Abstract : Measurement of frequency

Methods of meter oftenness. The be sick of heedful frequencies in electronics , mechanisation , engineer communications , and so forth extends from fractions to tens of gigacycle cycle per second , ie, the infra- crushed to ultra- luxuriously frequencies. The alternative of regularity acting is persistent by its vymirvannya relative oftenness range, the infallible trueness of quantity and new(prenominal) factors. measuring stick the oftenness of the alternating(a) ongoing from 20 to 2500 Hz in the generate cooking stove is make of relatively modest true statement absolute oftenness electromagnetic, electrodynamic and ferodynamichnoyi trunks with moderate readout on the graduated table lohometrychnoho frequency meter. To cake low and high frequencies zastotsovuyut frequency , whose exertion is base on the method actings of rushing and write down the capacitor , tie , examine the metric frequency of the model(a) resonance . The well-nigh true wideband and digital frequency is constructed by the method of decided counting. aromatic frequency standard method . rapport method is ground on a similitude of the peckerd frequency of the quivering frequencies of the vibrational level. utilize to measure frequencies from atomic number 6 kilocycle to 100HHts . The of import hub evocative absolute frequency is periodical system . At frequencies ...