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The ever-increasing application of wireless sensor networks in many different fields is causing a growing demand of low-cost energy-efficient sensors for monitoring physical variables such as temperature, pressure or gas concentration. This paper presents a conditioning system for low-cost non-dispersive infrared gas sensors used to measure the CO2 concentration in an open air environment. It mainly...
This paper presents a conditioning system for an amorphous silicon germanium (a-SiGe:H, B) microbolometer array for detection of heat sources in low-power sensing systems. It mainly consists of an amplification and switching circuit that adapts the small signal provided by the resistive microbolometer cell connected in a Wheatstone bridge to a voltage signal which can be easily read by a microcontroller...
The ever-increasing application of wireless sensor networks in many different fields is causing a growing demand of low-cost energy-efficient sensors for monitoring physical variables such as temperature, pressure or gas concentration. This paper presents a conditioning system for low-cost non-dispersive infrared gas sensors used to measure the CO2 concentration in an open air environment. It mainly...
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