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18 relations: Albert W. Hull, Barkhausen–Kurz tube, Cavity magnetron, Doppler effect, General Electric, Hidetsugu Yagi, High frequency, Order of Culture, Osaka University, Radar, Shigeo Satomura, Shintaro Uda, Tohoku University, Ultra high frequency, Ultrasound, Very high frequency, Yagi–Uda antenna, Yoji Ito.
Albert W. Hull
Albert Wallace Hull (19 April 1880 – 22 January 1966) is an American physicist and electrical engineer who made contributions to the development of vacuum tubes, and invented the magnetron.
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Barkhausen–Kurz tube
The Barkhausen–Kurz tube, also called the retarding-field tube, reflex triode, B–K oscillator, and Barkhausen oscillator was a high frequency vacuum tube electronic oscillator invented in 1920 by German physicists Heinrich Georg Barkhausen and Karl Kurz.
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Cavity magnetron
The cavity magnetron is a high-powered vacuum tube that generates microwaves using the interaction of a stream of electrons with a magnetic field while moving past a series of open metal cavities (cavity resonators).
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Doppler effect
The Doppler effect (or the Doppler shift) is the change in frequency or wavelength of a wave in relation to observer who is moving relative to the wave source.
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General Electric
General Electric Company (GE) is an American multinational conglomerate incorporated in New York and headquartered in Boston, Massachusetts.
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Hidetsugu Yagi
was a Japanese electrical engineer from Osaka, Japan.
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High frequency
High frequency (HF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) between 3 and 30 megahertz (MHz).
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Order of Culture
The is a Japanese order, established on February 11, 1937.
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Osaka University
, or, is a national university located in Osaka, Japan.
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Radar
Radar is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects.
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Shigeo Satomura
was a Japanese physicist credited with introducing the ultrasonic Doppler techniques to practical medical diagnostics in the 1950s.
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Shintaro Uda
Japanese inventor.
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Tohoku University
, abbreviated to, located in Sendai, Miyagi in the Tōhoku Region, Japan, is a Japanese national university.
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Ultra high frequency
Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 megahertz (MHz) and 3 gigahertz (GHz), also known as the decimetre band as the wavelengths range from one meter to one decimeter.
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Ultrasound
Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing.
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Very high frequency
Very high frequency (VHF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) from 30 to 300 megahertz (MHz), with corresponding wavelengths of ten to one meter.
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Yagi–Uda antenna
A Yagi–Uda antenna, commonly known as a Yagi antenna, is a directional antenna consisting of multiple parallel elements in a line, usually half-wave dipoles made of metal rods.
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Yoji Ito
was an engineer and scientist that had a major role in the Japanese development of magnetrons and the Radio Range Finder (RRF – the code name for a radar).
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