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Manufacturing method with integrated test and validation procedures

  • US 20030019747A1
  • Filed: 07/19/2001
  • Published: 01/30/2003
  • Est. Priority Date: 07/19/2001
  • Status: Abandoned Application
First Claim
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1. A method of manufacturing an electrochemical gas sensor, comprising the steps of:

  • assembling components to form a sensor assembly having a plurality of electrodes and a plurality of terminals for making an external electrical connection to said electrodes, the sensor assembly providing a measurement dependant on an analyte gas concentration when an appropriate external circuit is applied to said terminals;

    mounting said sensor assembly on an electrical circuit board having an individual electronically readable identifier, having connectors for connecting to said terminals of said sensor assembly and having a connection to a computer system;

    applying an appropriate external electric circuit to said connectors to cause measurement properties of said sensor assembly to stabilise;

    the electrical circuit board monitoring said stabilisation;

    the computer system periodically reading and storing measurement properties of said sensor assembly during stabilisation, said stored measurement properties being attributable to said electrical circuit board identifier and therefore to a specific sensor assembly;

    determining when said stabilisation process is complete;

    determining whether to select the sensor assembly for batch validation and, if it is selected, carrying out at least one validation test on said sensor assembly, the validation test including the step of measuring a validation measurement property of said selected sensor assembly and storing said validation measurement property attributably to a specific sensor assembly.

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