2014
Quintana, Joel; Rumpf, Raymond; Gonzalez, Virgilio
International Society for Optics and Photonics, vol. 8988, 2014.
Abstract | Links | BibTeX | Tags: fiber-bragg grating, sensors
@proceedings{RN89,
title = {Modified transfer matrix method model for a fiber Bragg grating strain sensor in polarization maintaining single mode optical fiber},
author = {Joel Quintana and Raymond Rumpf and Virgilio Gonzalez},
url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/8988/1/Modified-transfer-matrix-method-model-for-a-fiber-Bragg-grating/10.1117/12.2040674.short},
doi = {https://doi.org/10.1117/12.2040674},
year = {2014},
date = {2014-03-08},
booktitle = {Integrated Optics: Devices, Materials, and Technologies XVIII},
volume = {8988},
pages = {89881B},
publisher = {International Society for Optics and Photonics},
abstract = {Fiber-Bragg Gratings (FBG) for Structural Health Monitoring (SHM) have been studied extensively as they offer electrically passive operation, EMI immunity, high sensitivity, and multiple multiplexing schemes, as compared to conventional electricity based strain sensors. FBG sensors written in Polarization Maintaining (PM) optical fiber offer an additional dimension of strain measurement simplifying sensor implementation within a structure. This simplification however, adds complexity to the detection of the sensor’s optical response to its corresponding applied strain. We propose a modified Transfer Matrix Method model to simulate a fiber Bragg grating (FBG) in a polarization maintaining optical fiber. We study the effects of the reflected Bragg wavelength to the changes in shape of the optical fiber core waveguide and compare the results to the existing literature.},
keywords = {fiber-bragg grating, sensors},
pubstate = {published},
tppubtype = {proceedings}
}
Fiber-Bragg Gratings (FBG) for Structural Health Monitoring (SHM) have been studied extensively as they offer electrically passive operation, EMI immunity, high sensitivity, and multiple multiplexing schemes, as compared to conventional electricity based strain sensors. FBG sensors written in Polarization Maintaining (PM) optical fiber offer an additional dimension of strain measurement simplifying sensor implementation within a structure. This simplification however, adds complexity to the detection of the sensor’s optical response to its corresponding applied strain. We propose a modified Transfer Matrix Method model to simulate a fiber Bragg grating (FBG) in a polarization maintaining optical fiber. We study the effects of the reflected Bragg wavelength to the changes in shape of the optical fiber core waveguide and compare the results to the existing literature.
Karim, Hasanul; Delfin, Diego; Chavez, Luis A; Delfin, Luis; Martinez, Ricardo; Avila, Jose; Rodriguez, Carlos; Rumpf, Raymond C; Love, Norman; Lin, Yirong
Metamaterial based passive wireless temperature sensor Journal Article
In: Advanced Engineering Materials, vol. 19, no. 5, pp. 1600741, 2014, ISSN: 1438-1656.
Abstract | Links | BibTeX | Tags: closed ring resonators, metamaterials, passive wireless temperature sensor, sensors
@article{RN122,
title = {Metamaterial based passive wireless temperature sensor},
author = {Hasanul Karim and Diego Delfin and Luis A Chavez and Luis Delfin and Ricardo Martinez and Jose Avila and Carlos Rodriguez and Raymond C Rumpf and Norman Love and Yirong Lin},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/adem.201600741},
issn = {1438-1656},
year = {2014},
date = {2014-02-14},
journal = {Advanced Engineering Materials},
volume = {19},
number = {5},
pages = {1600741},
abstract = {This paper presents the fabrication, modeling, and testing of a metamaterial based passive wireless temperature sensor consisting of an array of closed ring resonators (CRRs) embedded in a dielectric material matrix. A mixture of 70 vol% Boron Nitride (BN) and 30 vol% Barium Titanate (BTO) is used as the dielectric matrix and copper washers are used as CRRs. Conventional powder compression is used for the sensor fabrication. The feasibility of wireless temperature sensing is demonstrated up to 200 °C. The resonance frequency of the sensor decreases from 11.93 GHz at room temperature to 11.85 GHz at 200 °C, providing a sensitivity of 0.462 MHz °C. The repeatability of temperature sensing tests is carried out to quantify the repeatability. The highest standard deviation observed is 0.012 GHz at 200 °C.},
keywords = {closed ring resonators, metamaterials, passive wireless temperature sensor, sensors},
pubstate = {published},
tppubtype = {article}
}
This paper presents the fabrication, modeling, and testing of a metamaterial based passive wireless temperature sensor consisting of an array of closed ring resonators (CRRs) embedded in a dielectric material matrix. A mixture of 70 vol% Boron Nitride (BN) and 30 vol% Barium Titanate (BTO) is used as the dielectric matrix and copper washers are used as CRRs. Conventional powder compression is used for the sensor fabrication. The feasibility of wireless temperature sensing is demonstrated up to 200 °C. The resonance frequency of the sensor decreases from 11.93 GHz at room temperature to 11.85 GHz at 200 °C, providing a sensitivity of 0.462 MHz °C. The repeatability of temperature sensing tests is carried out to quantify the repeatability. The highest standard deviation observed is 0.012 GHz at 200 °C.