Measuring method for a permanent magnet alloy magnetic

When the test and inspection of the permanent magnets and magnetic alloys , magnetic measurements are the most important. This measurement is no more than one measurement of the magnetic properties of the magnetic ( magnetic flux , magnetic moment , the magnetic potential zinc, etc. ) of the measurement object itself or a permanent magnet material ( for hysteresis ; FIG Determination of residual K and coercive force should be so ) .
In addition , the magnet can be made ​​simply workshop measurement ( measuring the separation force , as should the like) , but also for a particular measurement ( measuring magnetic field strength , magnetic鈇measured temperature coefficient ) . Now we study several practical on the most important and common magnetic measurements . With quantometer O flux and flux was measured . Quantometer then surrounded measured at the discretion of the flux loop ( coil ) .
When the magnetic field changes the loop winding ( coil ) inside , will have - given force . F in time, that changes in the flux of time , power sun through the loop ; charge Q can be calculated as the ratio .
Fluxmeter impact measurement is based on using the current flowing through the meter coil current shelves of this principle to construct .
Having a large moment of inertia of the movable land bobbin is suspended in the curled elastic filaments do not actually online . On grants and soft grabbing pole magnet flux meter bobbin gap between the cylinder within the system, when electricity flows through the coil former hard work , due to the interaction of the current with the magnetic field and electric power transferred . Fluxmeter bobbin to stay for a longer time in this state . Light shelves attached to a pointer , that is, along with Maxwell unit scale indexing plate and rotate pointer.
Flux is calculated using the same formula quantometer to carry out, but on behalf of these formulas Fluxmeter With Fluxmeter flux measurement techniques , although slightly higher than quantometer insensitive , then proceeded quickly and reliably . On the other hand , the impact of the current account of the roadmap , though also to ensure greater measurement accuracy, but Yi bulky , takes a long time and there are other discretionary measure many shortcomings . Further study the impact of the device when drawing after magnetization curves and hysteresis in the formulation are lines.permanent magnets for sale at magnetndfeb.com