This instrument is characterized by a simple, durable, painted houses without power gauge function, before the measurement without calibration, the price is low, it is suitable for the workshop to do on-site quality control. Magnetic measuring principle using magnetic induction principle, the use of the probe from non-ferromagnetic coating layer through the ferromagnetic substrate Provided the size of the magnetic flux to determine coating thickness. You can also determine the size of the corresponding magnetoresistance, to represent its coating thickness. The thicker the coating thickness wholesale house painted, then the greater reluctance flux is smaller. Thickness using magnetic induction principle, in principle, there can be a non-magnetic substrate magnetic coating thickness. General requirements for the substrate permeability of more than 500. If the coating layer material is magnetic, the requirements and the difference between the permeability of the substrate is large enough (such as nickel-plated steel). When the soft-core coil probes placed around the test specimen thickness specifications when painted houses, the instrument automatically output the test current or test signal. Early products using pointer meter, measure the size of the induced electromotive force, the instrument indicates the signal is amplified later coating thickness. In recent years, the introduction of frequency stabilization circuit design, lock, temperature compensation and other places of new technologies, the use of reluctance to modulate the measurement signal. Also uses patented design of integrated circuits, the introduction of the microcomputer, the measurement accuracy and reproducibility have increased significantly (almost an order of magnitude). Modern magnetic induction Thickness Gauge painted houses, resolution of magnetic induction eddy current measurement principle thickness _ _ magnetic force measurement principle and the principle of eddy current thickness gauge _ to 0.1um, allowable error of 1% , range up to 10mm. Magnetic principle can be applied to accurately measure the thickness of steel surface of the paint layer, ceramic, enamel protective layer, plastics, rubber coating layer comprising a variety of non-ferrous metals, including nickel-chromium plating, and chemical variety of anti-corrosion coatings oil unemployed layer. Coating thickness can be destructive measurement of magnetic metal substrate (such as steel, iron, alloy and rigid magnetism steel) on a non-magnetic coating thickness (such as aluminum, chromium, copper, enamel, rubber, paint, etc.) and non-magnetic metal substrate (such as copper, aluminum, zinc, tin, etc.) on a non-conductive coating layer thickness (such as: enamel, rubber, paint, plastics, etc.). Coating thickness gauge with measurement error is small, high reliability, good stability, simple operation, is essential for product quality control and assurance testing equipment, widely used in manufacturing, metal processing industry, chemical industry, inspection and testing fields. Ferrous / Non Ferrous Coating Thickness Gauge with magnetic sensors measure steel, iron and other ferromagnetic metal matrix on the non-ferromagnetic coatings, coatings. This information is provided by: Nanchang Xing Feng Instrument Co., Ltd. (http://www.tianyiyuanyiqi.com) provides, we are Commercial Union membership, the integrity of the whole network certification vendor. Feel free to contact us, contact: Zhengjing