Compact System for Colorimetric Sensor Arrays Characterization Based on Computer Screen Photo-Assisted Technology

The detection of the spectral fingerprint of chemical sensors through the combined use of an LCD and a webcam is an alternative approach for chemical sensor characterization. This technique allows the development of more compact, cheap, and user-friendly measurement systems compared to the more clas...

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Main Authors: Giovanni Gugliandolo, Giovanni Pilato, Nicola Donato
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/10/21/2587
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author Giovanni Gugliandolo
Giovanni Pilato
Nicola Donato
author_facet Giovanni Gugliandolo
Giovanni Pilato
Nicola Donato
author_sort Giovanni Gugliandolo
collection DOAJ
description The detection of the spectral fingerprint of chemical sensors through the combined use of an LCD and a webcam is an alternative approach for chemical sensor characterization. This technique allows the development of more compact, cheap, and user-friendly measurement systems compared to the more classic instruments, such as spectrometers and gas chromatography systems. In the Computer Screen Photo-assisted Technique (CSPT), a display acts as a light source, and a conventional camera (e.g., a webcam) plays the role of a detector. The light from the LCD is reflected (or transmitted) by the chemical sensor, and the camera detects it. In the present contribution, we propose a compact and low-cost platform based on CSPT for the characterization of colorimetric sensor arrays. The system can provide spectral information of both reflected and transmitted light from the sample. Further, a 2.4-inch LCD and three different detector’s (a webcam, an RGB sensor, and a camera module) performances have been evaluated and discussed. The developed system includes a UDOO-based single board computer that makes it a stand-alone measurement system.
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spelling doaj.art-cfd63d4a38cb4e07918e620a06d07d502023-11-22T20:37:53ZengMDPI AGElectronics2079-92922021-10-011021258710.3390/electronics10212587Compact System for Colorimetric Sensor Arrays Characterization Based on Computer Screen Photo-Assisted TechnologyGiovanni Gugliandolo0Giovanni Pilato1Nicola Donato2Department of Engineering, University of Messina, 98166 Messina, ItalyICAR-CNR, Italian National Research Council, 90146 Palermo, ItalyDepartment of Engineering, University of Messina, 98166 Messina, ItalyThe detection of the spectral fingerprint of chemical sensors through the combined use of an LCD and a webcam is an alternative approach for chemical sensor characterization. This technique allows the development of more compact, cheap, and user-friendly measurement systems compared to the more classic instruments, such as spectrometers and gas chromatography systems. In the Computer Screen Photo-assisted Technique (CSPT), a display acts as a light source, and a conventional camera (e.g., a webcam) plays the role of a detector. The light from the LCD is reflected (or transmitted) by the chemical sensor, and the camera detects it. In the present contribution, we propose a compact and low-cost platform based on CSPT for the characterization of colorimetric sensor arrays. The system can provide spectral information of both reflected and transmitted light from the sample. Further, a 2.4-inch LCD and three different detector’s (a webcam, an RGB sensor, and a camera module) performances have been evaluated and discussed. The developed system includes a UDOO-based single board computer that makes it a stand-alone measurement system.https://www.mdpi.com/2079-9292/10/21/2587colorimetric sensorsCSPTmeasurementinstrumentationsensor arraysoptical sensors
spellingShingle Giovanni Gugliandolo
Giovanni Pilato
Nicola Donato
Compact System for Colorimetric Sensor Arrays Characterization Based on Computer Screen Photo-Assisted Technology
Electronics
colorimetric sensors
CSPT
measurement
instrumentation
sensor arrays
optical sensors
title Compact System for Colorimetric Sensor Arrays Characterization Based on Computer Screen Photo-Assisted Technology
title_full Compact System for Colorimetric Sensor Arrays Characterization Based on Computer Screen Photo-Assisted Technology
title_fullStr Compact System for Colorimetric Sensor Arrays Characterization Based on Computer Screen Photo-Assisted Technology
title_full_unstemmed Compact System for Colorimetric Sensor Arrays Characterization Based on Computer Screen Photo-Assisted Technology
title_short Compact System for Colorimetric Sensor Arrays Characterization Based on Computer Screen Photo-Assisted Technology
title_sort compact system for colorimetric sensor arrays characterization based on computer screen photo assisted technology
topic colorimetric sensors
CSPT
measurement
instrumentation
sensor arrays
optical sensors
url https://www.mdpi.com/2079-9292/10/21/2587
work_keys_str_mv AT giovannigugliandolo compactsystemforcolorimetricsensorarrayscharacterizationbasedoncomputerscreenphotoassistedtechnology
AT giovannipilato compactsystemforcolorimetricsensorarrayscharacterizationbasedoncomputerscreenphotoassistedtechnology
AT nicoladonato compactsystemforcolorimetricsensorarrayscharacterizationbasedoncomputerscreenphotoassistedtechnology