| 摘要 |
PURPOSE:To measure the stable potential where the fluctuation between the electrodes is reduced with high accuracy, by discharging an electrode composed of PbO2 or Pb chraged continuously with low current for short time then opening the circuit and measuring the voltage. CONSTITUTION:PbO2 or Pb electrode charged continuously with low current density, for example 5mA/cm<2>, is discharged for short time then open circuited to measure the voltage. Since it is charged continuously with low current, it causes no deterioration due to reaction with diluted sulfuric acid while since the potential is measured under open circuit, polarization due to charge/discharge will never occur to reduce fluctuation between electrodes resulting in accurate measurement of stable potential. |
