| 摘要 |
PURPOSE:To improve the concentration measuring accuracy of measuring object substance by excluding the quantity of electricity based on the biochemical reaction between bio-substance and interfering substance, from the quantity of electricity converted by a sensor element part, and obtaining concentration on the basis of the quantity of electricity reflecting only the concentration of the measuring object substance. CONSTITUTION:A biosensor 1 receives the impression of measuring weak voltage through a connector 35 so as to output the current value outputted from sensor element parts 5-11, to an electronic control device 40. Upon decision to execut measuring of a solution of unknown concentration to be measured, for instance, glucose concentration of urine, the sensor output (current value) of the respective sensor element parts 5-11 is read, and each sensor output read from the interfering substance measuring sensor element part among the read sensor output is converted into the sensor output of the glucose measuring sensor element part 5. After conversion, the sensor output of the element part 5 is corrected, and the concentration of glucose in the urine based on the sensor output after correction is computed. A control signal corresponding to the numeric value of the computed glucose concentration is then outputted to display equipment 50 from the device 40. |
