1, to do with the finished product to fill the same standard sample, as far as possible to melt the sample evenly, press after the test.
2, for can not melt the sample, can be polished surface, to prevent the surface too dirty, affecting the measurement results.
3, the standard operation, as far as possible to extend the measurement time, the virtual spectrum and test map must be fully consistent.
4, for uneven samples, you can test a few points, and then take the average.
5, for the sample surface oxidation phenomenon, the need to remove the surface of tungsten oxide, and then to detect, so that the test results will be infinitely close to the real value.