Topic
Piezoelectric sensor
About: Piezoelectric sensor is a research topic. Over the lifetime, 7127 publications have been published within this topic receiving 115903 citations.
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the construction of inverse filters are illustrated, based on homogenized energy models, which can be used to approximately linearize the piezoceramic transducer behavior for linear design and control implementation.
Abstract: Hysteresis and constitutive nonlinearities are inherent properties of ferroelectric transducer materials due to the noncentrosymmetric nature of the compounds. In certain regimes, these effects can be mitigated through restricted input fields, charge- or current-controlled amplifiers, or feedback designs. For general operating conditions, however, these properties must be accommodated in models, transducer designs, and model-based control algorithms to achieve the novel capabilities provided by the compounds. In this paper, we illustrate the construction of inverse filters, based on homogenized energy models, which can be used to approximately linearize the piezoceramic transducer behavior for linear design and control implementation. Attributes of the inverse filters are illustrated through numerical examples and experimental open loop control implementation for an atomic force microscope stage
37 citations
TL;DR: In this article, a self-sensing system with a cantilever fabricated from piezoelectric materials, PZT, is presented, in which the problem of balancing the bridge circuit is equivalent to the system identification and state estimation problem.
Abstract: This paper addresses system identification and vibration control of a cantilever fabricated from piezoelectric materials, PZT, and shows how system identification and state estimation can be used to achieve self-maintenance of a self-sensing system. Currently, self-sensing systems that have concurrent actuation and sensing can be made by using a bridge circuit. However, hardware tuning is still needed due to the unstable nature of an imbalanced bridge circuit. This problem becomes serious in the space environment where human beings may not be available to perform the maintenance. A method of achieving self-sensing without a bridge circuit is proposed in this paper. Dynamics of this proposed system can be described as the state space expression with a direct transmission component. This means that the problem of balancing the bridge circuit is equivalent to the system identification and state estimation problem. By performing a simple experiment, a model of the system was identified using the 4SID, SubSpac...
37 citations
TL;DR: In this article, a coupled improved zigzag theory was proposed for the dynamic analysis of hybrid plates with segmented piezoelectric sensors and actuators, where the degrees of freedom corresponding to the quadratic component of the electric potential distribution were associated with the physical nodes.
37 citations
TL;DR: In this paper, the authors provided an exact analytical solution for free vibration analysis of thick circular/annular plates, both upper and lower surfaces of which are in contact with a piezoelectric layer.
37 citations
TL;DR: In this article, the authors investigated the active control of panel flutter with piezoelectric transducers and including linearized potential flow aerodynamics, which was accomplished by approximating the aerodynamic generalized forces with infinite impulse response filters.
Abstract: This article investigates the active control of panel flutter with piezoelectric transducers and including linearized potential flow aerodynamics. The aerodynamic modeling is accomplished by approximating the aerodynamic generalized forces with infinite impulse response filters. These filters are coupled to the in vacuo panel dynamic system in feedback, thus, creating a coupled, aeroelastic system. The panel model is developed from a Rayleigh-Ritz approach and includes the mass and stiffness effects of a piezoelectric transducer. Acting as a self-sensing actuator, the piezoelectric transducer is used to implement direct rate feedback control. Results of an analytical implementation of this control system demonstrate a significant increase in the flutter boundaries.
37 citations