MAGNETIC FIELD SENSOR Russian patent published in 1996 - IPC

FIELD: measurement technology. SUBSTANCE: sensor has housing 1, two-component magnetic field sensor made on ring magnetic circuit with air gaps 3 which is assembled from four circular sector plates 4 with distributed excitation winding 6 and signal windings 7 located in pairs opposite each other symmetrically to plates of magnetic circuit and connected in series and in opposition, one- component magnetic field sensor 14 mounted in center of symmetry orthogonally relative to measuring axes of two-component magnetic field sensor whose magnetic circuit is made of two circular sector plates 15 with sickle-shaped symmetrical profiles of ends mounted in framework 16 on which sections of excitation winding are wound and are connected in series according to magnetic motive forces and with excitation winding of two-component sensor and sections of signal winding connected in series and in opposition by magnetic motive forces. Plane of magnetic circuit of one- component sensor; magnetic permeabilities of form of magnetic circuits of sensors are equal in field; distance between centers of plates of magnetic circuit of one-component sensor is equal to 0.9 - 1.1 of average radius of plates. EFFECT: enhanced accuracy and extended functional capabilities of device. 5 dwg