The electronic circuit is an oscillator, an amplifier whose output passes through the quartz resonator. AVRs feature an on-chip oscillator, removing the need for external clocks or resonator circuitry. This beam passes through an input cavity resonator. The OPO consists essentially of an optical resonator and a nonlinear optical crystal. One option is to measure the resonance frequency of a cavity resonator. The split ring resonator and the metamaterial itself are composite materials. The range of magnetometers based on piezoelectric resonator is a few nT (nanoTesla). A more accurate term for it is "piezoelectric resonator". An early example of a MEMS cantilever is the Resonistor, an electromechanical monolithic resonator. The beam first passes through the "buncher" cavity resonator, through grids attached to each side. Q-switching is achieved by putting some type of variable attenuator inside the laser's optical resonator. These small hemispherical resonator gyroscopes made of quartz glass operate in vacuum. The higher the viscosity, the larger the damping imposed on the resonator. Mandolins have a body that acts as a resonator, attached to a neck. The instrument is made of a wooden stick mounted with a gourd shell resonator.