FREQUENCY-TEMPERATURE COEFFICIENT OF AN ELECTRODE-SEPARATED PIEZOELECTRIC SENSOR IN THE LIQUID PHASE

摘要

The frequency-temperature coefficient of an electrode-separated piezoelectric sensor (ESPS) was derived theoretically and verified experimentally over the temperature range 10-50 degrees C. The frequency-temperature coefficient of an ESPS in an electrolyte solution is strongly dependent on the conductivity of the solution. A near-zero frequency-temperature coefficient can be obtained under certain solution conditions. In a non-electrolyte solution, the frequency-temperature coefficient of the ESPS is similar to that of a normal quartz crystal microbalance. [References: 16]