| 摘要 |
PURPOSE:To simply enable to perform the measurement of concentration of solution having consistensy such as animal body fluids with good accuracy, by obtaining the output by the change in the concentration of objective component between inspected liquid and standard liquid. CONSTITUTION:The signal corresponding to the concentration fed from the detector Es is amplified with the preamplifier A1 and the main amplifier A2 to enable the inspected liquid concentration at the display section DU. Further, the memory M storing the output of the selection circuit SW and A1 between A1 and A2 is provided, and the A1 output value when the standard liquid Cs of known concentration close to the concentration value of the measurement objective liquid is measured immediately before the measurement of inspected liquid Cx is stored in the memory M, and the A1 output corresponding to the inspected liquid concentration and the memory output are differentially fed to the input of A2. As a result, the measurement of concentration of liquid having consistency can simply be made with good accuracy. |
