Zobrazeno 1 - 10
of 25
pro vyhledávání: '"R Maghenzani"'
Publikováno v:
Metrologia. 36:579-584
A finite element method (FEM) developed by the University of Cassino and the Istituto di Metrologia G. Colonnetti (IMGC, Turin) to optimize the design and use of simple pressure balances was applied while the most important operating and design param
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::049c874d8f54e34b120c78fcd5da9d4a
https://doi.org/10.1088/0026-1394/36/6/19
https://doi.org/10.1088/0026-1394/36/6/19
Publikováno v:
Physica B: Condensed Matter. 265:239-245
A review of the main metrological characteristics obtained with a large family of free-cylinder and free-rod pressure transducers using different materials (hard tool steels, tungsten carbide and ceramics), different shapes of active elements and dif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd4affe8965ad33a0ce27faa2f9900d6
https://doi.org/10.1016/s0921-4526(98)01384-2
https://doi.org/10.1016/s0921-4526(98)01384-2
Publikováno v:
Measurement. 24:161-172
Strain-gauge free-cylinder pressure transducers are briefly described. An hexagonally shaped free-cylinder to be used for pressure measurements in liquid media up to 0.5 GPa is presented with its main metrological characteristics. The active cylinder
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d934c70b14650ec33a4e8f730697d68
https://doi.org/10.1016/s0263-2241(98)00051-7
https://doi.org/10.1016/s0263-2241(98)00051-7
Publikováno v:
Metrologia. 30:717-720
Primary standard piston gauges are frequently used to perform pressure comparisons, but at other times, and particularly in the pressure range greater than 300 MPa, suitable transfer standards are used for the same purpose. The IMGC and the NIST have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::021fa428bd23ad3698d87baf3435e1cc
https://doi.org/10.1088/0026-1394/30/6/034
https://doi.org/10.1088/0026-1394/30/6/034
Publikováno v:
Metrologia. 29:425-440
Elastic distortions in piston-cylinder units, used in primary standard piston gauges, are responsible for large uncertainties in pressure measurement values typically higher than 50 MPa. The present study considers the results obtained in the calcula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0018696a27b60d61bb8fea47ea2993e
https://doi.org/10.1088/0026-1394/29/6/006
https://doi.org/10.1088/0026-1394/29/6/006
Publikováno v:
High Pressure Research. 5:801-803
The study of elastic distortions in piston-cylinder units of primary standards piston gauges is of importance for the improvement of pressure measurement accuracy. Preliminary work (GF. Molinar et al., 1989) on distortion calculations was carried out
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cee3190f58bec25d0f877d45a0246f5
https://doi.org/10.1080/08957959008246263
https://doi.org/10.1080/08957959008246263
Autor:
Michał K. Urbański, Gianfranco Molinar, Marco Dell'Isola, Giorgio Buonanno, R Wisniewski, R. Maghenzani
The main scientific reasons for this study arise from the need for primary standards for pressure measurements in liquids in the 1 GPa to 2.6 GPa range with a relative uncertainty of at least 10-3. An analysis of current primary standards for high-pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ca898bc860623db99ee8d6bfa93d25a
http://hdl.handle.net/11580/7322
http://hdl.handle.net/11580/7322
Publikováno v:
Journal of Physics E: Scientific Instruments. 20:1173-1179
Two primary standard piston gauges of 2 and 5 MPa capacity used for gas pressure measurement in gauge conditions have been modified and improved. The performance of each was checked, particularly in connection with piston rotational frequency and fal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ee94a4ba7d4c4c80cdeac30e0601564
https://doi.org/10.1088/0022-3735/20/10/004
https://doi.org/10.1088/0022-3735/20/10/004
Publikováno v:
Cryogenics. 23:539-545
The characteristics of four commercial strain-gauge pressure transducers suitable for measurements in a temperature range from 4.2 to 293 K were determined in the presence of magnetic fields up to 6 T. The highest pressure measured was 3.5 MPa. Tests
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::461b4f5a9ca7cf1b2a1e63ff9ef7e63e
https://doi.org/10.1016/0011-2275(83)90190-x
https://doi.org/10.1016/0011-2275(83)90190-x
Publikováno v:
J Res Natl Bur Stand (1977)
Intercomparisons were performed between a primary standard gas piston gauge of the Istituto di Metrologia “G. Colonnetti” (IMGC) and two gauges at the National Bureau of Standards. The agreement between the average pressure generated by the IMGC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1eb9bc675d03958cbfcac0cadec20859
https://doi.org/10.6028/jres.088.013
https://doi.org/10.6028/jres.088.013