ELECTRET Meaning and
Definition
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An electret refers to a dielectric material that exhibits quasi-permanent electric polarization. It is a type of material that acquires and maintains a stable electric charge, similar to a permanent magnet that sustains a constant magnetic field. The term "electret" is a combination of "electricity" and "magnet," highlighting its analogical function in the realm of electric fields.
The concept of electrets originates from the field of electrostatics and emerges as a device capable of generating a long-term electric charge. This inherent polarization is typically achieved by subjecting a dielectric material to specific chemical, thermal, or mechanical treatment. As a result, electrets store electric charges that resist dissipation, making them useful in a variety of applications.
Electrets can serve as effective sensors, actuators, and transducers, converting electrical energy into other forms and vice versa. They play vital roles in microphones, loudspeakers, earphones, and many other electroacoustic devices. Additionally, electrets are instrumental in electrostatic precipitators, air purifiers, and certain types of filters, helping to remove unwanted particles from a gaseous medium. Their low cost, small size, and longevity make them highly attractive for countless applications in various fields, including medicine, engineering, and electronics.
Overall, an electret material possesses a stable and long-lasting electric polarization, shifting its behavior closer to that of a permanent magnet within the realm of electric fields.
Common Misspellings for ELECTRET
- wlectret
- slectret
- dlectret
- rlectret
- 4lectret
- 3lectret
- ekectret
- epectret
- eoectret
- elwctret
- elsctret
- eldctret
- elrctret
- el4ctret
- el3ctret
- elextret
- elevtret
- eleftret
- eledtret
- elecrret
Etymology of ELECTRET
The word "electret" derives from combining the terms "electricity" and "magnet". It was coined in 1969 by Heinz Nixdorf, a German electrical engineer and businessman, who was the founder of Nixdorf Computer AG. Nixdorf invented and patented a new type of permanent electric charge material, which he called an "electret". The term "electret" was created to emphasize its electrical properties while drawing parallels to permanent magnets.
