Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back The Influence of Dissipative Properties of Piezoceramic Sensors on the Characteristics of Wave Solid-State Gyroscopes B.S. LUNIN, M.A. BASARAB The paper presents the results of a study of the mechanical characteristics of PKP-31 piezoceramics, which is used as a material for sensors and actuators in inexpensive wave solid-state gyroscopes. Experimental data obtained by the method of dynamic thermomechanical analysis show that both the elastic modulus and internal friction in this piezomaterial change unevenly during heating and cooling, while the inelastic characteristics of piezoplates from one batch differ signifi cantly from each other. The assessment showed that the drift velocity of the wave pattern in a wave solid-state gyroscope, associated with the inhomogeneity of internal friction in the piezomaterial, can be hundreds of degrees per hour. The possibility of using the dynamic thermomechanical analysis method to select piezoelements with identical characteristics is demonstrated. Keywords: piezoelectric sensor, piezoceramics, dissipation, wave solid-state gyroscope, internal friction. DOI: 10.25791/pribor.3.2025.1565 Pp. 31-35.