piezoelectric effect


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Related to piezoelectric effect: Piezoelectric transducer

pi·e·zo·e·lec·tric ef·fect

the property of certain crystalline or ceramic materials to emit electricity when deformed and to deform when an electric current is passed across them, a mechanism of interconverting electrical and acoustic energy; an ultrasound transducer sends and receives acoustic energy using this effect.

piezoelectric effect

(pe-a'zo-e-lek'trik)
In ultrasound, a change of the mechanical action of ceramic crystals into an electrical impulse and vice versa.
See: triboluminescence
References in periodicals archive ?
The increase in frictional energy dissipation can be massively offset by the decrease in free volume of matrix at 60 wt.% content of PMN, and the impact of piezoelectric effect on damping properties can be significantly indicated.
If the working temperature of PMBs is higher than Curie's point, the piezoelectric effect will disappear and then the effective bending rigidity can be rewritten as
A couple of years ago, Wang's team at the Georgia Institute of Technology was working on a miniature generator based on an energy phenomenon called the piezoelectric effect, which is electricity resulting from pressure.
One method of accomplishing this would be to implement an algorithm within the infrared device capable of calculating the concentration of pixel intensities(14) produced by the M13 virus' piezoelectric effect. Another method would be to implement an algorithm that calculates the qualitative/quantitative effects that heat diffusion has on soil temperature distribution(15) as a M13 affected person takes steps, thereby determining the population center origin of that particular person.
Thus, movement, shaft or lateral pressures are bone formation stimulating factors , following bone collagen fibres slipping from each other, leading to the appearance of a difference in electrical potential, a process that is based on the so-called "piezoelectric effect" (Sbenghe, 2005:34), the cause thus being a mechanical one, while the effect is electric.
Michael Hendricks, the company's vice president and COO, explained, "The flexibility of ACI's patented fiber and fiber composites gives ACI's products a physically superior capability to convert useful amounts of electrical power from vibration or motion via the piezoelectric effect." He concluded, "ACI uses the same or similar components to reverse this process and actively dampen vibration."
They rigorously derive the equation governing the piezoelectric effect of a material, and along the way establish a number of fundamental properties of the Kohn-Sham map.
One of the initial applications of the piezoelectric effect was an ultrasonic submarine detector developed I during the First World War.
The piezoelectric effect is the generation of electric power in proportion to the strain produced when pressure is applied to certain materials, used in impact/vibration sensors.
The piezoelectric effect induced by digoxin mediated sodium potassium ATPase inhibition can generate cellular succussion and the molecular electromagnetic traces can get stored in electric dipoles of water.
The geometrical deformation of the transmitter ring can modulates the phase or the amplitude (variation of the radiation resistance due to the geometrical deformation [14]) of a transmitted GHz/THz signal: the modulation is due to the piezoelectric effect of the AlN piezoelectric layer and is performed by applying a resonance control signal which can be found at lower frequencies.
The piezoelectric actuator is based on the piezoelectric effect that consists in the variations of the dimensions of a body subjected to an electric voltage.