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Setra Blog

Nov 17, 2016 5:41:00 AM

What is Capacitance?

Capacitance is becoming more integrated in many of today’s applications such as computer memory, condenser microphones, radio receivers, and pulsed magnets. Capacitance is defined as a measure of the amount of potential electric energy that can be stored for a given medium in an electric conductor.  A capacitor is an electronic device designed to provide capacitance in an electrical circuit by providing two conducting electrode plates for storing energy. This technology doesn’t measure the amount of energy stored but rather the potential energy that can be stored. There are various methods of measuring capacitance, generally measured in farads (micro, nano, and pico).  





How Does it Work? (Figure 1)

A capacitor consists of two conducting plates separated by a dielectric material (insulating layer). Capacitors often differ in size, arrangements of plates and the type of dielectric materials used. When a capacitor is connected in a circuit, the power source’s voltage forces electrons onto the surface of one plate and pulls electrons off the surface of the other plate. This results in an energy potential difference between the two plates. The capacitance value of a capacitor can be fixed or adjusted and varying based on application.


What are some applications?

  • Pressure Transducers
  • Car Stereo Systems
  • Custom Circuit Boards
  • High Pass Filters
  • Low Pass Filters
  • Band Pass Filters
  • Band Stop Filters


CLICK HERE to learn more about Setra’s capacitance based transducers.

Topics: General Industrial OEM, General Industrial

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