CONTACTLESS TRANSDUCER OF SHAFT ANGULAR POSITION Russian patent published in 2010 - IPC G01B7/30 

FIELD: instrument making.

SUBSTANCE: invention relates to instrument making, particularly, to devices designed to transduce shaft angular position into electric signal. Proposed transducer comprises magneto sensitive element 1 fixed at the centre of circular rotor-magnet 2. The latter is radially magnetised with field waning from the centre to semi-ring edges. Note here that one of semi-rings feature induction vectors directed outward, while another semi-ring has said vector directed inward. Magneto sensitive element sensitive direction is located in the plane of rotor-magnet. Rotor-magnet inner space accommodates two symmetrical identical fixed segments-magnetic cores 3 that form non-magnetic gaps with rotor-magnet and equidistant non-magnetic slot between themselves, directed perpendicular to sensitive direction of magneto sensitive element. All components are axially fitted in cylindrical magnetic shield 4.

EFFECT: reduced nonlinear output characteristic and its stability.

8 dwg