Next Article in Journal
Geometric Distribution-Based Readers Scheduling Optimization Algorithm Using Artificial Immune System
Previous Article in Journal
A Deformable Smart Skin for Continuous Sensing Based on Electrical Impedance Tomography
Article Menu

Export Article

Open AccessArticle
Sensors 2016, 16(11), 1927; doi:10.3390/s16111927

Development of a Detection Algorithm for Use with Reflectance-Based, Real-Time Chemical Sensing

Center for Bio/Molecular Science & Engineering, Naval Research Laboratory, Washington, DC 20375, USA
*
Author to whom correspondence should be addressed.
Academic Editor: W. Rudolf Seitz
Received: 3 October 2016 / Revised: 10 November 2016 / Accepted: 14 November 2016 / Published: 16 November 2016
(This article belongs to the Section Chemical Sensors)
View Full-Text   |   Download PDF [1858 KB, uploaded 17 November 2016]   |  

Abstract

Here, we describe our efforts focused on development of an algorithm for identification of detection events in a real-time sensing application relying on reporting of color values using commercially available color sensing chips. The effort focuses on the identification of event occurrence, rather than target identification, and utilizes approaches suitable to onboard device incorporation to facilitate portable and autonomous use. The described algorithm first excludes electronic noise generated by the sensor system and determines response thresholds. This automatic adjustment provides the potential for use with device variations as well as accommodating differing indicator behaviors. Multiple signal channels (RGB) as well as multiple indicator array elements are combined for reporting of an event with a minimum of false responses. While the method reported was developed for use with paper-supported porphyrin and metalloporphyrin indicators, it should be equally applicable to other colorimetric indicators. Depending on device configurations, receiver operating characteristic (ROC) sensitivities of 1 could be obtained with specificities of 0.87 (threshold 160 ppb, ethanol). View Full-Text
Keywords: colorimetric; sensor; chemical detector; algorithm; autonomous colorimetric; sensor; chemical detector; algorithm; autonomous
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Malanoski, A.P.; Johnson, B.J.; Erickson, J.S.; Stenger, D.A. Development of a Detection Algorithm for Use with Reflectance-Based, Real-Time Chemical Sensing. Sensors 2016, 16, 1927.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top