National Physical Laboratory

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  • Three days of events following a long tradition of UKAS and joint NPL-UKAS meetings, offering a forum for experts to share information on measurement and accreditation, focusing this year on: air temperature metrology; electrical, physical and thermal measurements; and a training day for active UKAS assessors.
  • Monitoring Ambient Air 2014 is organised by the Automation and Analytical Management Group of the Royal Society of Chemistry.
  • A two day training course on uncertainty analysis for earth observation measurements, with particular emphasis on the calibration and characterisation of remote sensing radiometric instruments: both pre-flight satellite instruments and for ground validation instrumentation.

Image gallery

  • Differential Scanning Calorimetry (DSC) measures the temperatures and heat flow in materials as a function of time and temperature, providing information about physical and chemical changes that involve a change in heat capacity or external temperature.
  • The electromagnetic anechoic chamber is used to calibrate antennas at frequencies up to 18GHz. The room is specially designed to absorb any and all electromagnetic waves, allowing precise measurements to be made without interference.
  • The NPL apparatus for single molecule imaging. By using three lasers (red, green and blue) we can use three different colours of fluorescence, enabling us to monitor up to three different types of molecule in the same experiment.
  • A polyurethane tile developed as an acoustic absorber for sonar frequency water tanks. The tile, developed through proof-of-concept funding, has properties which make it very absorbing and minimally reflective to water-borne sound above a frequency of 20 kHz.
  • This strontium end cap ion trap could redefine the way that the world measures the second. Current time measurements are made using caesium fountain clocks, but the team working on the ion trap clocks estimate that they could measure time up to 1000 times more accurately.
  • The UV Dosimeter, created by scientists at NPL, helps to minimise the risk of ultraviolet treatment by measuring the dose given as accurately as possible. UV treatment is used for skin conditions such as psoriasis and eczema.
  • NPL Corporate Plan 2014 - 2018

    The Corporate Plan outlines the challenging goals we have set for the next five years to ensure we continue to provide the measurement capability that underpins the UK's prosperity and quality of life...

  • ETV explained

    Watch a short film explaining the basics of the EU Environmental Technology Verification (ETV) scheme...

    Find out more about ETV

  • Measurement makes the difference at Cascade Technologies

    NPL features heavily in the story of Cascade Technologies, a university spin-out company specialising in laser-based devices for measuring industrial gases...

  • Knighthood for Professor Pethica

    Professor John Pethica FRS FREng, Chief Scientific Adviser at NPL, has been knighted in the Queen's Birthday Honours list 2014 for services to science...


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