000			02076cam a2200337 a 4500
003			EG-GiCUC
005			20250223031107.0
008			141116s2014 ua d f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.13.13.M.Sc.2014.Sh.I
100	0		_aShaker Abdelwahab Shaker Gelany
245	1	3	_aAn investigation and performance characterization of pressure balances as primary standards for pressure measurements / _cShaker Abdelwahab Shaker Gelany ; Supervised Badr S. Azzam , Alaaeldin A. Eltawil
246	1	5	_aفحص وتوصيف الاداء لمعايير الضغط كإماميات قياسية لقياس الضغوط
260			_aCairo : _bShaker Abdelwahab Shaker Gelany , _c2014
300			_a100 P. : _bchart ; _c30cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Mechanical Design and Production
520			_aDuring the last few decades, the rapidly increasing of using high pressure technology in science and engineering has brought a corresponding need for improved accuracy in pressure measurement over a wide range of standards as well as a challenging methodology for the calibration of the used instruments. The focal point of this thesis is concentrated on the study of the metrological characteristics of 290 MPa oil-operated controlled clearance pressure balance which uses a 3.27 mm nominal diameter piston and cylinder gauge. The gauge is surrounded by a jacket pressure operated through an external cylinder of pressure ranges from 0 to 40 % of system pressure using di-ethyl-hexyl-sebacate as a pressure transmitting fluid
530			_aIssued also as CD
653		4	_aControlled Clearance
653		4	_aDistortion Coefficient
653		4	_aPressure Balance
700	0		_aAlaaeldin Abdelfattah Eltawil , _eSupervisor
700	0		_aBadr Shaaban Azzam , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aAml _eCataloger
905			_aNazla _eRevisor
942			_2ddc _cTH
999			_c48240 _d48240