DEVICE FOR VELOCITY MEASUREMENT Russian patent published in 2000 - IPC

FIELD: car velocity measurement. SUBSTANCE: device has housing, which contains rotor, which is designed as multiple-pole magnetic ring, which is mounted on shaft, and magnetic field detector, which is stationary mounted in housing and spaced from multiple pole magnetic ring and separated from it by sealed wall. One end of rotor shaft is mounted in housing by rest rearing. Another end of rotor shaft rests on drive of gear box velocity detector. Drive and multiple pole magnetic ring are separated by compression spring. This design results in possibility to prevent access of dirt from gear box into magnetic field detector. EFFECT: increased reliability of device operations, decreased radial load on floating shaft of rotor due to rest bearing and compression spring. 5 cl, 2 dwg