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วารสาร Metrology Info ปีที่12 ฉบับที่57 ประจำเดือน กรกฎาคม-สิงหาคม 2553
1) The document discusses upcoming events related to metrology, including World Metrology Day on May 20th and the 26th APMP General Assembly and Related Meetings in 2010. 2) It provides information on the use of FM/RDS receivers to receive time signals and synchronize clocks. Diagrams illustrate the system components and data transmission. 3) Results are presented from a key comparison project involving carbon monoxide in nitrogen mixtures, showing degrees of equivalence between the National Institute of Metrology (Thailand) and other national metrology institutes.
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วารสาร Metrology Info ปีที่12 ฉบับที่57 ประจำเดือน กรกฎาคม-สิงหาคม 2553
- 2. 4 WORLD ÇѹÁÒµÃÇÔ·ÂÒâÅ¡ : World Metrology Day ÊÒúÑÞ 8 SPECIAL ·í Ò Í‹ Ò §äÃãËŒ à »š ¹ ·Õè à ª×è Í ¶× Í ä´Œ Content 12 NIMT ¡Òö‹ Ò Â·Í´àÇÅÒÁҵðҹ ¼‹ Ò ¹Ãкº FM/RDS 19 METROLOGY »ÃÐÁÇÅÀÒ¾¡Ô ¨ ¡ÃÃÁ 20 NIMT NIMT 24 26 th APMP General Assembly and Related Meetings 2010 IMEKO 2010 : TC3, TC5 and TC22 Conferences 2 Vol.12 No.57 July-August 2010
- 3. EDITOR'S th Advisors AVM Pian TOTARONG, Somsak CHARKKIAN, Maj. Gen. Chainarong CHERDCHU, Veera TULASOMBAT, Ajchara CHAROENSOOK, Gp. Capt. Piya BHUSAKAEW, Prawet MAHARATTANASAKUL, Virat PLANGSANGMAS, Flt.Lt. Tawat CHANGPAN, Somchai NUAMSETTEE, Maj. Arkom KRACHANGMOL, Dongkamol VIROONUDOMPHOL, Nattanit PONGIJEERAKUMCHORN Editor Prasit BUBPAWANNA Assistant Editors Janwalee DANTANASAKORN, Watchareeporn KLINKHACHORN Publisher Public Relations Section, Policy and Strategy Department, National Institute of Metrology (Thailand), Ministry of Science and Technology 3/4–5 Moo 3, Klong 5, Klong Luang, Pathumthani 12120, Thailand Tel: 0 2577 5100 Fax: 0 2577 2877, 0 2577 2859 E-mail: nimt@nimt.or.th Website: http://www.nint.or.th 3 Vol.12 No.57 July-August 2010
- 4. WORLD ʶҺѹÁÒµÃÇÔ·ÂÒáË‹§ªÒµÔ 4 Vol.12 No.57 July-August 2010
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- 8. SPECIAL 8 Vol.12 No.56 May-June 2010
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- 12. NIMT ¡Òö‹Ò·ʹàÇÅÒÁҵðҹ¼‹Ò¹Ãкº FM/RDS 12 Vol.12 No.57 July-August 2010
- 13. eo Ntwrk Time Protocol RDS G roup 4 A P GS Receiver RDS Ecoder n c x Eiter L-R Stereo Signal roadcast Station B 5 .MH 2 0 RTAF 1 z FM/RDS roadcast Sytem B s Antena Signal Processing Module L-R Stereo Signal Amp/Speaker Digital Signal Processing Module Micro-Controller CT Clock Data Module Time Code FM/RDS Receiver 13 Vol.12 No.57 July-August 2010
- 14. Modified Julian Daycode UTC B0TP Spare bits (5 decimal digits) Hour Minute Local time offset + PTY + + + 0 0 0 0 2 2 2 20 2 2 22 2 20 25 2 2 22 2 20 + 2 2 22 2 20 Modified Julian Day code Hour code Sense of local time offset 0= +, 1= - 14 Vol.12 No.57 July-August 2010
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- 19. NIMT »ÃÐÁÇÅÀÒ¾ 19 Vol.12 No.57 July-August 2010
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- 21. Degrees of equlvalence(%) -3 -2 -1 0 1 2 3 4 NMU NMISA UBA (D) VNIIM SMU NPL CERI BAM CEM CENAM GUM INMETRO IPQ Laboratory JRC KRISS CCQM-K51 Carbon monoxide in nitrogen LNE METAS NIM NIMT NIST VSL NPLI FMI NMIA Vol.12 No.57 Jury-August 2010 21
- 22. (k=2) 22 Vol.12 No.57 July-August 2010
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