Oxygen & Binary Gas Analyzers
Measurement and Analysis
A range of quality process analyzers from experts in control instrumentation
Precise measurement of oxygen and other gases is critical for processes in many industries, ranging from the purity of industrial gases and protecting against leaks in glove boxes to monitoring flue gas for optimum combustion efficiency. The requirements of various applications are very different, therefore Michell offers a range of analyzers to ensure that you can always select the best technology for your application.
Why Choose Michell?
With an oxygen analyzer from Michell Instruments you get:
A range of sensor technologies unique to each instrument, maximizing measurement ranges and applications.
Oxygen is a paramagnetic gas, which means that it is attracted to a magnetic field. It is this property that can be exploited to help determine the level of oxygen in many background gases. The magnetic susceptibility of oxygen decreases inversely with its temperature. Michell’s thermo-paramagnetic analyzer uses a temperature-controlled measuring chamber to create a flow of the process gas (known as a ‘magnetic wind’) between a pair of thermistors. This ‘magnetic wind’ alters the equilibrium temperature between the thermistors. The resulting change in the electrical resistance produces a signal that is proportional to the oxygen concentration in the sample gas.
Advantages of Thermo-Paramagnetic:
Thermal conductivity (TC) is a property of all gases. This can be exploited as each gas has a different TC value and is used to determine the level of one gas in a binary or pseudo-binary mix. Air is a good example of a pseudo binary mix as it has a fixed proportion of oxygen and nitrogen (both with very similar thermal conductivities).
Advantages of Thermal Conductivity:
How to choose between MSRS or MIPS
Below is a short guide to quickly establish which technology to use for your application: