Magnetorheological fluid settling velocity detection device, method and system

Abstract

The invention discloses a magnetorheological fluid settling velocity detection device, method and system. The device comprises a first wire, a second wire, an inner wall surface, an outer wall surface, magnetorheological fluid and polar plates, wherein the first wire communicates with the outer side of the inner wall surface; the second wire communicates with the outer side of the outer wall surface; the magnetorheological fluid is filled between the inner wall surface and the outer wall surface; and the multiple polar plates are arranged in pairs on the inner side of the inner wall surface and the inner side of the outer wall surface. The method comprises the following steps: applying a magnetic field to the magnetorheological fluid settling velocity detection device, measuring the resistance value of the magnetorheological fluid after magnetic field applying, and removing the magnetic field after the completion of the measurement; and detecting the settling velocity of the magnetorheological fluid according to the resistance value. The method disclosed by the invention is used for detecting the magnetorheological fluid settling velocity, overcomes the defect in the prior art thatdetection can be performed in an experimental environment only, and can be applied to failure detection of the magnetorheological fluid in engineering practice. The magnetorheological fluid settlingvelocity detection device, method and system disclosed by the invention have high measurement accuracy in detection of magnetorheological fluid settling.

Description

technical field [0001] The invention relates to the field of testing the sedimentation characteristics of magnetorheological fluids, in particular to a magnetorheological fluid sedimentation velocity detection device, method and system. Background technique [0002] Magnetorheological fluid is a very popular smart material at present. It is composed of magnetic particles, carrier liquid and additives. It is widely used in shock absorption, polishing, construction, automobile and other fields. With the in-depth research on the application of magnetorheological fluids, the performance requirements of magnetorheological fluids in engineering are gradually becoming higher. However, due to the large density difference and gravity phenomenon between the dispersed phase (magnetic particles) and the continuous phase (carrier liquid and additives) in the magnetorheological fluid, the sedimentation velocity and sedimentation stability of the magnetorheological fluid are always problem...

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Problems solved by technology

In the existing reference literature research, there are the following methods: light transmittance pulsation detection method, timing quantitative chemical sampling method, inductance method, etc. are all used to detect the concentration change of magnetorheological fluid during the sedimentation process, but these characterization methods are not There are more or less disadvantages, it is only suitable for the experimental environment and it is difficult to apply to the detection in actual engineering

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