METHOD AND APPARATUS FOR MEASURING CHEMICAL ION CONCENTRATION USING A FEEDBACK- CONTROLLED TITRATOR
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United States of America Patent
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Issued Date -
Jan 22, 2015
app pub date -
Mar 6, 2012
filing date -
Mar 6, 2012
priority date (Note) -
Abandoned
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Abstract
There is provided a method and device for measuring an ion concentration of a sample. The method comprises exposing a chemical sensor to the sample to provide an electrical output signal 5 representing said ion concentration and controlling a titrator exposed to the sample to release or absorb a quantity of ions to the sample. The method may use feedback means comprising Pulse Width Modulation control to drive the titrator such that the sample maintains a stable ion concentration.
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