US 11,898,885 B2
Sensor assembly for a rotary sensor
James C. Falk, Charlotte, NC (US); and Keith D. Larson, Charlotte, NC (US)
Assigned to HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed by HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed on Mar. 17, 2021, as Appl. No. 17/204,314.
Claims priority of application No. 202011012802 (IN), filed on Mar. 24, 2020.
Prior Publication US 2021/0302203 A1, Sep. 30, 2021
Int. Cl. G01D 5/16 (2006.01); G01B 7/30 (2006.01)
CPC G01D 5/16 (2013.01) [G01B 7/30 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A sensor assembly for a rotary sensor, comprising:
a sensor housing configured to be secured relative to a mounting environment, the sensor housing defining a cavity;
a sensor shield disposed within the cavity, wherein the sensor shield defines a slot along a length of the sensor shield, wherein the sensor shield is composed of a highly permeable material; and
a sensor disposed within the cavity, wherein at least a portion of the sensor is positioned within the slot of the sensor shield, wherein the sensor comprises a printed circuit board having an arc shape, wherein the printed circuit board comprises a plurality of sensor elements disposed along an inner circumference of the printed circuit board in a radially outward direction, wherein each sensor element of the plurality of sensor elements is positioned at an equal distance from each other;
wherein at least a portion of the sensor shield is disposed between the plurality of sensor elements and the mounting environment such that the sensor shield is configured to act as a polepiece that enables a uniform field to be provided to the sensor by isolating the plurality of sensor elements from a magnetic field defined by a ferrous object within the mounting environment.