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Track Detection Circuit

См. также в других словарях:

  • Track circuit — A track circuit is a simple electrical device used to detect the presence or absence of a train on rail tracks, used to inform signallers and control relevant signals. Principles and operation The basic principle behind the track circuit lies in… …   Wikipedia

  • Closed-circuit television — CCTV redirects here. For other uses, see CCTV (disambiguation). For the Chinese television station, see China Central Television. Surveillance cameras on a corner. Closed circuit television (CCTV) is the use of video cameras to transmit a signal… …   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

  • 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

  • In-circuit functional tester — Clip On Test Versus Whole Board Functional TestIn circuit functional testing (or clip on testing as it is popularly called) is best described as testing the functionality of each component on the board using test clips. Here, the inference is… …   Wikipedia

  • TDC — aeronaut. abbr. Through Deck Cruisers electr. abbr. Track Detection Circuit abbr. Tape Data Controller abbr. Terrestrial Data Circuit comp. abbr. Tabular Data Control …   United dictionary of abbreviations and acronyms

  • Remote control — For other uses, see Remote control (disambiguation). A television remote control unit (RCU) A remote control is a component of an electronics device, most commonly a television set, used for operating the television device wireless …   Wikipedia

  • Bernard Marshall Gordon — (born in 1927), American inventor and philanthropist, is generally called Bernie rather than Mr. Gordon by associates and subordinates. [As of January, 2007, the book of Bernie s earthly life is still open. Consequently there are no scholarly… …   Wikipedia

  • Motorsport marshal — Track marshals in Britain, in this case waving a red flag Motorsport marshals contribute to more enjoyable, more efficient, and safer motor racing. They are responsible for the safety of competitors and are stationed at various points of danger… …   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

  • Railway signalling — Not to be confused with Railway signal. A gantry of British semaphore signals seen from the cab of a steam locomotive Railway signalling is a system used to control railway traffic safely, essentially to prevent trains from colliding. Being… …   Wikipedia

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