Selective Low-Temperature Hydrogen Catalytic Sensor
IEEE Sensors Letters(2022)
摘要
The research demonstrates for the first time the high selectivity of catalytic hydrogen sensors to other hydrocarbons (methane, propane, hexane, butane, ethane, and ethylene) at a temperature less than 70 °С. Two circuits were used to measure the response of the sensors: a Wheatstone bridge circuit and a divider circuit. Hydrogen measurement was conducted within a temperature range of 66–130 °С. The sensors exhibited high sensitivity (25–35 mV/%) and low power consumption (approximately 8.6 mW). The Wheatstone bridge circuit was observed to have the maximum value of selectivity and sensitivity.
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关键词
Sensor phenomena,hydrogen catalytic sensor,low-temperature measurement,power consumption,selectivity,sensitivity
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