Published December 2008
| Version v1
Journal article
The generation of new TA(NIM), which is steered by a NIM4 caesium fountain clock
Creators
- 1. National Institute of Metrology (NIM), Beijing, People's Republic (China)
Description
TA(NIM) is being updated now. The new TA(NIM) uses an active hydrogen maser as a reference clock, and the frequency of TA(NIM) is steered by an algorithm to keep it the same as the NIM4 fountain clock, which is NIM's primary frequency standard. This paper introduces the generation of new TA(NIM), including the equations to predict maser frequency and the steering algorithm. The time difference and the frequency difference between the new TA(NIM) and UTC are also reported. (authors)
Availability note (English)
Available from doi:Additional details
Identifiers
Publishing Information
- Journal Title
- Metrologia
- Journal Volume
- 45
- Journal Issue
- no.6
- Journal Page Range
- p. S34-S37
- ISSN
- 0026-1394
- CODEN
- MTRGAU
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 40029411
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- ATOMIC CLOCKS; CALIBRATION STANDARDS; CESIUM; FREQUENCY MEASUREMENT; HYDROGEN; MASERS; SIMULATION; TIME MEASUREMENT
- Descriptors DEC
- ALKALI METALS; AMPLIFIERS; ELECTRONIC EQUIPMENT; ELEMENTS; EQUIPMENT; METALS; MICROWAVE AMPLIFIERS; MICROWAVE EQUIPMENT; NONMETALS; STANDARDS
Optional Information
- Notes
- 4 refs.