MAGNETO-ELASTIC FORCE SENSOR AND METHOD FOR COMPENSATING DISTANCE DEPENDENCY IN A MEASUREMENT SIGNAL OF SUCH A SENSOR

摘要

The magneto-elastic force sensor has a sensor head (1) which is provided with an emitting coil (9) for generating a magnetic field. A magnetic field sensor (11) is provided for measuring a magnetic flux caused by the magnetic field of the emitting coil in a measured object (13). The sensor head is provided with a detecting portion (14) for detecting an electrical value that reflects the inductivity of the emitting coil. Independent claims are included for the following: (1) distance compensating method in measurement signal of magneto-elastic force sensor; and (2) method for determining torsion or torque.