A method for standardizing the manufacturing process of integrated temperature and humidity sensor based on fiber Bragg grating

Zhang, Feilin; Li, Ming; Zhang, Haojie; Chen, Longfei

doi:10.1016/j.yofte.2018.11.009

Cited by 14 publications

(2 citation statements)

References 32 publications

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“…These sensors have several potential bene ts that make them attractive for a variety of sensing applications. They are typically small in size, immune to electromagnetic interference, passive, resistant to harsh environments, and can perform distributed sensing [8][9][10][11]. Among optical ber sensors, ber Bragg grating (FBG) has found many applications due to its ability to measure all environmental parameters such as temperature, strain, stress, bending, humidity, etc.…”

Section: Introductionmentioning

confidence: 99%

Comparison of FWHM and peak power of FBG spectrum for simultaneous measurement of strain and temperature based on tilted cantilever beam

Mansoursamaei

Gholampour

Malakzadeh

2022

Preprint

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Among the optical fiber sensors, fiber Bragg grating (FBG) has found remarkable attraction and many applications due to its ability to measure all environmental parameters, high accuracy and sensitivity, easy installation, and low price. The sensor's ability to simultaneous measurement of two environmental (physical) parameters, especially strain and temperature, has made it even more demanding. Recently, two techniques based on FWHM and peak power changes of FBG spectrum have been proposed for simultaneous measurement of temperature and strain that use a uniform FBG on a tilted cantilever beam. In this article, we evaluate and compare both techniques and demonstrate that both are equivalent and have almost similar behaviour but do not have the same applications. We find that at the low strain range the peak power technique is more accurate while at the high strain range the FWHM technique has better accuracy. Therefore, in applications such as monitoring civil structures that have a high strain range, it is better to use the FWHM technique and in some delicate industrial applications with a low strain range, the peak power technique is used.

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Section: Introductionmentioning

confidence: 99%

Comparison of FWHM and peak power of FBG spectrum for simultaneous measurement of strain and temperature based on tilted cantilever beam

Mansoursamaei

Gholampour

Malakzadeh

2022

Preprint

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“…11 However, the moisture resistance of this type of sulfonated material is not so satisfactory, and the sensor made by the polystyrene skeleton is unstable under high RH. Recently, other kinds of sulfonated polymers based on aromatic polymers, whose skeletons are more rigid and could resist moisture, have attracted our attention as new candidates for humidity sensing such as polyimide, 12 poly (arylene ether sulfone), 13 and poly (arylene ether ketone) (PAEK). 14 PAEK is a type of material belonging to the engineering polymers with excellent properties and has been broadly applied in many fields.…”

Section: Introductionmentioning

confidence: 99%

Investigations of the humidity sensing properties of side-chain-type sulfonated poly (arylene ether ketone)s

Meng

Zhuang

Zhang

et al. 2019

High Performance Polymers

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Side-chain-type sulfonated poly (arylene ether ketone)s containing naphthalene moieties with a degree of sulfonation (Ds) from 0.2 to 1.9 were synthesized. Humidity sensors were fabricated by cast coating on silver–palladium interdigital microelectrodes. The properties of this series of materials in terms of water absorption, glass transition temperature, and humidity sensing were characterized in detail. The investigations on the humidity sensing performance showed that with the increase in the Ds, the hysteresis of our materials exhibits an increasing trend first, followed by a decrease. This special phenomenon has not been reported before and caught our attention. From the results of humidity sensing properties, among the materials, the one with 0.2 Ds is promising for applications in humidity sensing due to its small hysteresis and fast response to varied relative humidity (RH). For a better understanding of the humidity sensing behavior of the sensor, complex impedance spectra were also measured. In the long-term stability measurement, the deviation of the measured impedance of the sensor at 97% RH is not obvious, proving good stability in a humid environment.

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Comparison of FWHM and peak power techniques for simultaneous measurement of strain and temperature in FBG sensors

2022

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A method for standardizing the manufacturing process of integrated temperature and humidity sensor based on fiber Bragg grating

Cited by 14 publications

References 32 publications

Comparison of FWHM and peak power of FBG spectrum for simultaneous measurement of strain and temperature based on tilted cantilever beam

Comparison of FWHM and peak power of FBG spectrum for simultaneous measurement of strain and temperature based on tilted cantilever beam

Investigations of the humidity sensing properties of side-chain-type sulfonated poly (arylene ether ketone)s

Comparison of FWHM and peak power techniques for simultaneous measurement of strain and temperature in FBG sensors

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