Patent ID: 6123827
Filing Date: 2000-09-26
Classification: A61B,G01N,Y10T

Abstract:
A method for calibrating a sensor of a kind that measures a predetermined parameter of a test fluid, comprising:placing a calibration solution in a container, wherein a predetermined parameter of the calibration solution has a predetermined value, and wherein the container is configured such that the value of the predetermined parameter can vary over time in a predetermined manner;exposing the sensor to calibration solution supplied from the container, whereupon the sensor produces a calibration solution signal;calculating the value of the predetermined parameter of the calibration solution supplied to the sensor based on its expected variation over time, and comparing the calculated value with the calibration solution signal actually produced by the sensor, to produce a calibration factor;exposing the sensor to the test fluid, whereupon the sensor produces a test fluid signal; andadjusting the test fluid signal in accordance with the calibration factor, to produce a calibrated test fluid signal.