The DX-2012AM permanent magnet magnetic declination measuring instrument is composed of a three-dimensional Helmholtz coil connected to an independent three-component fluxmeter, which constitutes the hardware test part. The three-component test data is converted by a computer to form a complete set of permanent magnets Material quality testing system.
Put the magnet on the sample table, test the magnetic flux component by the pulling method, and obtain the magnetic moment and the deviation angle of the magnetic field in the direction of the main axis by calculation. It can display the total magnetic moment M, spindle magnetic declination α, Øx, Øy, Øz, and the coil constant of the corresponding test coil.
The hardware composition is high-speed 32 digitals M4 single-chip system, 3 sets of built-in fluxmeter, 7 inches 800*480 resolution LCD.
A single Helmholtz coil can be used to measure the magnetic moment M produced by the permanent magnet in the magnetization direction. The magnetic moment M can be obtained through the relational expression M=KH×Φ, in which KH is the Helmholtz coil constant, while the Φ is the magnetic flux of the magnetic induction to the coil. As for the quality inspection of the permanent material samples after being magnetized, the Helmholtz coil is adopted and it is getting quite popular and universal. It is extremely important for the designed one-dimensional and three-dimensional Helmholtz coil to participate in the mutual parameter transmission with its international peers.