| Numéro |
J. Phys. Colloques
Volume 42, Numéro C8, Décembre 1981
Troisième Symposium sur les Etalons de Fréquence et la Métrologie / Third Symposium on Frequency Standards and Metrology
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|---|---|---|
| Page(s) | C8-229 - C8-231 | |
| DOI | https://doi.org/10.1051/jphyscol:1981827 | |
Troisième Symposium sur les Etalons de Fréquence et la Métrologie / Third Symposium on Frequency Standards and Metrology
J. Phys. Colloques 42 (1981) C8-229-C8-231
DOI: 10.1051/jphyscol:1981827
Physikalisch-Technische Bundesanstalt, Braunschweig, F.R.G.
J. Phys. Colloques 42 (1981) C8-229-C8-231
DOI: 10.1051/jphyscol:1981827
DEVELOPMENT AND PERFORMANCE OF PRIMARY STANDARDS AT THE PTB
K. DorenwendtPhysikalisch-Technische Bundesanstalt, Braunschweig, F.R.G.
Abstract
This article compares the main characteristics of the primary Cs-beam time and frequency standard CS1 in PTB with corresponding standards at the NBS (USA) and NRC (Canada). Some unnormal changes in the performance of CS1 during the last year are reported. The concept of new standards at PTB is outlined.