What is the structure and principle of an oxygen analyzer? ? ?
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I would like to ask everyone for advice. . . Thank you!
Industrial oxygen analyzers are generally divided into three types of analysis principles: 1. Electrochemical analyzers are based on electrochemical principles. An electrochemical sensor consists of an anode, a cathode, and a special electrochemical cell. 2. A magnetooxidimetric analyzer is a physical-type gas analyzer that measures the oxygen content in a mixture, based on the physical phenomenon that the magnetic susceptibility of oxygen is much greater than that of other gases. 3. Laser oxygen analyzer: Basic principles of semiconductor laser spectroscopic absorption technology.
In the design, the oxygen analyzer is supposed to be equipped with a nitrogen cylinder – what is it for?
In electrochemical analysis, the key component is the oxygen cell, which needs to be replaced frequently if not used properly； Magnetooxidimetric analyzers are mostly made of zirconia, and there are quite a number of manufacturers for this!
There are generally three measurement methods for industrial oxygen analyzers: the magnetic mechanical type, which utilizes the paramagnetic effect of oxygen; in this type, a dumbbell-shaped element with a mirror in the middle is placed within a pair of unbalanced magnetic fields, with hollow spaces on either side or N2 filled inside. Different induced electromotive forces are generated through the deflection of the dumbbells and lens reflection to determine the oxygen content, usually for routine measurements. Zirconia: available in self-heating and non-heating types, requiring a temperature of over 720 degrees. Made using the properties of solid electrolytes. Electrochemistry: It is created through chemical reactions involving a filled solution; electrodes and solution are required, and it has a certain lifespan. General trace measurement. Analytical instruments require zero and range calibration, with N2 generally being used for the zero point.
In our field applications, we make extensive use of magnetic pressure type, electrochemical type, zirconia, laser, and others. Magnetic pressure oxygen meters require high-purity nitrogen, which is used as a reference gas. Use continuously. Electrochemical oxygen meters do not require a reference gas; if a gas cylinder is used, it is for calibrating the zero point.
Magnetic mechanical oxygen meter, magnetic pressure oxygen meter, laser oxygen meter, zirconia oxygen meter, electrochemical oxygen meter