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Rotor for rheometry of material with variable volume

A rotor and volume technology, which is used in indirect flow characteristics measurement, measurement devices, analysis materials, etc., and can solve problems such as inaccurate measurement

Pending Publication Date: 2022-05-27
TA仪器 沃特世有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Typical rheometer geometries will be "underfilled" by this volume reduction, which will result in inaccurate measurements

Method used

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  • Rotor for rheometry of material with variable volume
  • Rotor for rheometry of material with variable volume
  • Rotor for rheometry of material with variable volume

Examples

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Embodiment Construction

[0038] Reference in this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present teachings. References to specific embodiments within this specification are not necessarily all referring to the same embodiment.

[0039] The present teachings will now be described in more detail with reference to exemplary embodiments of the present teachings as illustrated in the accompanying drawings. While the present teachings have been described in connection with various embodiments and examples, the present teachings are not intended to be limited to such embodiments. In contrast, the present teachings cover various alternatives, modifications and equivalents, as will be understood by those skilled in the art. Those of ordinary skill, able to use the teachings herein, will recognize additional embodiments, modifications, and impleme...

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Abstract

The invention provides a rheological system. The rheological system comprises a sample chamber; a compressed air system configured to provide compressed air to pressurize the sample chamber; and a rotor configured for rheological measurement of a material having a variable volume, the rotor including an elongate shaft extending to a measurement portion, the measurement portion having a widened geometry relative to the elongate shaft. The rotor is dimensioned such that a compression ratio of at least 5: 1, defined by a ratio of a decompressed volume of the sample when the sample chamber is not pressurized to a compressed volume of the sample when the sample chamber is pressurized, is achieved while maintaining a material coverage of the sample over the entire measurement portion of the rotor. Methods of employing rheological measurements using such rotors are also disclosed.

Description

[0001] Related applications [0002] This patent application claims U.S. Provisional Patent Application No. 62 / entitled "Rotor for Rheological Measurements of Material with Variable Volume", filed October 15, 2019 Priority non-provisional patent application of 915,266, which is incorporated herein by reference. technical field [0003] The present invention generally relates to rheological measurement systems. More particularly, the present invention relates to a rotor and related systems and methods for rheological measurements of materials having variable volumes. Background technique [0004] Rheometers are used to characterize materials such as oils, dispersions, suspensions, emulsions, adhesives, biological fluids, polymers, gels, pastes, slurries, melts, resins, powders, foams or mixtures of the above Instruments for the rheological properties of materials, etc. As used herein, the term "rheometer" shall include rheometers, viscometers, viscometers, and any other i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/14
CPCG01N11/14G01N11/142G01N2203/0232G01N2011/008
Inventor R·李A·阿胡加S·蔡尔迪尔斯
Owner TA仪器 沃特世有限责任公司
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