Research Output

Fibre Grating-based Sensor Design for Humidity Measurement in Chemically Harsh Environment

  A temperature compensated Relative Humidity (RH) sensor incorporating Fibre Bragg Gratings (FBGs) has been developed to be tested in extremely harsh gaseous acidic environment. One FBG is coated with moisture sensitive polymer while the other was used for temperature compensation. The resonance wavelengths were chosen to be within suitable spectral bandwidths for efficient interpretation of both RH and temperature. The performance of the sensor was evaluated for use in challenging environment by trialing the sensors for over a month in a waste sewerage tank with highly acidic gaseous environment. The sensitivity of the sensor to RH/temperature is calculated to be 5 pm/%RH and 9 pm/̊C respectively

  • Type:

    Conference Paper

  • Publication Status:

    Published

  • Publisher

    Elsevier BV

  • DOI:

    10.1016/j.proeng.2016.11.359

  • Cross Ref:

    S1877705816336736

  • ISSN:

    1877-7058

  • Library of Congress:

    TA Engineering (General). Civil engineering (General)

  • Dewey Decimal Classification:

    620 Engineering and allied operations

Citation

Alwis, L. S. M., Sun, T. & Grattan, K. T. V. (2015). Fibre Grating-based Sensor Design for Humidity Measurement in Chemically Harsh Environment. Procedia Engineering. 168, 1317-1320. doi:10.1016/j.proeng.2016.11.359. ISSN 1877-7058

Authors

Keywords

Fibre Bragg Grating sensor, humidity sensor,

Monthly Views:

Available Documents