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A radar level gauge

A technology of radar level gauge and end face, which is applied in the field of level gauge, can solve problems such as the decrease of radar level gauge precision, unguaranteed measurement accuracy, and loss of electromagnetic waves, so as to reduce surrounding scattering, improve measurement accuracy, The effect of improving measurement accuracy

Active Publication Date: 2020-11-10
BEIJING GODA INSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing radar level gauge, the electromagnetic wave loss is serious at the connection between the waveguide channel and the upper end of the lens, which leads to a decrease in the accuracy of the radar level gauge, and the measurement accuracy cannot be guaranteed.

Method used

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  • A radar level gauge
  • A radar level gauge
  • A radar level gauge

Examples

Experimental program
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Effect test

Embodiment 1

[0019] An embodiment of the present invention provides a radar level gauge, such as Figure 1 to Figure 3 As shown, it includes a waveguide 1 and a lens 2. A waveguide 11 and an installation cavity 12 are formed in the waveguide 1. The lens 2 is installed in the installation cavity 12. A tapered section 21 is formed on the upper end surface of the lens 2. The tapered section 21 includes a loading section 211 protruding into the waveguide 11 and a loading buffer section 212 outside the waveguide 11 .

[0020] In the radar level gauge provided by the embodiment of the present invention, the upper end surface of the lens 2 is provided with a tapered section 21, so that when the electromagnetic wave of the waveguide channel 11 enters the lens 2 through the tapered section 21, the impact of the lens 2 on the electromagnetic wave is reduced. The reflection effect makes more electromagnetic waves enter the lens 2, thereby improving the measurement accuracy of the radar level gauge; a...

Embodiment 2

[0033] The main difference between this embodiment and the first embodiment lies in the structure of the absorbing material.

[0034] In this example, if Figure 4 and Figure 5 As shown, the wave-absorbing material is a cylindrical member 3' with a hollow interior.

[0035] Optionally, the hollow part in the cylindrical member 3' is conical or cylindrical.

[0036] like Figure 4 and Figure 5 Shown is a schematic structural view in which the hollow part of the cylindrical member 3' is cylindrical.

[0037] The wave-absorbing material is arranged as a cylindrical member 3', and is sheathed on the lower part of the loading buffer section 212, which can reduce the reflection of electromagnetic waves at the corner (the corner between the tapered section 21 and the upper end surface of the lens 2). In addition, the cylindrical member 3' is easier to process, which is beneficial to reduce the overall manufacturing cost of the radar level gauge.

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PUM

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Abstract

The invention provides a radar material level gauge. The radar material level gauge includes a waveguide body and a lens, wherein a waveguide path and a mounting cavity are formed in the waveguide body, the lens is mounted to the mounting cavity, a tapered section is formed on an upper end surface of the lens, and the tapered section includes a loading section extending into the waveguide path anda loading buffer section located outside the waveguide path. The radar material level gauge is advantaged in that the upper end surface of the lens is provided with the tapered section, reflection ofthe lens for electromagnetic waves is reduced, more electromagnetic waves are made to enter the lens, and thereby measurement accuracy of the radar material level gauge is improved, moreover, the tapered section of the radar material level gauge includes the loading section and the loading buffer section, the loading section extends into the waveguide path and receives the electromagnetic waves,the loading buffer section allows the electromagnetic waves to propagate more down through the loading section, the electromagnetic waves scattering around are reduced, and measurement accuracy of theradar material level gauge is improved.

Description

technical field [0001] The invention relates to the field of level gauges, in particular to a radar level gauge. Background technique [0002] In the existing radar level gauge, the electromagnetic wave loss is serious at the connection between the waveguide channel and the upper end of the lens, which leads to a decrease in the precision of the radar level gauge, and the measurement accuracy cannot be guaranteed. Contents of the invention [0003] In order to solve the above technical problems, an embodiment of the present invention provides a radar level gauge. The electromagnetic wave loss at the connection between the waveguide path of the radar level gauge and the upper end of the lens is small, and the overall measurement accuracy of the radar level gauge is high. [0004] In order to achieve the purpose of the present invention, the technical scheme that the present invention takes is as follows: [0005] The invention provides a radar level gauge, which includes a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/284
Inventor 周雷
Owner BEIJING GODA INSTR