A Zirconia Type Limiting Current Oxygen Sensor
A technology of limiting current and oxygen sensor, applied in the field of oxygen sensor, can solve the problems of difficulty in controlling the limit current, unable to meet the requirements of detection, narrow detection range of oxygen concentration, etc., to improve the detection range, realize full-scale detection, production low cost effect
Active Publication Date: 2021-12-14
SHENZHEN AMPRON TECH CORP
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Problems solved by technology
However, the current oxygen sensor has high production cost, it is difficult to control the limit current, and the detection range of oxygen concentration is narrow, which cannot meet the requirements of some users for full-scale detection of oxygen concentration.
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[0022] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. The present application can be implemented in many different forms, and is not limited to the implementation manner described in this embodiment. The purpose of providing the following specific embodiments is to facilitate a clearer and more thorough understanding of the disclosure of the present application, wherein the words indicating orientation such as up, down, left, and right are only for the positions of the structures shown in the corresponding drawings.
[0023] see Figure 1-2 As shown, the present invention relates to a zirconia type limiting current oxygen sensor, which includes a breathable mesh 1, a sensitive ceramic element 2, a casing 3, a base 4, a conductive column 5, a conductive wire 6, a fixed glass glaze 7, thermal insulation cotton 8 and insulating Glass glaze 9, the base 4 and the lower end of the shell 3 a...
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Abstract
The invention relates to the field of oxygen sensors, in particular to a zirconia type limiting current oxygen sensor. The zirconia type limiting current oxygen sensor of the present invention mainly includes a package casing, a conductive column, a sensitive element, a thermal insulation cotton, and a conductive platinum wire, wherein the sensitive ceramic element is prepared from zirconia, alumina, precious metal platinum, etc. through the HTCC high temperature co-fired ceramic process made. Among them, zirconia is a solid electrolyte stably formed by doped yttrium oxide, which has high oxygen ion conductivity and low electronic conductivity at high temperature. The precious metal platinum is an ideal catalytic material, which can reduce oxygen molecules to oxygen ions and make It effectively migrates to the zirconia solid electrolyte layer, which can be used as both a catalyst and a current collector. The invention has low production cost, can better control the magnitude of the limiting current, ensures that the oxygen sensor has high signal strength and signal sensitivity, thus improves the detection range of the oxygen concentration, and further realizes the full-scale detection of the oxygen concentration.
Description
technical field [0001] The invention relates to the field of oxygen sensors, in particular to a zirconia type limiting current oxygen sensor. Background technique [0002] Zirconia-type limiting current oxygen sensors have been used for many years in various industries and applications such as industry, medical, storage, diving, household appliances, and biological cultivation. The zirconia oxygen sensor converts the oxygen signal into an electrical signal through a chemical reaction, and the strength of the electrical signal represents the level of oxygen concentration. Common medical uses include closed-loop control through the monitoring of the oxygen prepared by the diffused oxygen generator, and industrial uses include the measurement and monitoring of the internal oxygen concentration of pipelines, instruments, etc. to control the work of the equipment. However, the current oxygen sensor has high production cost, it is difficult to control the magnitude of the limitin...
Claims
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IPC IPC(8): G01N27/409
CPCG01N27/409
Inventor 吴永文胡沙沙黄宗波廖瑞楷王志伟
Owner SHENZHEN AMPRON TECH CORP