The proper coating thickness gauge for versatile applications

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Principle and maintenance method for coating thickness gauge

Principle and maintenance method for coating thickness gauge


Principle of coating thickness gauge:

The thickness gauge uses electromagnetic induction to measure the thickness of the coating. The probe on the surface of the component produces a closed magnetic circuit. As the distance between the probe and the ferromagnetic material changes, the magnetic circuit will change to varying degrees, causing changes in the magnetoresistance and the inductance of the probe coil. This principle can be used to accurately measure the distance between the probe and the ferromagnetic material, that is, the coating thickness.

The coating thickness gauge adopts a dual-function built-in probe, which automatically recognizes iron-based or non-ferrous-based materials, and selects the corresponding measurement method for accurate measurement. The ergonomically designed dual display structure can be read at any measurement position The measurement data adopts the menu-style function selection method of the mobile phone, and the operation is very simple. The coating thickness gauge can set upper and lower limits. When the measurement result exceeds or meets the upper and lower limits, the instrument will emit a corresponding sound or flashing light to indicate its high stability, and it can usually be used for a long time without calibration.

coating thickness gauges

Maintenance and maintenance of coating thickness gauge:

When measuring on a rough surface, the reading will be too large, and you need to take multiple measurements to get the average value. When measuring a cylinder or round edge, you must use the V-shaped mouth of the measuring nozzle of the instrument to measure high carbon content or after heat treatment. When the hard steel is coated, the measured value will be too large. When the substrate thickness is less than the critical thickness, the measured value will be too large. The convex and concave measurement will affect the measured value. The measured value is too large for convex and concave. Too small

Maintenance and maintenance: Keep the thickness gauge away from permanent magnets or electromagnets, away from strong magnetic fields and strong electric fields; do not violently bump the thickness gauge after use. The thumbwheel must be turned counterclockwise to a position above one-half of the scale after use. Placed in a storage point;