The Experts below are selected from a list of 28713 Experts worldwide ranked by ideXlab platform

Xinming Zhao - One of the best experts on this subject based on the ideXlab platform.

  • monitoring of corrosion in Reinforced Concrete Structure using bragg grating sensing
    Ndt & E International, 2011
    Co-Authors: Jin Wu, Jun Li, Xinming Zhao
    Abstract:

    Abstract Corrosion in Reinforced Concrete Structures is a major problem that seriously affects the service life of the Structures. In order to detect rebar corrosion, a fiber optic corrosion sensor (FOCS) made of one fiber Bragg grating (FBG) sensor and twin steel rebar elements was designed and packaged up with Concrete. Subsequently, a series of experiments were carried out to verify its feasibility. A constant current accelerated corrosion test was performed on five fiber optic corrosion sensors and the relationship between reflected wavelength change from the grating and the weight loss rate of rebar was obtained by the gravimetric weight loss method. The experiment shows that it is feasible to monitor the degree of corrosion of Reinforced steel in Reinforced Concrete Structures using FOCS.

  • Monitoring of corrosion in Reinforced Concrete Structure using Bragg grating sensing
    NDT and E International, 2011
    Co-Authors: Junqi Gao, Jun Li, Jin Wu, Xinming Zhao
    Abstract:

    Corrosion in Reinforced Concrete Structures is a major problem that seriously affects the service life of the Structures. In order to detect rebar corrosion, a fiber optic corrosion sensor (FOCS) made of one fiber Bragg grating (FBG) sensor and twin steel rebar elements was designed and packaged up with Concrete. Subsequently, a series of experiments were carried out to verify its feasibility. A constant current accelerated corrosion test was performed on five fiber optic corrosion sensors and the relationship between reflected wavelength change from the grating and the weight loss rate of rebar was obtained by the gravimetric weight loss method. The experiment shows that it is feasible to monitor the degree of corrosion of Reinforced steel in Reinforced Concrete Structures using FOCS. © 2010 Elsevier Ltd. All rights reserved.

Jin Wu - One of the best experts on this subject based on the ideXlab platform.

  • monitoring of corrosion in Reinforced Concrete Structure using bragg grating sensing
    Ndt & E International, 2011
    Co-Authors: Jin Wu, Jun Li, Xinming Zhao
    Abstract:

    Abstract Corrosion in Reinforced Concrete Structures is a major problem that seriously affects the service life of the Structures. In order to detect rebar corrosion, a fiber optic corrosion sensor (FOCS) made of one fiber Bragg grating (FBG) sensor and twin steel rebar elements was designed and packaged up with Concrete. Subsequently, a series of experiments were carried out to verify its feasibility. A constant current accelerated corrosion test was performed on five fiber optic corrosion sensors and the relationship between reflected wavelength change from the grating and the weight loss rate of rebar was obtained by the gravimetric weight loss method. The experiment shows that it is feasible to monitor the degree of corrosion of Reinforced steel in Reinforced Concrete Structures using FOCS.

  • Monitoring of corrosion in Reinforced Concrete Structure using Bragg grating sensing
    NDT and E International, 2011
    Co-Authors: Junqi Gao, Jun Li, Jin Wu, Xinming Zhao
    Abstract:

    Corrosion in Reinforced Concrete Structures is a major problem that seriously affects the service life of the Structures. In order to detect rebar corrosion, a fiber optic corrosion sensor (FOCS) made of one fiber Bragg grating (FBG) sensor and twin steel rebar elements was designed and packaged up with Concrete. Subsequently, a series of experiments were carried out to verify its feasibility. A constant current accelerated corrosion test was performed on five fiber optic corrosion sensors and the relationship between reflected wavelength change from the grating and the weight loss rate of rebar was obtained by the gravimetric weight loss method. The experiment shows that it is feasible to monitor the degree of corrosion of Reinforced steel in Reinforced Concrete Structures using FOCS. © 2010 Elsevier Ltd. All rights reserved.

Jun Li - One of the best experts on this subject based on the ideXlab platform.

  • monitoring of corrosion in Reinforced Concrete Structure using bragg grating sensing
    Ndt & E International, 2011
    Co-Authors: Jin Wu, Jun Li, Xinming Zhao
    Abstract:

    Abstract Corrosion in Reinforced Concrete Structures is a major problem that seriously affects the service life of the Structures. In order to detect rebar corrosion, a fiber optic corrosion sensor (FOCS) made of one fiber Bragg grating (FBG) sensor and twin steel rebar elements was designed and packaged up with Concrete. Subsequently, a series of experiments were carried out to verify its feasibility. A constant current accelerated corrosion test was performed on five fiber optic corrosion sensors and the relationship between reflected wavelength change from the grating and the weight loss rate of rebar was obtained by the gravimetric weight loss method. The experiment shows that it is feasible to monitor the degree of corrosion of Reinforced steel in Reinforced Concrete Structures using FOCS.

  • Monitoring of corrosion in Reinforced Concrete Structure using Bragg grating sensing
    NDT and E International, 2011
    Co-Authors: Junqi Gao, Jun Li, Jin Wu, Xinming Zhao
    Abstract:

    Corrosion in Reinforced Concrete Structures is a major problem that seriously affects the service life of the Structures. In order to detect rebar corrosion, a fiber optic corrosion sensor (FOCS) made of one fiber Bragg grating (FBG) sensor and twin steel rebar elements was designed and packaged up with Concrete. Subsequently, a series of experiments were carried out to verify its feasibility. A constant current accelerated corrosion test was performed on five fiber optic corrosion sensors and the relationship between reflected wavelength change from the grating and the weight loss rate of rebar was obtained by the gravimetric weight loss method. The experiment shows that it is feasible to monitor the degree of corrosion of Reinforced steel in Reinforced Concrete Structures using FOCS. © 2010 Elsevier Ltd. All rights reserved.

Jianan Xu - One of the best experts on this subject based on the ideXlab platform.

F. Matsumura - One of the best experts on this subject based on the ideXlab platform.

  • Acoustic emission monitoring of a Reinforced Concrete Structure by applying new fiber-optic sensors
    Smart Materials and Structures, 2005
    Co-Authors: Kazuro Kageyama, Y Machijima, Isamu Ohsawa, Keiichi Nagata, Hideaki Murayama, Makoto Kanai, F. Matsumura
    Abstract:

    A novel fiber-optic sensor has been developed based on a newly found\nprinciple, the 'Doppler effect in a curved light waveguide'. Excellent\nperformance of the circular loop sensor has been obtained. The circular\nloop sensor can detect the sum of principal strain rate with extremely\nhigh sensitivity and very wide frequency range. The sensitivity of\nthe sensor was experimentally examined and the theoretical value\nwas confirmed. The sensor was applied to damage detection in a Reinforced\nConcrete structural model of a railway girder. The protected sensor\nsystem was developed in order to improve the survivability during\nthe structural test. In total 25 sensors were applied to the structural\nmodel. The developed fiber-optic sensors have shown almost equivalent\nsensitivity to conventional PZT sensors and much wider frequency\nrange than resonance type PZT sensors. Initiation and propagation\nof cracks in the Reinforced Concrete have been analyzed by using\nthe new fiber-optic vibration/acoustic sensing system.