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The coolest spot in Glasnevin!

NML recently performed a primary realisation of the voltage unit using a Josephson Array Voltage Standard. This is a cryogenic standard requiring a temperature just a few degrees above absolute zero. The photo shows Stephen Duffy of NML transferring liquid helium from the transfer Dewar to the working Dewar which will house the Josephson array.

The realisation of a voltage unit means creating a highly accurate and consistent standard for measuring electrical voltage. National bodies, like the National Standards Authority of Ireland (NSAI) National Metrology Laboratory, establish these precise measurements to ensure that every voltage measurement in the country is based on the same reliable reference. This helps maintain consistency and reliability in various fields such as science, industry, and commerce.

This measurement standard is important for legal purposes, trade, health, safety, and environmental protection. It also supports technological progress and innovation by providing a reliable reference for research and quality assurance. By setting and maintaining this standard, the NSAI helps Ireland comply with international measurement agreements, making it easier for the country to engage in global trade and cooperation.

It is also essential for businesses in Ireland, especially those in fields that require precise electrical measurements, like manufacturing, healthcare, and tech industries. Accurate voltage measurements are necessary for developing products, quality control, and meeting industry standards. For example, in the electronics industry, components must work within specific voltage limits to be safe and effective. Access to a trusted national voltage standard allows businesses to calibrate their equipment correctly, ensuring their products are reliable and competitive in the global market.