Position-determining device for determining the angular position of a rotatable body has a sensor unit sensitive to magnetic fields and exposed to a homogenous magnetic field

摘要

Made up from a single twisted conductor, a sensor unit (1) fits with a spiral, twisted shape around the axis (A) of a rotatable body like a crankshaft and on the surface of the rotatable body. It also consists of a row of discrete Hall elements (2) that are twisted in relation to each other at a constant angular rate (beta ).