The fabrication and characterization of a disposable optical fiber sensor for the detection of pH in the range 5-8 are described. The sensing element is a drop of sol-gel hybrid material containing phenol red and deposited onto the tip of a large core plastic optical fiber. This fiber is also exploited for the optical interrogation. This probe can be used as a disposable part of a measuring system. The dynamic range and temporal response of the sensor are here investigated.
Construction and evaluation of a disposable pH sensor based on a large core plastic optical fiber / Rovati, Luigi; Fabbri, Paola; Luca, Ferrari; Francesco, Pilati. - In: REVIEW OF SCIENTIFIC INSTRUMENTS. - ISSN 0034-6748. - ELETTRONICO. - 82:2(2011), pp. 023106-023106. [10.1063/1.3541795]
Construction and evaluation of a disposable pH sensor based on a large core plastic optical fiber
ROVATI, Luigi;FABBRI, Paola;PILATI, Francesco
2011
Abstract
The fabrication and characterization of a disposable optical fiber sensor for the detection of pH in the range 5-8 are described. The sensing element is a drop of sol-gel hybrid material containing phenol red and deposited onto the tip of a large core plastic optical fiber. This fiber is also exploited for the optical interrogation. This probe can be used as a disposable part of a measuring system. The dynamic range and temporal response of the sensor are here investigated.
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