MAS-stator with suctioning-off device

MAS-stator with suctioning-off device

An MAS stator (7) for an NMR-MAS probe head (1) has a bottom bearing (8) with at least one nozzle and at least one radial bearing (9a, 9b), wherein one substantially circular cylindrical MAS rotor (21c) is provided for receiving a measurement substance. The MAS rotor can be supported by compressed g...

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Hauptverfasser: Knott, Benno, Osen, David, Purea, Armin
Format: Patent
Sprache:eng
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MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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creator Knott, Benno
Osen, David
Purea, Armin
description An MAS stator (7) for an NMR-MAS probe head (1) has a bottom bearing (8) with at least one nozzle and at least one radial bearing (9a, 9b), wherein one substantially circular cylindrical MAS rotor (21c) is provided for receiving a measurement substance. The MAS rotor can be supported by compressed gas in a measurement position within the MAS stator by means of a gas supply device and can be rotated about the cylinder axis of the MAS rotor by means of a pneumatic drive. A suction device (100) is provided in a space below the radial bearing for suctioning-off the gas introduced by the gas supply device, and generates an underpressure in the space below the radial bearing during measurement operation. This provides a stator for NMR-MAS spectroscopy in which the closure at the head end of the stator is omitted.
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The MAS rotor can be supported by compressed gas in a measurement position within the MAS stator by means of a gas supply device and can be rotated about the cylinder axis of the MAS rotor by means of a pneumatic drive. A suction device (100) is provided in a space below the radial bearing for suctioning-off the gas introduced by the gas supply device, and generates an underpressure in the space below the radial bearing during measurement operation. 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The MAS rotor can be supported by compressed gas in a measurement position within the MAS stator by means of a gas supply device and can be rotated about the cylinder axis of the MAS rotor by means of a pneumatic drive. A suction device (100) is provided in a space below the radial bearing for suctioning-off the gas introduced by the gas supply device, and generates an underpressure in the space below the radial bearing during measurement operation. This provides a stator for NMR-MAS spectroscopy in which the closure at the head end of the stator is omitted.</abstract><oa>free_for_read</oa></addata></record>
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subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title MAS-stator with suctioning-off device
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