Measurements

The FOERSTER measuring instruments MAGNETOSCOP, MAGNETOMAT, KOERZIMAT HCJKOERZIMAT MS and 3-AXIS-MAGNETOMETER are used for precision testing of the magnetic properties of metals and therefore can also be applied in quality control.

Please find below an overview of and additional information on the magnetic measuring values that can be determined with our units.

Coercive field strength

Coercive field strength HCJ is the intensity of an applied magnetic field, which is required to reduce the magnetization of ferromagnetic material completely, so that the magnetic polarization J is zero. KOERZIMAT can determine coercive field strength HCJ of material and manufactured components almost geometry independent in an open magnetic circuit in accordance with IEC 60404-7. It is not necessary to manufacture test specimen of specific size or shape.

Magnetic dipole moment

The magnetic dipole moment is a measure of the strength of a magnetic dipole. KOERZIMAT can determine the magnetic saturation dipole moment jS almost geometry independent in accordance with IEC 60404-14. It is not necessary to manufacture test specimen of specific size or shape.

Permeability

Magnetic permeability µ is the degree of magnetization of material in response to a magnetic field. It is the ratio of magnetic flux density B and magnetic flux H. The physical constant µ0 is the magnetic permeability in vacuum. Relative permeability µr is the ration of µ and µ0. MAGNETOSCOP and MAGNETOMAT with permeability probe will determine relative permeability of material and manufactured components in accordance with IEC 60404-15, ASTM A342M and VG 95578. It is not necessary to produce test specimen of specific size or shape.

Saturation magnetization

Saturation magnetization is the maximum possible magnetization of ferromagnetic material, characterized by parallel orientation of all magnetic moments inside the material. KOERZIMAT can determine the magnetic saturation dipole moment jS and the derived weight specific saturation magnetization σS (4πσ) of material and manufactured components, almost geometry independent using the withdrawal method in accordance with IEC 60404-14. It is not necessary to manufacture test specimen of specific size or shape.

Magnetische Flussdichte

Die Magnetische Flussdichte B, ein Maß für die Stärke eines Magnetfeldes, ist die Flächendichte des magnetischen Flusses der senkrecht durch ein bestimmtes Flächenelement hindurchtritt. B ist eine gerichtete Größe, ein Vektor. Mittels Förstersonden (Fluxgate) ist eine Bestimmung von Betrag und Richtung möglich. Mit MAGNETOSCOP und MAGNETOMAT Magnetometer und den dazu passenden Mess-Sonden kann die Magnetische Flussdichte in 1 bis 3 Raumachsen bestimmt werden. Mittels einer Differenzsonde kann der Feld-Gradient in einer Richtung ermittelt werden.