|Method||Hall Effect Meter|
Ferrous Wear Analysis
To determine the overall level of ferromagnetic material present in a given sample.
The technique works by applying a magnetic field and measuring changes in magnetic field in the presence of a sample.
The small size and (relative) low expense of units leads to this being a popular onsite test.
In addition to Iron, Nickel, Cobalt and oxidised Chromium also ferromagnetic.
The result essentially gives us an idea as to the overall quantity of Iron in the sample, irrespective of particle size, avoiding the same limitation of ICP-OES.
The result output is unit-less, so whilst one-shot analysis provides some value, the technique is primarily of use through wear trend analysis.
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