Abstract: Electronic identification device includes a circuitry (10) for generating and emitting an electromagnetic field and a plurality of transponder units (11). Each of the transponder unit includes a storing circuitry (12) for storing identification data, and a transmitting circuitry (13) for transmitting a signal including the identification data when the transponder unit (11) has been exposed to the electromagnetic field. The electronic identification device further includes a receiving circuitry (14) for receiving the signal and for decoding the identification data. At least one element (15) of a material, having the magnetic or electrical properties being influenced by external magnetic fields, is disposed on or in the absolute vicinity of the transponder unit (11), and a magnetic field generating circuitry (16) for generating a magnetic field is provided at an interrogation zone (17) to activate any element (15) appearing in the interrogation zone (17).

Abstract: Method for position measurement, whereby a magnetic field is generated in a measuring volume comprising one or several elongated elements of amorphous material, the magnetic properties of which being influenced by the magnetic field, is arranged in the measuring volume. The measuring volume is composed of several sub-volumes, and the extension of the sub-volumes in the desired measuring direction is chosen in such a way that the extension corresponds to the desired measuring resolution in the measuring directions. The change in magnetic or mechanical properties of the element caused by the magnetic flux intensity in the respective sub-volume along the longitudinal direction of the element is detected, the change being a measure of the position of the element.

Abstract: The invention relates to a method and a device for causing a first body (3, 7, 14), which is held in engagement with a second body (1, 8, 12), to move along said body, said second body comprising material which may be caused to undergo a dimensional change across the intended direction of movement due to magnetostrictive, electrostrictive or piezoelectrical action. Said first body (3, 7, 14) is continuously held in cooperation through form engagement with a zone (2, 10A, 10B, 15) on said second body, which is caused to undergo a dimensional change across the intended direction of movement under the influence of a magnetic field or an electrical field said zone (2, 10A, 10B, 15) by displacement of said magnetic or electric field in the intended direction of movement being displaced in said direction during simultaneous driving action on said first body (3, 7, 14) through form engagement for coupled movement together with said zone (2, 10A, 10B, 15).

Abstract: The invention relates to a device for non-contact measuring of stresses including bending stresses in a bar-shaped body (1), e.g. a cylindrical bar, shaft or the like. In at least one transverse zone (2, 3) the bar (1) is provided with a number of thin strips (4) of an amorphous magnetoelastic material, distributed along the circumference of the zone, said strips (4) being affixed to the circumferential surface of the zone and extending at a pitch angle therealong, a preferably at a pitch angle of 45.degree.. Means (5) are provided for generating a magnetic field over said zone (2, 3) and a pick up coil (6-13) encircling the bar is provided for each zone (2, 3), said pick up coil being connected to a measuring unit (16, 16A) for indicating signals generated in the coil.