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Sigfrido Leschiutta CCTF Chairman

CCTF CONSULTATIVE COMMITTEE FOR TIME AND FREQUENCY REPORT FOR THE XXII CONFÉRENCE GÉNÉRALE DES POIDS ET MESURES Paris, 8-13 October 2003. Sigfrido Leschiutta CCTF Chairman. XXII CGPM CCTF REPORT. • the second frequency standards the hour time scales

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Sigfrido Leschiutta CCTF Chairman

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  1. CCTF CONSULTATIVE COMMITTEE FOR TIME AND FREQUENCY REPORT FOR THE XXII CONFÉRENCE GÉNÉRALE DES POIDS ET MESURES Paris, 8-13 October 2003 Sigfrido Leschiutta CCTF Chairman

  2. XXII CGPM CCTF REPORT • • the second • frequency standards • the hour • time scales • global clock comparisons • how compare the clocks of the NMI’s • clocks and frequency standards • uses in Science and Technology • joint activity CCL-CCTF • toward future secondary optical definition of the second

  3. the best atomic clocks caesium fountains

  4. SYRTE-FO2 FRANCE

  5. NIST-F1 USA

  6. PTB-CSF1 GERMANY

  7. IEN-CSF1 ITALY

  8. 38 countries participating into TAI: Poland Israel Thailand Australia Portugal Spain Austria Norway Hong-Kong China Lithuania U.K. Switzerland Japan Sweden Mexico Romania Slovakia Germany USA India Italy Bulgaria Canada Argentina Singapore Russian Federation Czeck Republic Korea, Rep. of Chinese Taipei Turkey South Africa New Zealand France The Netherlands Belgium Brazil Chile 53 laboratories participating into TAI

  9. XXII CGPM CCTF REPORT • • clocks and frequency standards • uses in Science and Technology • fundamental research and fundamental constants • metrological applications, outside time • telecommunications • satellite navigation systems

  10. XXII CGPM CCTF REPORT

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