CN112729481A - Calibration device of radar level meter - Google Patents
Calibration device of radar level meter Download PDFInfo
- Publication number
- CN112729481A CN112729481A CN202011496293.9A CN202011496293A CN112729481A CN 112729481 A CN112729481 A CN 112729481A CN 202011496293 A CN202011496293 A CN 202011496293A CN 112729481 A CN112729481 A CN 112729481A
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- China
- Prior art keywords
- radar level
- level gauge
- ruler
- calibration
- moving mechanism
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
Abstract
The embodiment of the invention provides a calibration device of a radar level gauge, which comprises: the device comprises a calibration ruler, a measured object, a radar level meter and a moving mechanism; scale marks are arranged on the side wall of the calibration ruler and cover the calibration ruler along the length direction of the calibration ruler; the moving mechanism is arranged on the side wall of the check ruler; the moving mechanism is used for driving the radar level meter to slide on the check ruler, the radar level meter is connected with the check ruler in a sliding mode, and the measured object is arranged at the end portion of the check ruler. The radar level gauge checking device provided by the invention is a portable and telescopic device as a tool for daily maintenance and overhaul, can adjust distance, displays the distance through a scale, compares the measuring range and the measured value of the radar level gauge, checks the measuring accuracy of the radar level gauge, and visually displays the comparison result to a user so as to determine the accuracy of the radar level gauge.
Description
Technical Field
The invention relates to the technical field of radar level gauge calibration, in particular to a calibration device of a radar level gauge.
Background
The radar level gauge is widely applied to various power plants and used for measuring materials, but no standard device for calibrating the radar level gauge exists, so that the measurement of the radar level gauge cannot be accurately confirmed, and the maintenance and the verification of the radar level gauge during the maintenance and the overhaul of the power plants become difficult. The conventional radar level meter has no calibration device, and the measurement accuracy cannot be judged in the use process, so that the measured value of the material level cannot be compared with the true value for reference, and the measurement basis cannot be provided for a user.
Disclosure of Invention
In order to solve the technical problem, the invention provides a calibration device of a radar level gauge, which has the following specific technical scheme:
the embodiment of the invention provides a calibration device of a radar level gauge, which comprises: the device comprises a calibration ruler, a measured object, a radar level meter and a moving mechanism; scale marks are arranged on the side wall of the calibration ruler and cover the calibration ruler along the length direction of the calibration ruler; the moving mechanism is arranged on the side wall of the check ruler; the moving mechanism is used for driving the radar level meter to slide on the check ruler, the radar level meter is connected with the check ruler in a sliding mode, and the measured object is arranged at the end portion of the check ruler.
Furthermore, the measured object can be detachably fixed on the calibration scale.
Furthermore, the shape of the object to be measured is fan-shaped.
Furthermore, the structure of the object to be measured is a foldable structure.
Furthermore, a slide rail is arranged at the top of the check ruler, a slide block capable of sliding on the slide rail is arranged on the slide rail, the radar level gauge is fixed on the slide block, and the moving mechanism controls the slide block to slide on the slide rail.
Further, the moving mechanism includes: a driving motor and a lead screw; the sliding block is provided with a threaded hole matched with the lead screw, the lead screw is in threaded transmission connection with the sliding block through the threaded hole, and the driving motor drives the lead screw to rotate.
Further, the driving motor drives the lead screw to rotate through a gear set.
Further, a coating for reflecting radar waves is coated on the surface of the object to be measured.
Furthermore, the material of the measured object is a cloth material.
Furthermore, the material of check-up chi is the aluminum alloy material.
The embodiment of the invention provides a calibration device of a radar level gauge, which comprises: the device comprises a calibration ruler, a measured object, a radar level meter and a moving mechanism; scale marks are arranged on the side wall of the calibration ruler and cover the calibration ruler along the length direction of the calibration ruler; the moving mechanism is arranged on the side wall of the check ruler; the moving mechanism is used for driving the radar level meter to slide on the check ruler, the radar level meter is connected with the check ruler in a sliding mode, and the measured object is arranged at the end portion of the check ruler. The radar level gauge checking device provided by the invention is a portable and telescopic device as a tool for daily maintenance and overhaul, can adjust distance, displays the distance through a scale, compares the measuring range and the measured value of the radar level gauge, checks the measuring accuracy of the radar level gauge, and visually displays the comparison result to a user so as to determine the accuracy of the radar level gauge.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a schematic structural diagram of a verification apparatus for a radar level gauge according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a calibration scale according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a slider according to an embodiment of the present invention.
FIG. 4 is a schematic view of a partial structure of a verification device for a radar level gauge according to an embodiment of the present invention.
Reference numerals:
the device comprises a calibration ruler 1, a measured object 2, a radar level gauge 3, a moving mechanism 4, scale marks 5, a sliding rail 6, a sliding block 7, a driving motor 8, a lead screw 9 and a gear set 10.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
It should be noted that the device for checking the radar level gauge 3 is a portable and telescopic device as a tool for daily maintenance and overhaul, and can adjust the distance, display the distance through a scale, and compare the range and the measured value of the radar level gauge 3, so as to check the measurement accuracy of the radar level gauge 3, and visually display the comparison result to a user, thereby determining the accuracy of the radar level gauge 3.
Referring to FIGS. 1-4, an embodiment of the present invention provides a calibration apparatus for a radar level gauge 3, comprising: the device comprises a calibration ruler 1, a measured object 2, a radar level meter 3 and a moving mechanism 4; the side wall of the calibration scale 1 is provided with scale marks 5, and the scale marks 5 cover the calibration scale 1 along the length direction of the calibration scale 1; the moving mechanism 4 is arranged on the side wall of the calibration ruler 1; the moving mechanism 4 is used for driving the radar level gauge 3 to slide on the calibration scale 1, the radar level gauge 3 is in sliding connection with the calibration scale 1, and the measured object 2 is arranged at the end of the calibration scale 1.
Specifically, the slide rail 6 with the scale is made of aluminum alloy, and the radar level gauge 3 can freely slide on the slide rail 6. The slide rail 6 is divided into two ends, one end is a measured end, and the other end is an installation end. The measured end is provided with a measured object 2, the measured object 2 is a foldable semicircular device, the semicircular device is in a fan shape, and the fan surface is made of cloth materials and coated with paint for reflecting radar waves. Fixing the radar level gauge 3 at the installation end, aligning the sector after electrifying to measure, comparing the distance displayed by the radar level gauge 3 with the distance measured by the scale, and analyzing the measuring accuracy of the radar level gauge 3 through error calculation so as to judge whether the measurement of the radar level gauge 3 is qualified.
An embodiment of the present invention provides a calibration apparatus for a radar level gauge 3, comprising: the device comprises a calibration ruler 1, a measured object 2, a radar level meter 3 and a moving mechanism 4; the side wall of the calibration scale 1 is provided with scale marks 5, and the scale marks 5 cover the calibration scale 1 along the length direction of the calibration scale 1; the moving mechanism 4 is arranged on the side wall of the calibration ruler 1; the moving mechanism 4 is used for driving the radar level gauge 3 to slide on the calibration scale 1, the radar level gauge 3 is in sliding connection with the calibration scale 1, and the measured object 2 is arranged at the end of the calibration scale 1. The device for checking the radar level gauge 3 provided by the invention is a portable and telescopic device as a tool for daily maintenance and overhaul, can adjust the distance, displays the distance through a scale, compares the measuring range and the measured value of the radar level gauge 3, thereby checking the measuring accuracy of the radar level gauge 3, and visually displays the comparison result to a user, thereby determining the accuracy of the radar level gauge 3. The device can intuitively measure the measuring range and the measuring value of the radar level gauge 3, intuitively calibrate the measuring range and the measuring accuracy of the radar level gauge 3 and provide comparison reference for the radar level gauge 3.
In one specific embodiment, the object to be measured 2 is detachably fixed on the calibration scale 1. Specifically, it can be on calibration ruler 1 with the draw-in groove joint.
In one embodiment, the object 2 is in the shape of a sector.
In one embodiment, the object 2 is configured to be foldable. Is convenient for storage.
In a specific embodiment, a slide rail 6 is arranged on the top of the calibration scale 1, a slide block 7 capable of sliding on the slide rail 6 is arranged on the slide rail 6, the radar level gauge 3 is fixed on the slide block 7, and the moving mechanism 4 controls the slide block 7 to slide on the slide rail 6. Specifically, the material of the sliding block 7 is preferably plastic, and the plastic material has light weight, so that the service life of the sliding rail 6 is conveniently prolonged.
In one embodiment, the moving mechanism 4 comprises: a driving motor 8 and a lead screw 9; the slider 7 is provided with a threaded hole matched with the lead screw 9, the lead screw 9 is in threaded transmission connection with the slider 7 through the threaded hole, and the driving motor 8 drives the lead screw 9 to rotate.
Specifically, the driving motor 8 can be obtained by direct purchase, and the driving of the screw 9 by the driving motor 8 belongs to the conventional technical means in the field, and the driving can be directly driven or driven by a gear, which is not limited in this embodiment.
In one embodiment, the driving motor 8 drives the lead screw 9 to rotate through a gear set 10.
In one embodiment, the surface of the object 2 to be measured is coated with a coating for reflecting radar waves. The above-mentioned coating material reflecting radar waves can be purchased directly, for example, eastern reflecting paint.
In one embodiment, the material of the object 2 is a cloth material. The material is light, and the folding storage is convenient.
In one embodiment, the calibration ruler 1 is made of an aluminum alloy.
An embodiment of the present invention provides a calibration apparatus for a radar level gauge 3, comprising: the device comprises a calibration ruler 1, a measured object 2, a radar level meter 3 and a moving mechanism 4; the side wall of the calibration scale 1 is provided with scale marks 5, and the scale marks 5 cover the calibration scale 1 along the length direction of the calibration scale 1; the moving mechanism 4 is arranged on the side wall of the calibration ruler 1; the moving mechanism 4 is used for driving the radar level gauge 3 to slide on the calibration scale 1, the radar level gauge 3 is in sliding connection with the calibration scale 1, and the measured object 2 is arranged at the end of the calibration scale 1. The device for checking the radar level gauge 3 provided by the invention is a portable and telescopic device as a tool for daily maintenance and overhaul, can adjust the distance, displays the distance through a scale, compares the measuring range and the measured value of the radar level gauge 3, thereby checking the measuring accuracy of the radar level gauge 3, and visually displays the comparison result to a user, thereby determining the accuracy of the radar level gauge 3.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A calibration device for a radar level gauge, comprising: the device comprises a calibration ruler, a measured object, a radar level meter and a moving mechanism; scale marks are arranged on the side wall of the calibration ruler and cover the calibration ruler along the length direction of the calibration ruler; the moving mechanism is arranged on the side wall of the check ruler; the moving mechanism is used for driving the radar level meter to slide on the check ruler, the radar level meter is connected with the check ruler in a sliding mode, and the measured object is arranged at the end portion of the check ruler.
2. The verification device of a radar level gauge according to claim 1, wherein said object to be measured is removably fixed to said calibration scale.
3. The verification device of a radar level gauge according to claim 1, wherein said object under test is fan-shaped.
4. The verification device of a radar level gauge according to claim 1, wherein said structure of the object under test is a foldable structure.
5. The verification device of the radar level gauge according to claim 1, wherein a slide rail is disposed on a top portion of said verification ruler, a slider capable of sliding on said slide rail is disposed on said slide rail, said radar level gauge is fixed on said slider, and said moving mechanism controls said slider to slide on said slide rail.
6. The verification device of a radar level gauge according to claim 5, wherein said moving mechanism comprises: a driving motor and a lead screw; the sliding block is provided with a threaded hole matched with the lead screw, the lead screw is in threaded transmission connection with the sliding block through the threaded hole, and the driving motor drives the lead screw to rotate.
7. The verification device of radar level gauge according to claim 6, wherein said drive motor drives said lead screw in rotation via a gear train.
8. The verification device of a radar level gauge according to any one of claims 1-7, wherein a surface of said object to be measured is coated with a paint for reflecting radar waves.
9. The verification device for a radar level gauge according to any one of claims 1-7, wherein said object to be measured is made of cloth material.
10. The verification device of a radar level gauge according to any one of claims 1 to 7, wherein said verification ruler is made of an aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011496293.9A CN112729481A (en) | 2020-12-17 | 2020-12-17 | Calibration device of radar level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011496293.9A CN112729481A (en) | 2020-12-17 | 2020-12-17 | Calibration device of radar level meter |
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| Publication Number | Publication Date |
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| CN112729481A true CN112729481A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011496293.9A Pending CN112729481A (en) | 2020-12-17 | 2020-12-17 | Calibration device of radar level meter |
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| CN (1) | CN112729481A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624304A (en) * | 2021-08-02 | 2021-11-09 | 北京锐达仪表有限公司 | Ultra-high precision radar level meter calibration device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203455057U (en) * | 2013-08-21 | 2014-02-26 | 天津津滨石化设备有限公司 | Electromagnetic wave checking device of radar liquid level meter |
| CN105157794A (en) * | 2015-09-07 | 2015-12-16 | 丹东通博电器(集团)有限公司 | Guided wave radar liquidometer detection device |
| CN111198029A (en) * | 2018-11-16 | 2020-05-26 | 中冶宝钢技术服务有限公司 | Off-line calibration tool and calibration method for radar level indicator |
-
2020
- 2020-12-17 CN CN202011496293.9A patent/CN112729481A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203455057U (en) * | 2013-08-21 | 2014-02-26 | 天津津滨石化设备有限公司 | Electromagnetic wave checking device of radar liquid level meter |
| CN105157794A (en) * | 2015-09-07 | 2015-12-16 | 丹东通博电器(集团)有限公司 | Guided wave radar liquidometer detection device |
| CN111198029A (en) * | 2018-11-16 | 2020-05-26 | 中冶宝钢技术服务有限公司 | Off-line calibration tool and calibration method for radar level indicator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624304A (en) * | 2021-08-02 | 2021-11-09 | 北京锐达仪表有限公司 | Ultra-high precision radar level meter calibration device and method |
| CN113624304B (en) * | 2021-08-02 | 2023-09-19 | 北京锐达仪表有限公司 | Ultra-high precision radar level gauge calibration device and method |
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