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Intelligent current stabilizer and method

A steady flow device and intelligent technology, applied in the direction of measurement device, fluid velocity measurement, speed/acceleration control without auxiliary power, etc., can solve the problem of inability to measure the flow velocity, etc., and achieve the effect of simple structure and easy realization.

Inactive Publication Date: 2011-11-23
WUHAN POLYTECHNIC UNIVERSITY
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Problems solved by technology

Similarly, although electrorheological technology can achieve the purpose of controlling the flow rate, it cannot measure the flow rate

Method used

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Embodiment Construction

[0007] The present invention will be described in further detail below in conjunction with the accompanying drawings, taking the fluid composed of starch granules dispersed in methyl silicone oil as an example.

[0008] Referring to accompanying drawing, according to the laser speckle velocimetry system that is used for the speed of movement of starch granules in fluid according to the present invention, it mainly comprises laser device 1, polarizer 2, lens 3, transparent pipe 4, the fluid 5 that particles are uniformly distributed, CCD camera 6 and The computer consists of 7 components. When the laser beam is emitted by the laser 1 and passes through the fluid 5 uniformly dispersed with starch particles, a laser speckle image will be formed, which will be received by the CCD camera 6 and stored in the computer 7, and the flow can be obtained through image cross-correlation calculation software. The transient speed of the field; by the corresponding computer control program, c...

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Abstract

The invention relates to an intelligent current stabilizer and method controlled by electro-rheological fluid, which is mainly characterized in that the self-adaption adjustment for the flow speed of the fluid is realized based on the combination of a laser speckle speed measurement technique and an electro-rheological technique, thereby reaching the purpose of current stabilization. When laser beams pass through the fluid containing trace particles, the transient speed of the fluid is obtained through a laser speckle speed measurement method. The transient speed of the fluid is compared with a set speed value through a control program, the electric field strength value applied on the fluid is determined; the fluid scattered with the trace particles generates electro-rheological effects; and the flow speed of the fluid in a pipeline is adjusted to be in correspondence with a set value by changing the solidification degree of the fluid, thereby realizing current stabilization. The invention can realize real-time measurement for the flow speed of the fluid and can realize automatic control for the flow speed and flow quantity of the fluid; and simultaneously, the system has the advantage of simplicity in structure and is easy to realize.

Description

technical field [0001] The invention relates to a fluid steady flow device and method, in particular to an adaptive flow steady device and method controlled by electrorheological fluid. Background technique [0002] At present, most of the existing flow stabilization methods adopt mechanical structure, which has the advantage of low cost, and the disadvantage of complex structure, low control accuracy, and inability to measure flow velocity in real time. The laser speckle velocimetry method refers to evenly spreading tiny particles in the fluid, that is, tracer particles. When the particle concentration is large, laser speckle can be generated by laser irradiation. With the help of related laser speckle analysis software, it is possible to measure the displacement of tracer particles within a known short time interval, thereby indirectly measuring the transient velocity distribution in the flow field. It is a non-invasive method for measuring fluid flow velocity. However, l...

Claims

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Application Information

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IPC IPC(8): G05D13/30G01P5/26
Inventor 范吉军余南辉
Owner WUHAN POLYTECHNIC UNIVERSITY
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