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Graphene based multifunctional flame sensor

机译：基于石墨烯的多功能火焰传感器

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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.
机译：近年来，石墨烯因其独特的电学和热学性质以及高表面积而备受关注，因此成为一种理想的传感材料。我们通过利用沿两个不同方向的几层石墨烯对火焰的响应来报告基于石墨烯的火焰传感器的新型配置，其中火焰检测是由传热机制的差异引起的。开发了具有信号调节电路的完整传感器模块，该信号调节电路可补偿传感器基线的任何漂移，并在微控制器中实施火焰检测算法以检测火焰。每个传感器的预定义阈值是可调的，可以根据火焰的性质进行更改，因此提出了一种可用于检测任何类型的火焰的系统。这一发现还提出了一种可扩展的方法，为修改复杂的传感方案开辟了道路。

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