Rod-shaped force transducer with improved deformation behavior

A force transducer for measuring compression and/or tension forces, with:

• a rod-shaped deformation body, that comprises at least a front side, a rear side, a left side, a right side, an upper end face and a lower end face;
• and
• at least four strain transducers that are applied on the deformation body and are configured and set-up for measuring a longitudinal strain and a transverse strain of the deformation body, wherein:
• a front elongate recess is provided on the front side in the area of an intersection point between a central longitudinal axis and a central transverse axis of the deformation body, and lying opposite thereto a rear elongate recess is provided on the rear side,
• at least a left upper indentation is provided above the central transverse axis and a left lower indentation is provided below the central transverse axis on the left side, and respectively lying opposite these indentations at least a right upper indentation and a right lower indentation are provided on the right side,
• a material cross-section of the deformation body in a center plane extending orthogonally to the central longitudinal axis and including the central transverse axis comprises a material cross-section surface area,
• a left first partial region of the material cross-section extends from a left first line, which extends through a rim of the front elongate recess toward the left side and a rim of the rear elongate recess toward the left side, out to an edge of the material cross-section toward the left side, and comprises a first partial region surface area,
• a right second partial region of the material cross-section extends from a right second line, which extends through a rim of the front elongate recess toward the right side and a rim of the rear elongate recess toward the right side, out to an edge of the material cross-section toward the right side, and comprises a second partial region surface area, and
• a ratio between the material cross-section surface area and a sum of the first partial region surface area and the second partial region surface area is not smaller than 1.56 and not larger than 2.15.