Dr Peter Thompson, CEO at the National Physical Laboratory (NPL), delivered a speech on the importance of international collaboration in addressing global pollution during a signing ceremony of a Memorandum of Understanding (MoU) Addendum, with […]
Versailles, France—A convocation of delegates representing 60 countries voted today in Versailles to implement the most significant change to the International System of Units (SI) in more than 130 years. For the first time, all […]
PTBnews 3.2018 – PTB is developing a measuring system based on pulse-driven Josephson voltage standards. This system is designed to allow alternating voltages to be measured with great accuracy at frequencies of up to 100 […]
PTBnews 3.2018 – A novel measurement setup has been developed at PTB for the primary calibration of ultrasonic hydrophones. Hydrophones are sensors used to determine ultrasonic pressure wave in liquid media. They are mainly used […]
October 19, 2018 Many semiconductor fabricators and research labs are under increasing pressure from, of all things, vacuum. These facilities need to remove greater amounts of gas molecules and particles from their setups as new […]
The Kibble balance is an apparatus that will be used to realise the kilogram after its redefinition in May 2019 based on a fundamental constant – the Planck constant. It compares the gravitational force on […]
PTB-News 2.2018 – The reliable measurement of dynamic forces plays an important role in industry. To provide the metrological infrastructure required, PTB has been pursuing an approach that describes the dynamic behavior of the force […]
PTB-News 2.2018 – Conventional calibration certificates could soon become history. To furnish proof that a measuring instrument has been calibrated and of how this has been done, metrology institutes throughout the world could, in the […]
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