System for Measuring the Electric Potential of a Voltage Source
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United States of America Patent
Stats
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N/A
Issued Date -
Jun 17, 2010
app pub date -
Sep 22, 2005
filing date -
Sep 22, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A non-invasive measurement system (110) for measuring the electrical potential of a voltage source (20, 120) includes a sensing electrode (50, 151) spaced from the voltage source (20, 120). Preferably the voltage source (20, 120) is within a biological cell (115) located in a nutrient bath (119) including electrolytic medium (117) and an object (30, 190) is a portion of the electrolytic fluid (117) located between the cell (115) and the sensing electrode (50, 151). A feedback electrode (181) is formed in an annular shape and surrounds the sensing electrode (50, 151) thus creating an annular fluid region therebetween. The value of the voltage in the annular region (131) is set substantially equal to the value of the voltage in the object (190) and therefore the impedance between the object (190) and a stray voltage source (40) is maximized.
First Claim
Other Claims data not available