Viscosity sensor using long-period fiber grating based on transmission amplitude change of resonance wavelength

Wang, Jian-Neng; Tang, Jaw-Luen; Wu, Wenqi; Chen, Der-Cheng; Chen, Chien‐Hsing; Luo, Ching-Ying

doi:10.1109/pgc.2010.5705992

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…As previously discussed in Section 1, other studies have reported applications that measure when a finger is moved (references [ 21 , 22 ]). Contrary to the aforementioned studies, this study reports how much the finger is moved and the corresponding classification of angle rates.…”

Section: Resultsmentioning

confidence: 99%

“…The most widely fiber-optics sensors known are interferometers, fiber Bragg grating (FBG), long-period fiber grating (LPFG), distributed and polarimetric. In particular, applications for LPFG sensors have been reported in fields such as measurements of ionic concentration [ 16 ], levels of a liquid and fluid-flow velocity [ 17 ], strain [ 18 , 19 ], humidity [ 20 ], viscosity [ 21 ], refraction index [ 22 ], and as biosensors [ 23 ]. In spite of the wide range of proposed applications, a LPFG-based sensor for joint movement detection has not been reported.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Architecture for Measuring Joint Angles Using a Long Period Fiber Grating-Based Sensor

Perez-Ramirez

Almanza-Ojeda

Guerrero-Tavares

et al. 2014

Sensors

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The implementation of signal filters in a real-time form requires a tradeoff between computation resources and the system performance. Therefore, taking advantage of low lag response and the reduced consumption of resources, in this article, the Recursive Least Square (RLS) algorithm is used to filter a signal acquired from a fiber-optics-based sensor. In particular, a Long-Period Fiber Grating (LPFG) sensor is used to measure the bending movement of a finger. After that, the Gaussian Mixture Model (GMM) technique allows us to classify the corresponding finger position along the motion range. For these measures to help in the development of an autonomous robotic hand, the proposed technique can be straightforwardly implemented on real time platforms such as Field Programmable Gate Array (FPGA) or Digital Signal Processors (DSP). Different angle measurements of the finger's motion are carried out by the prototype and a detailed analysis of the system performance is presented.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Architecture for Measuring Joint Angles Using a Long Period Fiber Grating-Based Sensor

Perez-Ramirez

Almanza-Ojeda

Guerrero-Tavares

et al. 2014

Sensors

View full text Add to dashboard Cite

show abstract

“…The fabrication of LPFGs has been reported elsewhere [20][21][22][23]. The LPFGs were fabricated by the CO 2 laser method [21] with hydrogen-free Corning SMF-28 fibers.…”

Section: Long-period Fiber Grating Sensorsmentioning

confidence: 99%

Measurement of Viscosity Using a Long-Period Fiber-Grating-Based Viscometer

Wang

Tang

Chen

et al. 2013

AMR

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This work addresses the comprehensive viscosity measurements and assessment of fluidic materials in the range from 0.01 to 2000 Poises using a fiber optical viscometer with the long-period fiber grating (LPFG) technology. The fluidic materials used and evaluated in this study were AC-20 asphalt cement, four types of silicone oils, and sunflower seed oil. We simultaneously measured the LPFG-induced discharge time and the transmission spectra both in hot air and fluidic materials (other than the AC-20 asphalt) at six different temperatures, i.e., 30, 60, 80, 100, 135, and 170 Celsius. An electromechanical rotational viscometer was also used to measure the viscosities of fluidic materialsthe silicone oils and sunflower seed oil at the above six temperatures. Comparative analysis shows that the LPFG-induced discharge time agreed well with the viscosities obtained from the rotational viscometer. The LPFG-based viscometer was capable of measuring the viscosity (discharge time) in the range from 0.12 to 2000 Poises, which is much wider than the viscosity range of a traditional electromechanical rotational viscometer. This fiber-optic LPFG-based viscometer could be proposed and implemented in the field of road and airfield pavement technology such as the viscosity measurements of asphalt cements, emulsified asphalt binders, and other viscous materials. Hopefully, such a highly sensitive viscometer is suitable for use in various fields of applications, such as civil, food, chemical and biological, mechanical, petroleum, and aerospace engineering.

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Metal coatings on long-period fiber gratings and the implementation of an associated sensing model

Jiang

Wang

et al. 2017

Appl. Phys. A

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Viscosity sensor using long-period fiber grating based on transmission amplitude change of resonance wavelength

Cited by 4 publications

References 10 publications

An Architecture for Measuring Joint Angles Using a Long Period Fiber Grating-Based Sensor

An Architecture for Measuring Joint Angles Using a Long Period Fiber Grating-Based Sensor

Measurement of Viscosity Using a Long-Period Fiber-Grating-Based Viscometer

Metal coatings on long-period fiber gratings and the implementation of an associated sensing model

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