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
More filters
••
TL;DR: Comparison of the individual methods for the measurement of the charge constant of piezoelectric material by means of frequency method, laser interferometer technique, and quasi-static method is presented.
Abstract: The charge constant of piezoelectric material is one of the crucial constant values. At the present time, the measurement of this value is mostly realized by means of three techniques: the frequency method, the laser interferometer technique, and the quasi-static method. These techniques have been practically applied to piezoelectric ceramic samples. Our paper presents comparison of the individual methods with regard to their accuracy and the demands placed on the instrumentation and preparation of the piezoelectric material samples. A “soft” ceramic product marketed under the production code of NCE51 was used in the experiments. The methods are described in detail, including the process of sample preparation, description of the experiments, and procedure of calculating coefficients from the measured values.
47 citations
••
15 Mar 2006TL;DR: In this paper, a design methodology for an energy harvesting device is investigated and results will be presented to validate the design, which is used to convert small amplitude mechanical vibration from a specific machine application into an electrical energy source that could be used for electronic devices with low power requirements.
Abstract: In this paper, a design methodology for an energy harvesting device will be investigated and results will be presented to
validate the design. The energy harvesting device in the study is 31- unimorph piezoelectric cantilever beam which was
used to convert small amplitude mechanical vibration from a specific machine application into an electrical energy
source that could be used for electronic devices with low power requirements. The primary purpose of the design
methodology is to illustrate a method to design a cantilever beam that is optimized for a particular application. The
methodology will show how the vibration data (frequency and amplitude) from the machine was analyzed and then how
this information was incorporated into the final design of the beam. From the given vibration data a range of frequencies
where the energy harvesting device will generate the greatest amount of energy is determined. The device is then
designed specifically targeting that frequency range. This approach is presented as part of a more general approach to
designing energy harvesters for any application. Also, it will be shown how the thickness and type of materials used for
each layer of cantilever beam were chosen, completely independent of the vibration data, without effecting the over all
optimization process.
47 citations
••
TL;DR: In this paper, a hybrid optimization procedure is applied to the design of a scaled airplane wing model, represented by a flat composite plate, with piezoelectric actuation to improve the aeroelastic response.
Abstract: Active control of fixed wing aircraft using piezoelectric materials has the potential to improve its aeroelastic response while reducing weight penalties. However, the design of active aircraft wings is a complex optimization problem requiring the use of formal optimization techniques. In this paper, a hybrid optimization procedure is applied to the design of a scaled airplane wing model, represented by a flat composite plate, with piezoelectric actuation to improve the aeroelastic response. Design objectives include reduced static displacements, improved passenger comfort during gust and increased damping. Constraints are imposed on the electric power consumption and ply stresses. Design variables include composite stacking sequence, actuator/sensor locations and controller gain. Numerical results indicate significant improvements in the design objectives and physically meaningful optimal designs.
47 citations
••
TL;DR: In this article, the experimental study of delayed feedback control using a flexible plate as a research object is presented, where piezoelectric (PZT) patches are used as actuators and foil gauges as sensors, and the optimal positions of PZT actuators on the plate are determined using the particle swarm optimizer.
47 citations