The Experts below are selected from a list of 107760 Experts worldwide ranked by ideXlab platform

Manuel Lopez-amo - One of the best experts on this subject based on the ideXlab platform.

  • Simultaneous Strain and Temperature Multipoint Sensor Based on Microstructured Optical Fiber
    Journal of Lightwave Technology, 2018
    Co-Authors: Aitor Lopez-aldaba, Jean-louis Auguste, Raphaël Jamier, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and independent multipoint strain and temperature measurements is presented. The interrogation of the sensing heads has been carried out by monitoring their fast Fourier transform phase variations. In particular, two of each microstructured optical fiber cavity Interference frequencies were used for the measures. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensing heads present birefringent and multimodal properties, and therefore, both characteristics lead to their own Interference with different properties and sensitivities. The multiplexing capability of the sensing heads and the interrogator method has also been tested and validated. Sensors were operated within a range of temperature 30 °C–80 °C and a deformation of ∼450 μϵ was applied. Crosstalk between measurements can be corrected through simple math operations leading to independent and crosstalk-free multipoint and multiparameter sensors.

  • Simultaneous strain and temperature multipoint sensor based on microstructured optical fiber
    Journal of Lightwave Technology, 2017
    Co-Authors: Aitor Lopez-aldaba, Jean-louis Auguste, Raphaël Jamier, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and independent multipoint strain and temperature measurements is presented. The interrogation of the sensing heads has been carried out by monitoring their FFT phase variations. In particular, two of each microstructured optical fiber (MOF) cavity Interference frequencies were used for the measures. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensing heads present birefringent and multimodal properties and therefore both characteristics lead to their own Interference with different properties and sensitivities. The multiplexing capability of the sensing heads and the interrogator method has also been tested and validated. Sensors were operated within a range of temperature 30°C-80°C and a deformation of ~450 was applied. Crosstalk between measurements can be corrected through simple math operations leading to independent and crosstalk-free multipoint and multiparameter sensors.

  • Simultaneous and quasi-independent strain and temperature sensor based on microstructured optical fiber
    2017 25th Optical Fiber Sensors Conference (OFS), 2017
    Co-Authors: Lopez A. Aldaba, Raphaël Jamier, Jean-louis Auguste, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and quasi-independent strain and temperature measurements is presented. The interrogation of the sensing head has been carried out by monitoring the FFT phase variations of two of the microstructured optical fiber (MOF) cavity Interference frequencies. This method is independent of the signal amplitude and also avoids the need to track the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensor is operated within a range of temperature of 30°C-75°C, and 380με of maximum strain were applied; being the sensitivities achieved of 127.5pm/°C and -19.1pm/με respectively. Because the system uses an optical interrogator as unique active element, the system presents a cost-effective feature.

  • Simultaneous and quasi-independent strain and temperature sensor based on microstructured optical fiber
    25th International Conference on Optical Fiber Sensors, 2017
    Co-Authors: A. Lopez Aldaba, Raphaël Jamier, Jean-louis Auguste, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and quasi-independent strain and temperature measurements is presented. The interrogation of the sensing head has been carried out by monitoring the FFT phase variations of two of the microstructured optical fiber (MOF) cavity Interference frequencies. This method is independent of the signal amplitude and also avoids the need to track the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensor is operated within a range of temperature of 30°C–75°C, and 380μe of maximum strain were applied; being the sensitivities achieved of 127.5pm/°C and −19.1pm/μe respectively. Because the system uses an optical interrogator as unique active element, the system presents a cost-effective feature.

  • SnO2-MOF-Fabry-Pérot humidity optical sensor system based on fast Fourier transform technique
    2016
    Co-Authors: Aitor Lopez-aldaba, D Lopez-torres, J Ascorbe, S Rota, C Elosua, Manuel Lopez-amo, Francisco J. Arregui, Jean-louis Auguste, Raphaël Jamier, Philippe Roy
    Abstract:

    In this paper, a new sensor system for relative humidity measurements based on a SnO2 sputtering deposition on a microstructure (MOF) low-finesse Fabry-Pérot sensing head is presented and characterized. The interrogation of the sensing head is carried out by monitoring the fast Fourier transform phase variations of the FP Interference Frequency. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum; moreover, it is applicable networks that require narrow band sensors, allowing high multiplexation rates. The sensor is operated within a wide humidity range (20%–90% relative humidity) with a maximum sensitivity achieved of 0.14rad/%. The system uses an optical interrogator as unique active element which presents a cost-effective feature.

Aitor Lopez-aldaba - One of the best experts on this subject based on the ideXlab platform.

  • Simultaneous Strain and Temperature Multipoint Sensor Based on Microstructured Optical Fiber
    Journal of Lightwave Technology, 2018
    Co-Authors: Aitor Lopez-aldaba, Jean-louis Auguste, Raphaël Jamier, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and independent multipoint strain and temperature measurements is presented. The interrogation of the sensing heads has been carried out by monitoring their fast Fourier transform phase variations. In particular, two of each microstructured optical fiber cavity Interference frequencies were used for the measures. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensing heads present birefringent and multimodal properties, and therefore, both characteristics lead to their own Interference with different properties and sensitivities. The multiplexing capability of the sensing heads and the interrogator method has also been tested and validated. Sensors were operated within a range of temperature 30 °C–80 °C and a deformation of ∼450 μϵ was applied. Crosstalk between measurements can be corrected through simple math operations leading to independent and crosstalk-free multipoint and multiparameter sensors.

  • Simultaneous strain and temperature multipoint sensor based on microstructured optical fiber
    Journal of Lightwave Technology, 2017
    Co-Authors: Aitor Lopez-aldaba, Jean-louis Auguste, Raphaël Jamier, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and independent multipoint strain and temperature measurements is presented. The interrogation of the sensing heads has been carried out by monitoring their FFT phase variations. In particular, two of each microstructured optical fiber (MOF) cavity Interference frequencies were used for the measures. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensing heads present birefringent and multimodal properties and therefore both characteristics lead to their own Interference with different properties and sensitivities. The multiplexing capability of the sensing heads and the interrogator method has also been tested and validated. Sensors were operated within a range of temperature 30°C-80°C and a deformation of ~450 was applied. Crosstalk between measurements can be corrected through simple math operations leading to independent and crosstalk-free multipoint and multiparameter sensors.

  • SnO2-MOF-Fabry-Pérot humidity optical sensor system based on fast Fourier transform technique
    2016
    Co-Authors: Aitor Lopez-aldaba, D Lopez-torres, J Ascorbe, S Rota, C Elosua, Manuel Lopez-amo, Francisco J. Arregui, Jean-louis Auguste, Raphaël Jamier, Philippe Roy
    Abstract:

    In this paper, a new sensor system for relative humidity measurements based on a SnO2 sputtering deposition on a microstructure (MOF) low-finesse Fabry-Pérot sensing head is presented and characterized. The interrogation of the sensing head is carried out by monitoring the fast Fourier transform phase variations of the FP Interference Frequency. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum; moreover, it is applicable networks that require narrow band sensors, allowing high multiplexation rates. The sensor is operated within a wide humidity range (20%–90% relative humidity) with a maximum sensitivity achieved of 0.14rad/%. The system uses an optical interrogator as unique active element which presents a cost-effective feature.

  • Nanowire humidity optical sensor system based on fast Fourier transform technique
    24th International Conference on Optical Fibre Sensors, 2015
    Co-Authors: Sergio Rota-rodrigo, Aitor Lopez-aldaba, Rosa Ana Perez-herrera, M. C. Lopez Bautista, Óscar Esteban, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for relative humidity measurements based on its interaction with the evanescent field of a nanowire is presented. The interrogation of the sensing head is carried out by monitoring the fast Fourier transform phase variations of one of the nanowire Interference frequencies. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensor is operated within a wide humidity range (20%–70% relative humidity) with a maximum sensitivity achieved of 0.14rad/% relative humidity. Finally, due to the system uses an optical interrogator as unique active element, the system presents a cost-effective feature.

Jean-louis Auguste - One of the best experts on this subject based on the ideXlab platform.

  • Simultaneous Strain and Temperature Multipoint Sensor Based on Microstructured Optical Fiber
    Journal of Lightwave Technology, 2018
    Co-Authors: Aitor Lopez-aldaba, Jean-louis Auguste, Raphaël Jamier, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and independent multipoint strain and temperature measurements is presented. The interrogation of the sensing heads has been carried out by monitoring their fast Fourier transform phase variations. In particular, two of each microstructured optical fiber cavity Interference frequencies were used for the measures. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensing heads present birefringent and multimodal properties, and therefore, both characteristics lead to their own Interference with different properties and sensitivities. The multiplexing capability of the sensing heads and the interrogator method has also been tested and validated. Sensors were operated within a range of temperature 30 °C–80 °C and a deformation of ∼450 μϵ was applied. Crosstalk between measurements can be corrected through simple math operations leading to independent and crosstalk-free multipoint and multiparameter sensors.

  • Simultaneous strain and temperature multipoint sensor based on microstructured optical fiber
    Journal of Lightwave Technology, 2017
    Co-Authors: Aitor Lopez-aldaba, Jean-louis Auguste, Raphaël Jamier, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and independent multipoint strain and temperature measurements is presented. The interrogation of the sensing heads has been carried out by monitoring their FFT phase variations. In particular, two of each microstructured optical fiber (MOF) cavity Interference frequencies were used for the measures. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensing heads present birefringent and multimodal properties and therefore both characteristics lead to their own Interference with different properties and sensitivities. The multiplexing capability of the sensing heads and the interrogator method has also been tested and validated. Sensors were operated within a range of temperature 30°C-80°C and a deformation of ~450 was applied. Crosstalk between measurements can be corrected through simple math operations leading to independent and crosstalk-free multipoint and multiparameter sensors.

  • Simultaneous and quasi-independent strain and temperature sensor based on microstructured optical fiber
    2017 25th Optical Fiber Sensors Conference (OFS), 2017
    Co-Authors: Lopez A. Aldaba, Raphaël Jamier, Jean-louis Auguste, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and quasi-independent strain and temperature measurements is presented. The interrogation of the sensing head has been carried out by monitoring the FFT phase variations of two of the microstructured optical fiber (MOF) cavity Interference frequencies. This method is independent of the signal amplitude and also avoids the need to track the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensor is operated within a range of temperature of 30°C-75°C, and 380με of maximum strain were applied; being the sensitivities achieved of 127.5pm/°C and -19.1pm/με respectively. Because the system uses an optical interrogator as unique active element, the system presents a cost-effective feature.

  • Simultaneous and quasi-independent strain and temperature sensor based on microstructured optical fiber
    25th International Conference on Optical Fiber Sensors, 2017
    Co-Authors: A. Lopez Aldaba, Raphaël Jamier, Jean-louis Auguste, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and quasi-independent strain and temperature measurements is presented. The interrogation of the sensing head has been carried out by monitoring the FFT phase variations of two of the microstructured optical fiber (MOF) cavity Interference frequencies. This method is independent of the signal amplitude and also avoids the need to track the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensor is operated within a range of temperature of 30°C–75°C, and 380μe of maximum strain were applied; being the sensitivities achieved of 127.5pm/°C and −19.1pm/μe respectively. Because the system uses an optical interrogator as unique active element, the system presents a cost-effective feature.

  • SnO2-MOF-Fabry-Pérot humidity optical sensor system based on fast Fourier transform technique
    2016
    Co-Authors: Aitor Lopez-aldaba, D Lopez-torres, J Ascorbe, S Rota, C Elosua, Manuel Lopez-amo, Francisco J. Arregui, Jean-louis Auguste, Raphaël Jamier, Philippe Roy
    Abstract:

    In this paper, a new sensor system for relative humidity measurements based on a SnO2 sputtering deposition on a microstructure (MOF) low-finesse Fabry-Pérot sensing head is presented and characterized. The interrogation of the sensing head is carried out by monitoring the fast Fourier transform phase variations of the FP Interference Frequency. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum; moreover, it is applicable networks that require narrow band sensors, allowing high multiplexation rates. The sensor is operated within a wide humidity range (20%–90% relative humidity) with a maximum sensitivity achieved of 0.14rad/%. The system uses an optical interrogator as unique active element which presents a cost-effective feature.

Raphaël Jamier - One of the best experts on this subject based on the ideXlab platform.

  • Simultaneous Strain and Temperature Multipoint Sensor Based on Microstructured Optical Fiber
    Journal of Lightwave Technology, 2018
    Co-Authors: Aitor Lopez-aldaba, Jean-louis Auguste, Raphaël Jamier, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and independent multipoint strain and temperature measurements is presented. The interrogation of the sensing heads has been carried out by monitoring their fast Fourier transform phase variations. In particular, two of each microstructured optical fiber cavity Interference frequencies were used for the measures. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensing heads present birefringent and multimodal properties, and therefore, both characteristics lead to their own Interference with different properties and sensitivities. The multiplexing capability of the sensing heads and the interrogator method has also been tested and validated. Sensors were operated within a range of temperature 30 °C–80 °C and a deformation of ∼450 μϵ was applied. Crosstalk between measurements can be corrected through simple math operations leading to independent and crosstalk-free multipoint and multiparameter sensors.

  • Simultaneous strain and temperature multipoint sensor based on microstructured optical fiber
    Journal of Lightwave Technology, 2017
    Co-Authors: Aitor Lopez-aldaba, Jean-louis Auguste, Raphaël Jamier, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and independent multipoint strain and temperature measurements is presented. The interrogation of the sensing heads has been carried out by monitoring their FFT phase variations. In particular, two of each microstructured optical fiber (MOF) cavity Interference frequencies were used for the measures. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensing heads present birefringent and multimodal properties and therefore both characteristics lead to their own Interference with different properties and sensitivities. The multiplexing capability of the sensing heads and the interrogator method has also been tested and validated. Sensors were operated within a range of temperature 30°C-80°C and a deformation of ~450 was applied. Crosstalk between measurements can be corrected through simple math operations leading to independent and crosstalk-free multipoint and multiparameter sensors.

  • Simultaneous and quasi-independent strain and temperature sensor based on microstructured optical fiber
    2017 25th Optical Fiber Sensors Conference (OFS), 2017
    Co-Authors: Lopez A. Aldaba, Raphaël Jamier, Jean-louis Auguste, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and quasi-independent strain and temperature measurements is presented. The interrogation of the sensing head has been carried out by monitoring the FFT phase variations of two of the microstructured optical fiber (MOF) cavity Interference frequencies. This method is independent of the signal amplitude and also avoids the need to track the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensor is operated within a range of temperature of 30°C-75°C, and 380με of maximum strain were applied; being the sensitivities achieved of 127.5pm/°C and -19.1pm/με respectively. Because the system uses an optical interrogator as unique active element, the system presents a cost-effective feature.

  • Simultaneous and quasi-independent strain and temperature sensor based on microstructured optical fiber
    25th International Conference on Optical Fiber Sensors, 2017
    Co-Authors: A. Lopez Aldaba, Raphaël Jamier, Jean-louis Auguste, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and quasi-independent strain and temperature measurements is presented. The interrogation of the sensing head has been carried out by monitoring the FFT phase variations of two of the microstructured optical fiber (MOF) cavity Interference frequencies. This method is independent of the signal amplitude and also avoids the need to track the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensor is operated within a range of temperature of 30°C–75°C, and 380μe of maximum strain were applied; being the sensitivities achieved of 127.5pm/°C and −19.1pm/μe respectively. Because the system uses an optical interrogator as unique active element, the system presents a cost-effective feature.

  • SnO2-MOF-Fabry-Pérot humidity optical sensor system based on fast Fourier transform technique
    2016
    Co-Authors: Aitor Lopez-aldaba, D Lopez-torres, J Ascorbe, S Rota, C Elosua, Manuel Lopez-amo, Francisco J. Arregui, Jean-louis Auguste, Raphaël Jamier, Philippe Roy
    Abstract:

    In this paper, a new sensor system for relative humidity measurements based on a SnO2 sputtering deposition on a microstructure (MOF) low-finesse Fabry-Pérot sensing head is presented and characterized. The interrogation of the sensing head is carried out by monitoring the fast Fourier transform phase variations of the FP Interference Frequency. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum; moreover, it is applicable networks that require narrow band sensors, allowing high multiplexation rates. The sensor is operated within a wide humidity range (20%–90% relative humidity) with a maximum sensitivity achieved of 0.14rad/%. The system uses an optical interrogator as unique active element which presents a cost-effective feature.

Philippe Roy - One of the best experts on this subject based on the ideXlab platform.

  • Simultaneous Strain and Temperature Multipoint Sensor Based on Microstructured Optical Fiber
    Journal of Lightwave Technology, 2018
    Co-Authors: Aitor Lopez-aldaba, Jean-louis Auguste, Raphaël Jamier, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and independent multipoint strain and temperature measurements is presented. The interrogation of the sensing heads has been carried out by monitoring their fast Fourier transform phase variations. In particular, two of each microstructured optical fiber cavity Interference frequencies were used for the measures. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensing heads present birefringent and multimodal properties, and therefore, both characteristics lead to their own Interference with different properties and sensitivities. The multiplexing capability of the sensing heads and the interrogator method has also been tested and validated. Sensors were operated within a range of temperature 30 °C–80 °C and a deformation of ∼450 μϵ was applied. Crosstalk between measurements can be corrected through simple math operations leading to independent and crosstalk-free multipoint and multiparameter sensors.

  • Simultaneous strain and temperature multipoint sensor based on microstructured optical fiber
    Journal of Lightwave Technology, 2017
    Co-Authors: Aitor Lopez-aldaba, Jean-louis Auguste, Raphaël Jamier, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and independent multipoint strain and temperature measurements is presented. The interrogation of the sensing heads has been carried out by monitoring their FFT phase variations. In particular, two of each microstructured optical fiber (MOF) cavity Interference frequencies were used for the measures. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensing heads present birefringent and multimodal properties and therefore both characteristics lead to their own Interference with different properties and sensitivities. The multiplexing capability of the sensing heads and the interrogator method has also been tested and validated. Sensors were operated within a range of temperature 30°C-80°C and a deformation of ~450 was applied. Crosstalk between measurements can be corrected through simple math operations leading to independent and crosstalk-free multipoint and multiparameter sensors.

  • Simultaneous and quasi-independent strain and temperature sensor based on microstructured optical fiber
    2017 25th Optical Fiber Sensors Conference (OFS), 2017
    Co-Authors: Lopez A. Aldaba, Raphaël Jamier, Jean-louis Auguste, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and quasi-independent strain and temperature measurements is presented. The interrogation of the sensing head has been carried out by monitoring the FFT phase variations of two of the microstructured optical fiber (MOF) cavity Interference frequencies. This method is independent of the signal amplitude and also avoids the need to track the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensor is operated within a range of temperature of 30°C-75°C, and 380με of maximum strain were applied; being the sensitivities achieved of 127.5pm/°C and -19.1pm/με respectively. Because the system uses an optical interrogator as unique active element, the system presents a cost-effective feature.

  • Simultaneous and quasi-independent strain and temperature sensor based on microstructured optical fiber
    25th International Conference on Optical Fiber Sensors, 2017
    Co-Authors: A. Lopez Aldaba, Raphaël Jamier, Jean-louis Auguste, Philippe Roy, Manuel Lopez-amo
    Abstract:

    In this paper, a new sensor system for simultaneous and quasi-independent strain and temperature measurements is presented. The interrogation of the sensing head has been carried out by monitoring the FFT phase variations of two of the microstructured optical fiber (MOF) cavity Interference frequencies. This method is independent of the signal amplitude and also avoids the need to track the wavelength evolution in the spectrum, which can be a handicap when there are multiple Interference Frequency components with different sensitivities. The sensor is operated within a range of temperature of 30°C–75°C, and 380μe of maximum strain were applied; being the sensitivities achieved of 127.5pm/°C and −19.1pm/μe respectively. Because the system uses an optical interrogator as unique active element, the system presents a cost-effective feature.

  • SnO2-MOF-Fabry-Pérot humidity optical sensor system based on fast Fourier transform technique
    2016
    Co-Authors: Aitor Lopez-aldaba, D Lopez-torres, J Ascorbe, S Rota, C Elosua, Manuel Lopez-amo, Francisco J. Arregui, Jean-louis Auguste, Raphaël Jamier, Philippe Roy
    Abstract:

    In this paper, a new sensor system for relative humidity measurements based on a SnO2 sputtering deposition on a microstructure (MOF) low-finesse Fabry-Pérot sensing head is presented and characterized. The interrogation of the sensing head is carried out by monitoring the fast Fourier transform phase variations of the FP Interference Frequency. This method is independent of the signal amplitude and also avoids the necessity of tracking the wavelength evolution in the spectrum; moreover, it is applicable networks that require narrow band sensors, allowing high multiplexation rates. The sensor is operated within a wide humidity range (20%–90% relative humidity) with a maximum sensitivity achieved of 0.14rad/%. The system uses an optical interrogator as unique active element which presents a cost-effective feature.