Design and performance evaluation of polyvinyl alcohol/polyimide coated optical fibre grating-based humidity sensors.
Journal Article
Alwis, L., Sun, T., & Grattan, K. T. V. (2013)
Design and performance evaluation of polyvinyl alcohol/polyimide coated optical fibre grating-based humidity sensors. Review of Scientific Instruments, 84, 25002. https://doi.org/10.1063/1.4789768
Optical fibre grating based sensors make a significant contribution to relative humidity measurement for various applications and a number of different designs and sensor conf...
Analysis of the Characteristics of PVA-Coated LPG-Based Sensors to Coating Thickness and Changes in the External Refractive Index.
Journal Article
Alwis, L., Bremer, K., Sun, T., & Grattan, K. T. V. (2013)
Analysis of the Characteristics of PVA-Coated LPG-Based Sensors to Coating Thickness and Changes in the External Refractive Index. IEEE Sensors Journal, 13, 1117-1124. https://doi.org/10.1109/JSEN.2012.2230534
Recent research has shown that the transmission spectrum of a long period grating (LPG) written into an optical fiber is sensitive to the thickness and the refractive index (R...
Analysis of Polyimide-Coated Optical Fiber Long-Period Grating-Based Relative Humidity Sensor
Journal Article
Alwis, L., Sun, T., & Grattan, K. T. V. (2013)
Analysis of Polyimide-Coated Optical Fiber Long-Period Grating-Based Relative Humidity Sensor. IEEE Sensors Journal, 13, 767-771. https://doi.org/10.1109/JSEN.2012.2227714
A long-period grating (LPG)-based relative humidity (RH) sensor is developed, based on using a tailored layered polyimide coating on the grating region at the distal end of th...
Optical fibre-based sensor technology for humidity and moisture measurement: Review of recent progress
Journal Article
Alwis, L., Sun, T., & Grattan, K. (2013)
Optical fibre-based sensor technology for humidity and moisture measurement: Review of recent progress. Measurement : journal of the International Measurement Confederation, 46(10), 4052-4074. https://doi.org/10.1016/j.measurement.2013.07.030
Humidity and moisture sensing is becoming increasingly important in industry and through a wide spectrum of applications and a review of research activity in the field across ...
Optimization of a Long Period Grating Distal Probe for Temperature and Refractive Index Measurement
Conference Proceeding
Alwis, L., Sun, T., & Grattan, K. T. (2012)
Optimization of a Long Period Grating Distal Probe for Temperature and Refractive Index Measurement. In 26th European Conference on Solid-State Transducers, EUROSENSOR 2012, (718-721). https://doi.org/10.1016/j.proeng.2012.09.248
Long Period Gratings (LPG)-based sensors are widely used due to their higher sensitivity to various measurands. However, a single grating based LPG sensor system has the disad...
Refractive index sensor employing PVA-coated long period grating technology
Conference Proceeding
Alwis, L., Bremer, K., Sun, T., & Grattan, K. T. V. (2012)
Refractive index sensor employing PVA-coated long period grating technology. In W. Jin, Y. Liao, D. D. Sampson, R. Yamauchi, Y. Chung, K. Nakamura, & Y. Rao (Eds.), Proceedings Volume 8421 OFS2012 22nd International Conference on Optical Fiber Sensorhttps://doi.org/10.1117/12.974682
The sensitivity of a Long Period Grating (LPG)-based refractive index (RI) sensor has been enhanced through an appropriate coating of a thin polymer layer, with a higher RI th...
Field Test - Strengthening and Monitoring of the Frövi Bridge
Conference Proceeding
Kerrouche, A., Boyle, W., Gebremichael, Y., Alwis, L., Grattan, K., Taljsten, B., & Bernnitz, A. (2008)
Field Test - Strengthening and Monitoring of the Frövi Bridge. In H. Koh, & D. Frangopol (Eds.), Bridge Maintenance, Safety Management, Health Monitoring and Informatics. https://doi.org/10.1201/9781439828434
No abstract available.