ЧТО ОЗНАЧАЕТ СЛОВО THERMIONIC VALVE
Вакуумная труба
В электронике вакуумная трубка, электронная трубка, трубка или клапан - это устройство, которое управляет электрическим током через вакуум в герметичном контейнере. Вакуумные трубки в основном полагаются на термоэлектронное излучение электронов из горячей нити или катода, нагретого нитью. Этот тип называется термоэлектронной трубкой или термоэмиссионным клапаном. Однако фототуб достигает эмиссии электронов через фотоэлектрический эффект. Не все электронные трубки содержат вакуум: газонаполненные трубки - это устройства, которые полагаются на свойства разряда через ионизированный газ. Простейшая вакуумная трубка, диод, содержит только два элемента; ток может течь только в одном направлении через устройство между двумя электродами, поскольку электроны, излучаемые горячим катодом, проходят через трубу и собираются анодом или в обычных токовых терминах анод на катод. Трубы с одной сеткой или сетками между катодом и анодом позволяют контролировать ток между двумя электродами. Трубы с сетками могут использоваться в качестве электронных усилителей, выпрямителей, переключателей с электронным управлением, осцилляторов и для других целей.
Значение слова thermionic valve в словаре английский языка
Определение термоэлектронного клапана в словаре - электронный клапан, в котором электроны испускаются из нагретого, а не холодного катода.
КНИГИ НА АНГЛИЙСКИЙ ЯЗЫКЕ, ИМЕЮЩЕЕ ОТНОШЕНИЕ К СЛОВУ «THERMIONIC VALVE»
Поиск случаев использования слова
thermionic valve в следующих библиографических источниках. Книги, относящиеся к слову
thermionic valve, и краткие выдержки из этих книг для получения представления о контексте использования этого слова в литературе на английский языке.
1
The
Thermionic Valve and Its Developments in ...
Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.
Sir John Ambrose Fleming,
2012
2
A History of the World Semiconductor Industry
The origins of semiconductor devices were inextricably bound up with those of
the thermionic valve. Consequently, any account of the semiconductor industry
must necessarily be incomplete without some consideration of how the vacuum ...
On electronic voltage stabilizers. Rev Sci Instrum 1939;10 (January):6À21.
Johnson WZ. Cascode amplifier. US Patent 4,647,872; 1987. Blumlein AD.
Improvements in and relating to thermionic valve circuits. British Patent 448,421;
1934.
4
A Practical Introduction to Electronic Circuits
3.1 Introduction The thermionic valve was the first active (amplifying) element in
electronics. Although obsolete for most small-scale amplification, the valve still
finds a place where high voltages must be handled or high-power high-frequency
...
Martin Hartley Jones,
1995
5
The
Thermionic Valve and Its Developments in ...
This scarce antiquarian book is a selection from Kessinger Publishing's Legacy Reprint Series.
John Ambrose Fleming,
2010
The price of transistors is falling rapidly and should soon, in some cases, be
cheaper than the equivalent thermionic valve. Even more significant is the way in
which the technology of the basic types of transistor is settling down, so that the ...
7
Wireless: From Marconi's Black-box to the Audion
importance of his scientific advisorship to Marconi as a context for the invention,
and the notion that he envisioned a well-defined use for the thermionic valve as a
detector in wireless telegraphy when he first invented it, and all these points ...
This chopping off of the waves is what the crystal detector does. The early type of
thermionic valve of J. A. Fleming can also be made to detect in this way, and in
the early days was so used. But it has other characteristics which enable it to be ...
... emission, the phenomenon by which a heated conductor emits electrons. But
he was still credited with the discovery: the "Edison effect" later gave us J. A.
Fleming's thermionic valve, the basis of all electronics until the invention of the ...
10
Innovation and the Communications Revolution: From the ...
... involves the use of different frequencies for carrier waves, often adjacent to one
another in the frequency spectrum, bearing different signals. Figure 5.1 Fleming,
de Forest and audion valve The pioneering 5 Inventors of the thermionic valve.
НОВОСТИ, В КОТОРЫХ ВСТРЕЧАЕТСЯ ТЕРМИН «THERMIONIC VALVE»
Здесь показано, как национальная и международная пресса использует термин
thermionic valve в контексте приведенных ниже новостных статей.
Nik Nak's Weekly Teaser — 15th April, 2015: Dr Johnson's Dictionary
She coined the term, after researchers found a what, fried onto a valve: a moth, ... (This was back in the days when computers used thermionic valves, instead of ... «Essex Chronicle, Апр 15»
MB&F unveils its Nixie machine
Nixie was a once-ubiquitous numerical display built into a “thermionic valve,” what Americans call “vacuum tubes.” It was a time-telling device that post-dates the ... «Telegraph.co.uk, Фев 15»
Rare Edsac post-WWII computer part surfaces in the US
The 1A chassis was designed to contain 28 of the 3,000 Edsac valves. ... The thermionic valve and vacuum tube machine was constructed at the end of World ... «Inquirer, Фев 15»
TNMOC, CCS open EDSAC rebuild exhibit
The team includes students of the original computer pioneers and members of the last generation to be trained in the use of thermionic valves, the key ... «bit-tech.net, Ноя 14»
Almanac: The vacuum tube
... heard 'round the world. For that was the day the British inventor John Ambrose Fleming patented the Thermionic Valve, otherwise known as the Vacuum Tube. «CBS News, Ноя 14»
What Is Electrical Engineering?
The field of electronics was born with the invention of the thermionic valve diode vacuum tube in 1904 by John Ambrose Fleming. The vacuum tube basically ... «LiveScience.com, Авг 14»
Michael Gove's new national curriculum will make singing foreign …
I once had to reproduce a diagram of a thermionic valve. To this day I have no idea what that was or what it did. Latin might as well have been Swahili. As for ... «Mirror.co.uk, Июл 13»
'Flash Gordon' tech: How Sir Maurice Wilkes made practical …
In this context, a vacuum tube, thermionic valve, or electron tube describes a sealed component controlling electric current through a vacuum. A typical early ... «Register, Июн 13»
The return of the vacuum tube?
Vacuum tubes, or thermionic valves, have almost disappeared from our day-to-day life, save for some purist sound rigs and high-power radio base stations. «Gizmag, Май 12»
The vision that gave SA power
In electronics, a thermionic valve is a device that relies on the flow of an electric current through a vacuum. Electrodes placed between the cathode and anode in ... «Independent Online, Фев 12»