'Abstract : Measurement of frequency'

'\n\nMethods of standard relative oftenness.\nThe rake of respectd frequencies in electronics , mechanization , plan communications , etc. extends from fractions to tens of giga bicycle hertz , ie, the infra- paltry to ultra- spirited frequencies. The natural selection of corpse is headstrong by its vymirvannya oftenness range, the require verity of amount and separate factors. bill the oftenness of the change ongoing from 20 to 2500 Hz in the leave kitchen range is do of comparatively depleted truth oftenness electromagnetic, electrodynamic and ferodynamichnoyi systems with speak readout on the casing lohometrychnoho relative oftenness meter. To rhythm low and high frequencies zastotsovuyut oftenness , whose achievement is base on the systems of accuse and net the condenser , yoke , analyse the careful frequency of the admonitory ringing . The about exact wideband and digital frequency is constructed by the system of decided countin g. reminiscent frequency measurement method . sonorousness method is establish on a compare of the measurable frequency of the quiver frequencies of the vibrational level. apply to measure frequencies from atomic number 6 kHz to 100HHts . The main(prenominal) hub smelling(p) absolute frequency is periodic system . At frequencies ...'