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Method of using a computer to collect chemical signals directly

  • US 5,832,410 A
  • Filed: 06/11/1997
  • Issued: 11/03/1998
  • Est. Priority Date: 12/06/1994
  • Status: Expired due to Fees
First Claim
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1. A method of using a computer to collect chemical signals directly from a chemical sensor, in which said computer is provided with an Analog-to-Digital converter (ADC) and said chemical sensor is connected to said ADC with a transforming circuit, said method comprising the following steps:

  • converting output signals received from said chemical sensor into digital signals by using said transforming circuit and said ADC in cooperation with a control computer program executed in said computer;

    transferring said digital signal from said ADC to said computer; and

    processing said digital signals in said computer in accordance with the type of said chemical sensor;

    wherein said chemical sensor is not a chemical sensor used in amperometry and conductometry,wherein said transforming circuit is a voltage follower provided that the chemical sensor is a chemical sensor used in potentiometry, andwherein said computer is further provided with a Digital-to-Analog converter (DAC), and said DAC is connected to said chemical sensor by a Galvanostat circuit, wherein a Galvanostatic current is received by said chemical sensor from said Galvanostat circuit in cooperation with said DAC and said control computer program executed by said computer so that a potentiometry under Galvanostatic condition is carried out.

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