assoc prof dr mohammed helmy abd el raouf
play

Assoc. Prof. Dr. Mohammed Helmy Abd El-Raouf Head of Electrical - PowerPoint PPT Presentation

CCEM/17-13 Assoc. Prof. Dr. Mohammed Helmy Abd El-Raouf Head of Electrical Quantities Metrology Department National Institute of Standards (NIS), Egypt Vice Chair of AFRIMETS TCEM mohammed_makka@yahoo.com, mohammed_makka@nis.sci.eg 30th


  1. CCEM/17-13 Assoc. Prof. Dr. Mohammed Helmy Abd El-Raouf Head of Electrical Quantities Metrology Department National Institute of Standards (NIS), Egypt Vice Chair of AFRIMETS TCEM mohammed_makka@yahoo.com, mohammed_makka@nis.sci.eg 30th meeting of the CCEM NIS Activities in the Field of Electricity and Magnetism 1 BIPM 22 and 24 March 2017

  2. 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 2 BIPM 22 and 24 March 2017

  3. Twinning project with 5 European NIS moves to dedicated Union campus in Haram, Giza Metrology begins Laboratories in Egypt. The Royal 2016 Egyptian Cubit 2020 1992 1999 2700BC 1963 NIS intends to become the NIS is leading NMI NIS signs Mutual Founded serving the Recognition Arab World Agreement

  4. • Establish, maintain and disseminate the SI units • Research and develop new and improved measurement procedures. • Provide calibration, training and consulting services.

  5. BIPM AFRIMET EURAMET GULFMET APMP NIS Egyptian EOS Q I Essay & Weights System ISO OIML EJAC ILAC 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 5 BIPM 22 and 24 March 2017

  6. Quality System Consulting Calibration & Testing Training Services Proficiency Testing Reference Materials

  7. NIS serves clients in all major Industrial sectors and in many Government Organizations in Egypt and throughout the The staff of NIS Arab and African would be World honored to serve YOU

  8. Ministry of Higher Education & Scientific Research Management Board NIS Office of Center of Independent Admin Administration Financial Managements President International Technical Security Conferences Information Technical of legal research and Planning and Affairs office of and scientific technology Units department managerial affairs Administration funding department office planning publishing (IT Center) department Vice Vice Unit of Center of Quality Unit of President President Proficiency System manufacturing Committee of testing Consulting Department For For lab. devices Committee of Construction of external Scientific leadership Technical and training selection Affairs Affairs Supervision Committee of Technical Office of Committee of Promotion Office of Scientific post graduate Secretary Research scientific Calibration relations and research Inventory Employment Administration Financial Engineering General Division awards department affairs affairs affairs affairs Division of Chemical Division of Division of Electrical Division of Thermometry Division of Length Division of Mass & & Ionizing Dosimeter Metrology Photometry and Metrology Metrology & Precision Force Metrology Metrology Radiometry Metrology Engineering Electrical Quantities Primary Length Standard Mass, Density & Reference Materials Thermal Metrology Photometry Lab. Metrology Lab. Pressure Lab. Lab. & Laser Technology Lab. Lab. Time & Frequency & Volume & Fluid Flow Ionizing Radiation & Textile Metrology Lab. Radiometry Lab. Microwave Metrology Radioactive Materials Metrology Lab. Line & End Secondary Lab. Lab. Standards Lab. Force & Material Fire & Explosion High Voltage Metrology Metrology Lab. Protection Lab. Lab. Engineering & Surface Metrology Lab. Polymer Metrology & Ultrasonic Lab. Technology Lab. Acoustics Lab. 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 8 BIPM 22 and 24 March 2017

  9. NIS has 6 scientific divisions with 21 laboratories.

  10. 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 10 BIPM 22 and 24 March 2017

  11. Primary Standard Josephson Array Voltage Standard Since 2009, the laboratory had the Josephson Array Voltage Standard (JAVS). Range: -10 V to +10 V 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 11 BIPM 22 and 24 March 2017

  12. Secondary Voltage Standard The unit of voltage is maintained via 13 Zener diode reference standards as Secondary Standards with 10 V and 1.018 V outputs. Zeners are Calibrated using JAVS. Exp. Uncer. = 0.03 µV/V to 0.2 µV/V 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 12 BIPM 22 and 24 March 2017

  13. In 2014, NIS participated in BIPM.EM-K11.a and b. comparisons. The final report is already published (Link) Comparison of 1.018 V and 10 V DC Voltage References Quantity Instrument or Method of Min. Max. Units Coverage Level of value Units Value Artifact Measurement value Factor Confidence DC Direct voltage DC solid state Comparison sources: voltage with primary 1.018 10 V 0.03 to 0.2 µ V/V 2 95% single standard standard values (JVS) 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 13 BIPM 22 and 24 March 2017

  14. NIS participated in EUROMET.EM-S24 comparison. The final report is already published (Link) Comparison of ultra-low DC current sources Instrument or Method of Min. Max. Units Coverage Level of Quantity value Units Value Artifact Measurement value Factor Confidence Current Generator: current Standard generated by Capacitor , charging or DC current Voltage discharging a sources: low -1E-13 1E-10 A 0.03 to 0.2 µ V/V 2 95% Source , High gas-filled values Resistance capacitor With Standard Software Controlled for Nonlinearity Compensation 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 14 BIPM 22 and 24 March 2017

  15. The unit of resistance is maintained by mean of five “One Ohm” Thomas type standard resistors traceable to the SI units by calibrating them periodically against the Quantum Hall resistance standards at the BIPM. Exp. Uncer. = 0.2 µ Ω / Ω 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 15 BIPM 22 and 24 March 2017

  16. There are also two 10 kΩ and two 100 Ω standard resistors, traceable to BIPM, Exp. Uncer. (100 Ω ) = 0.3 µ Ω / Ω Exp. Uncer. (10 k Ω ) = 0.3 µ Ω / Ω Range from 100 k Ω to 100 M Ω . Exp. Uncer. = 4 µ Ω / Ω : 761 µ Ω / Ω 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 16 BIPM 22 and 24 March 2017

  17. Automated Resistance Bridge Model 6010C is a fully automated resistance ratio bridge based on the Direct-Current- Comparator (DCC) principle. Manufacturer Specifications: Range: 0.001 Ohm to 10 kOhm Accuracy: < 5 ppm to < 0.05 ppm 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 17 BIPM 22 and 24 March 2017

  18. NIS participated in EURAMET- EM-k2.1 comparison. The final report is already published (Link), and the related CMC’s are also published at the BIPM data base (Link) Comparison of Resistance Standards at 10 M Ω and 1 G Ω Values: (100 k Ω to 1 M Ω ) and (10 M Ω to 100 M Ω ) Instrument Method of Min. Max. Units Coverage Level of Quantity value Units Value or Artifact Measurement value Factor Confidence DC resistance Fixed Potentiometric standards 1E+07 1E+08 Ω 94 to 760 μΩ/Ω 2 95% resistor ratio bridge and sources: high values DC resistance standards Fixed Potentiometric Ω μΩ/Ω 1E+05 1E+06 4 to 41 2 95% and sources: resistor ratio bridge Intermediate values 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 18 BIPM 22 and 24 March 2017

  19. Fused Silica Standard Capacitors, 2 Sets The unit of Capacitance is maintained by 2 Sets of Fused Silica Standard Capacitors that are traceable to the SI units by calibrating them at the BIPM. Values: 1 pF, 10 pF and 100 pF. Exp. Uncer. = 0.63 µF/F to 0.70 µF/F 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 19 BIPM 22 and 24 March 2017

  20. Standard Air Capacitors There are different values of General Radio and ietLab Air Capacitance standards, with values: 1 pF to 10 µF. Expanded Uncertainty = 0.8 µF/F : 3.5 µF/F 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 20 BIPM 22 and 24 March 2017

  21. There are different types of the inductance standards with different values, 10 µH to 10 H. All of them are traceable to NPL. (NPL) Expanded Uncertainty = 80 µH/H : 310 µH/H 21

  22. AH 2700A Ultra Precision Capacitance Bridge Highly accurate capacitance measurements are carried out using the shown Ultra Precision Capacitance Bridge with (opt. E, opt. C) which is the first copy of this version in the world. Range : 0.8 aF to 1.5 µF 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 22 BIPM 22 and 24 March 2017

  23. E4980A Precision LCR Meter, (Agilent) Measurement Parameters: Impedance parameters |Z|, |Y|, Ls, Lp, Cs, Cp, Rs, Rp, X, G, B, D, Q Manufacturer Specifications: Capacitance: 1.000000 aF to 999.9999 EF Inductance : 1.000000 aH to 999.9999 EH Resistance : 1.000000 a Ω to 999.9999 E Ω @ Frequencies 20 Hz to 2 MHz * a = 10 -18 * E = 10 18 30th meeting of the CCEM, NIS Activities in the Field of Electricity and Magnetism 23 BIPM 22 and 24 March 2017

Download Presentation
Download Policy: The content available on the website is offered to you 'AS IS' for your personal information and use only. It cannot be commercialized, licensed, or distributed on other websites without prior consent from the author. To download a presentation, simply click this link. If you encounter any difficulties during the download process, it's possible that the publisher has removed the file from their server.

Recommend


More recommend