near-field region
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Near-field scanner — 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… … Wikipedia
near-field — 1. noun a) In physical acoustics, the region of space within a distance a fraction of a wavelength from a sound source. Accordingly, the outer boundary of the near field region is closer for … Wiktionary
Near-field scanning optical microscope — Near field scanning optical microscopy (NSOM/SNOM) is a microscopic technique for nanostructure investigation that breaks the far field resolution limit by exploiting the properties of evanescent waves. This is done by placing the detector very… … Wikipedia
Near field — may refer to: Near field (mathematics), an algebraic structure Near and far field, parts of an electromagnetic field Near field communication, a set of short range wireless technologies, typically requiring a distance of 4 cm or less Near field… … Wikipedia
Intermediate-field region — Intermediate field region: For an antenna, the transition region lying between the near field region and the far field region in which the field strength of an electromagnetic wave is dependent upon the inverse distance, inverse square of the… … Wikipedia
Near field communication — An NFC enabled mobile phone interacting with a SmartPoster Near field communication, or NFC, allows for simplified transactions, data exchange, and wireless connections between two devices in proximity to each other, usually by no more than a few … Wikipedia
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
Near and far field — This article is about the electromagnetic concept. For the mathematical, see Near field (mathematics). Antenna field regions for antennas that are shorter than the wavelength of the radiation they emit, such as the whip antenna of a citizen s… … Wikipedia
Near infrared spectroscopy — (NIRS) is a spectroscopic method utilising the near infrared region of the electromagnetic spectrum (from about 800 nm to 2500 nm). Typical applications include pharmaceutical, medical diagnostics (including blood sugar and oximetry), food and… … Wikipedia
Near East — The original Near East; that is, the Ottoman Empire at the beginning of the eastern question. The term is only meaningful as a contrast to Far East. Much of the original extent is south; moreover, countries such as Greece disavow any association… … Wikipedia
Field (physics) — The magnitude of an electric field surrounding two equally charged (repelling) particles. Brighter areas have a greater magnitude. The direction of the field is not visible … Wikipedia
