Effect of Illumination on the Piezoelectric Characteristics of Quartz Resonators

The results of action of illumination on the piezoelectric characteristics of quartz resonators in the form of a tuning fork subjected to prior training with increased friction of the outside ambient are presented. It is found out that the piezoelectric characteristics of such resonators considerably change depending on the intensity and spectrum of illumination. A suggestion is made that the discovered change in the characteristics of the resonators is due to dislocations formed in the resonator during the training with increased friction of the outside ambient and is a display of the well-known photoplastic effect and its quenching.