Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Mamdouh Halawa"'
Autor:
Abdullah M Alrobaish, Mehedin Arifovic, Eugene Golovins, Mamdouh Halawa, Ahmed N AlJomaie, Naylan Kanatoglu
Publikováno v:
Metrologia. 58:01003
Main text A comparison of AC-DC Voltage Transfer Standards between TÜBİTAK (Turkey), NMCC SASO (Saudi Arabia), NIS (Egypt) and NMISA (South Africa) conducted between February 2018 and April 2019. Fluke 792A is used as the traveling standard and TÜ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a7ac5c207136361de72a25b352fc791
https://doi.org/10.1088/0026-1394/58/1a/01003
https://doi.org/10.1088/0026-1394/58/1a/01003
Publikováno v:
2018 Conference on Precision Electromagnetic Measurements (CPEM 2018).
Physical structure of Single-Junction Thermal Converter (SJTC), Multi-Junction Thermal Converter (MJTC) and Thermal Current Converter (TCC) can be represented using electrical simulation of the equivalent modeling of LRC circuit. This work aims to in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e3529faffb766d3b2f1af631e8e201f
https://doi.org/10.1109/cpem.2018.8501189
https://doi.org/10.1109/cpem.2018.8501189
Autor:
Mamdouh Halawa, Hala M. Abdel Mageed
Publikováno v:
2018 Conference on Precision Electromagnetic Measurements (CPEM 2018).
This paper describes a technical method for achievement of traceability in DC voltage measurements starting from 10 mV up to 5 kV at National Institute of Standards. Traceable calibration of Fluke 5720A Calibrator, up to 1 kV, has been performed. To
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba9b3d286673d3a8b6269194acd84ad9
https://doi.org/10.1109/cpem.2018.8501042
https://doi.org/10.1109/cpem.2018.8501042
Publikováno v:
MAPAN. 29:175-181
The paper describes an interlaboratory comparison program between the National Institute for Standards (NIS), Egypt and the Istituto Nazionale di Ricerca Metrological (I.N.Ri.M.), Italy for measuring low ac voltages. The aim of this program is to dem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b15826322741ba3bbfabadbcfd32b07
https://doi.org/10.1007/s12647-013-0063-z
https://doi.org/10.1007/s12647-013-0063-z
Autor:
Mamdouh Halawa, M. Rahal
Publikováno v:
MAPAN. 27:139-142
This paper describes a calibration procedure for AC current measurements at 1 mA, 100 µA and 10 μA using a NIST-calibrated 10 mA current shunt as a reference standard. The procedure involves a step-down technique using the reference transfer standa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::167fbfa3e60a07fc65f6e42385e06602
https://doi.org/10.1007/s12647-012-0023-z
https://doi.org/10.1007/s12647-012-0023-z
Publikováno v:
MAPAN. 27:143-148
This paper describes the establishment of an integrated calibration system for accurate AC current measurements at National Institute of Standards, Egypt. The measurement system consists of a new assembled thermal current converter (TCC) associated w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba5d7ce93a7db9cdf50a9a894a7088e8
https://doi.org/10.1007/s12647-012-0020-2
https://doi.org/10.1007/s12647-012-0020-2
Autor:
Gean Marcos Geronymo, P.S. Filipski, Lucas Di Lillo, S Campos, D. Slomovitz, Thomas E. Lipe, A. Spaggiari, Carlos Faverio, Renata T. de Barros e Vasconcellos, E. Yasuda, Renato Afonso, Mamdouh Halawa
Publikováno v:
29th Conference on Precision Electromagnetic Measurements (CPEM 2014).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92316ffb973049d70de7fbb6d06232bb
https://doi.org/10.1109/cpem.2014.6898362
https://doi.org/10.1109/cpem.2014.6898362
Autor:
Mamdouh Halawa
Publikováno v:
CPEM 2010.
The physical structure of the SJTVC can be represented via simulation using an equivalent RLC circuit to evaluate the error sources when used as a standard for AC measurements. This paper describes the applied technique on 0.6 V SJTVC to estimate the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b6b4bc840e12b42497c1e7858953b34
https://doi.org/10.1109/cpem.2010.5543598
https://doi.org/10.1109/cpem.2010.5543598
Autor:
Mamdouh Halawa, Najat Al-Rashid
Publikováno v:
UKSim
The physical structure of the SJTVC can be represented via simulation using an equivalent RLC circuit to investigate the performance and estimate the error sources when using this device as a precise tool for AC voltage and current measurements. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::150c915c25dafe040ab8c1cbde071cd4
https://doi.org/10.1109/uksim.2010.120
https://doi.org/10.1109/uksim.2010.120
Publikováno v:
2008 43rd International Universities Power Engineering Conference.
This paper describes the technical procedures for establishment and characterization of a traceable AC voltage source at National Institute for Standards (NIS), Egypt. This accurate device was established to cover ranges from 10 mV to 500 mV at frequ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5700f1ad64a9b5eaf72290445baeb9a1
https://doi.org/10.1109/upec.2008.4651511
https://doi.org/10.1109/upec.2008.4651511