NCSL RISP 1 : 2017
Current
The latest, up-to-date edition.
01-12-2013
Preface
Permission to reproduce
Disclaimer
1 Introduction
2 Principle of the intrinsic standards
2.1 Voltage standards and the Josephson effect
2.2 Array design
3 The Josephson voltage standard system
3.1 Cryogenic system
3.2 Bias system
3.3 Frequency-stabilized microwave source
3.4 Measurement loop
3.5 Computer for system control
3.6 Standards
4 Setup, data acquisition, and data analysis
4.1 Manual or automatic system
4.2 Setup procedures
4.3 Example calibration algorithm
4.4 Calculation of the reference voltage
4.5 Other calibration algorithms
5 Uncertainty
5.1 Zero-offset uncertainty
5.2 Josephson-voltage uncertainty due to frequency
5.3 Uncertainty due to leakage
5.4 Uncertainty due to the device under test
5.5 Example uncertainty for a single measurement
5.6 Calibration reports for Zener reference standards
5.7 Projecting Zener performance between calibrations
6 Quality control
6.1 Check standards
6.2 Uncertainty evaluations
6.3 Comparisons
6.4 Accreditation by peer review
6.5 Operator competence
6.6 System digital voltmeter
6.7 Software
6.8 Daily routine
7 Traceability
7.1 Value of physical constants
7.2 Other standards that feed into the Josephson voltage
standard
8 References
Appendix A Abbreviations and symbols
Appendix B Bibliography
Appendix C Maintenance and troubleshooting
Appendix D Example I-V curves
Appendix E Operator training exercise
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.