A SELF-MAINTAINED SENSOR USING A LOW POWER ACTUATOR

A self-maintained chemical sensing system is disclosed. According to the devices and methods of the invention, it is shown that the BCG-based colorimetric sensor could be reproducibly moved between the predefined site to accomplish the self-maintaining and colorimetric measurement. Colorimetric meas...

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Bibliographische Detailangaben
Hauptverfasser:	SMYTH, CIARAN, WALLACE, GORDON, G, WU, YANZHE, SHEPHERD, RODERICK, DIAMOND, DERMOT, SPINKS, GEOFFREY, M
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICALDEVICES MICROSTRUCTURAL TECHNOLOGY PERFORMING OPERATIONS PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	A self-maintained chemical sensing system is disclosed. According to the devices and methods of the invention, it is shown that the BCG-based colorimetric sensor could be reproducibly moved between the predefined site to accomplish the self-maintaining and colorimetric measurement. Colorimetric measurements are achieved by analyzing RGB changes using a video camera or by monitoring photocurrent using an LED emitter and LED detector. The calculated energy consumption rate was ~ 0.17 J / cm2 per cycle for a self-maintained and/or autonomous low cost chemical sensor. L'invention concerne un système de détection chimique autonome. Selon les dispositifs et les procédés de la présente invention, un capteur colorimétrique BCG pourrait être déplacé par reproduction entre le site prédéfini pour réaliser la mesure colorimétrique et autonome. Des mesures colorimétriques sont réalisées par l'analyse de changements RGB à l'aide d'une caméra vidéo ou par la surveillance du courant photoélectrique à l'aide d'un émetteur LED et d'un détecteur LED. Le taux de consommation d'énergie calculé était ~ 0.17 J / cm2 par cycle pour un capteur chimique bon marché autonome et/ou indépendant.