Miniaturized air sampler for saw electronic nose based on differential adsorbent scrubbing

摘要

The present invention relates to an electronic nose system comprising: a solenoid valve having a first input port, a second input port, an output port, a first operating state and a second operating state, said first and second input ports being operatively coupled to a source of gas, wherein the first input port is coupled to the source of gas via one or more filters located in parallel; a sensor array being operatively coupled to the output port of the solenoid valve and including one or more sensors for generating a response pattern in response to adsorption of chemical warfare agents present in the gas, wherein each of the sensors in the sensor array having a different reference point; a pump for sucking gas into the sensor array during the first and second operating states via the first and second input ports respectively; and a control system operatively coupled to the solenoid valve, sensor array and pump for controlling operations thereof