Sensor device with a sensor element for mechanical stresses and gripper jaws with mechanical

摘要

The object of the invention is a sensor arrangement (11) with a force transducer (12) and a sensor element (13). According to the invention, it is provided that the sensor element with an exciter coil (24) and at least one receiver coil (25) on a core (17) is provided, the core being connected to the force transducer (12) a magnetic circuit (19) is formed. Deformations (27), by changes in the magnetic flux through the receiver coils (25) are detected. According to the invention, furthermore, in the force transducer (12), which an elastic matrix (15), particles (16) of a ferromagnetic material, preferably distributed. Deformations of the force transducer as a result, the effect of advantageously not only the development of stresses in the ferromagnetic filling material, which on the basis of the magnetoelastic effect can be read out, but at the same time a change in the density of the filler material (16) in the matrix material (15), which causes an additional influencing of the measurement result. As a result, advantageous, particularly sensitive sensor arrangements can be generated. Furthermore, the invention also relates to a gripper, in which the sensor arrangement according to the invention is used.