Precautions for the use of Mikrotest Thickness Gauges

What should be paid attention to when using the German Mikrotest McCourt Thickness Gauge?

The magnetic Thickness Gauge mainly uses the change of the magnetic field strength of the electromagnetic field on the medium of different thickness to calculate its thickness value. Therefore, any effect on the magnetic field strength

will directly lead to measurement errors. The specific situations are as follows:

1. The measured material itself contains magnetism. Some materials have a residual magnetic field in the material to be tested during processing or certain process requirements. Due to its uneven distribution, the resulting measurement errors are also inconsistent, and the measured values ​​of certain parts on the same workpiece will suddenly become larger and smaller.

2. The structure and shape of the tested materials are different. The distribution of the magnetic field on workpieces with different structures will be different with different shapes. Measurement errors will also occur.

3. Different parts of the same material may also produce different changes in the magnetic field. Such as the edge of the material and the middle area, the distribution of its magnetic field is not the same. Measurement errors will also occur.

4. The properties of the measured materials are different, and the magnetic flux will be different, which is also one of the reasons for the error.

5. The size and thickness of the material are different, which can also lead to measurement errors.

6. The surface of the measured material is not smooth enough, which is also the cause of the error.

Mikrotest McCourt Thickness Gauge The above situation is caused by the principle of electromagnetic errors in actual work. To solve these problems, the corresponding measurement principles should be followed to avoid these errors as much as possible.