Plastic Optical Fiber Sensing of Alcohol Concentration in Liquors

Morisawa, Masayuki; Muto, Shinzo

doi:10.1155/2012/709849

Cited by 22 publications

(13 citation statements)

References 2 publications

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“…Several schemes of POF based refractive index sensors have been proposed so far [3]- [8]. Among these, a taper type sensor monitors optical power attenuation caused by refraction at the taper region depending on the refractive index of the surrounding medium [3], [4].…”

Section: Introductionmentioning

confidence: 99%

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Plastic Optical Fiber Refractive Index Sensor Employing an In-Line Submillimeter Hole

Shin

Park

2013

IEEE Photon. Technol. Lett.

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An in-line submillimeter hole fabricated by microdrilling plastic optical fiber (POF) directly has been proposed as a compact refractive index sensor. Since the hole behaves as a concave lens if it is filled with a liquid having lower refractive index than that of the fiber core, transmittance increases in proportion to the refractive index. Analysis of the sensor transmittance has been performed using a simple ray optics model. Through immersing a 1.5-mm POF with a 0.35-mm-radius hole into various liquids, transmittance of the sensor has been measured at 670 nm. It has been shown that the experimental and analytical results are in excellent agreement.Index Terms-Fiber optic sensors, plastic optical fiber, refractive index sensors, microstructure fabrication.

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Section: Introductionmentioning

confidence: 99%

“…Among these, a taper type sensor monitors optical power attenuation caused by refraction at the taper region depending on the refractive index of the surrounding medium [3], [4]. A side-polished type also uses the optical power attenuation in the region sidepolished down into the core by some depth [5].…”

Section: Introductionmentioning

confidence: 99%

Plastic Optical Fiber Refractive Index Sensor Employing an In-Line Submillimeter Hole

Shin

Park

2013

IEEE Photon. Technol. Lett.

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“…As regard as the modification of the optical fiber structure it can be mentioned the fabrication of optical fiber sensors by means of hetero-core optical fibers (HCOF) [105][106][107], tapers [22,108,109] or side-polished fibers [94] cresol red, chlorophenol red, bromophenol blue + CNTs [115] Cresol red, chlorophenol red, bromophenol blue [95,96] Ethyl violet [97] Bromophenol blue [98] Bromocresol green & cresol red [99] silica matrix [100] methyl orange sol-gel [101] polymeric film [102] CRMMF/CRPOF [110,111] while the use of special optical fibers for the fabrication of sensors is mainly referred to hollow-core fibers (HCFs) [112,108] and microstructured optical fibers (MOFs) [113,114].…”

Section: Absorbance-based Sensorsmentioning

confidence: 99%

Nanostructured Materials in Optical Fiber Sensing

Hernáez¹

2013

TOOPTSJ

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This work comprehends a review of nanostructured materials employed in the fabrication of optical fiber sensors in the last years. The continuous advances in nanofabrication techniques have enabled to manipulate the matter precisely producing well defined nanostructurated coatings or repetitive patterns at nanoscale level. The interactions of light with these nano-organized materials or patterns at the nanoscale level enable to observe interesting phenomena, such as interferometry, fluorescence, absorbance, resonances and many others which can be exploited in the fabrication of sensing devices. A particular case consists of optical fiber sensors, where the light travelling through an optical fiber interacts with the sensitive layer. The properties of the sensitive layer, such as the organization, physical properties, chemical bounds etc. will determine the sensing characteristics of the final device. The utilization of some of the most common nanostructured materials, such as polymers, nanoparticles, metals, metal oxides or biological coatings are reviewed here.

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“…Fiber optic sensor can be deployed either by probing directly, or by incorporating some transduction mechanism to enhance sensitivity and selectivity [2], [3]. Previously, most of the ethanol optical sensor detections are in the near infrared (NIR) [4], [5] and UV regions.…”

Section: Introductionmentioning

confidence: 99%

Optical sensing of low ethanol concentration via absorption rate in visible wavelength

Saad

Othman

Ali

et al. 2014

2014 IEEE 5th International Conference on Photonics (ICP)

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This paper presents the rate of optical absorption in the visible wavelength region for low concentration of ethanol in water. Ethanol absorption rate was measured in neutral, acidic and alkaline medium of potassium permanganate (KMnO4) dye. The absorption rate was measured for 0.01% to 1% ethanol. This non-contact optical system employs tungsten halogen light source and spectrometer from Ocean Optics. This method demonstrates a sensitivity of more than 0.01%; fast detection speed of 27s; and has potential for in situ measurement.

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Plastic Optical Fiber Sensing of Alcohol Concentration in Liquors

Cited by 22 publications

References 2 publications

Plastic Optical Fiber Refractive Index Sensor Employing an In-Line Submillimeter Hole

Plastic Optical Fiber Refractive Index Sensor Employing an In-Line Submillimeter Hole

Nanostructured Materials in Optical Fiber Sensing

Optical sensing of low ethanol concentration via absorption rate in visible wavelength

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