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Virtual sensor array and preparation method thereof

A virtual sensor, sensor technology, applied in the direction of material resistance, can solve the problems of high power consumption, large volume, complex structure, etc., to achieve the effect of reducing power consumption, small size, and reducing the overall volume

Inactive Publication Date: 2019-03-12
XI AN JIAOTONG UNIV
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Problems solved by technology

[0004] Aiming at the problem of large power consumption caused by applying a constant heating voltage to raise the temperature of the traditional gas sensor array, the present disclosure adopts the heating method of applying pulse voltage to reduce the power consumption of the sensor array; in view of the problems of complex structure and large volume of the existing large-scale sensor array, This disclosure uses the temperature characteristics of different nanomaterials in response to gas, regards each different temperature point as a "virtual sensor", and can achieve the effect of obtaining more experimental data when the physical scale of the sensor array is small

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Embodiment Construction

[0033] The technical solution of the present disclosure will be described in detail below with reference to the drawings and embodiments.

[0034] see figure 1 , a virtual sensor array, including a heating substrate 1, a sensor substrate 2, a test electrode 3 and a nano gas-sensitive material 5; wherein,

[0035] The sensor substrate 2 is placed on the heating base 1;

[0036] The test electrode 3 is engraved on the sensor substrate 2;

[0037] The test electrode 3 leads to an electrode lead 4;

[0038] The nanometer gas sensitive material 5 is coated on the central area of ​​the surface of the test electrode 3 .

[0039] The above-mentioned embodiment completely discloses the technical solution of the present invention. The virtual sensor array is prepared by using the temperature characteristics of different nano-gas sensitive materials 5 in response to gases, which has the characteristics of greatly reducing the scale of the sensor array and reducing the overall volume o...

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Abstract

The invention discloses a virtual sensor array which comprises a heating base, a sensor substrate, a gas sensitive nano-material and a testing electrode. The invention further discloses a method for preparing the virtual sensor array. A sensor is prepared from the gas sensitive nano-material, experimental temperature is changed by pulse heating voltage, the virtual sensor array is formed, the physical array scale of the sensor can be decreased, online monitoring of electric power equipment is facilitated, and working energy consumption can be effectively reduced.

Description

technical field [0001] The disclosure belongs to the field of detection of gas decomposition products, and in particular relates to a virtual sensor array and a preparation method thereof. Background technique [0002] Sulfur hexafluoride (SF 6 ) is widely used in gas-insulated combined electrical appliances (GIS), transformers, transformers and other power equipment due to its excellent insulation performance and arc extinguishing performance. When arcs, sparks or corona discharges occur inside these electrical equipment, some SF 6 Gas molecules undergo a series of reactions such as decomposition under high temperature discharge, and finally generate several typical stable decomposition products: hydrogen sulfide (H 2 S), sulfur dioxide (SO 2 ), thionyl fluoride (SOF 2 ), sulfuryl fluoride (SO 2 f 2 )Wait. These toxic compounds not only threaten the health of maintenance personnel, but also accelerate the aging of equipment insulation and corrode the metal surface of...

Claims

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Application Information

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IPC IPC(8): G01N27/12
CPCG01N27/12
Inventor 王小华李渭娟褚继峰王大伟兰天松杨旭杨爱军荣命哲
Owner XI AN JIAOTONG UNIV
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