FIELD: physics.
SUBSTANCE: device has a ferromagnetic ring made from the investigated ferromagnetic material, an oscillating circuit coil and a Hall sensor. The ring is placed between poles of an electromagnet connected to a controlled direct current source. The coil is made on the ferromagnetic ring and is connected to a high-frequency generator. The Hall sensor is placed in the magnetic gap of the electromagnet. The high-frequency generator is connected to a frequency metre and the Hall sensor is connected to the input of a magnetic field strength metre.
EFFECT: high accuracy of measuring the magnetisation curve of a ferromagnetic material in a wide range of magnetic field strength variation.
1 dwg
