Optical System for Atmospheric Particle Measurement, Phase I

Metadata Updated: May 2, 2019

To measure the broad size range of 0.1 micron to 200 micron, we propose an optical instrument that combines two techniques: Forward scattering light intensity (FSLI) and digital holography (DH). FSLI will provide the size and concentration of particles in the 0.1 to 5 micron range while DH will provide the size, concentration and shape of particles larger than 5 micron. Accurate measurements with FSLI rely on precisely knowing the intensity of the illumination beam at the position of the particle. An innovative fiber optic bundle will select for measurement the particles that cross the very center of the illumination beam where the intensity is uniform and known. The proposed DH strategy will employ small CCD with fast data transfer to enable continued scanning of the atmosphere over many meters or even hundreds of meters. Both technologies will employ small, low power components making them suitable for UAV operation. The Phase I work will include modeling and experimental demonstrations culminating with the conceptual design of a field prototype system.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_89920
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
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Datagov Dedupe Retained 20190501230127
Harvest Object Id d48f4375-78f3-495f-b7c9-3b48b47ea881
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2016-12-01
Homepage URL https://techport.nasa.gov/view/89920
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 942a0e27d4f3d13e88b09788b6afc81a38d593c0
Source Schema Version 1.1

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