airborne measurement programs. The tasks of the proposal will include:

1) Construction of a laboratory prototype DPAS PM absorption monitor; 2) Development of an absorption calibration scheme; 3) Comparative study on optical absorption of laboratory soot
particles with multi-angle absorption photometer (MAAP); and 4) Performance evaluation at a variety of sampling pressure.

This SBIR Phase study will be performed by Aerodyne Research, Inc., in collaboration with United Technologies Research Center (UTRC). Both companies have been major participants in past NASA/FAA-sponsored aircraft emissions programs with extensive experiences in the study of PM optical absorption as well as soot formation and evolution in the atmosphere.

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date August 1, 2018
Metadata Updated Date July 17, 2020

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date July 17, 2020
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_16734
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
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Harvest Object Id 5b895a22-0cbf-40e4-81e2-77b26af4ca11
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2013-11-01
Homepage URL https://techport.nasa.gov/view/16734
Data Last Modified 2020-01-29
Program Code 026:027
Source Datajson Identifier True
Source Hash 8e7cee8af967eb309e9ef2d6af51ded91e630b33
Source Schema Version 1.1

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