Method and apparatus for monitoring armature position in direct-current solenoids

Patent · Tue Dec 10 00:00:00 EST 1996

OSTI ID:870734

Moyers, John C ^[1]; Haynes, Howard D ^[2]

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1. Oak Ridge, TN
2. Knoxville, TN

A method for determining the position of an armature of a dc-powered solenoid. Electrical circuitry is provided to introduce a small alternating current flow through the coil. As a result, the impedance and resistance of the solenoid coil can be measured to provide information indicative of the armature's position.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: AC05-84OR21400
• Assignee: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
• Patent Number(s): US 5583434
• Application Number: 08/093,846
• OSTI ID: 870734
• Country of Publication: United States
• Language: English

Related Subjects

method
apparatus
monitoring
armature
position
direct-current
solenoids
determining
dc-powered
solenoid
electrical
circuitry
provided
introduce
alternating
current
flow
coil
result
impedance
resistance
measured
provide
information
indicative
electrical circuitry
alternating current
current flow
electrical circuit
provide information
solenoid coil
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