Investigation of a pulsed waveguide piezoelectric pressure sensor

The problem of pulsed mechanical action on a stepped acoustic waveguide with a sensitive piezoceramic element in the presence of a perfectly rigid boundary is considered. The dependence of the stress generated by the piezoelectric element on time, measuring circuit parameters, and external perturbing action is obtained analytically. A calibration of the waveguide piezoceramic sensor of the proposed design, which is intended for measuring the pressure of shock waves incident on a solid obstacle, is performed by the thumper method.