|FIRE DETECTION ARRAY
Another type of sensor array developed by NASA
Glenn and its collaborators is for the detection of fires.
on-board space and commercial aircraft is extremely
important to avoid catastrophic situations and to verify
the operational status of the vehicle. False alarm rates
from the traditional fire detectors can be high with
changes in humidity, condensation on the detector’s
surface, or contamination from the contents of the
vehicle often being responsible for false indications of
a fire. The purpose of this work was to produce
microsensors to measure a chemical signature of a fire
to complement the existing fire detection technology.
Two gases of particular interest in fire detection are
CO and CO2 and their ratio. The CO and CO2 sensors whose
development is discussed elsewhere on this webpage are
central to an array to detect species indicative of a fire and provide more
reliable fire detection technology. Other sensors can be
included in the array to improve the accuracy of the
chemical signature and provide indications of conditions
which produce false alarms in other detectors. This
work is in conjunction with the [FAA].
It was recognized by a 2005 R&D 100 Award for a
Multi-Parameter, MicroSensor-Based Low False Alarm Fire Detection System and
a NASA 2005 Turning Goals into Reality Associate Administrators Choice Award.
This fire detection approach is presently being evaluated for application on the Crew Exploration Vehicle.