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Two-level-system on resonance with a driving field with (blue) and without (green) applying the rotating-wave approximation. This is the point at which the rotating wave approximation is made. The dipole approximation has been assumed, and for this to remain valid the electric field must be near resonance with the atomic transition.
Ferroresonance or nonlinear resonance is a rare [1] type of resonance in electric circuits which occurs when a circuit containing a nonlinear inductance is fed from a source that has series capacitance, and the circuit is subjected to a disturbance such as opening of a switch. [2]
Electrical resonance occurs in an electric circuit at a particular resonant frequency when the impedances or admittances of circuit elements cancel each other. In some circuits, this happens when the impedance between the input and output of the circuit is almost zero and the transfer function is close to one.
Quartz is one member of a family of crystals that experience the piezoelectric effect.The piezoelectric effect has found applications in high power sources, sensors, actuators, frequency standards, motors, etc., and the relationship between applied voltage and mechanical deformation is well known; this allows probing an acoustic resonance by electrical means.
Resonant ultrasound spectroscopy (RUS) is a laboratory technique used in geology and material science to measure fundamental material properties involving elasticity.This technique relies on the fact that solid objects have natural frequencies at which they vibrate when mechanically excited.
It is used in many biosensor systems as a label-free technique to measure bacterial concentration [17] and to detect dangerous pathogens such as Escherichia coli O157:H7 [18] and Salmonella, [19] and yeast cells. [20] [21] Electrochemical impedance spectroscopy is also used to analyze and characterize different food products.
Walmart Inc. president and CEO Doug McMillon is among the company's early users of drone delivery, which has faced a number of obstacles. Here, he delivers a keynote address during CES 2024 at The ...
A resonant converter is a type of electric power converter that contains a network of inductors and capacitors called a resonant tank, tuned to resonate at a specific frequency.