How to choose a coating thickness gauge for curved (non-flat) paint films
When choosing a coating thickness gauge, users should consider the environment of the measured object from the actual situation in addition to choosing different measurement principles, measurement ranges and accuracy based on different substrates. For non-planar objects, most thickness gauges have a specified radius of curvature. In view of the fact that some Beichao users are vague about this, we have made a schematic diagram to illustrate how to choose a coating thickness gauge for measuring concave and convex surfaces such as steel pipes.
The key is to look at the radius of curvature of the object to be measured (I suggest you to Baidu about what is the radius of curvature, so I won’t repeat it here)
For ease of understanding, the northern and southern tides are described in a circular shape, and for objects such as ellipses, the radius of the inscribed circle itself is taken.
The radius requirements of its curved surface are: convex 1.5mm, concave 25mm
That is to say, if it is to measure the outer wall, the small pipe that the instrument can measure is a pipe with a radius of not less than 1.5mm; if it is to measure the inner wall, the radius of the measured object must not be less than 25mm.
Under normal circumstances, the curved surface coating that can be measured by R1 is also applicable to the curved surface coating of R2. On the contrary, the curved surface coating that can be measured by R2 may not be applicable to the smaller R1 measured object coating.
