Welcome

Refine search results

All    Any    Exact phrase

Search hint

All - search for events containing all entered keywords

Any - search for events containing any, some, or all of the entered keywords

Exact phrase - search for events where keywords appear exactly as entered

Dates

to

Region

Distance


Within of post code (UK Only)

Login for more refinement options

Timekeeping today – from stars to atoms

Lecture

Image of three blue heads in profile on grey background

Teddington Evening Lecture: This talk will describe the transformation in timekeeping over the last several decades, and explain how the international time scale is constructed and maintained by a network of timing centres including NPL.

Date and Time

06 December 2017 - 19:15-21:30

Location

London, United Kingdom - icon_popup  (See map)

Organiser

Organised by the UK - London local network.


About this event

For centuries timekeeping was the preserve of astronomers. The fundamental unit of time measurement was the day, sub-divided by clocks for everyday use into hours, minutes and seconds. This situation changed fundamentally in 1955 when the first Caesium atomic clock was brought into operation at NPL, opening up the prospect of an entirely new way of measuring time that was no longer dependent on the fluctuating rotation of the Earth.

Today, timekeeping is coordinated globally, and the precise timing provided by atomic clocks underpins applications from telecommunications to satellite navigation. This talk will describe the transformation in timekeeping over the last several decades, and explain how the international time scale is constructed and maintained by a network of timing centres including NPL.

About the speaker

Peter Whibberley is a Senior Research Scientist in the Time and Frequency group at the National Physical Laboratory (NPL), where he is the lead scientist for the UK time scale, time transfer links to other national timing centres, and the time dissemination services.
 
After moving into time and frequency metrology in 1990, Peter was part of a small team that constructed a prototype Caesium fountain primary frequency standard at NPL. Since 2000, he has been responsible for the operation and development of the UTC(NPL) time scale, including the two-way satellite time transfer and GPS time and frequency transfer systems. Peter’s research interests in recent years have included the development of methods for time transfer over optical fibre links, and he has been closely involved in establishing the NPLTime® service for disseminating time over fibre to the financial sector.

Peter has represented NPL on a number of international commit­tees, not least supporting the UK policy on leap seconds at the International Telecommunication Union and he is currently Chair of the Technical Committee for Time and Frequency within EURAMET, the Euro­pean Association of national metrology institutes.

Programme

Evening Lecture: 19:15 for 19:30 start


Register

Are you looking for more events?

You might also be interested in (search more events)

Icon image of speech bubbles

Conference - Mon 4 December 2017 to Tue 5 December 2017

Following from the success of ISP 2013 & 2015, the conference presents a new opportunity for you to exchange and share your latest work in Intelligent Signal Processing with leading academic and industrial engineers and researchers.