title: Graphene based multifunctional flame sensor.
abstract: Recently, graphene has attracted much attention due to its unique electrical and thermal properties along with its high surface area, and hence presents an ideal sensing material. We report a novel configuration of a graphene based flame sensor by exploiting the response of few layer graphene to a flame along two different directions, where flame detection results from a difference in heat transfer mechanisms. A complete sensor module was developed with a signal conditioning circuit that compensates for any drift in the baseline of the sensor, along with a flame detection algorithm implemented in a microcontroller to detect the flame. A pre-defined threshold for either of the sensors is tunable, which can be varied based on the nature of the flame, hence presenting a system that can be used for detection of any kind of flame. This finding also presents a scalable method that opens avenues to modify complicated sensing schemes.
authors.affiliation: Department of Instrumentation and Applied Physics, Indian Institute of Science Bangalore, Karnataka 560012, India.
authors.forename: Darim B
authors.initials: DB
authors.lastname: Ferry
authors.forename: R
authors.initials: R
authors.lastname: Pavan Kumar
authors.forename: Siva K
authors.initials: SK
authors.lastname: Reddy
authors.forename: Anwesha
authors.initials: A
authors.lastname: Mukherjee
authors.forename: Abha
authors.initials: A
authors.lastname: Misra