A strain-causing body and a force sensor equipped with the strain-causing body

摘要

A strain body according to the embodiment comprises a central portion (161), an outer peripheral portion (162) surrounding the central portion, connecting portions (163) connecting the central portion and the outer peripheral portion, first and second strain sensors (S1 to S32) provided on main surfaces of the connecting portions, reference resistors (RS4 to RS30) provided on a main surface of the central portion, and constructing a bridge circuit (BF2, BF4, BF6, BF8) with the first strain sensors, and a full bridge circuit (BF1, BF3, BF5, BF7) which is provided on the main surfaces of the connecting portions and in which a pair of the serially connected second strain sensors are connected in parallel.