FIELD: chemistry.
SUBSTANCE: disclosed gas analysis sensor has a substrate, a semiconductor film which can be brought into contact with a gaseous atmosphere, on the surface of which there is a first and a second electrode, and there is a third electrode on the surface of the substrate which can be connected to an external electrical circuit, on which there is a ferroelectric film, one of the surfaces of which is in contact with the third electrode and the second - with the semiconductor film. The disclosed gas analysis system has a gas analysis sensor, an information processing unit, a controlled voltage source, a switch and a controller. The third electrode of the gas analysis sensor is connected to the first output of the controlled voltage source, whose second output is connected to the first input of the switch, the second and third inputs of which are connected to the first and second electrodes, respectively. The first and second inputs of the switch are connected to the first and second outputs of the information processing unit, respectively, the input of which is connected to the third output of the controller, whose first output is connected to the third input of the switch, and the second output of the controller is connected to the input of the controlled voltage source.
EFFECT: invention enables to vary sensitivity of the gas analysis sensor and gas analysis system during operation.
2 cl, 1 dwg
Title | Year | Author | Number |
---|---|---|---|
OPTICAL RADIATION SENSOR AND OPTICAL RADIATION MONITORING SYSTEM USING THIS SENSOR | 2005 |
|
RU2281585C1 |
DIELECTRIC GAS SENSOR | 2021 |
|
RU2779966C1 |
DETECTING ELEMENT OF GAS SENSOR | 2007 |
|
RU2343470C1 |
MANUFACTURING METHOD OF GAS SENSOR WITH NANOSTRUCTURE, AND GAS SENSOR ON ITS BASIS | 2013 |
|
RU2532428C1 |
METHOD FOR ANALYSIS OF COMPOSITION OF GAS MIXTURE AND DEFINITION OF CONCENTRATION OF ITS COMPONENTS AND DEVICE FOR ITS IMPLEMENTATION | 2009 |
|
RU2392614C1 |
SENSOR BASED ON TWO-DIMENSIONAL QUANTUM STRUCTURE | 2023 |
|
RU2814091C1 |
PHOTODETECTOR | 1985 |
|
SU1345983A1 |
SEMICONDUCTOR GAS SENSOR | 2012 |
|
RU2509303C1 |
SOLID GAS SENSOR | 1996 |
|
RU2100801C1 |
DIFFERENTIAL SENSOR FOR GAS ANALYSER | 2009 |
|
RU2403563C1 |
Authors
Dates
2011-02-27—Published
2010-01-11—Filed