external frequency
[ɪkˈstɜːrnəl ˈfriːkwənsi]
nounpl: external frequencies
frequência externa
1. The frequency of oscillation or vibration applied to a system from an outside source, not generated internally by the system itself
The external frequency of the electromagnetic field was adjusted to match the natural resonance of the material.
A frequência externa do campo eletromagnético foi ajustada para corresponder à ressonância natural do material.
2. In signal processing and telecommunications, the frequency of a signal coming from an external source that affects or modulates an internal system
The circuit was designed to respond to an external frequency of 50 Hz.
O circuito foi projetado para responder a uma frequência externa de 50 Hz.
3. In physics and engineering, the driving frequency imposed on a mechanical or electrical system from outside
When the external frequency equals the natural frequency, resonance occurs.
Quando a frequência externa iguala a frequência natural, ocorre ressonância.
This is a technical term primarily used in academic, scientific, and engineering contexts in both Brazil and Portugal. It is fundamental in physics education and industrial applications, particularly in the study of mechanical and electrical systems. The concept is crucial in understanding resonance phenomena and is widely taught in universities.
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