Impedance spectroscopy based systems and methods
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United States of America Patent
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Jan 1, 2008
Grant Date -
Jul 29, 2004
app pub date -
Sep 5, 2003
filing date -
Mar 6, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
One aspect of the invention provides a device that non-invasively determines the concentration of a substance in a target. The device includes a first electrode, a measuring circuit, and a data processor. In one embodiment of the device, the first electrode can be electrically insulated from the target, e.g., a cover layer of insulating material covers the first electrode.
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