System and method for cancelling the effects of stray magnetic fields from the output of a variable reluctance sensor

Patent · Tue Nov 19 00:00:00 EST 2002

OSTI ID:874884

Chen, Chingchi ^[1]; Degner, Michael W ^[2]

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1. Ann Arbor, MI
2. Farmington Hills, MI

A sensor system for sensing a rotation of a sensing wheel is disclosed. The sensor system has a sensing coil in juxtaposition with the sensing wheel. Moreover, the sensing coil has a sensing coil output signal indicative of the rotational speed of the sensing wheel. Further, a cancellation coil is located remotely from the sensing coil and connected in series therewith. Additionally, the cancellation coil has a cancellation coil output signal indicative of an environmental disturbance which is effecting the sensing coil output signal. The cancellation coil output signal operates to cancel the effects of the environmental disturbance on the sensing coil output signal.

• Research Organization: Midwest Research Institute, Kansas City, MO (United States)
• DOE Contract Number: AC36-83CH10093; ZCB-4-13032-02
• Assignee: Ford Global Technologies, Inc. (Dearborn, MI)
• Patent Number(s): US 6483293
• Application Number: 09/606,863
• OSTI ID: 874884
• Country of Publication: United States
• Language: English

Related Subjects

method
cancelling
effects
stray
magnetic
fields
output
variable
reluctance
sensor
sensing
rotation
wheel
disclosed
coil
juxtaposition
moreover
signal
indicative
rotational
speed
cancellation
located
remotely
connected
series
additionally
environmental
disturbance
effecting
operates
cancel
magnetic field
output signal
rotational speed
sensing coil
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