The difference between the Coating Thickness Gauge and other thickness gauges
Coating thickness gauges are mainly used in the surface treatment industry to measure the coating thickness on metal or plastic surfaces. There are many names for coating thickness gauges. Commonly used ones include coating thickness gauge, coating thickness gauge, anti-corrosion layer thickness gauge, portable thickness gauge, dry film thickness gauge, magnetic thickness gauge, eddy current thickness gauge, Film thickness meter, coating film thickness meter, metal film thickness meter, paint coating thickness meter, paint thickness meter, powder coating thickness meter, film thickness tester, film thickness measuring instrument, electroplating thickness meter, film thickness measurement Thickness gauges, paint film thickness gauges, etc. are actually the same instrument.
The electrolytic thickness gauge is specially used to measure thin coatings and special substrates or coatings, such as nickel plating on iron where the coating is only a few microns. But the surface coating must be destroyed.
Ultrasonic coating thickness gauge is a thickness gauge that measures the thickness of coatings on non-metallic surfaces such as wood, plastic, and glass. The price is quite expensive. Therefore, some measurements during the spraying process can be replaced by an ordinary coating thickness gauge. The specific measurement method is as follows: Put the ordinary coating thickness gauge diaphragm (calibration sheet) together with the product that has not been surface treated, and then After spraying, use an instrument to measure the thickness of the diaphragm to know the thickness of the product coating.
The ultrasonic thickness gauge measures thickness based on the principle of ultrasonic pulse reflection. When the ultrasonic pulse emitted by the probe passes through the object to be measured and reaches the material interface, the pulse is reflected back to the probe and the measured time is determined by measuring the propagation time of the ultrasonic wave in the material. The thickness of the material. It is mainly used to measure the thickness of the entire steel plate, iron plate, glass plate and other plates, and has nothing to do with the coating. Therefore, when purchasing and using, you must distinguish whether you need an ultrasonic coating thickness gauge or an ultrasonic thickness gauge.
The X-ray thickness gauge uses the characteristics related to the change of X-ray intensity and the thickness of the material when X-rays penetrate the material being measured to measure the thickness of the material. It is a non-contact dynamic measuring instrument. It takes PLC and industrial computer as the core, collects calculation data and outputs the target deviation value to the rolling mill thickness control system, and has reached the required rolling thickness.
Non-destructive coating thickness gauges are divided into two types: magnetic and eddy current. There are also magnetic and eddy current two-in-one dual-use types. It is often used to measure the thickness of the surface coating where the substrate is metal, so it is also called a coating thickness gauge. The magnetic thickness gauge is designed to measure the thickness of coatings on magnetic metals such as steel (coatings are except for magnetic metals such as steel and nickel). It cannot measure the coatings on non-magnetic copper, aluminum, tin, etc. The eddy current thickness gauge is designed to measure the thickness of the insulation layer on non-magnetic metals, such as copper and aluminum (the coating must be non-conductive material).
