摘要:
This true density measurement device (10) is a device for measuring the true density of a sample (100) by a gas phase substitution method, and is provided with a sample chamber (30) for housing the sample (100), and a lid (42) for providing closure to an opening (31) of the sample chamber (30). The lid (42) is a non-rotating lid that is pressed against the rim of the opening (31) to hermetically seal the sample chamber (30).
摘要:
This true density measurement device (10) is a device that is used to measure the true density of a sample (100) by a gas phase substitution method, and is provided with: a sample chamber (30) for accommodating the sample (100), the sample chamber (30) being pressurized through the introduction of an inert gas; and an expansion chamber (50) into which is released the inert gas filling the sample chamber (30). The expansion chamber (50), under conditions of normal use, is opened and closed by a detachable cover (42), and the volume thereof is modified by insertion or withdrawal of a volume modification member (55).
摘要:
A gas comparison pycnometer is disclosed which provides a method and apparatus for determining and checking the accuracy of the volume of a solid substice. The pycnometer is also outfitted with a unique cap assembly (15) which fixes the volume in the pycnometer's sample chamber (20) from run to run, and a flow limiting system (33, 35) to prevent entrainment of fine sample particles in the gas stream without prolonging the analysis. The pycnometer also employs a series of purges with a suitable gas to carry unwanted moisture and vapors out of the system. This pycnometer solves many problems in the prior art by quickly and accurately determining the volume of a solid substance.
摘要:
A gas comparison pycnometer is disclosed which provides a method and apparatus for determining and checking the accuracy of the volume of a solid substice. The pycnometer is also outfitted with a unique cap assembly (15) which fixes the volume in the pycnometer's sample chamber (20) from run to run, and a flow limiting system (33, 35) to prevent entrainment of fine sample particles in the gas stream without prolonging the analysis. The pycnometer also employs a series of purges with a suitable gas to carry unwanted moisture and vapors out of the system. This pycnometer solves many problems in the prior art by quickly and accurately determining the volume of a solid substance.
摘要:
The invention relates to a device for measuring the volume of a sample, that comprises two cavities formed in a same block, pressure sensors (3, 4) mounted on the block and surrounded by a radiation shield (28) and connected to the sample chamber (1) by curved ducts. A temperature sensor (25) is also added. The apparatus can be used for measuring the volume of radioactive samples by gas expansion in an expansion chamber (2) without the radiations damaging the pressure sensors (3, 4) while allowing for the correction of temperature-rise effects.
摘要:
Beschrieben wird ein Verfahren zur Ermittlung des Volumens von Probenkörpern poröser keramischer Preßlinge durch Messung der Erhöhung des Gasdrucks innerhalb einer geschlossenen Meßkammer (21) nach Einbringen des Probenkörpers (22) in die Meßkammer (21). Vor der Durchführung der Messung werden die Probenkörper (22) mit einem gasdichten Überzug versehen. Eine Vorrichtung zur Durchführung dieses Verfahrens umfaßt eine mit einem vorgegebenen Gasdruck füllbare Druckkammer (24), eine mit der Druckkammer (24) über ein Ventil (23) verbindbare Meßkammer (21), eine mit der Druckkammer (24) oder der Meßkammer (21) verbundene Druckmeßeinrichtung (10) und einen von der Druckmeßeinrichtung (10) angesteuerten Rechner (13). Weitere Ausführungen sind auch beschrieben.
摘要:
This true density measurement device (10) is a device for measuring the true density of a sample (100) by a gas phase substitution method, and is provided with a sample chamber (30) for housing the sample (100), and a lid (42) for providing closure to an opening (31) of the sample chamber (30). The lid (42) is a non-rotating lid that is pressed against the rim of the opening (31) to hermetically seal the sample chamber (30).
摘要:
This true density measurement device (10) is a device that is used to measure the true density of a sample (100) by a gas phase substitution method, and is provided with: a sample chamber (30) for accommodating the sample (100), the sample chamber (30) being pressurized through the introduction of an inert gas; and an expansion chamber (50) into which is released the inert gas filling the sample chamber (30). The expansion chamber (50), under conditions of normal use, is opened and closed by a detachable cover (42), and the volume thereof is modified by insertion or withdrawal of a volume modification member (55).