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method and apparatus for providing stable voltage to analytical system

  • US 20060232278A1
  • Filed: 04/15/2005
  • Published: 10/19/2006
  • Est. Priority Date: 04/15/2005
  • Status: Active Grant
First Claim
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1. A method for use with a digitally controlled power supply, a reaction cell having first and second electrodes, the power supply coupled with the first electrode, a first signal line coupling the first electrode with a first analog-to-digital convertor, and a voltage sensor coupled with the second electrode, the voltage sensor having a second signal line coupled with a second analog-to-digital convertor, the method comprising the step which follow in the order given:

  • measuring a potential at the second electrode by means of the second signal line;

    making a first approximation to a digital control signal for the power supply;

    measuring a potential at the first electrode by means of the first signal line;

    making a second approximation to the digital control signal for the power supply;

    measuring a potential at the first electrode by means of the first signal line;

    making a third approximation to the digital control signal for the power supply;

    measuring a potential at the second electrode by means of the second supply line.

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