Measurement head for a magnetoelastic sensor

摘要

A measurement head (1) for a magnetoelastic sensor having a ferrite core (3). The core (3) has a first end (5), on which a field coil (9) which generates a magnetic field is fitted, and at least a second end (7), on which a magnetic field sensor (11, 41) is fitted.

主权项

1. A magnetoelastic sensor comprising:
a measurement head that includes a ferrite core having a first part around which an exciter coil is arranged to generate a magnetic field in the ferrite core, and at least a second part to which a magnetic field sensor is attached, wherein the first part terminates at a first surface, wherein the second part terminates at a second surface, wherein the magnetic field sensor is disposed over the second surface, wherein the exciter coil is arranged to generate a magnetic field with magnetic field lines that pass through the first surface, the second surface, and the magnetic field sensor, and wherein the first surface, the second surface, and the magnetic field sensor are arranged to sense magnetic field flux density variation in a ferromagnetic body arranged opposite and spaced from the first surface, the second surface, and the magnetic field sensor to receive therein the field lines that pass through the first surface, the second surface, and the magnetic field sensor.