Unlock instant, AI-driven research and patent intelligence for your innovation.

Sheet-structure integrated catalytic combustion type combustible gas sensor and preparation method thereof

A catalytic combustion type, gas sensor technology, applied in the field of sensors, can solve the problems of complex manufacturing process of detection elements and compensation elements, large sensor size, complex packaging form, etc., to increase heat transfer efficiency, improve performance indicators, and improve combustible gas catalysis The effect of burn rate

Inactive Publication Date: 2020-03-06
NO 49 INST CHINESE ELECTRONICS SCI & TECH GRP
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the existing catalytic combustion combustible gas sensor detecting elements and compensating elements complex manufacturing process, low heat transfer efficiency, high power consumption, separate detecting elements and compensating elements lead to large sensor size, complex packaging form and other problems, Provided is a chip structure integrated catalytic combustion combustible gas sensor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sheet-structure integrated catalytic combustion type combustible gas sensor and preparation method thereof
  • Sheet-structure integrated catalytic combustion type combustible gas sensor and preparation method thereof
  • Sheet-structure integrated catalytic combustion type combustible gas sensor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0055] Specific implementation mode one: the following combination Figure 1-Figure 5 This embodiment is described. The integrated catalytic combustion combustible gas sensor with chip structure described in this embodiment includes two layers of ceramic substrates, the lower ceramic substrate is provided with a signal transmission layer 1, and the upper ceramic substrate is The lower surface is provided with a resistance sensing layer 2, and the upper surface of the upper ceramic substrate is provided with a catalytic combustion layer 3;

[0056] The signal transmission layer 1 includes four lead pads, two signal transmission pads, four upper surface pads and two resistance adjustment regions; the four lead pads and two signal transmission pads are arranged on the lower ceramic sheet On the lower surface of the substrate, the four lead pads are respectively the first lead pad 1-1, the second lead pad 1-2, the third lead pad 1-3 and the fourth lead pad 1-4; A first signal tra...

specific Embodiment approach 2

[0078] Specific implementation mode two: the following combination Figure 1-Figure 5 Describe this embodiment, the preparation method of the chip structure integrated catalytic combustion combustible gas sensor described in this embodiment, the preparation method is realized based on the chip structure integrated catalytic combustion combustible gas sensor, the specific process of the preparation method is:

[0079] S1. Making a first through hole 1-13, a second through hole 1-14, a third through hole 1-15 and a fourth through hole 1-16 on the lower ceramic substrate by punching technology;

[0080] Printing a Pt-filled metal material in the first through hole 1-13, the second through hole 1-14, the third through hole 1-15 and the fourth through hole 1-16 by screen printing;

[0081] Use the screen printing method to print four lead pads, two signal transmission pads and two resistance adjustment areas on the lower surface of the lower ceramic substrate with Pt metal material...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
electrical resistanceaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a sheet-structure integrated catalytic combustion type combustible gas sensor and a preparation method thereof, belongs to the technical field of sensors, and aims to solve theproblems of complex manufacturing process, low heat transfer efficiency and high power consumption of a detection element and a compensation element of a conventional catalytic combustion type combustible gas sensor, and large sensor size, complex packaging form and the like caused by separated detection element and compensation element. The combustible gas sensor comprises two ceramic chip substrates, a signal transmission layer is arranged on the lower ceramic chip substrate, and four lead bonding pads, two signal transmission bonding pads and two resistance adjusting areas are arranged onthe lower surface of the lower ceramic chip substrate; and four upper surface bonding pads are arranged on the upper surface. A resistance sensing layer is arranged on the lower surface of the upper ceramic chip substrate, and comprises two sensing resistors; a catalytic combustion layer is arranged on the upper surface of the upper ceramic chip substrate, and comprises two catalytic units, wherein the two catalytic units form a detection element and a compensation element respectively. Different types of combustible gases can be detected by changing the type of the catalyst. The sensor provided by the invention is used for detecting and early warning combustible gas.

Description

technical field [0001] The invention relates to a chip structure integrated catalytic combustion combustible gas sensor and a preparation method thereof, belonging to the technical field of sensors. Background technique [0002] Combustible gases in the environment mainly include hydrogen, methane, propane, ethanol, acetylene, organic compounds, etc. When the flammable gases in the air accumulate to a certain concentration, it is very easy to cause safety accidents such as combustion and explosion, which will cause serious damage to human health and public property. Losses, especially in environments such as underground gas pipeline networks, coal mines, mines, and gas transmission stations, are very likely to cause safety accidents. For example, in 2017, a natural gas pipeline in Shazi Town, Guizhou Province had a combustion explosion, resulting in many casualties; in 2019, a large gas explosion accident occurred in the Luling Coal Mine in Anhui Province, killing many miner...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/16
CPCG01N27/16
Inventor 杨永超于海超刘玺金鹏飞文吉延程振乾秦浩
Owner NO 49 INST CHINESE ELECTRONICS SCI & TECH GRP