Detection of lard adulteration in olive oil by using tapered Plastic Optical Fiber (POF) spectroscopy

Puspita, Ika; Husada, Fadhel I.; Sekartedjo,; Hatta, Agus Muhamad

doi:10.1117/12.2504687

Cited by 5 publications

(5 citation statements)

References 9 publications

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“…As the bending radius decreased, the EW and bending loss increased and the output power decreased. Changes in the response and recovery times were related to the penetration depth, and the penetration depth ( d ) was expressed as [39]:…”

Section: Bending Radiusmentioning

confidence: 99%

Ethanol Gas Sensitivity Sensor Based on Roughened POF Taper of Modified Polypyrrole Films

Liu

Hou

2020

Sensors

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The three polypyrrole (PPy) films with different mixture ratios, namely PPy1, PPy2, and PPy3, were synthesized by chemical oxidation with pyrrole and ferric chloride (FeCl3). The roughened plastic optical fiber (POF) taper assembled PPy films (POF-PPy1, POF-PPy2, and POF-PPy3) were facilely prepared and bent U shape structure for testing ethanol gas at room temperature. The morphologies of the PPy films and the roughened POF taper were studied using electron microscopy. The effect of the three PPy films on the gas response was investigated and the results showed that the POF-PPy2 exhibited a high sensitivity of 5.08 × 10−5 dB/ppm. The detection limit of the sensor was 140 ppm and its response and recovery times were 5 s and 8 s, respectively. The results also showed that as the bending radius decreased, the response and recovery times gradually shortened, while the output power increased. In addition, the proposed sensor has advantages of a low cost and simple structure.

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Section: Bending Radiusmentioning

confidence: 99%

Ethanol Gas Sensitivity Sensor Based on Roughened POF Taper of Modified Polypyrrole Films

Liu

Hou

2020

Sensors

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“…Consequently, in the tapered region, the evanescent field intensity increases. The effect of the penetration depth ( d ′ ) and V-number are expressed as (3) [27] and (4) [29].…”

Section: Working Principlementioning

confidence: 99%

“…where mr ε represents the real part of the metal dielectric constant, θ is the incident angle at the core-gold layer interface, and s n represents the refractive index of the sensing layer [29]. The SPR effect is heavily sensitive to environmental changes and is suitable for the measurement of different parameters.…”

Section: Working Principlementioning

confidence: 99%

A Micro Structure POF Relative Humidity Sensor Modified With Agarose Based on Surface Plasmon Resonance and Evanescent Wave Loss

Ghaffar

Hou

et al. 2020

Photonic Sens

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A novel high sensitivity relative humidity (RH) sensor was proposed by using micro structure plastic optical fiber (POF) based on the surface plasmon resonance (SPR) effect and the evanescent wave (EW) loss. The micro structure was fabricated on the POF and coated with a gold layer and agarose, adopting the sputtering and dip-coating technique. These construction effects on the attenuation of power caused by the SPR effect and the EW loss were used to perform RH detections. The agarose’s different refractive indexes (RIs) caused fluctuations in the transmission power when the humidity increased. The demonstrated experimental results showed that the proposed sensor achieved a linear response from 20% RH to 80% RH with a high sensitivity of 0.595µW/%. The proposed sensor had the advantages of fast response and recovery. Furthermore, the temperature dependence and the repeatability test of the sensor were also performed.

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“…In our previous study, some structures of optical fiber sensors were applied to detect lard adulteration in edible oils and they showed great performance [14][15][16][17]. However, it is important to explore the potency of other structures of optical fiber sensors to obtain better performance of the optical fiber sensor.…”

Section: Introductionmentioning

confidence: 99%

U-bent Plastic Optical Fiber for Lard Adulteration Sensor in Edible Oil

Puspita¹,

Kurniawan

Hatta

et al. 2021

Self Cite

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A plastic optical fiber with the structure of U-bent was utilized as a sensor to detect lard adulterants in olive oil. The macro bending was formed on the plastic optical fiber with a bending radius of 10 mm, 12.5 mm, and 15 mm. The output spectra and intensity were measured to detect the existence of lard substance in olive oil. The U-bent plastic optical fiber sensor with a bending radius of 12.5 mm has the optimum performance to detect the lard adulterant substance in olive oil. It has a sensitivity of 4.6 a.u/% with 855 nm LED source and 10.07 a.u/% with 940 nm LED source in intensity-based measurement and 0.50 nm/% in spectrum-based measurement. The proposed sensor is the potential to give rapid detection on lard adulterant in edible oil.

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Detection of lard adulteration in olive oil by using tapered Plastic Optical Fiber (POF) spectroscopy

Cited by 5 publications

References 9 publications

Ethanol Gas Sensitivity Sensor Based on Roughened POF Taper of Modified Polypyrrole Films

Ethanol Gas Sensitivity Sensor Based on Roughened POF Taper of Modified Polypyrrole Films

A Micro Structure POF Relative Humidity Sensor Modified With Agarose Based on Surface Plasmon Resonance and Evanescent Wave Loss

U-bent Plastic Optical Fiber for Lard Adulteration Sensor in Edible Oil

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