When using the thickness gauge to measure, pay attention to the following points:
(1) When measuring, pay attention to keeping the side head and the test surface vertical.
(2) Keep the pressure stable during measurement, otherwise it will affect the measurement reading.
(3) When conducting the test, it should be noted that the metal magnetism and surface roughness of the standard sheet substrate should be similar to the test piece.
(4) Pay attention to the influence of the curvature of the specimen on the measurement when measuring. Therefore, it is unreliable to measure on the surface of the curved test piece.
(5) Before measuring, pay attention to whether other electrical equipment around will generate a magnetic field. If so, it will interfere with the thickness gauge of the magnetic thickness measurement method.
(6) Pay attention to the critical thickness of the base metal when performing the test. If it is greater than this thickness, the measurement will not be affected by the thickness of the base metal.、
