Instrument sensor device

Abstract

An instrument sensor device for detecting a rotational position of a pointer of an instrument, including a scale plate provided with scale markings, a transparent cover covering the scale plate, and the pointer arranged between the scale plate and the transparent cover and rotatable about a rotation axis within a predetermined angular range, is configured to be mounted on the transparent cover of the instrument and provided with a transparent sheet-like base material; and a plurality of coils formed of a wiring pattern provided on the base material, wherein the plurality of coils includes an excitation coil that generates an alternating magnetic field and a detection coil in which voltage is induced by the alternating magnetic field, and wherein a magnitude of an induced voltage in the detection coil varies according to the rotational position of the pointer.

Dependencies are inferred from the claim text.