Transcript Differential Absorption Radiometry for Stand

Passive Stand-Off Detection of
Chemicals
Gabriel Laufer
University of Virginia, Mechanical and Aerospace
Engineering, Charlottesville, VA 22904
Acknowledgement: Support by the Virginia Center for Innovative Technology
and Avir, LLC
University of Virginia
University of Virginia
Properties of sensors for
domestic defense applications
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Sensitivity  existing passive remote sensors,
Fast (0.1-1 sec),
Multi-chemical (weapon agents + simulants),
Robust – few (or no) moving parts, no fine
alignment,
Simple to operate,
Output easy to interpret,
Low cost (low level of approval),
Low energy (commercially available battery),
Imaging capabilities (desirable).
University of Virginia
Prototype of a single-chemical DAR
University of Virginia
University of Virginia Remote
Sensing Experiment
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Sponsors: NSROC, NASA, VSGC,
SEAS, VEF, MAE.
Previous mission launched from
NASA Wallops Island on an
Orion single stage sounding
rocket.
Future experiment: video
camera, and five photodiodes
for ocean chlorophyll
measurements
Gas filter correlation radiometer
for measurement of methane in
University of Virginia
the stratosphere
Mostly undergraduate project, 18 students + 1 grad student in
AY 2001-02, over 60 during the last 4 years.
Interdisciplinary, including remote sensing, telemetry, space
technology, mechanical design, system integration.
(Shown L/R: Gaby Laufer, Jeff Dawson and Sarah Armstrong)
University of Virginia