Linear variable differential transformers for high precision position measurements
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United States of America Patent
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Aug 28, 2007
Grant Date -
Aug 24, 2006
app pub date -
Apr 10, 2006
filing date -
Nov 30, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A linear variable differential transformer (LVDT) is disclosed that has first and second coil is formed of materials that minimize the Barkhausen noise, and hence which produces outputs that are substantially independent of any Barkhausen noise. In an embodiment, the Barkhausen independence is formed by making the coils of non-ferromagnetic materials. For example, other materials could be used that have a material as the core that does not include grain boundaries or does not include metastable magnetic.
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