Molecular Probes for Detection of Subsurface Methane Leaks

Masoud Ghandehari, Gamal Khalil

Research output: Chapter in Book/Report/Conference proceedingChapter


A method for monitoring natural gas leaks was designed based on the highly sensitive measurement of oxygen, which would be displaced in the event of a subsurface volatile gas leak. A fiber optic sensor was made using a gas-permeable polymer cladding, doped with oxygen-responsive porphyrin. The evanescent field at the interface of the core and the cladding was used to detect gas leaks. Tests were carried out using methane gas leaks in a chamber filled with dry and wet sand. Results of sensitivity, response time and reversibility are presented.

Original languageEnglish (US)
Title of host publicationSmart Sensors, Measurement and Instrumentation
PublisherSpringer International Publishing
Number of pages11
StatePublished - 2018

Publication series

NameSmart Sensors, Measurement and Instrumentation
ISSN (Print)2194-8402
ISSN (Electronic)2194-8410

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Instrumentation
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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