Accession Number:

ADA440173

Title:

General Atomics Smart Microsensors - FY05 Laboratory Fire Test Results

Descriptive Note:

Interim rept. Apr-Jun 2005

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC CHEMISTRY DIV

Report Date:

2005-10-31

Pagination or Media Count:

34.0

Abstract:

This report describes the cermet sensors and system control software recently evaluated in laboratory tests for shipboard damage control. The tests were conducted to generate a database of sensor responses to fire and nuisance sources for algorithm development, and to develop fire detection alarm algorithms. In this work, the cermet sensors incorporate four sensors with multivariate analysis methods and classification algorithms for detecting a wide variety of analytes, including toxic industrial chemicals, fires, and nuisance sources. The test series successfully demonstrated the functionality and performance of the microsensor system for use in fire detection. The detection system demonstrated the ability to detect flaming and smoldering fires at the same level as the commercial multicriteria detector. It was on average 2.5 to 5.5 minutes faster for smoldering fires versus all detector types evaluated, and 50 to 80 seconds faster for flaming fires versus multicriteria and photoelectric detectors, but 50 seconds slower than the ionization detector. The system needs improvement in addressing fire-like nuisances.

Subject Categories:

  • Physical Chemistry
  • Ceramics, Refractories and Glass
  • Metallurgy and Metallography
  • Safety Engineering
  • Miscellaneous Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE