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Что (кто) такое radio frequency - определение
ELECTROMAGNETIC FREQUENCIES RANGING FROM 3 KHZ TO 300 GHZ
Radio frequencies; Radio Frequency; Radiofrequency; RF spectrum; Radio frequencies and wavelengths; Radio-frequency; Radio-frequency spectrum; RF stage; Radio Frequencies (table); RF signal; Radio frequemcy; Radio frequency spectrum; Rf wave; Wireless frequency; R.F.; R.f.; Rf.; R F; RF; RF energy; Radio-frequency communication; Radio frequency communication; Radio-frequency current; RF current
Найдено результатов: 3644
radio frequency
¦ noun a frequency or band of frequencies in the range 104 to 1011 or 1012 hertz, suitable for use in telecommunications.
Radio frequency
Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around to around . This is roughly between the upper limit of audio frequencies and the lower limit of infrared frequencies;A.
r.f.
¦ abbreviation radio frequency.
Radio-frequency identification
![A surgeon implants British scientist Dr [[Mark Gasson]] in his left hand with an RFID microchip (March 16, 2009).](https://commons.wikimedia.org/wiki/Special:FilePath/Dr Mark Gasson has an RFID microchip implanted in his left hand by a surgeon (March 16 2009).jpg?width=200 "A surgeon implants British scientist Dr [[Mark Gasson]] in his left hand with an RFID microchip (March 16, 2009).")
![J-Chip]] 8-channel receiver next to timing mat. The athlete wears a chip on a strap around his ankle. [https://web.archive.org/web/19961218232821/http://www.ironman.de/ Ironman Germany] 2007 in Frankfurt.](https://commons.wikimedia.org/wiki/Special:FilePath/Marathon Zeitnahme.JPG?width=200 "J-Chip]] 8-channel receiver next to timing mat. The athlete wears a chip on a strap around his ankle. [https://web.archive.org/web/19961218232821/http://www.ironman.de/ Ironman Germany] 2007 in Frankfurt.")
TECHNOLOGY USING ELECTROMAGNETIC FIELDS TO AUTOMATICALLY IDENTIFY AND TRACK TAGS ATTACHED TO OBJECTS
Contactless identification; Rfid tag; Rfid; Optical RFID; Arphid; Spychip; Spy chips; Spy chip; ID chip; Optical rfid; RF/ID; Smart labels; RFID; RFID tag; Radio Frequency Identification; Radio frequency identification; Radio id; Embedded ID chip; Embedded id chip; Radio identification tag; RFID chip; RFID tracking module; Blocker tag; Pit tag; Passive Integrated Transponder; Bulk reading; Chip tag; Radio tag; Rfid in hand; Read-on-metal; RF ID tag; Spychips; Passive RFID; Passive integrated transponder; PIT tag; Radiofrequency identification; RFID shielding; Applications of radio frequency identification; RFID tags; Privacy implications of radio-frequency identification; Controversies surrounding radio-frequency identification; Contactless chip
<hardware> (RFID) Small radio transponders or "tags"
designed to be attached to items like products in a
supermarket to allow the items to be identified and tracked by
a remote system. Typically an RFID tag includes an
integrated circuit that stores data and interfaces to the
antenna, allowing the stored data to be retrieved by the
remote system.
(2008-07-30)
Radio-frequency identification
TECHNOLOGY USING ELECTROMAGNETIC FIELDS TO AUTOMATICALLY IDENTIFY AND TRACK TAGS ATTACHED TO OBJECTS
Contactless identification; Rfid tag; Rfid; Optical RFID; Arphid; Spychip; Spy chips; Spy chip; ID chip; Optical rfid; RF/ID; Smart labels; RFID; RFID tag; Radio Frequency Identification; Radio frequency identification; Radio id; Embedded ID chip; Embedded id chip; Radio identification tag; RFID chip; RFID tracking module; Blocker tag; Pit tag; Passive Integrated Transponder; Bulk reading; Chip tag; Radio tag; Rfid in hand; Read-on-metal; RF ID tag; Spychips; Passive RFID; Passive integrated transponder; PIT tag; Radiofrequency identification; RFID shielding; Applications of radio frequency identification; RFID tags; Privacy implications of radio-frequency identification; Controversies surrounding radio-frequency identification; Contactless chip
Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder, a radio receiver and transmitter.
Radio-frequency engineering
SPECIALTY OF ELECTRONIC ENGINEERING
Radio equipment; Radio electronics; Radio frequency engineering; RF circuit; RF Engineering; Rf engineer; RF engineer; RF Engineer; Mathematics of radio-frequency engineering; Radio Frequency devices; RF engineering; Mathematics of radio engineering
Radio-frequency (RF) engineering is a subset of electronic engineering involving the application of transmission line, waveguide, antenna and electromagnetic field principles to the design and application of devices that produce or utilize signals within the radio band, the frequency range of about 20 kHz up to 300 GHz.A.
Radio-frequency quadrupole
Radio Frequency Quadrupole; Radio frequency quadrupole
A radio-frequency quadrupole (RFQ) is a linear accelerator component generally used at low beam energies, roughly 2keV to 3MeV. It is similar in layout to a quadrupole mass analyser but its purpose is to accelerate a single-species beam (a beam of one particular type of particle) rather than perform mass spectrometry on a multiple-species beam.
Radio-frequency skin tightening
Thermage; Radio Frequency skin tightening; Radio frequency skin tightening
Radio-frequency skin tightening is an aesthetic technique that uses radio frequency (RF) energy to heat skin with the purpose of stimulating cutaneous collagen, elastin and hyaluronic acid production in order to reduce the appearance of fine lines and loose skin. The technique induces tissue remodeling and production of new collagen and elastin.
Electromagnetic radio frequency convergence
Draft:Electromagnetic Radio Frequency Convergence; Electromagnetic Radio Frequency Convergence; Rf convergence
Electromagnetic radio frequency (RF) convergence is a signal-processing paradigm that is utilized when several RF systems have to share a finite amount of resources among each other. RF convergence indicates the ideal operating point for the entire network of RF systems sharing resources such that the systems can efficiently share resources in a manner that's mutually beneficial.
Superconducting radio frequency
![A cross section view of the niobium superconducting radio frequency cavity at [[Fermilab]]](https://commons.wikimedia.org/wiki/Special:FilePath/A 1.3 GHz nine-cell superconducting radio frequency - cross section.JPG?width=200 "A cross section view of the niobium superconducting radio frequency cavity at [[Fermilab]]")
RF Superconductivity; Radio Frequency Superconductivity; Superconducting RF; Superconducting Radio Frequency
Superconducting radio frequency (SRF) science and technology involves the application of electrical superconductors to radio frequency devices. The ultra-low electrical resistivity of a superconducting material allows an RF resonator to obtain an extremely high quality factor, Q.
Википедия
Radio frequency
Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around 20 kHz to around 300 GHz. This is roughly between the upper limit of audio frequencies and the lower limit of infrared frequencies; these are the frequencies at which energy from an oscillating current can radiate off a conductor into space as radio waves. Different sources specify different upper and lower bounds for the frequency range.
