Editing Keystroke sensing (section)

===Inductive===
{{Main|Inductive keyboard}}

Inductive keyboard switches are built using an induction loop. The induction loop generates a magnetic field. To complete the circuit, and register a keypress, a metallic object is placed inside the loop. The presence of the metallic object will increase the overall current flowing through the wire which can be detected by the controller.

Inductive switches are common but the only known keyboard switch example was built by [[HP]] for one of their function generators in the 1970s.

See: [[:Category:Inductive switches|List of inductive switches]]