Sensor device

Abstract

A sensor device includes a bearing, a shaft (S) including a part supported by the bearing, a holder including a holding part for holding the bearing and a deformable surface extending in an axial direction of the bearing, a plurality of strain sensors for detecting information on a force (F′) acting on the shaft (S), a sensor for detecting information on a position of the shaft (S) in a circumferential direction of the bearing, and an arithmetic circuit, wherein the plurality of strain sensors are attached to the deformable surface, a signal output from the plurality of strain sensors and the sensor are input to the arithmetic circuit, and the arithmetic circuit calculates a magnitude (fr) of a component (Fr) in a radial direction of the bearing and a magnitude (ft) of a component (Ft) in the circumferential direction of the bearing, the components included in information on a force (F) applied to rotate the shaft (S) at a predetermined position of the shaft (S).

Dependencies are inferred from the claim text.