thermionic generator

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• thermionic power converter — ▪ electronics Introduction also called  thermionic generator,  thermionic power generator,  or  thermoelectric engine        any of a class of devices that convert heat directly into electricity using thermionic emission rather than first… …   Universalium

• Thermionic converter — A thermionic converter consists of a hot electrode which thermionically emits electrons over a potential energy barrier to a cooler electrode, producing a useful electric power output. Caesium vapor is used to optimize the electrode work… …   Wikipedia

• Radioisotope thermoelectric generator — A radioisotope thermoelectric generator (RTG, RITEG) is an electrical generator which obtains its power from radioactive decay. In such a device, the heat released by the decay of a suitable radioactive material is converted into electricity by… …   Wikipedia

• thermoelectric power generator — Introduction       any of a class of solid state devices (solid state device) that either convert heat directly into electricity or transform electrical energy into thermal power for heating or cooling. Such devices are based on thermoelectric… …   Universalium

• Radioisotope piezoelectric generator — A Radioisotope piezoelectric generator converts energy stored in the radioactive material directly into motion to generate electricity by the repeated deformation of a piezoelectric material. This approach creates a high impedance source and,… …   Wikipedia

• therm´i|on´i|cal|ly — therm|i|on|ic «THURM y ON ihk, THUR mee », adjective. Physics. of or having to do with thermions: »thermionic emission. A thermionic generator is a vacuum or gas filled device with two elements or electrodes insulated from one another (J. J.… …   Useful english dictionary

• therm|i|on|ic — «THURM y ON ihk, THUR mee », adjective. Physics. of or having to do with thermions: »thermionic emission. A thermionic generator is a vacuum or gas filled device with two elements or electrodes insulated from one another (J. J. William Brown).… …   Useful english dictionary

• RTG — Radioisotope Thermionic Generator Contributor: CASI …   NASA Acronyms

• Atomic battery — The terms atomic battery, nuclear battery, tritium battery and radioisotope generator are used to describe a device which uses the emissions from a radioactive isotope to generate electricity. Like nuclear reactors they generate electricity from… …   Wikipedia

• energy conversion — ▪ technology Introduction       the transformation of energy from forms provided by nature to forms that can be used by humans.       Over the centuries a wide array of devices and systems has been developed for this purpose. Some of these energy …   Universalium

• Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …   Wikipedia