electromagnetic detection

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• Electromagnetic near-field scanner — could be defined as a measurement system to determine a spatial distribution of an electrical quantity provided by a single or multiple field probes acquired in the near field region of a device under test possibly accompanied by the associated… …   Wikipedia

• Electromagnetic testing — (ET), as a form of nondestructive testing, is the process of inducing electric currents or magnetic fields or both inside a test object and observing the electromagnetic response. If the test is set up properly, a defect inside the test object… …   Wikipedia

• Electromagnetic projectile devices (fiction) — Electromagnetic projectile devices which use electromagnetic means to accelerate solid materials, such as Kinetic energy weaponry, Gauss guns, Mass drivers or Railguns are often used in fiction, especially science fiction.Realism of… …   Wikipedia

• electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… …   Universalium

• Optical heterodyne detection — is an important special case of heterodyne detection. In heterodyne detection, a signal of interest at some frequency is non linearly mixed with a reference local oscillator (LO) that is set at a close by frequency. The desired outcome is the… …   Wikipedia

• Motion detection — is a process of confirming a change in position of an object relative to its surroundings or the change in the surroundings relative to an object. This detection can be achieved by both mechanical and electronic methods. In addition to discrete,… …   Wikipedia

• Diver Detection Sonar — (DDS) systems are sonar and acoustic location systems employed underwater for the detection of divers and submerged swimmer delivery vehicles (SDVs). The purpose of this type of sonar system is to provide detection, tracking and classification… …   Wikipedia

• GTRI Sensors and Electromagnetic Applications Laboratory — The Sensors and Electromagnetic Applications Laboratory (SEAL) is one of seven labs in the Georgia Tech Research Institute.OverviewSEAL researchers investigate radar systems, electromagnetic environmental effects, radar system performance… …   Wikipedia

• Atomic Weapons Detection Recognition and Estimation of Yield — known by the accronym AWDREY was a desk mounted automatic detection instrument, located at the twenty five Royal Observer Corps controls, across the United Kingdom and Northern Ireland, during the Cold War that would have detected any nuclear… …   Wikipedia

• Motionless electromagnetic generator — Magnétoencéphalographie La magnétoencéphalographie (MEG) est une technique de mesure des champs magnétiques induits par l activité électrique des neurones du cerveau. Cette technique est employée avec une visée clinique en neurologie (notamment… …   Wikipédia en Français

• Gravitational wave — In physics, a gravitational wave is a fluctuation in the curvature of spacetime which propagates as a wave, traveling outward from a moving object or system of objects. Gravitational radiation is the energy transported by these waves. Important… …   Wikipedia