What do the letters F, N, and FN on the coating thickness gauge stand for?
The coating thickness gauge can measure the thickness of non-magnetic coatings without causing any damage (such as aluminum, chromium, copper, enamel, rubber, paint, etc.) The thickness of a non-conductive covering on a metal substrate, such as enamel, rubber, paint, or plastic (eg, copper, aluminum, zinc, tin, etc.). So what do the letters F, N, and FN in the coating thickness gauge stand for? Your introduction from Shenzhen Yuanhengtong Technology Co., Ltd. will be in-depth:
For a ferrous ferromagnetic substrate, use the letter F. To measure non-ferromagnetic coatings and coatings on ferromagnetic metal substrates like steel and iron, such as paint, powder, plastic, rubber, synthetic materials, phosphating layer, chromium, zinc, lead, aluminum, tin, cadmium, porcelain, enamel, oxide layer, etc., the F-type coating thickness gauge employs the electromagnetic induction principle.
Non-ferrous non-ferrous substrate is referred to as N. The eddy current principle is used by the N-type coating thickness gauge to measure layers of plastic, rubber, paint, and enamel on substrates made of copper, aluminum, zinc, and tin.
The electromagnetic induction and eddy current principles are both used by the FN type coating thickness gauge. It is a dual-purpose F type and N type coating thickness gauge.
