Abstract
For measuring concentration of electrolytic solution resonance method has been applied by using a Q meter. The method is such a way that measuring Q variation continuously of the printed coil dipped into pure water in a cell while solution is transfered and diffused into pure water through control plate and cellophane transferring membrane. Coucentration decided by Q variation curves are obtainable for different concentration and for different components of solution.
The concentration has been set between the range of 0.05∼0.5N for the solution under test at this time. It is found that concentration and components are presumable from the measured curves of a solution with unknown parameter through the experiment with the test frequency at 8MHz. In order to identify the specific parameters of each measured curve, the following two methods were taken for identifying solution under test.
1) Decide parameters by non-linear regression analysis method while approximate measured curves by complemented error function.
2) Compare measured and reference curves overlupped on computer graphic display.
The fundamental data is obtained for the identification of unknown solution with the data analysis mentioned above.
