Several Typical Issues with Coating Thickness Gauge Probes
The probe of the coating thickness gauge occasionally has some problems in use. When repairing the coating thickness gauge probe, it is often found that the magnetic core is severely worn, and some can be said to be severely damaged. For example, the jewel core of the N1 head is often damaged and ballasted, and the arc core of the F1 head magnetic core is flattened or deformed.
First of all, it is normal for the probe to be worn out during use. However, if the user pays attention to its characteristics, its service life will be extended.
The ubiquitous problem is that during measurement, since the test is usually performed downwards, the user tends to press downwards more forcefully, which will easily cause the failure of the probe core over time. The correct way to use it is to gently press the probe to the surface to be tested when it is one centimeter away from the workpiece to be tested, because the probe has a built-in induction pressure spring in the design, and it only needs to be pressed down gently. On the other hand, during the repeated movement of the probe, it is easy to collide with other objects, and it is easy to cause damage to the probe. Therefore, if the working conditions permit, the probe can be fixed and the workpiece to be measured can be contacted with the probe. Reduce the bumping of the probe.
In another case, when measuring, every time the next point is measured, the measuring head must be lifted and not pulled flat, so as to reduce the wear of the magnetic core.
Finally, the probe must be kept away from strong magnetic fields, so as not to change the natural frequency of the probe and cause it to fail to work. Proper operation and use can prolong the service life of the instrument.
