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Radar level meter high-precision measurement output processing method based on optimized data model

A radar level gauge, data optimization technology, applied in measuring devices, liquid/fluid solids measurement, engine lubrication, etc., can solve the problems of slow response, inability to track, affecting the measurement accuracy of radar level gauges, etc.

Active Publication Date: 2021-05-07
DANDONG TOP ELECTRONICS INSTR GRP
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Problems solved by technology

However, the problem with these two methods is that the calculation process is performed based on a large number of measured values ​​in the early stage, but in reality, the material level and its measured values ​​change dynamically, so the large-scale data calculation will inevitably lead to slow response and cannot track the real level value. , Mainly the change of the liquid level value, which will further affect the measurement accuracy of the radar level gauge

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  • Radar level meter high-precision measurement output processing method based on optimized data model
  • Radar level meter high-precision measurement output processing method based on optimized data model
  • Radar level meter high-precision measurement output processing method based on optimized data model

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Embodiment Construction

[0029] The 130 actual measurement values ​​shown in Table 1 show that the absolute measurement error of the radar level gauge selected in this paper is ±5mm.

[0030]

[0031] The method for processing the high-precision measurement output of the radar level meter based on the optimized data model is as follows:

[0032] 1. Verify the obtained parameter value:

[0033] First, set a standard known distance of the measured object for the radar level gauge. In this embodiment, the standard distance value is set to 1000mm, and the initial level value D is acquired by the radar level gauge. The initial level value D obtained through the following screening methods:

[0034] ①. Sampling the echo signal of the radar level gauge, each sampling point is obtained by the serial number of the current sampling point and the corresponding echo amplitude figure 1 The original echo envelope curve shown;

[0035] ②. Intercept the original echo envelope curve greater than the preset thres...

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Abstract

The invention provides a radar level meter high-precision measurement output processing method based on an optimized data model. The method comprises the following step: carrying out iterative optimization operation on real-time measurement through a mathematical equation set iterative processing model, so as to solve the technical problems that the prior art needs to be based on a large number of measured values, the operation processing flow is complex and long, the error precision improvement is limited, the processing speed is low, and real-time tracking measurement performance cannot be met. Real-time iteration optimization output is realized, and the technical purposes of real-time liquid level value tracking and high-precision measurement are realized.

Description

technical field [0001] This patent application relates to the field of industrial measurement of distance physical quantities, in particular to a measurement data processing method for obtaining high-error-precision level measurement by using radar. Background technique [0002] Taking the radar level meter as an example, its working principle is: the radar antenna emits a microwave pulse signal with a fixed bandwidth and frequency, and the signal propagates at the speed of light. When it encounters the surface of the measured medium, part of the energy will be reflected back and sent by the antenna. After receiving, the radar level gauge will draw the echo signal envelope curve according to the collected echo signal, which contains the level information of the measured medium. Through the optimization process of the echo signal envelope curve, the calculated Measure the distance value on the surface of the medium. However, since the echo signal will be interfered by the ex...

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Application Information

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IPC IPC(8): G01F23/284
CPCG01F23/284
Inventor 王延朋李祖军王慧源张雷王楚柔
Owner DANDONG TOP ELECTRONICS INSTR GRP
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