Coating thickness gauge measurement principles

Linshang Technology's coating thickness gauge can automatically switch the measurement substrate, and can measure the coating thickness on various metal substrates such as magnetic and non-magnetic. The measurement of the instrument adopts the two principles of Hall effect and eddy current.
Linshang Technology released a variety of coating thickness gauges in 2019, all of which adopted a unified display. Multiple measurements can be achieved with one button. Currently the instrument supports three measurement modes: iron-based measurement, non-ferrous-based measurement and automatic measurement mode. In the automatic measurement mode, the instrument can automatically switch the measurement substrate, and can measure the coating thickness on various metal substrates such as magnetic and non-magnetic.
Linshang Technology Coating Thickness Gauge uses two principles of Hall effect and eddy current. The Hall effect is the generation of a voltage difference (Hall voltage) across an electrical conductor, transverse to the current in the conductor and perpendicular to the current applied to the magnetic field. The Hall coefficient is defined as the ratio of induction. The electric field is the electric field of the product of the current density and the applied magnetic field. It is a characteristic of the material from which the conductor is made, because its value depends on the type, number and nature of the charge carriers that make up the current.
Coating thickness gauge detects the coating thickness of the metal surface
Eddy current: Eddy current phenomenon is caused by the intersection of a moving magnetic field and a metal conductor, or by the perpendicular intersection of a moving metal conductor and the magnetic field. In short, it is caused by electromagnetic induction effects. This action produces a current circulating in the conductor. The faster the magnetic field changes, the greater the induced electromotive force and the stronger the eddy current; the eddy current can heat the conductor.
The coating thickness gauge detects the coating thickness on the back of the phone
The instrument using these two measuring principles is different from a single iron-based coating thickness gauge or a non-ferrous coating thickness gauge. Such a coating thickness gauge can test the coating thickness on a variety of substrates.
Of course, the instrument also has an ultra-short 0.5s measure