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Trace oxygen analyzer

An analyzer and trace oxygen technology, which is applied to the analysis of materials, instruments, and material analysis through electromagnetic means, etc., can solve the problems that affect the detection accuracy of oxygen concentration of trace oxygen analyzers, and the infiltration effect is not very good.

Active Publication Date: 2013-02-13
CHONGQING CHUANYI ANALYZER CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0008] At present, trace oxygen analyzers are generally connected by stainless steel pipes on the gas path, and O-ring seals are used at the interface connections. During the work, the inventor found through careful analysis that the infiltration effect of O-rings on ambient oxygen There is no good inhibitory effect, and it will also produce a certain analytical adsorption effect on trace oxygen, which will eventually affect the detection accuracy of oxygen concentration of the trace oxygen analyzer

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Embodiment Construction

[0026] Please refer to figure 1 , is a structural schematic diagram of an embodiment of the trace oxygen analyzer of the present invention, which can be used in the fields of chemical industry, metallurgical industry, environmental monitoring, medical and health care, aerospace, electronic industry, etc., to measure the concentration of oxygen to test. The trace oxygen analyzer includes: a case body 101 , a gas circuit assembly 1 , a sensor assembly 2 , a signal processing circuit 3 and a display assembly 4 . The air circuit combination 1, the sensor combination 2, the signal processing circuit 3 and the display component 4 are connected in sequence, and all are fixed in the main body of the chassis by screwing or clamping.

[0027] When measuring the oxygen concentration, the gas to be measured enters the sensor combination 2 through the gas circuit combination 1. In the sensor combination 2, oxygen molecules penetrate into the sensor through the permeable membrane, and the ...

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Abstract

The embodiment of the invention provides a trace oxygen analyzer, which comprises a sensor assembly and a gas channel assembly, wherein various components inside the gas channel assembly as well as the gas channel assembly and the sensor assembly are communicated by adopting a rigid connection manner. Through improving sealed structures among various components inside the gas channel assembly and between the gas channel assembly and the sensor assembly, the detection precision of the trace oxygen analyzer on the oxygen concentration is improved.

Description

technical field [0001] The invention relates to the field of analytical instruments, in particular to a trace oxygen analyzer. Background technique [0002] Oxygen analyzer is an essential analytical instrument in the field of gas, and has been widely used in chemical industry, metallurgical industry, environmental monitoring, medical and health, aerospace, electronic industry and other fields. According to different detection ranges, oxygen analyzers can be divided into percentage oxygen analyzers and trace oxygen analyzers. Among them, the percentage oxygen analyzer can be divided into electrochemical principle, zirconia principle and paramagnetic principle according to the principle. According to the principle, the trace oxygen analyzer can be divided into the principle of electrochemical formula and the principle of zirconia. At present, most of the percentage oxygen analysis instruments are portable instruments, which have the advantages of small size, easy operation,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/416
Inventor 黄凯梁袁江朱仲文李曹东
Owner CHONGQING CHUANYI ANALYZER CO LTD