Архіви

Водневі зберігачі частоти, відновлення та продовження терміну використання магніторозрядних насосів

Анотація Розглянуто практичні аспекти технічного догляду, обслуговування та продовження терміну використання одного із ключових елементів водневого зберігача частоти, міри Ч1-70, у складі якої використовуються магніторозрядні іонно-гетерні насоси, та заходи щодо підтримання його метрологічних характеристик на високому рівні. Під час використання квантових генераторів виникає потреба в складному обслуговуванні одного із ключових елементів водневого зберігача – магніторозрядного […]

A Low-Cost Time Transfer Receiverfor Contributions to CoordinatedUniversal Time

This paper describes a low-cost time transfer receiver that allows timing laboratories, including national metrology institutes and otherdesignated institutions, to contribute data to the computation of Coordinated Universal Time (UTC). The time transfer receivercompares a laboratory’s local realization of UTC, to signals broadcast by Global Positioning System (GPS) satellites. It stores themeasurement results in a […]

CGGTTS-Version 2E :

CGGTTS-Version 2E :an extended standard for GNSS Time Transfer AbstractThe standard for GNSS time transfer was first defined in 1984, associated to the use of GPSsignals, which were at that time degraded by the Selective Availability. It was updated at a fewinstances to follow the evolution of GPS, of the receivers, and the inclusion of […]

Precise Time Transfer Concepts

PRECISE TIME TRANSFERPrecise time and time synchronization are vital for military systems (e.g. tactical communications, navigationsystems, weapon-controlled and target tracking/identification systems) to ensure accurate data processingand meaningful, reliable information transmission and reception. It is because mission-critical strikes anddecisions are required to be executed and made in a timely manner to maximize “red-force” loss andminimize “blue-force” […]

The Service of Universal Time and ReferenceFrequencies of Ukraine. Time synchronization withthe use of the Internet NTP and PTP: state anddevelopment prospects

V. SoldatovNational Scientific Centre “Institute of Metrology”, Myronosytska Str., 42, Kharkiv, 61002, Ukrainetime.metrology@ukr.netAbstractThe article deals with the issues of time synchronization using the Internet protocols NTP and PTP. These issuesare considered as an example of the state of affairs and the prospects of development of the Service of Universal Timeand Reference Frequencies (hereinafter referred to […]

Fractal Simulator Fractal Simulator Fractal: Sierpinski TriangleKoch CurveCesaro Fractal Depth: 5 Speed (ms): Generate Formula will appear here…

HYDROGEN FREQUENCY STORAGE, RESTORATION AND EXTENDING THE LIFE OF THE MAGNETIC DISCHARGE PUMP

Aspects of functioning, National (state primary) standard of units of time and frequency, further NDETU TF-01-2021 and maintenance of metrological characteristics at the appropriate level are considered. For the purpose of proper functioning, the National (state primary) standard of units of time and frequency, further NDETU TF-01-2021 maintaining metrological characteristics at the appropriate level, the […]