What are some uses for Piezoelectricity?

Question

Piezoelectricity is the property of some crystals to output electricty when put under mechanical stress.

Does anyone have any ideas about what your could use the electricty from this for???

Answer 1

Piezoelectric crystals have been used in phonographs as a stylus to create electrical signals that reflect the sound stored in grooves on a record.  They also can be used as microphones to generate small electrical signals that are created from sound.  Piezoelectic crystal can also be used to measure mechanical displacement much in the same way that a microphone or stylus is used.  These crystals also mechanical warp when electrical current is impressed upon them.  High frequency sound can be reproduced through them.  A tweeter ( a high frequency speaker) can be made from them.They can be used in the same way to generate ultrasonic vibrations which can be used several ways.  One being to measure gas or liquid flow in a pipe.

Answer 2

Piezoelectricity Uses

Answer 3

Piezoelectricity is the ability of some materials (notably crystals and certain ceramics) to generate an electric potential[1] in response to applied mechanical stress. This may take the form of a separation of electric charge across the crystal lattice. If the material is not short-circuited, the applied charge induces a voltage across the material. The word is derived from the Greek piezein, which means to squeeze or press.

The piezoelectric effect is reversible in that materials exhibiting the direct piezoelectric effect (the production of electricity when stress is applied) also exhibit the converse piezoelectric effect (the production of stress and/or strain when an electric field is applied). For example, lead zirconate titanate crystals will exhibit a maximum shape change of about 0.1% of the original dimension. The effect finds useful applications such as the production and detection of sound, generation of high voltages, electronic frequency generation, microbalances, and ultra fine focusing of optical assemblies.

http://www.piezo.com/tech4history.html
http://en.wikipedia.org/wiki/Piezoelectricity

Answer 4

PE material is used to make electrical current into sound and sound into electrical current. SONAR, for example, creates very loud intense sound when electrical current is passed through the PE material that is caused to vibrate. A microphone does the reverse; taking the sound vibrations of a voice and changing that into pulsating electrical current that is amplified and put on a carrier (RF) wave and broadcast as radio transmissions.

Answer 5

you should possibly generate some power with the flexing of the hull or wings. What ought to be prevented is arising extra drag to generate electrical energy; by using fact the performance of piezoelectric or different varieties of power era are a techniques under one hundred%, producing electrical energy in one in all those style may be under destroy-even, and it would be greater valuable to generate the ability from auxiliary power from the main effective engine or from an auxiliary power unit.