An analysis of new methods and means for a mesurement of parameters of piezoelectric ceramic elements and materials is carried out. These methods and means are based on a digital principle of the construction of devices. An impuls with a linear frequncy modulation therein is used as an signal for exciting. Results of experimental studies on this subject are represented for discussion.
Keywords: piezo ceramic element, piezo, methods and means of measurement, digital signal processing
An estimate of the frequency discretization interval was obtained in solving diagnostic problems of a piezoceramic element by means of different methods based on measuring the active component of conductivity in a number of discrete points. This allows avoiding precision loss and, at the same time, reducing the number of measurements and computational operations.
Keywords: Piesoceramic element, Q-factor, active component of conductivity
The new method of piezomodule determination of piezoceramic element is offered. It is implemented in devices without memory elements and allows to form the output electrical signal of the corresponding piezomodule automatically right after measurements.
Keywords: piezomodule, piezoceramic element, active component of conductivity, derivative, automated devices.