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Inductive sensor integrated buoy applicable to viscous liquid level measurement

An integrated, inductive technology, applied in the buoy liquid level indicator and other directions, can solve the problems such as the inability to timely reflect the change of the liquid level, the decrease in the sensitivity of the buoy response, and the time-consuming, labor-intensive and expensive overall replacement.

Inactive Publication Date: 2019-01-08
南京西巨电子技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing float design causes the force F to be the largest in liquids of the same viscosity
The result in practical application is that the response sensitivity of the buoy decreases, and it cannot reflect the change of the liquid level in time.
What is more common is that the float ball is completely stuck to the measuring rod due to excessive force F, and the liquid level sensor completely fails, and the overall replacement is time-consuming, laborious and expensive

Method used

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  • Inductive sensor integrated buoy applicable to viscous liquid level measurement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1: a kind of stainless steel, or aluminum alloy, or polyethylene PE, or polypropylene PP, or polyvinyl chloride PVC, or polystyrene PS, or ABS resin, or polycarbonate PC, or polyamide PA, or Buoys made of polyoxymethylene POM or modified polyphenylene ether PPS. The shape of the buoy is a sphere with a concave top and a concave bottom, and there are 1 or 2 or 3 or 4 cavities in the buoy, or k cavities, where k is a natural number greater than or equal to 5. There are 2 or 4... or i protrusions in the hole in the center part of the buoy, where i is an even number greater than or equal to 6. If the protrusion is removed, the shape enclosed by the projected outline of the hole in the center of the buoy on the horizontal plane is a rectangle, or a rhombus, or a parallelogram, or a regular polygon with an even number of sides j. When i=j, there is one bulge on each side of a rectangle, or rhombus, or parallelogram, or a regular polygon with an even number of side...

Embodiment 2

[0044]Embodiment 2: a kind of stainless steel, or aluminum alloy, or polyethylene PE, or polypropylene PP, or polyvinyl chloride PVC, or polystyrene PS, or ABS resin, or polycarbonate PC, or polyamide PA, or Buoys made of polyoxymethylene POM or modified polyphenylene ether PPS. The shape of the buoy is a sphere with a concave top and a concave bottom, and there are 1 or 2 or 3 or 4 cavities in the buoy, or k cavities, where k is a natural number greater than or equal to 5. There are 2 or 4... or i protrusions in the hole in the center part of the buoy, where i is an even number greater than or equal to 6. If the protrusion is removed, the shape surrounded by the projected outline of the hole in the center of the buoy on the horizontal plane is a circle or an ellipse. A method can be found to equally divide the circumference i of the circle or ellipse, so that the protrusions are located on each equal segment and symmetrical about the center; in particular, each protrusion is...

Embodiment 3

[0046] Embodiment 3: a kind of stainless steel, or aluminum alloy, or polyethylene PE, or polypropylene PP, or polyvinyl chloride PVC, or polystyrene PS, or ABS resin, or polycarbonate PC, or polyamide PA, or Buoys made of polyoxymethylene POM or modified polyphenylene ether PPS. The shape of the buoy is a sphere with a concave top and a concave bottom, and there are 1 or 2 or 3 or 4 cavities in the buoy, or k cavities, where k is a natural number greater than or equal to 5. There are i protrusions in the hole at the center of the buoy, and i is a natural number greater than or equal to 2. If the protrusion is removed, the shape enclosed by the projected outline of the hole in the center of the buoy on the horizontal plane is a regular polygon with an odd number of sides j. When i=j, on each side of the regular polygon, there is a bulge, and each bulge points to the centroid of the regular polygon; in a special position, each bulge is located on the midpoint of the side and p...

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PUM

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Abstract

The invention discloses an inductive sensor integrated buoy applicable to viscous liquid level measurement. A plurality of bulges are set at a central hole of the buoy, so gaps between the buoy and ameasurement rod are increased, a superposition area is reduced, when the buoy and the measurement rod carry out relative motion in viscous liquid, viscous force is reduced, and the motion is free andsmooth.

Description

technical field [0001] The invention relates to an integrated buoy used for an inductive sensor used for viscous liquid level measurement, and belongs to the technical field of instruments and meters. . Background technique [0002] Viscosity is the degree of viscosity and the primary function of materials, also known as dynamic viscosity, viscosity (stiction) coefficient, and internal friction coefficient. Different substances have different viscosities. For example, at normal temperature (20°C) and normal pressure, the viscosity of air is 0.018mPa s, that of gasoline is 0.65mPa s, that of water is 1 mPa s, and that of olive oil is 10 2 mPa·s, castor oil is 10 3 mPa·s, honey is 10 4 mPa·s, tar is 10 6 mPa·s, asphalt is 10 8 mPa s. [0003] viscosity Defined as the ratio of shear stress to shear strain gradient (the rate of change of shear strain with position) when the fluid is subjected to shear stress, the mathematical expression is: [0004] In the formula:...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F23/76
CPCG01F23/76
Inventor 龚大成车红昆
Owner 南京西巨电子技术有限公司