Inductive Position Sensor
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United States of America Patent
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Issued Date -
Jun 9, 2011
app pub date -
Dec 6, 2010
filing date -
Dec 7, 2009
priority date (Note) -
Abandoned
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Abstract
An inductive position sensor uses three inductors. First and second inductors are separated by a fixed distance with the first inductor's axial core and second inductor's axial core maintained parallel to one another. A third inductor is disposed between the first and second inductors with the third inductor's axial core being maintained parallel to those of the first and second inductors. The combination of the first and second inductors are configured for relative movement with the third inductor's axial core remaining parallel to those of the first and second inductors as distance changes from the third inductor to each of the first inductor and second inductor. In operation, a source supplies an oscillating current to at least one of the three inductors, while another device measures voltage induced in at least one of the three inductors not supplied with the oscillating current. The voltage so-induced is indicative of an amount of the relative movement between the third inductor and the combination of the first and second inductors.
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Patent Owner | Address | |
---|---|---|
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION | 300 W STREET S W WASHINGTON DC 20546 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Simmons, Stephen M | Melbourne, US | 7 | 110 |
Youngquist, Robert C | Cocoa, US | 27 | 417 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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