The phrase "air capacitor" is correct and usable in written English.
It can be used in contexts related to electronics or electrical engineering, specifically when discussing a type of capacitor that uses air as the dielectric material.
Example: "The design of the air capacitor allows for high voltage applications due to its excellent insulation properties."
Alternatives: "air gap capacitor" or "air dielectric capacitor".
The device implements a switchable air gap capacitor and is therefore not limited in lifetime by dielectric charging as opposed to contact-type capacitive switches implementing high-k dielectrics.
Even though these switched air gap capacitors have a rather low capacitance ratio of around 5 6, they can still form adequate switching devices and RF-circuits by making use of properly designed transmission lines and when combined with high-Q inductors.
Then, the sample with laminated coatings was placed in the thermostabilized four-electrode cell, which permitted to control the sample thickness during measurements using an additional air-dielectric capacitor.
Hence, they have such names as mica, paper, ceramic, air, and electrolytic capacitors.
In this paper, we introduce the effectiveness of CNFs as complementary functional materials especially for applications in the energy and environment fields, such as Li-ion secondary batteries, fuel cells, electric double-layer capacitors, and air purification.
Single- and double-air-gap MEMS capacitors, as well as some dedicated test structures needed to calibrate the electro-mechanical parameters and explore the reliability of the proposed technology, have been fabricated with the new process.
Dielectric constants of liquids and solids may be determined by comparing the value of the capacitance when the dielectric is in place to its value when the capacitor is filled with air.
Applications using electrospun nanofibers include gas sensors, nerve guidance scaffolds, air filters, nano sensors, energy storage capacitors and solar cells [3 8].
We present a concept for the characterization of micro-fabricated based resonator incorporating air-bridge metal-insulator-semiconductor (MIS) capacitor to continuously monitor an individual's state of glucose levels based on frequency variation.
