Dr. Tongyu Liu Profile

Dr. Tongyu Liu

at Intelligent Sensor Systems Ltd

SPIE Involvement:

Author

Publications (18)

Proceedings Article | 14 February 2005 Paper

A low-cost multimode fiber Bragg grating sensor system

Tongyu Liu, Daorui Wang, Rasool Raenaei, Xianfeng Chen, Lin Zhang, Ian Bennion

Proceedings Volume 5634, (2005) https://doi.org/10.1117/12.576055

KEYWORDS: Sensors, Fiber Bragg gratings, Multimode fibers, Light emitting diodes, Single mode fibers, Optical filters, Light sources, Signal detection, Filtering (signal processing), Sensing systems

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Proceedings Article | 14 February 2005 Paper

Optical sensor based on hybrid LPG/FBG in D-fiber for simultaneous refractive index and temperature measurement

Xianfeng Chen, Kaiming Zhou, Lin Zhang, Ian Bennion, Tongyu Liu

Proceedings Volume 5634, (2005) https://doi.org/10.1117/12.570219

KEYWORDS: Fiber Bragg gratings, Refractive index, Etching, Temperature metrology, Cladding, Optical sensors, Sensors, Solids, Calibration, Ultraviolet radiation

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Proceedings Article | 27 June 2002 Paper

Fiber optic acoustic emission sensor based on a fused tapered coupler

Crispin Doyle, Rongshen Chen, Tongyu Liu, Gangtie Zheng, Gerard Fernando

Proceedings Volume 4694, (2002) https://doi.org/10.1117/12.472633

KEYWORDS: Sensors, Ferroelectric materials, Acoustics, Acoustic emission, Fiber optics sensors, Transducers, Signal to noise ratio, Composites, Semiconductor lasers, Systems modeling

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Proceedings Article | 31 August 2000 Paper

Analysis of acousto-optic modulation in optical fiber coupler

Rongsheng Chen, Yanbiao Liao, Gangtie Zheng, Tonguy Liu, Gerard Fernando

Proceedings Volume 4074, (2000) https://doi.org/10.1117/12.397905

KEYWORDS: Fiber couplers, Acoustics, Modulation, Acousto-optics, Optical fibers, Single mode fibers, Ferroelectric materials, Sensors, Composites, Cladding

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Proceedings Article | 31 May 1999 Paper

Evaluation of a low-cost optical-fiber-based strain sensor

D. Inder, M. Buckley, Tonguy Liu, Gerard Fernando

Proceedings Volume 3670, (1999) https://doi.org/10.1117/12.349731

KEYWORDS: Sensors, Optical fibers, Adhesives, Photography, Profiling, Fusion splicing, Composites, Multimode fibers, Manufacturing, Optics manufacturing

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Proceedings Article | 31 May 1999 Paper

Online monitoring of amine concentration in the processing of amine/epoxy-based thermosets

Tonguy Liu, S. Elsby, Gerard Fernando

Proceedings Volume 3670, (1999) https://doi.org/10.1117/12.349723

KEYWORDS: Absorbance, Absorption, Scattering, Sensors, Near infrared, Chemical analysis, FT-IR spectroscopy, Epoxies, Fiber optics sensors, Light sources

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Proceedings Article | 21 July 1998 Paper

Simultaneous strain and temperature measurements in composites using extrinsic Fabry-Perot interferometric and intrinsic rare-earth-doped fiber sensors

Tonguy Liu, Gerard Fernando, Zhiyi Zhang, Kenneth Grattan

Proceedings Volume 3330, (1998) https://doi.org/10.1117/12.316990

KEYWORDS: Sensors, Temperature metrology, Luminescence, Composites, Fiber optics sensors, Fabry–Perot interferometers, Neodymium, Fiber Bragg gratings, Temperature sensors, Optical fibers

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Proceedings Article | 21 July 1998 Paper

Simultaneous strain and temperature measurement using an integrated fiber Bragg grating/extrinsic Fabry-Perot sensor

Tonguy Liu, Gerard Fernando, Lin Zhang, Ian Bennion, Yun-Jiang Rao, David Jackson

Proceedings Volume 3330, (1998) https://doi.org/10.1117/12.316988

KEYWORDS: Sensors, Fiber Bragg gratings, Temperature metrology, Composites, Fabry–Perot interferometers, Optical fibers, Carbon, Quartz, Capillaries, Ocean optics

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Proceedings Article | 21 July 1998 Paper

Optical sensor system for monitoring the extent of mixing in thermosetting resins

Tonguy Liu, R. Mohamed, Gerard Fernando

Proceedings Volume 3330, (1998) https://doi.org/10.1117/12.316969

KEYWORDS: Epoxies, Composites, Polymers, Manufacturing, Spectroscopy, Sensors, Light scattering, Chemical elements, Absorption, Optical sensors

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Proceedings Article | 16 April 1998 Paper

Quartz and E-glass fiber self-sensing composites

K. Zolfaghar, N. Khan, David Brooks, Simon Hayes, Tonguy Liu, J. Roca, J. Lander, Gerard Fernando

Proceedings Volume 3321, (1998) https://doi.org/10.1117/12.305565

KEYWORDS: Composites, Optical fibers, Cladding, Quartz, Waveguides, Silicon, Carbon, Coating, Fiber coatings, Epoxies

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Proceedings Article | 6 June 1997 Paper

Simultaneous strain and temperature measurements in composites using a multiplexed fiber Bragg grating sensor and an extrinsic Fabry-Perot sensor

Tonguy Liu, Gerard Fernando, Yun-Jiang Rao, David Jackson, Lin Zhang, Ian Bennion

Proceedings Volume 3042, (1997) https://doi.org/10.1117/12.275737

KEYWORDS: Sensors, Fiber Bragg gratings, Fabry–Perot interferometers, Temperature metrology, Composites, Optical fibers, Charge-coupled devices, Spectroscopy, Reflection, Multiplexing

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Proceedings Article | 6 June 1997 Paper

Multiplexed extrinsic Fabry-Perot sensor system for in-situ strain and impact damage detection in composites

Tonguy Liu, M. Wu, Gerard Fernando, Yun-Jiang Rao, David Jackson

Proceedings Volume 3042, (1997) https://doi.org/10.1117/12.275748

KEYWORDS: Sensors, Composites, Multiplexing, Fabry–Perot interferometers, Optical fibers, Spectroscopy, Light sources, Interferometry, Charge-coupled devices, Carbon

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Proceedings Article | 24 September 1996 Paper

In-situ strain measurements in composites during fatigue testing using optical fiber Bragg gratings and a portable CCD detection system

Tonguy Liu, Gerard Fernando, Yun-Jiang Rao, David Jackson, Lin Zhang, Ian Bennion

Proceedings Volume 2895, (1996) https://doi.org/10.1117/12.252137

KEYWORDS: Fiber Bragg gratings, Sensors, Composites, Charge-coupled devices, Spectroscopy, Reflection, Optical fibers, Fiber optics sensors, Optical testing, CCD image sensors

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Proceedings Article | 24 September 1996 Paper

In-situ strain monitoring in composites using an embedded extrinsic Fabry-Perot interferometric sensor and a CCD detection system

Tonguy Liu, F. Ai-Khodairi, M. Wu, M. Irle, Gerard Fernando

Proceedings Volume 2895, (1996) https://doi.org/10.1117/12.252144

KEYWORDS: Sensors, Composites, Charge-coupled devices, Interferometry, Optical fibers, Fabry–Perot interferometers, Light sources, CCD image sensors, Fiber optics sensors, Signal processing

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Proceedings Article | 24 September 1996 Paper

In-situ cure monitoring of an epoxy/amine resin system using an optical fiber transmission sensor

Peter Crosby, Graham Powell, Tonguy Liu, Xinyi Wu, Gerard Fernando

Proceedings Volume 2895, (1996) https://doi.org/10.1117/12.252127

KEYWORDS: Sensors, Optical fibers, Data modeling, FT-IR spectroscopy, Epoxies, Spectroscopy, Absorption, Data conversion, Near infrared spectroscopy, Fiber optics sensors

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Proceedings Article | 24 September 1996 Paper

Intensity-based optical fiber sensors for condition monitoring of engineering materials

Crispin Doyle, Anthony Martin, M. Wu, Tonguy Liu, Simon Hayes, David Brooks, Rodney Badcock, Gerard Fernando

Proceedings Volume 2895, (1996) https://doi.org/10.1117/12.252145

KEYWORDS: Sensors, Optical fibers, Composites, Light sources, Visibility, Fiber optics sensors, Signal attenuation, Glasses, Damage detection, Waveguides

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Proceedings Article | 30 May 1996 Paper

In-situ self-sensing fiber reinforced composites

Simon Hayes, David Brooks, Tonguy Liu, S. Vickers, Gerard Fernando

Proceedings Volume 2718, (1996) https://doi.org/10.1117/12.240877

KEYWORDS: Composites, Optical fibers, Cladding, Sensors, Silicon, Waveguides, Silica, Carbon, Fiber coatings, Glasses

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Proceedings Article | 30 May 1996 Paper

Design, fabrication, and evaluation of an optical fiber sensor for tensile and compressive strain measurements via the use of white light interferometry

Tonguy Liu, David Brooks, Anthony Martin, Rodney Badcock, Gerard Fernando

Proceedings Volume 2718, (1996) https://doi.org/10.1117/12.240880

KEYWORDS: Sensors, Composites, Optical fibers, Capillaries, Fiber optics sensors, Monochromators, Fusion splicing, Carbon, Multimode fibers, Fabry–Perot interferometers

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Showing 5 of 18 publications

Conference Committee Involvement (2)

Advanced Sensor Systems and Applications III

12 November 2007 | Beijing, China

Advanced Sensor Systems and Applications II

8 November 2004 | Beijing, China

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