Search results
Results from the WOW.Com Content Network
Piezoelectric balance presented by Pierre Curie to Lord Kelvin, Hunterian Museum, Glasgow. Piezoelectricity (/ ˌ p iː z oʊ-, ˌ p iː t s oʊ-, p aɪ ˌ iː z oʊ-/, US: / p i ˌ eɪ z oʊ-, p i ˌ eɪ t s oʊ-/) [1] is the electric charge that accumulates in certain solid materials—such as crystals, certain ceramics, and biological matter such as bone, DNA, and various proteins—in ...
The major legacy of Jacques Curie is the discovery of the piezoelectric effect with his brother Pierre in 1880. The two brothers were then laboratory assistants at the Faculty of Sciences of Paris, under the direction of Charles Friedel. The accounts of their discovery generally give Jacques Curie only a minor role in favor of his brother Pierre.
The piezoelectric effect was discovered by Pierre and Jacques Curie in 1880. The application of this effect in ignition systems began to be explored in the mid-20th century, leading to the development of modern piezo ignition devices.
Variations on this equipment were commonly used by future workers in that area. Pierre Curie studied ferromagnetism, paramagnetism, and diamagnetism for his doctoral thesis, and discovered the effect of temperature on paramagnetism which is now known as Curie's law. The material constant in Curie's law is known as the Curie constant.
A piezoelectric disk generates a voltage when deformed (change in shape is greatly exaggerated) A piezoelectric sensor is a device that uses the piezoelectric effect to measure changes in pressure, acceleration, temperature, strain, or force by converting them to an electrical charge. The prefix piezo-is Greek for 'press' or 'squeeze'. [1]
Josephson effect of electron tunneling in superconductors is predicted by Brian Josephson. The Little–Parks effect is discovered by William A. Little and Ronald D. Parks. [78] 1963 – John Hubbard, Martin Gutzwiller and Junjiro Kanamori each independently propose the Hubbard model.
The piezoelectric properties of quartz were discovered by Jacques and Pierre Curie in 1880. The vacuum tube oscillator was invented in 1912. [ 32 ] An electrical oscillator was first used to sustain the motion of a tuning fork by the British physicist William Eccles in 1919; [ 33 ] his achievement removed much of the damping associated with ...
The piezoelectric effect is exhibited by crystals (such as quartz or ceramic) for which an electric voltage across the material appears when pressure is applied. Similar to pyroelectric effect, the phenomenon is due to the asymmetric structure of the crystals that allows ions to move more easily along one axis than the others.