Target
(Metalic Non-metalic)
Sensor Face
Capacitive Reactance The opposition alternating current resulting from circuit
capacitance. Capacitive reactance inversely proportional to
frequency (f) and capacitance (C).
Xc =
1
2πfc
Capacitor device manufactured have specific capacitance.
”The unit for capacitive reactance the ohm. May also used to
describe the processing circuits together with memory and
other circuits needed for processing information.
Capacitive Proximity Switch type sensing switch that produces electrostatic field to
detect the presence object without touching the object.
C k
A
d Distance between plates
Area the plates
Dialectric constant
or
or
+ +
Capacitor (Non-Polarized)
Capacitor (Polarized)
Central Processor Unit (CPU) The decision-making part computer.
.The symbol for capacitive
reactance “XC
