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NP
ClosedCF · 64a33177886d

ITT_123111 - Cryogen Free Josephson Junction (JJ) Voltage System

National Physical Laboratory
Status
Closed
Estimated
—
Published
27 Jan 2025

Key facts

Notice ID
cf-83d52815-1cc4-4313-bf1b-64a33177886d
CPV code
38000000 · Laboratory equipment
Source
Contracts Finder

Timeline

  1. Published
    27 Jan 2025

Description

The National Physical Laboratory (NPL) requirement is for a complete primary voltage calibration system built around a Josephson array quantum standard. The purpose is to move away from the current generation of standards that use liquid helium to cool the sample to one that is liquid cryogen-free with the aim that no liquid helium should be required for either cool-down or routine operation, and hence the system should be capable of continuous operation for periods of at least several months. The system should be capable of providing: SI traceable DC voltages up to 10 V, with an uncertainty better than 1 nV/V. software to run the system and automate the calibration of standards. the capability to generate AC voltages up to a few kHz. To express interest in this tender please use the following URL: https://lupc.bravosolution.co.uk/web/login.shtml and search for 'ITT: itt_2533 - ITT_123111 - Cryogen Free Josephson Junction (JJ) Voltage System'

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