Any of various apparatus for exhibiting or utilizing the effects of resonance in connection with open circuits, as a device having an oscillating circuit which includes a helix of bare copper wire, a variable number of coils of which can be connected in circuit with a condenser and spark gap excited with an induction coil. It is used to create high-frequency electric brush discharges.
The antenna system and other high-frequency circuits of a receiving apparatus.
Acoustic chamber, generally of fixed volume, with a specific resonant frequency. Applications include induction and exhaust systems.
a hollow chamber whose dimensions allow the resonant oscillation of electromagnetic or acoustic waves
an electrical circuit that combines capacitance and inductance in such a way that a periodic electric oscillation will reach maximum amplitude
a chamber that contains a specific volume of air which is designed to cancel out certain frequencies of sound produced by the engine and therefore inturn the exhaust note is quiter
a combination of capacitor and inductor which resonates at its own natural frequency
a miniature component where its own natural frequency is designed for the excitation frequency or system natural frequency
an acoustic, mechanical, electromagnetic or biological system whose individual parts are tuned to a particular frequency and on being excited by a signal with this precise frequency starts to oscillate, i
an apparatus that is designed to boost the amplitude of sound at one or more selected frequencies
a passive device that is used with the clock circuit of an IC to set the speed of the IC
a screen that lets some frequencies of a complex tone through while inhibiting others
Any acoustical implement, usually in the shape of a hollow vessel, that serves to reinforce sounds by resonance;
A volume, bound at least in part by highly reflective surfaces, in which light of particularly discrete frequencies can set up standing wave modes of low loss.
In radio and radar applications, a circuit that will resonate at a certain frequency, or over a range of frequencies, when properly excited. An important type of resonator is the cavity resonator, a closed hollow volume having conducting walls. The frequency at which such cavities resonate is a function of their volume and shape. They are used for making accurate frequency comparisons and for generating radio frequencies, usually in the microwave region.