The second is one of the fundamental units of measurement and very important in measurement results, but just as important is the use of universal coordinated time (UTC), which allows people and systems to work together.
Innovation also requires improvement in the metrology of time, VSL is therefore involved in the development of an optical clock and has a very long history in the validation of technologies such as white rabbit, for accurate time distribution.
VSL provides the most accurate calibrations in terms of time and frequency that can be traced directly back to the national time standard. The scope of VSL ranges from frequency measurements with an uncertainty of 0.000 000 000 000 2 Hz/Hz to stopwatch calibrations with an uncertainty of 0.014 seconds per day.
VSL supports its clients in the management of time-dependent measurement data with various calibration facilities. By calibrating frequency standards, atomic clocks and speedometers, for example, we offer traceability to the second and UTC(VSL).
VSL has steered the development of Two Way Satellite Time and Frequency Transfer (TWSTFT) in the 1980s. This method is the most accurate check done between UTC contributions around the world. VSL, in collaboration with a technology partner, has also taken on the task of calibrating European contributions to UTC using this technology.
Our experts are happy to help.
Michel Brakel
Sales Engineer
VSL provides a periodic time service bulletin. This weekly report with information about the time and phase difference with the national time standard UTC of signals has been measured, allows you to manage your atomic clock to keep track of your internal time standard.
VSL provides a periodic time service bulletin. This weekly report with information about the time and phase difference with the national time standard UTC of signals has been measured, allows you to manage your atomic clock to keep track of your internal time standard.
For resilience of your time system, VSL has developed a resilience consultation. In collaboration with a team of your network specialists, we test the current approach and advise on areas for improvement.
For resilience of your time system, VSL has developed a resilience consultation. In collaboration with a team of your network specialists, we test the current approach and advise on areas for improvement.
Read more about this on our page on Proficiency Tests
The distribution of time is an important aspect of the management of Dutch time. The VSL has a wide range of options for you to use UTC(VSL) as a source for your ICT system.
The Dutch government enables VSL to provide direct access to Dutch Time via the internet. This allows you to access our NTP server free of charge. We offer additional services to this public service.
The Precision Time Protocol is the time synchronization system used in networks and situations where more accuracy and reliability is required for traceable UTC.
The Precision Time Protocol is the time synchronization system used in networks and situations where more accuracy and reliability is required for traceable UTC.
For research and development, SURF manages a fibre-optic network on which extremely accurate distribution of time is achieved using the White Rabbit protocol. For commercial applications, an infrastructure has been built that enables you to use this precise technology for your application.
