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Viscometer

A viscometer, hollow technology, applied in the direction of flow characteristics, measuring devices, instruments, etc., can solve the problems of liquid infiltration, additional seals, damage, etc.

Active Publication Date: 2016-03-23
安东帕有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to the disadvantage of lateral forces, which in the case of microsystems are very detrimental to the bearings, any leaks at the rotating seals of the hollow cylinders could allow problematic sample liquids to seep into areas where they could pose a threat or cause damage
The disadvantage of such a device is that additional seals and / or bearings are required

Method used

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Examples

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Embodiment Construction

[0027] like figure 1 Schematically shown, the viscometer according to the invention comprises a base 5 in which an advantageously cylindrical receiving space or hollow space 25 is formed, which contains the hollow cylinder 1 therein. As already mentioned, the hollow cylinder 1 does not have to have a cylindrical shape; the outer surface or generatrix can also be inclined, so that other geometries can be used, especially those that are rotationally symmetrical to the longitudinal axis of the hollow cylinder 1 geometry.

[0028] The hollow cylinder 1 is supported in fluid-tight bearings 7 in the region of its ends. For this purpose, a socket 45 is attached or integrally formed at the end region or end surface of the hollow cylinder 1 and is used to support the hollow cylinder 1 in the bearing 7 . These sockets 45 allow the measurement fluid to pass through the hollow cylinder 1 , for example in the direction of the arrow 42 .

[0029] Advantageously, a rotationally symmetrica...

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Abstract

A viscometer has a hollow cylinder (1) mounted in a base frame (5) and rotated about its longitudinal axis. A measuring part (8) being flowed through by a fluid to be tested is rotatably supported in the hollow cylinder (5). The hollow cylinder (1) is provided with an electromagnetic drive with a stator (2) and a rotor (14) for the hollow cylinder, with which the hollow cylinder (1) is rotatable. The stator (2) is supported on the base frame (5) and the rotor (14) is supported on the hollow cylinder (1). An electromagnetic coupling of the stator (2) with the rotor (14) is provided by a ring rotor (3) disposed between the stator (2) and the rotor (14). The ring rotor (3) is mounted about the longitudinal axis of the hollow cylinder (1) so that the base frame (5) and the hollow cylinder (1) are decoupled with respect to the electromagnetic drive and a torque by the electromagnetic drive is applied to the hollow cylinder (1) while the acting forces on the hollow cylinder (1) are minimized.

Description

technical field [0001] The invention relates to a viscometer according to the preamble of claim 1 . Background technique [0002] There are measuring systems for measuring properties of fluids, especially viscosity, the central part of which is a hollow cylinder filled with the liquid to be measured and rotated about its longitudinal axis, and wherein the measuring part is rotatably supported, wherein the test fluid medium Co-rotate with the rotation of the external measuring part or the hollow cylinder. This structure basically corresponds to a viscometer according to Couette's principle, in which the viscosity of the fluid between concentric measuring parts (preferably cylinders) is determined by an outer hollow cylinder rotating at a constant speed and an inner measuring part co-rotating The self-regulating balance between is determined. [0003] Reference is always made next to a hollow cylinder, although the shape of the inner surface of such an outer measuring part i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/14
CPCG01N11/14G01N2011/145G01N2291/02818H02K49/10G01N2011/147
Inventor W.贝利施B.利奥波德
Owner 安东帕有限责任公司
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