| 摘要 |
<p>The present invention provides a PH value detection device and a method of detecting a PH value of a solution. The PH value detection device may comprise: a first electrode and a second electrode, wherein the first electrode and the second electrode are to be inserted into the solution; a power source for applying a bipolar rectangular potential pulse signal to the first electrode and the second electrode; a current detection means connected between the first electrode and the second electrode for detecting a current I flowing through the first electrode and the second electrode; and a calculating unit for calculating the PH value of the solution, based on the detected current I. By means of the above design of the present invention, the use of the fragile glass electrode and the reference electrode, e.g., an Ag/AgCl, saturated calomel electrode, can be avoided, which has a favorable effect on the daily maintenance of the PH value detection device and on the protection of the environment, and it also has a favorable effect on the miniaturization and facilitation of the PH value detection device. In addition, only measuring the current flowing through the electrode pair to calculate the PH value of the solution facilitates real time monitoring of the change of the PH value of the solution.</p> |
