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US 5,748,111 AGranted
Apparatus for monitoring the speed and axial position of a rotating member
AssigneeCaterpillar Inc.
InventorKent C. Bates
Life of this patent
Estimating the term…
Abstract
An apparatus for monitoring a rotating member. The apparatus includes a grating pattern having a plurality of wedge shaped pattern markings which are monitored by a sensor for generating a pulse signal. A processor calculates the rotating speed and the axial position of the rotating member as a function of the generated pulse signal.
Claims7
An apparatus for monitoring the speed and position of a rotating member, the apparatus comprising:
- a grating pattern on a peripheral surface portion of the rotating member;
- a sensor positioned for detecting the grating pattern on the rotating member;
- and
- a processor operatively connected to the sensor for calculating the speed and axial position of the rotating member.
1 more element
A method for detecting the speed and axial position of a rotating member comprising the steps of:
- monitoring the rotation and position of a plurality of grating pattern markings on the rotating member;
- detecting the width of the markings and the spacing between the adjacent markings;
- generating a pulse signal relative to the detected width of the markings and the spacing between the adjacent markings;
- and
- calculating the speed and axial position of the rotating member based on the generated pulse signal.
2 more elements
An apparatus for monitoring the speed and position of a rotating member, the apparatus comprising:
- a grating pattern on a peripheral surface portion of the rotating member, the grating pattern includes a plurality of longitudinally extending wedge shaped pattern markings equally spaced around the peripheral surface of the rotating member;
- a sensor positioned for detecting the grating pattern on the rotating member, the sensor detects the width of the pattern markings and the spacing between adjacent pattern markings;
- and
- a processor operatively connected to the sensor for receiving the detected width and spacing of the pattern and calculates a speed and axial position of the rotating member relative to the position of the sensor.
1 more element
Dependencies are inferred from the claim text.