National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Quartz crystal oscillator - the most frequently used source of standard frequency
Šojdr, Ludvík
This contribution presents on overview of progress in technology and parameters of both quartz crystal resonators and high stability quartz - crystal oscillators.
Introduction to time and frequency metrology
Čermák, Jan
Basic concepts such as time interval, time scale and synchronization encountered in metrology of time and frequency are introduced. Attention is paid to frequency staility. Also described are the methods of accurate time transfer applicable in the territory of the Czech Republic /GPS, DCF long-wave transmission, internet/.
Measurement of time and frequency
Čermák, Jan
Basic methods of time and frequency measurement are described. Attention is paid to measurement of period, frequency and time interval based on reciprocal time-interval counter. Stanford Research 620 counter serves to illustrate the case. Also mentioned is the calibration/measurement capability of the National Time and Frequency Standard.
National time and frequency standard
Čemusová, Blanka
The paper describes the position of the National Time and Frequency Standard within the Czech Metrology System.

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