A complete primary voltage calibration system is required, utilizing a Josephson array quantum standard, that operates without liquid helium and provides SI traceable DC voltages up to 10 V, software for automation, and AC voltage generation capabilities.
Cryogen Free JJ Volt System. 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 you fill first need to be registered on the tendering system. Please use the following URL: https://lupc.bravosolution.co.uk/web/login.shtml (from where you can register if not already registered) and search for ‘ITT: itt_2533 - ITT_123111 - Cryogen Free Josephson Junction (JJ) Voltage System’
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 you fill first need to be registered on the tendering system. Please use the following URL: https://lupc.bravosolution.co.uk/web/login.shtml (from where you can register if not already registered) and search for ‘ITT: itt_2533 - ITT_123111 - Cryogen Free Josephson Junction (JJ) Voltage System’