SASO NMCC Research Articles

EURAMET.T-K.7 Comparison : Inter-laboratory comparison of triple point of water cells

Main textThe purpose of this comparison was to compare the results of the participating laboratories at the triple point of water temperature (TPW) and assess the uncertainty on the practical realization of triple point of water temperature by the participant laboratories and also to support the Calibration and Measurement Capabilities (CMC) entries of the participating laboratories for this fixed point. This comparison was initiated as a EURAMET project with project number 1357. Initially, the participants of the comparison included the Metrology Institutes of Albania (DPM), F.Y.R Macedonia (BOM), Montenegro (MBM) and Serbia (DMDM). But at the later stages of the comparison, these countries understandably chose to leave the comparison instead of repeating the measurements due to an unexpected problem. On the other hand, participants from GULFMET organization, Emirates Metrology Institute (EMI) and National Measurement and Calibration Center at Saudi Standards, Metrology and Quality Organization of the Kingdom of Saudi Arabia (SASO NMCC) and also Jordan National Metrology Institute (JNMI) were included in the comparison after having approvals of each participating laboratory. Then the comparison was registered as Key Comparison with the name EURAMET.T-K7-4 in BIPM KCDB. Finally, two loops was combined together and five institutes performed the comparison with the single circulating TPW Cell. This report presents the results of the TPW comparison and gives detailed information about the measurements made at TUBİTAK UME and participating laboratories.To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/.The final report has been peer-reviewed and approved for publication by the CCT, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

Supplementary pressure comparison from 10 MPa to 100 MPa in hydraulic media at gauge mode

The regional supplementary comparison EURAMET.M.P-S13 for pressure measurements in liquid media from 10 MPa to 100 MPa was piloted by the TÜBİTAK UME Pressure Laboratory, Turkey. The transfer standard was a digital pressure gauge, serial number 116321, manufactured by Paroscientific Inc. Eighteen laboratories participated in this comparison. Fourteen laboratories are from EURAMET region; namely UME, MKEH, BoM, DPM, DMDM, MBM, GUM, IMT, HMI/FSB-LPM, VSL, VTT MIKES, FORCE Technology, IMBIH, NSAI NML. VMC is from COOMET and QAF, EMI, SASO NMCC are from GULFMET region.Main textTo reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.The final report has been peer-reviewed and approved for publication by the CCM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

Comparison on calibration factor measurement of power sensor

This comparison covers the measurement of calibration factors (CF) of power sensors and was carried out where SASO NMCC and TUBITAK UME participated, on the frame of GULFMET.Calibration factors are used for characterization of RF power sensors. RF power sensors are used to measure RF power, and is an important mean to achieve traceability of RF power measurements. This bilateral comparison was performed by measuring a power sensor at frequencies of 10 MHz, 50 MHz, 1 GHz, 4 GHz, 8 GHz, 12 GHz, 15 GHz, and 18 GHz, at a power level of 0 dBm.TÜBİTAK UME was acting as the pilot laboratory. The travelling standard was provided by SASO NMCC. TUBITAK UME was responsible for monitoring standard performance during the circulation and the evaluation and reporting of the comparison results.The comparison was carried out in accordance with the CCEM Guidelines for Planning, Organizing, Conducting and Reporting Key, Supplementary and Pilot Comparisons.Main textTo reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.The final report has been peer-reviewed and approved for publication by the CCEM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

GULFMET M.M-S2: Bilateral Comparison of Mass Standards Between TÜBİTAK UME and SASO NMCC

Bilateral comparison of mass standards of 5 mg, 2 g, 50 g, 1 kg and 2 kg was carried out in 2017 between TÜBİTAK UME and SASO NMCC. TÜBİTAK UME was the pilot laboratory and the transfer standards were provided by TÜBİTAK UME. For all mass standards, the results show adequate agreement between the laboratories except 1 kg and 2 g.KEY WORDS FOR SEARCHbilateral comparison, mass value, mass standard and mass stabilityMain textTo reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.The final report has been peer-reviewed and approved for publication by the CCM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

Bilateral comparison on time differences between two pulses between TÜBİTAK UME and SASO NMCC (GULFMET.TF-S1)

In this bilateral comparison the pre-defined time intervals between two pulses have been measured by using both the high speed oscilloscope and the time interval counter. The pulses used in the measurements have been generated by a modified delay generator which is commercially available.KEY WORDS FOR SEARCHTime interval measurement, time interval comparison, delay generatorMain textTo reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.The final report has been peer-reviewed and approved for publication by the CCTF, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

Comparison on Force Standard Machines between TÜBİTAK UME and SASO NMCC

Bilateral Comparison on dead weight Force Standard Machines using calibration of force proving instrument was carried out between National Metrology Institute of Turkey (TÜBİTAK UME) and National Measurement and Calibration Center at Saudi Standards, Metrology and Quality Organization of the Kingdom of Saudi Arabia (SASO NMCC). In this comparison, TÜBİTAK UME was pilot laboratory and supplied the travelling standard with force transducers. The bilateral comparison is performed by measuring force values taken from force standard machines located in TUBİTAK UME and SASO NMCC. Three different capacities force transducers were determined for this comparison in prepared technical protocol. The comparison was published BIMP database on GULFMET.M.F-S2 code. The comparison was used in project UME-KV-D3-2.10.6.b code. Each participant used their own measurement standards and applied the direct comparison transfer method at comparison. There is a good agreement between TÜBİTAK UME and SASO NMCC results.

AC Power at Power Frequencies: Bilateral comparison between SASO NMCC and TÜBİTAK UME

A supplementary bilateral comparison measurement on AC Power at 50/60 Hz between SASO NMCC (GULFMET) and TÜBİTAK UME (EURAMET) was performed with the primary power standards of each partner. Measurement methods and setups which are very similar of the participants, measurement results, calculation of differences in the results, evaluation of uncertainties are given within this report.Main textTo reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.The final report has been peer-reviewed and approved for publication by the CCEM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

Bilateral comparison on electric field measurements between TÜBİTAK UME and SASO NMCC

Electromagnetic (EM) probes are widely utilized in the measurement of EM fields for non-ionizing radiation, electromagnetic compatibility (EMC) testing and other applications in the frequency range 5 Hz–60 GHz. They must be calibrated by National Metrology Institutes (NMIs) or accredited calibration laboratories in accordance with international standards such as IEEE 1309. The existing NMIs or emerging NMIs should refer to the international comparison measurements in order to assure the quality of their measurement results. Therefore, the electric field comparison measurements organized by TUBITAK UME were performed between TUBITAK UME and SASO NMCC at the 100 Hz, 1 kHz, 10 MHz, 100 MHz, 1 GHz, 10 GHz and 18 GHz frequencies in order to obtain the correction factors of the electric field probes. The comparison measurements were carried out in accordance with the Technical Protocol prepared by TUBITAK UME. The measurements started in October 2017 and were completed in January 2017. There was good agreement found for the correction factors.Main textTo reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.The final report has been peer-reviewed and approved for publication by the CCEM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).