Tubular wheel speed sensor for an anti-skid system

Details Tubular wheel speed sensor for an anti-skid system Tubular wheel speed sensor for an anti-skid system

1976-01-28

1977-06-14

Kunin, Stephen G.

Brakes

Operators

Speed-responsive

310168, 324174, G01P 348

Patent

active

040291804

ABSTRACT:
A rotation indication system having an improved sensing device for determining the velocity of a rotating body is provided. The improved sensing device is tubular in configuration and includes a source of magnetic flux and two pole pieces that define a split magnetic field. The sensing device is mounted in close proximity to a rotor which is connected to the rotating body. The rotor has apertures which interrupt the split magnetic field producing an output signal with a frequency proportional to the velocity of the rotating body. The sensing device is oriented relative to the rotor apertures so that each pole piece is alternatively in register with an aperture to produce the desired output signal. Since the sensing device is tubular in shape, it can be rotated about its axis to obtain the desired orientation with the rotor apertures, thus permitting the use of the sensing device with a wide range of rotor diameters having various aperture spacings.

REFERENCES:
patent: 2941120 (1960-06-01), Harman et al.
patent: 3854556 (1974-12-01), Gee
patent: 3890517 (1975-06-01), Marsh et al.

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