E1.3 Studies on the Use of Bandgap References as a Voltage Standard
- SMSI 2020
(did not take place because of Covid-19 virus pandemic)
- SMSI 2020 - System of Units and Metrological Infrastructure
- E1 Traditional and Quantum-based Measurement Standards
- B. Schumacher, C. Rohrig - Physikalisch-Technische Bundesanstalt, Braunschweig (Germany), G. Weckwerth - wekomm engineering GmbH, Planegg (Germany)
- 358 - 359
The high precision of electrical direct current measurement technology is based on the traceability of the measured quantities to quantum standards, which are typically used in national metrology institutes such as the PTB. When calibrating voltage standards, the uncertainty of the transfer is limited by the inherent noise of the Zener diode used as transfer standard, which is based on an avalanche effect in a p-n transition. This noise is in the order of a few 100 nV. At PTB, studies were carried out to generate reference voltages by using alternative effects.