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 […]
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