Conceptual characteristics and differences of coating thickness gauges
Concept of coating thickness gauge
The coating thickness gauge can non-destructive measure the thickness of non-magnetic coatings on magnetic metal substrates (such as steel, iron, alloys, and hard magnetic steel) (such as aluminum, chromium, copper, enamel, rubber, paint, etc.) and the thickness of non-conductive coatings on non-magnetic metal substrates (such as copper, aluminum, zinc, tin, etc.) (such as enamel, rubber, paint, plastic, etc.). The coating thickness gauge has the characteristics of small measurement error, high reliability, good stability, and easy operation. It is an essential testing instrument for controlling and ensuring product quality, and is widely used in manufacturing, metal processing, chemical industry, commercial inspection and other testing fields.
Instrument features
*Adopting a dual function built-in probe, it automatically identifies iron-based or non iron-based materials and selects the corresponding measurement method for measurement.
*The dual display screen structure, designed in accordance with ergonomics, can read measurement data at any measurement position.
*Adopting a mobile menu style function selection method, the operation is very simple.
*The upper and lower limits can be set, and when the measurement result exceeds or meets the upper and lower limit values, the instrument will emit a corresponding sound or flashing light prompt.
*Extremely stable, usually able to be used for a long time without calibration.
The difference of FN in coating thickness gauge
F represents ferrous ferromagnetic substrate. The F-type coating thickness gauge uses the principle of electromagnetic induction to measure non ferromagnetic coatings and coatings on ferromagnetic metal substrates such as steel and iron, such as paint, powder, plastic, rubber, synthetic materials, phosphating layer, chromium, zinc, lead, aluminum, tin, cadmium, porcelain, enamel, oxide layer, etc.
N represents Non ferrous non-ferromagnetic matrix, and the N-type coating thickness gauge adopts the principle of eddy current; To measure enamel, rubber, paint, plastic layers, etc. on substrates such as copper, aluminum, zinc, tin, etc. using eddy current sensors.
The FN type coating thickness gauge adopts both electromagnetic induction principle and eddy current principle, and is a two in one type coating thickness gauge of F and N types. Please refer to the above for the purpose. A magnetic thickness gauge with an F probe;
