TY  - BOOK
AU  - Shaker Abdelwahab Shaker Gelany 
AU  - Alaaeldin Abdelfattah Eltawil  , 
AU  - Badr Shaaban Azzam  , 
TI  - An investigation and performance characterization of pressure balances as primary standards for pressure measurements / 
PY  - 2014///
CY  - Cairo : 
PB  - Shaker Abdelwahab Shaker Gelany , 
KW  - Controlled Clearance
KW  - Distortion Coefficient
KW  - Pressure Balance
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Engineering  - Department of Mechanical Design and Production; Issued also as CD
N2  - During 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
UR  - http://172.23.153.220/th.pdf
ER  -