15 December 1998 Detection of gas leaks along pipelines by spectrally tuned infrared imaging
Author Affiliations +
Abstract
We present a novel method developed for the localization of leaks along natural gas pipelines. Methane distributions in the atmosphere around the leaky pipeline are detected and visualized by spectrally tuned IR imaging. In contrast to conventional techniques which utilize laser radiation sources or scanning, we irradiate the overall region under investigation by 1 kW halogen lamps. The scene background is subtracted by a real-time computer evaluation of the image. The methane gas emitted from the leak creates a flickering cloud in the image which is easily recognized. Methane concentrations as low as 0.03 percent by volume are visible. The method was successfully tested under realistic conditions on a buried pipeline by a natural gas provider.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Werner Gross, Thomas Hierl, H. Scheuerpflug, U. Schirl, Max J. Schulz, "Detection of gas leaks along pipelines by spectrally tuned infrared imaging", Proc. SPIE 3493, Spectroscopic Atmospheric Environmental Monitoring Techniques, (15 December 1998); doi: 10.1117/12.332662; https://doi.org/10.1117/12.332662
PROCEEDINGS
5 PAGES


SHARE
Back to Top