Abstract
A novel type of gas sensor based on a pyroelectric thin-film transducer under a.c. thermal excitation was studied. The pyroelectric film is deposited onto a dielectric material (substrate) and this film is sandwiched between two metal electrodes. The low frequency thermal wave is generated by passing a current through a strip-shaped resistive film that is deposited on the opposite side of the substrate. The response of the sensor to natural gas and high purity methane was examined. It was found to be reversible, reproducible, and symmetric when the natural gas was cycled. The sensor was able to detect a wide range of natural gas and methane concentrations in nitrogen (2.5–100% vol.) and its response was linear with increasing concentrations for both gases. The results have important implications for the monitoring of natural gas composition and the development of fuel management systems in natural gas fueled vehicles.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
