In this paper, we present mathematical analyses to consider the effect of material properties on the sensitivity of the Microelectromechanical systems (MEMS) piezoelectric hydrophone and improve the sensitivity by choosing the proper material. The selected structure in the present paper is a piezoelectric hydrophone able to work at low frequencies. The piezoelectric hydrophones are widely used ...

Results of numerical and experimental investigations a novel inertial piezoelectric rotary type motor based on low profile stator with trapezoidal waveguides. The proposed has simple design is well scalable. Moreover, the allows mount it printed circuit board use in small-size mobile positioning actuating systems. structure square hollowed steel frame four straight waveguides that are used to t...

piezoelectric nanobeams having circular, rectangular and hexagonal cross-sections are synthesized and used in various nano structures; however, piezoelectric nanobeams with hexagonal cross-sections have not been studied in detail. in particular, the physical mechanisms of the surface effect and the role of surface stress, surface elasticity and surface piezoelectricity have not been discussed t...

In this study, a modified disk-shaped multiple-output piezoelectric transformer operated at the fundamental radial vibration mode has been presented. A derived equivalent circuit for the multioutput piezoelectric transformer was used to analyze the performance. Two piezoelectric transformers, a symmetrically electroded piezoelectric transformer with dual outputs and an asymmetrically electroded...

in this paper the active vibration control of a four-story shear frame instrumented with piezoelectric actuators is presented. the piezoelectric actuators are hosted on the columns in two manners and the produced controlling forces by actuators are considered in the equation of motion. the smart structure modeling and control design is carried out using matlab software in state space form. subs...

Piezoelectric motors are widely used in various applications where both precision positioning and miniaturization required. Inertial or quasi-static commonly employed because of their high accuracy, which demands consistent sliding friction between moving sliders static counterparts for reliable operation. In general, slider wear is unavoidable after long-term use. This can often lead to more s...