Multi-sensor analyzer detector (MSAD) for low cost chemical and aerosol detection and pattern fusion

David Carl Swanson, Daniel Ward Merdes, Daniel B. Lysak, Richard C. Curtis, Derek C. Lang, Andre F. Mazzara, Nicholas C. Nicholas

Research output: Contribution to journalConference article

Abstract

MSAD is being developed as a low-cost point detection chemical and biological sensor system designed around an information fusion inference engine that also allows additional sensors to be included in the detection process. The MSAD concept is based on "probable cause" detection of hazardous chemical vapors and aerosols of either chemical or biological composition using a small portable unit containing an embedded computer system and several integrated sensors with complementary capabilities. The configuration currently envisioned included a Surface-Enhanced Raman Spectroscopy (SERS) sensor of chemical vapors and a detector of respirable aerosols based on Fraunhoffer diffraction. Additional sensors employing Ion Mobility Spectrometry (IMS), Surface Acoustic Wave (SAW) detection Flame Photometric Detection (FPD), and other principles are candidates for integration into the device; also, available commercial detectors implementing IMS, SAW, and FPD will be made accessible to the unit through RS232 ports. Both feature and decision level information fusion is supported using a Continuous Inference Network (CINET) of fuzzy logic. Each class of agents has a unique CINET with information inputs from a number of available sensors. Missing or low confidence sensor information is gracefully "blended out" of the output confidence for the particular agent. This approach constitutes a "plug and play" arrangement between the sensors and the information pattern recognition algorithms. We are currently doing simulant testing and developing out CINETs for actual agent testing at Edgewood Chemical and Biological Center (ECBC) later this year.

Original languageEnglish (US)
Pages (from-to)226-232
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4708
DOIs
StatePublished - Dec 1 2002

Fingerprint

chemical detection
Aerosol
Aerosols
analyzers
aerosols
Fusion
fusion
Detector
Detectors
Sensor
sensors
detectors
Sensors
Costs
Surface Acoustic Wave
inference
Information Fusion
Flame
Information fusion
Confidence

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Swanson, David Carl ; Merdes, Daniel Ward ; Lysak, Daniel B. ; Curtis, Richard C. ; Lang, Derek C. ; Mazzara, Andre F. ; Nicholas, Nicholas C. / Multi-sensor analyzer detector (MSAD) for low cost chemical and aerosol detection and pattern fusion. In: Proceedings of SPIE - The International Society for Optical Engineering. 2002 ; Vol. 4708. pp. 226-232.
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Multi-sensor analyzer detector (MSAD) for low cost chemical and aerosol detection and pattern fusion. / Swanson, David Carl; Merdes, Daniel Ward; Lysak, Daniel B.; Curtis, Richard C.; Lang, Derek C.; Mazzara, Andre F.; Nicholas, Nicholas C.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4708, 01.12.2002, p. 226-232.

Research output: Contribution to journalConference article

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