METHOD OF COMPENSATING MEASURING ERROR OF BLOOD SUGAR MEASURING INSTRUMENT AND LIGHT SOURCE ADJUSTING DEVICE OF THE SAME

摘要

PURPOSE: To compensate for each kind of error and to measure blood sugar concentration accurately by calculating a measurement error detected by reflection light from a blood sugar testing paper before discoloration and a detection value from the reflection light of the blood sugar testing paper that is discolored due to blood sugar concentration. CONSTITUTION: After a blood sugar measuring instrument is initialized, the measurement key of a key input part 3 is turned on, light is projected to a blood sugar testing paper that cannot be discolor from a light source adjustment circuit part 6 by controlling a microcomputer 1, and the reflection light signal is inputted to the microcomputer 1 by detecting the reflection light signal 7. The microcomputer 1 judges the measurement error of the testing paper according to the signal and warms 11 the exchange of the testing paper when the error is large and stores it when the error is small. Then, a measurement blood is dripped onto the testing paper, the intensity of light is controlled by the microcomputer 1 and light is projected from a circuit part 6 when the discoloration of the testing paper advances due to blood concentration, and the reflection light is detected 7 and is inputted to the microcomputer 1. Then, the signal is compared with the reflection light signal of the testing paper before discoloration being that is in storage, a measurement error is calculated, and a measurement error is compensated for based on it and is converted to a blood sugar concentration value and displayed 10.