Capacitive displacement sensor: Difference between revisions

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m Reverted edits by 116.73.70.56 (talk) to last revision by ClueBot NG (HG)
Basic capacitive theory: "Most common" is not the justification for inclusion here, so misleading. "THE area" because same profile.
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==Basic capacitive theory==
[[Capacitance]] is an electrical property which is created by applying an [[electrical charge]] to two conductive objects with a gap between them. ThisA propertysimple iscase mostof commonlythis illustratedproperty using the example ofis two parallel conductive plates of the same profile with a gap between them and a charge applied to them. In this situation, the Capacitance can be expressed by the [[equation]]:
:<math> C = \dfrac{\varepsilon_0 K A}{d} </math> <ref name="Physics">{{cite book|isbn=0-87901-135-1|title=Physics Second Edition|author=Paul Allen Tipler|pages=653–660|publisher=Worth Publishers|year=1982}}</ref>
Where ''C'' is the capacitance, ε<sub>0</sub> is the [[permittivity of free space]] constant, ''K'' is the [[dielectric constant]] of the material in the gap, ''A'' is the area of the plates, and ''d'' is the distance between the plates.