| 释义 |
Definition of thermionic valve in English: thermionic valve(US thermionic tube) noun Electronics A device giving a flow of thermionic electrons in one direction, used especially in the rectification of a current and in radio reception. 〔电子〕热离子管，热阴极电子管 Example sentencesExamples - The basic thermionic tube with three electrodes is called a triode in view of the number of electrodes.
- All this time the thermionic tube played a major part and went through a lot of development by large corporations to engineer a superior device.
- His work with the thermionic valve in 1904 and 1905 was important to the development of radio.
- This is the fundamental operating principle of vacuum tubes, once called thermionic tubes.
- In 1914 the thermionic valve was in use as a receiver, but as a transmitter it was still in the experimental stage.
- As their name suggests, thermionic valves need to be heated to work.
- It consists of a thermionic tube with a cathode, an anode and a third electrode which is called the collector or counter electrode.
- At the time it was the world's most powerful transmitter using thermionic valves.
- In the West transistors had long replaced the thermionic tube in audio circuits.
- There is one particular wartime project which is of considerable historical interest, since it involved the first large-scale use of thermionic valves for digital computation.
- The same concept led to his creating almost complete vacuums in thermionic tubes.
- To many people, the thermionic valve or electron tube is history.
- The speaker or singer uses a microphone feeding into the above-mentioned amplifier, which incorporates vacuum tubes (thermionic valves).
- The electromagnetic wave generator comprises a thermionic tube having a cathode, an anode and at least one grid.
- These methods are particularly adaptable for amplification of very weak impulses and require careful insulation and even special thermionic tubes for best results.
- He is best remembered as the inventor of the two-electrode radio rectifier, which he called the thermionic valve; it is also known as the vacuum diode, kenotron, thermionic tube, and Fleming valve.
- It's rather odd therefore that even though we ditched thermionic valves for transistors and integrated circuits many years ago, the cathode ray tube has remained the most cost-effective display system.
- Fleming called his device the thermionic valve because it used heat to control the flow of electricity just as a valve controls the flow of water.
Definition of thermionic tube in US English: thermionic tube(British thermionic valve) noun Electronics An electron tube giving a unidirectional flow of electrons emitted from a hot cathode, used especially in the rectification of a current and in radio reception. 〔电子〕热离子管，热阴极电子管 Example sentencesExamples - The same concept led to his creating almost complete vacuums in thermionic tubes.
- At the time it was the world's most powerful transmitter using thermionic valves.
- The speaker or singer uses a microphone feeding into the above-mentioned amplifier, which incorporates vacuum tubes (thermionic valves).
- He is best remembered as the inventor of the two-electrode radio rectifier, which he called the thermionic valve; it is also known as the vacuum diode, kenotron, thermionic tube, and Fleming valve.
- In the West transistors had long replaced the thermionic tube in audio circuits.
- This is the fundamental operating principle of vacuum tubes, once called thermionic tubes.
- It's rather odd therefore that even though we ditched thermionic valves for transistors and integrated circuits many years ago, the cathode ray tube has remained the most cost-effective display system.
- In 1914 the thermionic valve was in use as a receiver, but as a transmitter it was still in the experimental stage.
- All this time the thermionic tube played a major part and went through a lot of development by large corporations to engineer a superior device.
- There is one particular wartime project which is of considerable historical interest, since it involved the first large-scale use of thermionic valves for digital computation.
- The basic thermionic tube with three electrodes is called a triode in view of the number of electrodes.
- As their name suggests, thermionic valves need to be heated to work.
- Fleming called his device the thermionic valve because it used heat to control the flow of electricity just as a valve controls the flow of water.
- To many people, the thermionic valve or electron tube is history.
- The electromagnetic wave generator comprises a thermionic tube having a cathode, an anode and at least one grid.
- These methods are particularly adaptable for amplification of very weak impulses and require careful insulation and even special thermionic tubes for best results.
- It consists of a thermionic tube with a cathode, an anode and a third electrode which is called the collector or counter electrode.
- His work with the thermionic valve in 1904 and 1905 was important to the development of radio.
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