What does resonator mean?
A resonator is a device or physical system that produces, supports, or responds to resonance. Its most familiar application is in electronics, where quartz resonators provide highly stable frequencies for clocks, radios, and communications equipment. A resonator may also refer to a mechanical or optical arrangement that vibrates in particular ways under the right conditions. The term is usually more technical than “resonating object”: it often implies a deliberately structured component or a system with a clearly defined natural frequency. In acoustics, an resonator can amplify or shape sound by responding strongly to particular frequencies. Understanding the word is useful in fields ranging from circuit design to musical instruments and quantum optics.
nounA device or object that produces or undergoes resonance, especially a component designed to oscillate at a particular natural frequency. In physics, the term can also refer to a system that supports a resonant mode of vibration.
- A device or component that produces resonance or vibrates at a characteristic natural frequency.
- A physical system, such as a string, air column, or cavity, that supports resonant modes of oscillation.
- An object or structure that amplifies or responds to a particular frequency.
"The quartz resonator in the circuit helps maintain a stable frequency."
"The acoustic resonator was adjusted to the appropriate frequency."
"The cavity acts as an optical resonator, confining light between two mirrors."
Used when referring to multiple resonant devices or systems.
"Several resonators were installed along the optical path."
A resonator turns an ordinary vibration into a predictable signal, which is why tiny quartz resonators help clocks keep accurate time.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does resonator come from?
The word derives from the Latin verb resonare, meaning “to sound again” or “to echo,” which in turn comes from re- “again” and sonare “to sound.” English resonance and the suffix -ator, which forms an agent or instrument noun, led to resonator. Related English forms include resonate, resonant, and resonance, all sharing the same Latin root.
How resonator is actually used
The word is most common in physics, engineering, and electronics. In electronics, it usually refers to a component whose natural oscillation frequency is used to control or stabilize a signal.