Design of a broadband electroacoustic channel for studying rocks by acoustic spectroscopy with spherically concave transducers

A model of an electroacoustic channel is constructed for acoustic spectrosc opy with spherically concave transducers (SCTs). Numerical calculations whi ch are performed establish the quantitative relationship between the relati ve frequency band of the channel and the ratio of the maximum and minimum t hicknesses of the piezoelectric plate. A study is made of the effect of the characteristic impedance of the damper of SCTs and the parameters of the c ircuit diagrams an the frequency spectrum of the recorded signal.