| dbo:abstract |
Ein Vakuumkondensator ist ein elektrischer Kondensator, in dem ein Hochvakuum mit einem Gasdruck von etwa 10−7 Torr bzw. 1,33·10−7 mbar als Dielektrikum verwendet wird. (de) A vacuum variable capacitor is a variable capacitor which uses a high vacuum as the dielectric instead of air or other insulating material. This allows for a higher voltage rating than an air dielectric using a smaller total volume. However, many dielectrics have higher breakdown field strengths than vacuum: 60-170 MV/m for teflon, 470-670 MV/m for fused silica and 2000 MV/m for diamond, compared with 20-40 MV/m for vacuum. There are several different designs in vacuum variables. The most common form is inter-meshed concentric cylinders, which are contained within a glass or ceramic vacuum envelope, similar to an electron tube. A metal bellows is used to maintain a vacuum seal while allowing positional control for the moving parts of the capacitor. (en) |
| dbo:thumbnail |
wiki-commons:Special:FilePath/Vakuum-Varko.png?width=300 |
| dbo:wikiPageExternalLink |
http://www.amstechnologies.com/fileadmin/amsmedia/downloads/4317_jenningscapacitorshighvoltagevacuumandgasfilled.pdf%7C https://www.glvac.com/products/list.aspx%3Fpid=7&lcid=55&lcid2=37%7C https://www.meidensha.com/mai/products/prod_04_10/prod_04_01/index.html http://iequalscdvdt.com https://web.archive.org/web/20161022164512/http:/www.meidensha.com:80/products/industry/prod_04/prod_04_01/index.html |
| dbo:wikiPageID |
6282950 (xsd:integer) |
| dbo:wikiPageInterLanguageLink |
dbpedia-de:Vakuumkondensator |
| dbo:wikiPageLength |
4687 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID |
1124525604 (xsd:integer) |
| dbo:wikiPageWikiLink |
dbr:Bellows dbr:Vacuum_tube dbr:Voltage dbr:Volts dbr:Mechanism_(technology) dbr:Gold dbr:Copper dbc:Inventions_by_Nikola_Tesla dbr:Antenna_tuner dbr:Silver dbc:Capacitors dbr:Glass dbr:Air dbr:Amateur_radio dbr:Broadcasting dbr:Nikola_Tesla dbr:Dielectric_strength dbr:Teflon dbr:Diamond dbr:Dielectric dbr:Dielectric_heating dbr:Metal dbr:Ceramic dbr:Vacuum dbr:Valve_RF_amplifier dbr:Transmitter dbr:Variable_capacitor dbr:Electrical_insulation dbr:Fused_silica dbr:Matching_network dbr:File:Fixed_value_vacuum_capacitor.jpg dbr:File:Vakuum-Varko.png dbr:File:Vacuum_capacitor_with_uranium_glass.jpg |
| dbp:wikiPageUsesTemplate |
dbt:Citation_needed dbt:Cite_web dbt:Commons_category |
| dct:subject |
dbc:Inventions_by_Nikola_Tesla dbc:Capacitors |
| gold:hypernym |
dbr:Capacitor |
| rdf:type |
yago:WikicatCapacitors yago:Artifact100021939 yago:Capacitor102955247 yago:Device103183080 yago:ElectricalDevice103269401 yago:Instrumentality103575240 yago:Object100002684 yago:PhysicalEntity100001930 yago:Whole100003553 |
| rdfs:comment |
Ein Vakuumkondensator ist ein elektrischer Kondensator, in dem ein Hochvakuum mit einem Gasdruck von etwa 10−7 Torr bzw. 1,33·10−7 mbar als Dielektrikum verwendet wird. (de) A vacuum variable capacitor is a variable capacitor which uses a high vacuum as the dielectric instead of air or other insulating material. This allows for a higher voltage rating than an air dielectric using a smaller total volume. However, many dielectrics have higher breakdown field strengths than vacuum: 60-170 MV/m for teflon, 470-670 MV/m for fused silica and 2000 MV/m for diamond, compared with 20-40 MV/m for vacuum. There are several different designs in vacuum variables. The most common form is inter-meshed concentric cylinders, which are contained within a glass or ceramic vacuum envelope, similar to an electron tube. A metal bellows is used to maintain a vacuum seal while allowing positional control for the moving parts of the capacitor. (en) |
| rdfs:label |
Vakuumkondensator (de) Vacuum variable capacitor (en) |
| owl:sameAs |
freebase:Vacuum variable capacitor dbpedia-de:Vacuum variable capacitor yago-res:Vacuum variable capacitor wikidata:Vacuum variable capacitor dbpedia-fi:Vacuum variable capacitor dbpedia-tr:Vacuum variable capacitor https://global.dbpedia.org/id/2MmkQ |
| prov:wasDerivedFrom |
wikipedia-en:Vacuum_variable_capacitor?oldid=1124525604&ns=0 |
| foaf:depiction |
wiki-commons:Special:FilePath/Vacuum_capacitor_with_uranium_glass.jpg wiki-commons:Special:FilePath/Fixed_value_vacuum_capacitor.jpg wiki-commons:Special:FilePath/Vakuum-Varko.png |
| foaf:isPrimaryTopicOf |
wikipedia-en:Vacuum_variable_capacitor |
| is dbo:wikiPageRedirects of |
dbr:Vacuum_capacitor |
| is dbo:wikiPageWikiLink of |
dbr:Electronic_component dbr:Loop_antenna dbr:Nikola_Tesla dbr:List_of_Serbian_inventors_and_discoverers dbr:Capacitor_types dbr:Vacuum_capacitor |
| is foaf:primaryTopic of |
wikipedia-en:Vacuum_variable_capacitor |
