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Variable capacitor

A variable capacitor is a capacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically. Variable capacitors are often used in L/C circuits to set the resonance frequency, e.g. to tune a radio (therefore it is sometimes called a tuning capacitor or tuning condenser), or as a variable reactance, e.g. for impedance…

History, Electronically controlled capacitance & Mechanically controlled capacitance

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Electronically controlled capacitance

DiodeVaricapsIntermodulationVHFUHF
19 related topics

Mechanically controlled capacitance

RotorStatorDielectricGearVacuum variable capacitor
15 related topics

Special forms of mechanically variable capacitors

ButterflyRFAmplifierPush-pullDC
8 related topics

History

HungarianDezső KordaGerman
3 related topics

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Overview

Mechanically controlled capacitance

Special forms of mechanically variable capacitors

History

Electronically controlled capacitance

Transducers

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Variable capacitor

Nodes64
Edges63
Triples43
Avg. degree1.97
Density0.03125
Components1

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Variable capacitor

Top relations

related to Mechanically controlled capacitance · 7
Variable capacitor → Air, By, In, Maximum, Minimum, The, Various
related to history · 6
Variable capacitor → December, Dezső Korda, German, He, Hungarian, The
related to Digitally tuned capacitance · 5
Variable capacitor → BST, IC, MEMS, RF, SOI/SOS
related to Butterfly · 4
Variable capacitor → Butterfly, DC, RF, Since
related to External links · 4
Variable capacitor → Archived, Build, March, Wayback MachineHigh-res
related to Split stator · 4
Variable capacitor → RF, The, Unlike, While
related to Notes · 2
Variable capacitor → Radios, While
is a · 1
Variable capacitor → capacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically
related to Differential · 1
Variable capacitor → Differential

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Important terminology

variable capacitor capacitance used capacitors stator plates rotor voltage rf butterfly tuning frequency vacuum also often antenna one circuits set

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Variable capacitoris acapacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically0.90text
glass or ceramicinstance ofThese plates are then sealed inside of a non-conductive envelope0.80text
placed under a high vacuuminstance ofThese plates are then sealed inside of a non-conductive envelope0.80text
those used for broadcastinginstance ofThe most common usage for vacuum variables are in high-powered transmitters0.80text
militaryinstance ofThe most common usage for vacuum variables are in high-powered transmitters0.80text
amateur radioinstance ofThe most common usage for vacuum variables are in high-powered transmitters0.80text
as well as high-powered RF tuning networksinstance ofThe most common usage for vacuum variables are in high-powered transmitters0.80text
pressureinstance ofchanging the voltage maintained across the capacitor plates.Some types of industrial sensors use a capacitor element to convert physical quantities0.80text
displacement or relative humidity to an electrical signal for measurement purposes.Capacitive sensors can also be used in the place of switchesinstance ofchanging the voltage maintained across the capacitor plates.Some types of industrial sensors use a capacitor element to convert physical quantities0.80text
e.g. in computer keyboards orinstance ofchanging the voltage maintained across the capacitor plates.Some types of industrial sensors use a capacitor element to convert physical quantities0.80text
Variable capacitorrelated to ButterflyButterfly0.60section
Variable capacitorrelated to ButterflyRF0.60section

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