CN108759978A - A kind of radar level gauge - Google Patents
A kind of radar level gauge Download PDFInfo
- Publication number
- CN108759978A CN108759978A CN201810471539.3A CN201810471539A CN108759978A CN 108759978 A CN108759978 A CN 108759978A CN 201810471539 A CN201810471539 A CN 201810471539A CN 108759978 A CN108759978 A CN 108759978A
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- CN
- China
- Prior art keywords
- echo
- level gauge
- radar level
- instrument
- microwave
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The present invention provides a kind of radar level gauge, including mast antenna, the end of mast antenna is connected on microwave emitter, echo detector is provided on the outside of microwave emitter, echo detector is connected on echo signal processing device, it is provided with instrument on echo signal processing device, instrument, echo detector, microwave emitter are arranged on shell, the side of shell is provided with cable inlet, and the two-way time of each pulse is digitally converted into distance, level by clawback signal processor by sound intelligence echo technique.The solution of the present invention so that liquid level gauging is more accurate, can inhibit spurious echo signal automatically.
Description
Technical field
The present invention relates to fluid level measuring device technical fields, and in particular to a kind of radar level gauge.
Background technology
With the development of oil and chemical engineering industry, liquid level gauge has obtained more and more extensive answer in field of industrial automatic control
Use radar surveying technology with the various high temperature fog-like liquids of, wet tank, process vessel, belt stirrer, realize it is non-contact, exempt from
It safeguards and measures, enabling steam, pressure dust or temperature are not influenced in by technical process completely.Currently there are
Liquid level gauge usually based on radar level gauge, such as：Guide wave radar liquid level gauge, but the radar level gauge on existing market is logical
It it is often the time difference for emitting pulse signal and echo-signal by calculating, to obtain the liquid level of measured medium, but due to existing
The radar level gauge echo-signal small to amplitude in market is difficult identification, thus reduces the detection range of instrument, and can not
Automatically inhibit spurious echo, therefore often with the complexity of chamber wall, and reduce measurement accuracy, in addition traditional liquid level
Meter is inconvenient in terms of programmed process, can only connect machine programming.
Invention content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of radar level gauge, the deficiencies in the prior art are overcome, are made
Programming operation it is simpler, Intelligent treatment echo-signal inhibits spurious echo automatically.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs：
The end of a kind of radar level gauge, including mast antenna, the mast antenna is connected on microwave emitter, described
Echo detector is provided on the outside of microwave emitter, the echo detector is connected on echo signal processing device, described time
Instrument is provided on wave signal processor, the instrument, echo detector, microwave emitter are arranged on shell, the shell
The side of body is provided with cable inlet, the clawback signal processor by sound intelligence echo technique by each pulse it is round-trip when
Between be digitally converted into distance, level.
The sound intelligence echo technique includes curve forming, statistical analysis, echo reconstruction and digital filter, curve forming
It is digitized by echo envelope line and is converted and generate echo pattern, then dielectric surface is determined to echo pattern is for statistical analysis
The distance between to instrument datum mark, digital filter is used for identifying and filtering off spurious echo, and echo reconstruction is by analyzing statistics
Rear data information and echo pattern is regenerated again after filtering off the information of spurious echo.
The microwave frequency range that the microwave emitter is sent out is 5.8-2.6GHz, and the microwave is within the scope of this
For CW/FM continuous wave/frequency modulated modulated.
The instrument is programmed by infrared ray manual operator.
The mast antenna is PTEE or polypropylene material, and the epimere of the mast antenna is set as mask segments.
The lower end flue of the mast antenna.
(3) advantageous effect
An embodiment of the present invention provides a kind of radar level gauges.Has following advantageous effect：Radar level gauge is with intrinsic frequency
It is normal that rate microwave reflection from mast antenna, the frequency and the time difference for transmitting signals to return signal reflect two kinds of different dielectrics
Interface between number material optimizes echo pattern so that by sound intellectual technology Intelligent treatment echo after converted
Fluid value is more accurate, and error is small, inhibits spurious echo automatically.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of heretofore described radar level gauge；
Fig. 2 is radar level gauge principle schematic of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Refering to fig. 1 to shown in Fig. 2, the present invention provides a kind of radar level gauge, including mast antenna 1, the end of mast antenna 1
End is connected on microwave emitter 2, and the outside of microwave emitter 2 is provided with echo detector 3, and echo detector 3 is connected to back
On wave signal processor, instrument 4 is provided on echo signal processing device, instrument 4, echo detector 3, microwave emitter 2 are all provided with
It sets on shell 5, the side of shell 5 is provided with cable inlet 6, and clawback signal processor will be each by sound intelligence echo technique
The two-way time of pulse is digitally converted into distance, level.
Emit radar wave signal by microwave emitter 2, radar wave signal 00 is reflected into back by the measured object in container 0
On wave detector 3, all echoes are converted into distance, level, warp by the sound intelligence echo technique of echo signal processing device
It crosses number conversion and generates echo pattern, further according to dielectric constant and the reflected wave shape difference of tested reverberation, filter out falseness
Echo, regenerates optimization reflectogram, and specific echo data is reacted in instrument and is read for user by reflectogram
With reference to shown in Fig. 2, it is preferred that sound intelligence echo technique includes curve forming, statistical analysis, echo reconstruction and number
Filter, curve forming, which is digitized and converted by echo envelope line, generates echo pattern, then carries out statistical to echo pattern
Analysis determines dielectric surface the distance between to instrument datum mark, and digital filter is for identifying and filter off spurious echo, echo
Reconstruction again regenerates echo pattern after the information by analyzing the data information after counting and elimination spurious echo；Microwave is sent out
The microwave frequency range that emitter is sent out is 5.8-2.6GHz, and microwave is CW/FM continuous wave/frequency modulated modulated, CW/FM continuous wave/frequency modulated modulated within the scope of this
It can make the error smaller measured, filtration spurious echo of being more convenient for finds the echo of real liquid level；Instrument passes through infrared ray hand
Behaviour's device is programmed, and the programming of instrument can be made simpler in this way, is more convenient for controlling；Mast antenna is PTEE or polypropylene material
Matter, this material so that sealing performance is more preferable, and the epimere of mast antenna is set as mask segments 8, can make from outside in this way
Signal interference；The lower end of mast antenna is at 7 shape of loudspeaker so that the echo range bigger of echo-signal facilitates tubaeform container
It uses.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features；And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (6)
1. a kind of radar level gauge, including mast antenna, it is characterised in that：The end of the mast antenna is connected to Microwave emission
On device, echo detector is provided on the outside of the microwave emitter, the echo detector is connected to echo signal processing device
On, instrument is provided on the echo signal processing device, the instrument, echo detector, microwave emitter are arranged at shell
On, the side of the shell is provided with cable inlet, and the clawback signal processor is by sound intelligence echo technique by each arteries and veins
The two-way time of punching is digitally converted into distance, level.
2. radar level gauge as described in claim 1, it is characterised in that：The sound intelligence echo technique include curve forming,
Statistical analysis, echo reconstruction and digital filter, curve forming, which is digitized and converted by echo envelope line, generates echo pattern,
For statistical analysis to echo pattern again to determine dielectric surface the distance between to instrument datum mark, digital filter is used for knowing
Not and filter off spurious echo, echo reconstruction by analyze statistics after data information and filter off spurious echo information after again to return
Wave figure regenerates.
3. radar level gauge as described in claim 1, it is characterised in that：The microwave frequency model that the microwave emitter is sent out
It encloses for 5.8-2.6GHz, the microwave is CW/FM continuous wave/frequency modulated modulated within the scope of this.
4. radar level gauge as described in claim 1, it is characterised in that：The instrument is compiled by infrared ray manual operator
Journey.
5. radar level gauge as described in claim 1, it is characterised in that：The mast antenna be PTEE or polypropylene material,
The epimere of the mast antenna is set as mask segments.
6. radar level gauge as described in claim 1, it is characterised in that：The lower end flue of the mast antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810471539.3A CN108759978A (en) | 2018-05-17 | 2018-05-17 | A kind of radar level gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810471539.3A CN108759978A (en) | 2018-05-17 | 2018-05-17 | A kind of radar level gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108759978A true CN108759978A (en) | 2018-11-06 |
Family
ID=64008115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810471539.3A Pending CN108759978A (en) | 2018-05-17 | 2018-05-17 | A kind of radar level gauge |
Country Status (1)
| Country | Link |
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| CN (1) | CN108759978A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115683284A (en) * | 2022-12-29 | 2023-02-03 | 浙江和达科技股份有限公司 | Method for inhibiting false echo and liquid level measuring system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280938A (en) * | 1999-07-15 | 2001-01-24 | 恩德莱斯和豪瑟尔两合公司 | Method and equipment for precisely determining filling level of filler in container |
| US20020112774A1 (en) * | 2001-02-08 | 2002-08-22 | Martin Gaiser | Filling level measuring device and method for the non-contact determination of the filling level of a filling product in a receptacle |
| CN101253395A (en) * | 2005-09-01 | 2008-08-27 | 罗斯蒙特雷达液位股份公司 | Processing of tank signal in radar level gauge system |
| CN101614574A (en) * | 2009-08-07 | 2009-12-30 | 曹磊 | Frequency modulation radar body place instrument |
| CN101825486A (en) * | 2009-03-02 | 2010-09-08 | Vega格里沙贝两合公司 | Measurement of fill levels by evaluating an echo curve |
| CN102047082A (en) * | 2008-04-30 | 2011-05-04 | 罗斯蒙特雷达液位股份公司 | Method of determining a disturbance echo profile for a radar level gauge system |
| CN102798436A (en) * | 2011-05-24 | 2012-11-28 | 罗斯蒙特储罐雷达股份公司 | FMCW-type radar level gauge |
-
2018
- 2018-05-17 CN CN201810471539.3A patent/CN108759978A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280938A (en) * | 1999-07-15 | 2001-01-24 | 恩德莱斯和豪瑟尔两合公司 | Method and equipment for precisely determining filling level of filler in container |
| US20020112774A1 (en) * | 2001-02-08 | 2002-08-22 | Martin Gaiser | Filling level measuring device and method for the non-contact determination of the filling level of a filling product in a receptacle |
| CN101253395A (en) * | 2005-09-01 | 2008-08-27 | 罗斯蒙特雷达液位股份公司 | Processing of tank signal in radar level gauge system |
| CN102047082A (en) * | 2008-04-30 | 2011-05-04 | 罗斯蒙特雷达液位股份公司 | Method of determining a disturbance echo profile for a radar level gauge system |
| CN101825486A (en) * | 2009-03-02 | 2010-09-08 | Vega格里沙贝两合公司 | Measurement of fill levels by evaluating an echo curve |
| CN101614574A (en) * | 2009-08-07 | 2009-12-30 | 曹磊 | Frequency modulation radar body place instrument |
| CN102798436A (en) * | 2011-05-24 | 2012-11-28 | 罗斯蒙特储罐雷达股份公司 | FMCW-type radar level gauge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115683284A (en) * | 2022-12-29 | 2023-02-03 | 浙江和达科技股份有限公司 | Method for inhibiting false echo and liquid level measuring system |
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Application publication date: 20181106 |
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