Effect of Glucose(C6H12O6) Addition on PiezoelectricProperties for Sensor Application

Effect of glucose addition on piezoelectric sensing of water solution has been investigated with different percentages (0, 0.05, 0.1 and 0.15) wt. %. Sensing signals (piezoelectric) characterized and achieved by using transducer which transmits a mechanical waves towards the glucose solution cell, and then the receptor received the attenuated signals. The range of operating frequencies was (10 kHz - 50MHz), the results of measurement which included recording the resonance frequencies (in the first order) for all prepared samples. The results showed that the resonance frequency shifted to the higher values (from 5MHz to 35MHz) for glucose concentrations (from 0 to 1 wt. %) of water solution. Also the damping coefficient decreased (from 1.19 to 1.02) for the same range of glucose concentrations.