Environmental sensitivities of cavity-tuned hydrogen masers
- 23 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 273-279
- https://doi.org/10.1109/freq.1997.638559
Abstract
With the increasing number of cavity-tuned hydrogen masers in use around the world in time scales and as reference oscillators for primary frequency standards, it is necessary to have a complete understanding of the environmental sensitivities of the masers. Common-mode frequency fluctuations are of great concern and the degradation of maser frequency stability due to environmental fluctuations should be minimized. Measurements of environmental sensitivities (temperature, relative humidity, atmospheric pressure, line voltage and magnetic field) have demonstrated that the frequency stability of cavity-tuned hydrogen masers is not significantly degraded if the masers are contained in a reasonably controlled environment.Keywords
This publication has 4 references indexed in Scilit:
- Recent improvements in the performance of the NIST AT1 time scalePublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Barometric pressure-induced frequency offsets in hydrogen masersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Impact of new clock technologies on the stability and accuracy of the International Atomic Time TAIIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1997
- The accuracy evaluation of NIST-7IEEE Transactions on Instrumentation and Measurement, 1995