Quantum — In physics, a quantum (plural: quanta) is an indivisible entity of a quantity that has the same units as the Planck constant and is related to both energy and momentum of elementary particles of matter (called fermions) and of photons and other… … Wikipedia
Quantum Tunnelling Composite — Quantum Tunnelling Composites (or QTCs) are composite materials of metals and non conducting elastomeric binder, used as pressure sensors. As the name implies, they operate using quantum tunnelling: without pressure, the conductive elements are… … Wikipedia
List of sensors — * Accelerometer * Touch sensor * Active pixel sensor * Air flow meter * Alarm sensor * Bedwetting alarm * Bhangmeter * Biochip * Biosensor * Breathalyzer * Capacitance probe * Carbon paste electrode * Carbon monoxide detector * Catadioptric… … Wikipedia
Cryogenic current comparator — The cryogenic current comparator (CCC) is used in the electrical precision measurements to compare electric currents and/or to determine electric current ratios with highest accuracy. This device exceeds the accuracy of other current comparators… … Wikipedia
Hall effect — For the Colombian band, see The Hall Effect (band). The Hall effect is the production of a voltage difference (the Hall voltage) across an electrical conductor, transverse to an electric current in the conductor and a magnetic field perpendicular … Wikipedia
Charge-coupled device — A specially developed CCD used for ultraviolet imaging in a wire bonded package. A charge coupled device (CCD) is a device for the movement of electrical charge, usually from within the device to an area where the charge can be manipulated, for… … Wikipedia
radiation measurement — ▪ technology Introduction technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta, and gamma rays or neutrons, for the purpose of measurement. The term ionizing radiation refers to those… … Universalium
Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr … Wikipedia
List of Legion of Super-Heroes members — The Legion of Super Heroes is a team of comic book superheroes in the future, as published by DC Comics. It has gone through various iterations, as well as two separate reboots. Contents 1 Original team (1958–1994) 1.1 Founding members 1.2 … Wikipedia
Observer effect (physics) — For other uses, see Observer effect. In physics, the term observer effect refers to changes that the act of observation will make on the phenomenon being observed. This is often the result of instruments that, by necessity, alter the state of… … Wikipedia
