Internal combustion engine rotating position detecting device

摘要

In order to provide rotating position detecting device which is capable of detecting a rotating position with high accuracy even if there exists variation in the air gap, and thereby capable of widening a detectable range of the air gap, a position of the irregularity on the detected rotating body (13) is converted into a rectangular wave-form electric signal, and a rotating position of the detected rotating body (13) is detected based on a building-up signal or a falling signal of the rectangular wave-form, in a rotating position detecting device (10) comprising a magneto-electric converter element (11) for output an electric signal corresponding to a magnetic intensity, a magnet (12) for generating a magnetic field, and a detected rotating body (13) made of a magnetic material having irregularity. <IMAGE>