Mechanical/electrical transducer insensitive to bending and transverse forces

摘要

The invention relates to a mechanical/electrical transducer with a bridge circuit having strain-sensitive resistors, the strain-sensitive resistors being arranged immediately on a component having an approximately rectangular cross section and on which torsional forces act directly without intermediate support, as a result of which, when the component is subjected to torsion, it is possible to tap at the bridge circuit an electric signal corresponding to the strain of the thick-film resistors. ;In a mechanical/electrical transducer in which, in the case of varying bending load, the generation of a bridge signal as a consequence of bending moments is reliably prevented, the strain-sensitive resistors (R1, R2, R3, R4) are arranged on the component (1) like a circle, one resistor (R1, R3) each of the first bridge arm being arranged diagonally relative to a resistor (R4, R2) of the second bridge arm, respectively in a position in which the change in resistance assumes equal values under a general bending load, as a result of which the output signal (U_Q) that can be tapped at the bridge circuit depends only on the torsional load.