PCE Instruments LM-FL250-HM2 Magnetic field tester with data logger

The compact Fluxmeter List-Magnetic FLUX-CHECK 250 is a new hand-held measurement device for determining the magnetic flux Phi of a magnet system or single magnets. This innovative device offers a precise possibility for ferromagnetic material testing and is Ideal for material analysis and material testing in various applications.

For the test of a permanent magnet or a magnetic system, it is crucial how the magnetic quality and the level of magnetization of the magnet is. The measurement of the magnetic field strength with a magnetic field meter is only possible on a point basis and does not take into account the volume of the magnet. A fluxmeter with a helmet coil takes over this task, which enables a precise and volumetric measurement of the entire magnetic field.

In combination with the list magnet Helmholtz momentum coil HM-1, the magnetic flux of permanent magnets can be determined very precisely, since the entire volume of the magnet is measured independent of position. The effect of the magnet on the coil in the form of an electrical voltage is determined and converted into the flux value (or flux). In addition to the Helmholtz momentum coil HM-1 all kinds of coils or coil probes can be connected to the device and WAS enables a high flexibility in ferromagnetic material testing and material analysis.

The acquisition of the recorded pulse curve of the flow measurement results in an area that determines the flow value as integral. This surface is prepared as a graphical representation on the LCD touch panel with a resolution of 320x480 pixels, and the correct flow value is calculated from this. Technically speaking, the fluxmeter FLUX-CHECK 250 is an electronic analogue voltage integrator.

A drift that many fluxmeters show after switching on and which leads to a longer waiting time until the first measurement or which has to be compensated over and over again during the course of the measuring series does not occur in FLUX-CHECK 250. Instead, a trigger value is specified from which the measurement begins, whereby the previous drift value is automatically taken as value. Immediately after switching on the device is ready for measurement, WAS enables a fast and reliable material testing and material analysis, without any time loss due to constant drift compensation.

In addition to the magnetic flux Phi, the flux meter can also contain additional information about the coil and the measured magnets. This data can be used to calculate additional statements that support material analysis and precise material testing of permanent magnets and other magnetic systems.
The number of windings of the coil (n) - the "real flow" is calculated from this
The coil constant of the Helmholtz coil, which is used to calculate the "magnetic moment"
The volume of the magnet, the flux density B is calculated from this

The device supports you with a flexible measured value storage, a combined digital and analogue display as well as the measurement of peak values. Thanks to the wireless Bluetooth interface data can be transferred to a Windows-PC as well as to apps for Android and iOS. The device can be continuously connected to an external power source via the USB interface.

A SCPI interface is implemented on the fluxmeter, with which the device can perform measurements and deliver measurement values remotely in line mode. The connection is made via USB, which ensures power supply and continuous operation.

This text is machine translated.