Electret generator apparatus and method
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United States of America Patent
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Issued Date -
Jan 15, 2004
app pub date -
Jun 4, 2003
filing date -
Jun 7, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An apparatus for power generation. The apparatus has a first substrate comprising a conductive surface region and a second substrate coupled to the first substrate. Preferably, the second substrate comprises an electret material region, which is characterized by a substantially uniform electric field associated with the electret material region. The conductive substrate and the electret substrate are aligned in a significantly parallel fashion with a common area of each region directly facing the other region (A). A distance (d) characterizing a spatial separation is formed between the conductive surface region and the electret material region. A relative voltage potential (V) between the conductive substrate and the electret substrate is associated with the distance (d). In between the conductive substrate and the electret substrate is a material, liquid, gas, or combination with an associated permittivity (.epsilon..sub.0). The relative voltage potential changes based upon a change in the spatial separation between (d), a change in the overlapping area (A), or a change in the permittivity (.epsilon..sub.0) between the conductive surface region and the electret material region.
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