Radar level meter calibration device

Abstract

The utility model provides a radar level meter calibration device which comprises a base plate, a clamping assembly and a calibration assembly, a mounting seat is arranged on the base plate, the clamping assembly is arranged on the mounting seat, the clamping assembly is used for clamping a radar level meter, the calibration assembly comprises a calibration plate, and the calibration plate is arranged on the mounting seat. The installation seat is provided with a base plate and a calibration plate, the calibration plate is arranged on the base plate in a sliding mode, the installation seat is further provided with a plurality of range finders, the range finders are installed around the radar level meter, and the range finders are used for sending distance information to the calibration plate. The surface of the radar level meter and the surface of the calibration plate are ensured to be parallel, the test or calibration result is reliable, the clamping tool adopts circular holes with different diameters, different circular holes can be selected for clamping according to the diameters of products, the time for replacing the tool and debugging the tool due to different products is saved, and the working efficiency is improved. Meanwhile, the calibration plate can move through the servo motor, and the measuring range is controllable and adjustable.

Description

Technical Field

[0001] The utility model relates to the field of testing equipment, in particular to a radar level meter calibration device. Background Art

[0002] Radar level meter is a device used to measure the level of liquid or solid materials in containers or tanks. It measures the distance from the material surface to the radar antenna by sending radar waves and receiving reflected waves, thereby determining the water level of the material. Radar level meter has the characteristics of high precision, stability and wide adaptability, and can be used in chemical, petroleum, food processing and other fields. When debugging and testing radar level meter products, a theoretical value is required as a distance standard for testing or calibration. At the same time, it is best to be able to adjust the distance at any time to meet the needs of different ranges. However, the existing test system has the following technical problems: the distance of the existing test system is fixed and cannot be adjusted, and the calibration and test accuracy of the radar level meter products at various locations cannot be met. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a radar level meter calibration device to solve the technical problems in the prior art that the distance of the test system is fixed and cannot be adjusted, and the calibration and test accuracy of the radar level meter product at various positions cannot be met.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a radar level meter calibration device, comprising:

[0005] a base plate, on which a mounting seat is provided;

[0006] A clamping assembly, the clamping assembly is arranged on the mounting seat, and the clamping assembly is used to clamp the radar level meter;

[0007] A calibration component, the calibration component comprising a calibration plate, the calibration plate being slidably disposed on the base plate;

[0008] The mounting seat is also provided with a plurality of rangefinders, which are installed around the radar level meter and are used to send distance information to the calibration plate.

[0009] The advantage of adopting the above technical solution is that, when in use, the radar level meter is placed near the clamping assembly, the rangefinder is turned on to obtain distance information, a certain pulse is emitted to the servo motor, the calibration plate is driven to move to the specified distance, and the distance measured by the rangefinder is used as the standard value to test the product accuracy of the radar level meter, or to calibrate the radar level meter. Multiple rangefinders are used to form three points and one plane, which ensures that the position relationship between the surface of the radar level meter and the surface of the calibration plate is parallel, so that the test or calibration results are reliable, and the calibration and test accuracy of the radar level meter product at each position point are met.

[0010] Optionally, the radar level meter calibration device further comprises a driving component for driving the calibration plate to approach or move away from the mounting seat, and a receiver is provided on the driving component for receiving distance information sent by the rangefinder.

[0011] Optionally, the clamping assembly includes an upper clamping plate and a lower clamping plate, the upper clamping plate is provided with an upper clamping opening at the clamping end facing the lower clamping plate, and the lower clamping plate is also provided with a lower clamping opening towards the clamping portion of the upper clamping plate, and a clamping hole is formed when the upper clamping opening and the lower clamping opening are closed.

[0012] Optionally, the upper clamping opening and the lower clamping opening are stepped semicircular rings for providing the clamping holes with different diameters.

[0013] Optionally, the clamping assembly further includes a power unit, and the power unit is used to drive the upper clamping plate and the lower clamping plate to move closer to each other or away from each other respectively.

[0014] Optionally, the calibration component includes a frame, the driving component includes a servo motor and a slide rail, the frame is slidably arranged on the slide rail, and the servo motor forms the above-mentioned receiver.

[0015] Optionally, a travel track is further provided on the base plate, and a pulley is provided below the frame, and the pulley slides along the length direction of the travel track.

[0016] Optionally, the calibration plate is perpendicular to a moving direction of the rack, and the calibration plate is at the same distance from all the rangefinders.

[0017] Optionally, a cable protection chain is also provided on the base plate, and the cable protection chain is used to place and protect various electric wires and air pipes of the system.

[0018] Optionally, the power unit is a cylinder, and a guide mechanism is further provided on the mounting seat, and the guide mechanism is used to guide the movement of the upper clamping plate and the lower clamping plate.

[0019] As described above, a radar level meter calibration device of the utility model has the following beneficial effects: when in use, the radar level meter is placed near the clamping assembly, the rangefinder is turned on to obtain distance information, a certain pulse is emitted to the servo motor, the calibration plate is driven to move to the specified distance, and the distance measured by the rangefinder is used as the standard value to test the product accuracy of the radar level meter, or to calibrate the radar level meter. A plurality of rangefinders are used to form a three-point plane, which ensures that the position relationship between the surface of the radar level meter and the surface of the calibration plate is parallel, so that the test or calibration result is reliable, and the calibration and test accuracy of the radar level meter product at each position point are met. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shown is a schematic diagram of the structure of an embodiment of the utility model;

[0021] Figure 2 Shown is a left side view of an embodiment of the utility model;

[0022] Figure 3 Shown is a top view of an embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure in one embodiment of the utility model.

[0024] Part Number Description

[0025] 1 substrate

[0026] 101 Mount

[0027] 102 positioning plate

[0028] 2 Clamping assembly

[0029] 201 Upper splint

[0030] 202 lower splint

[0031] 3 Calibration components

[0032] 301 Calibration Plate

[0033] 302 rack

[0034] 4 Drive components

[0035] 401 Servo Motor

[0036] 402 Slide Rail

[0037] 5. Rangefinder

[0038] 6 Cable protection chain

[0039] 7 Radar level meter DETAILED DESCRIPTION

[0040] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0041] See also Figures 1 to 4 . It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the utility model in a schematic manner. The illustrations only show the components related to the utility model rather than being drawn according to the number, shape and size of the components during actual implementation. During implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complex. The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. They are not used to limit the restrictive conditions for the implementation of the utility model, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the utility model without affecting the effects and purposes that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of the implementation of the present utility model without substantially changing the technical content.

[0042] See also Figures 1 to 4 As shown, the utility model provides a radar level meter calibration device, comprising:

[0043] A substrate 1, on which a mounting seat 101 is provided;

[0044] A clamping assembly 2, wherein the clamping assembly 2 is arranged on the mounting seat 101, and the clamping assembly 2 is used to clamp the radar level meter 7;

[0045] A calibration component 3, wherein the calibration component 3 comprises a calibration plate 301, and the calibration plate 301 is slidably disposed on the substrate 1;

[0046] The mounting base 101 is further provided with a plurality of rangefinders 5 , which are installed around the radar level meter 7 . The rangefinders 5 are used to send distance information to the calibration plate 301 .

[0047] The rangefinder 5 is a laser rangefinder;

[0048] The mounting base 101 includes a positioning plate 102, and a test hole is provided on the positioning plate 102. The radar level meter 7 faces the calibration plate 301 through the test hole, wherein three rangefinders 5 are respectively arranged above and on both sides of the test hole of the positioning plate 102, and the clamping assembly 2 is installed on the side of the positioning plate 102. The upper end and both side edges of the positioning plate 102 are bent to form a mounting plane, and the rangefinders 5 are respectively arranged on the mounting plane.

[0049] When in use, the radar level meter 7 is placed near the clamping assembly 2, the rangefinder 5 is turned on to obtain distance information, a certain pulse is sent to the servo motor 401, and the calibration plate 301 is driven to move to a specified distance. The distance measured by the rangefinder 5 is used as a standard value to test the product accuracy of the radar level meter 7, or to calibrate the radar level meter 7;

[0050] Exemplarily, the calibration device of the radar level meter 7 further includes a driving component 4 for driving the calibration plate 301 to move closer to or away from the mounting seat 101 . The driving component 4 is provided with a receiver for receiving distance information sent by the rangefinder 5 .

[0051] It should also be noted that the driving component 4 can drive the calibration plate 301 according to the distance information sent by the distance meter 5, so that the range is controllable and adjustable.

[0052] Exemplarily, the clamping assembly 2 includes an upper clamping plate 201 and a lower clamping plate 202, wherein the clamping end of the upper clamping plate 201 facing the lower clamping plate 202 is provided with an upper clamping opening, and the clamping portion of the lower clamping plate 202 facing the upper clamping plate 201 is also provided with a lower clamping opening, and a clamping hole is formed when the upper clamping opening and the lower clamping opening are closed.

[0053] It should also be noted that, under the push of the cylinder, the upper clamping plate 201 and the lower clamping plate 202 clamp the radar level meter 7.

[0054] Exemplarily, the upper clamping opening and the lower clamping opening are stepped semicircular rings, which are used to provide the clamping holes with different diameters.

[0055] It should also be noted that a stepped semicircular ring is provided, and the clamping tooling uses clamping holes of different diameters. Different holes can be selected for clamping according to the diameter of the product, saving time for replacing tooling for different products and debugging tooling.

[0056] Exemplarily, the clamping assembly 2 further includes a power unit, and the power unit is used to drive the upper clamping plate 201 and the lower clamping plate 202 to move closer to each other or away from each other.

[0057] Exemplarily, the calibration component 3 includes a frame 302, and the driving component 4 includes a servo motor 401 and a slide rail 402. The frame 302 is slidably disposed on the slide rail 402, and the servo motor 401 forms the above-mentioned receiver.

[0058] It should also be noted that the calibration plate can be moved by a servo motor and the range is controllable and adjustable.

[0059] Exemplarily, a travel track is further provided on the base plate 1 , and a pulley is provided below the frame 302 , and the pulley slides along the length direction of the travel track.

[0060] Exemplarily, the calibration plate 301 is perpendicular to the moving direction of the rack 302 , and the calibration plate 301 is at the same distance from all the rangefinders 5 .

[0061] Exemplarily, a cable protection chain 6 is also provided on the base plate 1, and the cable protection chain 6 is used to place and protect various wires and air pipes of the system.

[0062] Exemplarily, the power unit is a cylinder, and a guide mechanism is further provided on the mounting seat 101 , and the guide mechanism is used to guide the movement of the upper clamping plate 201 and the lower clamping plate 202 .

[0063] In summary, a calibration device for a radar level meter 7 using the utility model has the following advantages: a plurality of laser rangefinders are used to form a three-point plane, which ensures that the surface of the radar level meter 7 is parallel to the surface of the calibration plate, so that the test or calibration result is reliable; the clamping tooling uses circular holes of different diameters, and different circular holes can be selected for clamping according to the diameter of the product, saving the time for replacing tooling for different products and debugging the tooling; at the same time, the calibration plate can be moved by a servo motor, and the range is controllable and adjustable.

[0064] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A radar level meter calibration device, used for testing a radar level meter, characterized in that: include: A substrate (1), wherein a mounting seat (101) is provided on the substrate (1); A clamping assembly (2), the clamping assembly (2) being arranged on the mounting seat (101), and the clamping assembly (2) being used for clamping the radar level meter; A calibration component (3), the calibration component (3) comprising a calibration plate (301), the calibration plate (301) being slidably disposed on the substrate (1); A plurality of rangefinders (5) are also provided on the mounting seat (101), and the plurality of rangefinders (5) are installed around the radar level meter. The rangefinders (5) are used to send distance information to the calibration plate (301).

2. The radar level meter calibration device according to claim 1, characterized in that: The radar level meter calibration device further comprises a driving component (4) for driving the calibration plate (301) to move closer to or farther from the mounting seat (101); the driving component (4) is provided with a receiver for receiving distance information sent by the rangefinder (5).

3. The radar level meter calibration device according to claim 2, characterized in that: The clamping assembly (2) comprises an upper clamping plate (201) and a lower clamping plate (202); an upper clamping opening is provided at the clamping end of the upper clamping plate (201) facing the lower clamping plate (202); a lower clamping opening is provided at the clamping portion of the lower clamping plate (202) facing the upper clamping plate (201); a clamping hole is formed when the upper clamping opening and the lower clamping opening are closed.

4. The radar level meter calibration device according to claim 3, characterized in that: The upper clamping opening and the lower clamping opening are stepped semicircular rings, which are used to provide the clamping holes with different diameters.

5. The radar level meter calibration device according to claim 4, characterized in that: The clamping assembly (2) further comprises a power unit, wherein the power unit is used to respectively drive the upper clamping plate (201) and the lower clamping plate (202) to move closer to each other or away from each other.

6. The radar level meter calibration device according to claim 5, characterized in that: The calibration component (3) comprises a frame (302), and the drive component (4) comprises a servo motor (401) and a slide rail (402). The frame (302) is slidably arranged on the slide rail (402), and the servo motor (401) forms the above-mentioned receiver.

7. The radar level meter calibration device according to claim 6, characterized in that: The base plate (1) is also provided with a running track, and a pulley is provided below the frame (302), and the pulley slides along the length direction of the running track.

8. The radar level meter calibration device according to claim 7, characterized in that: The calibration plate (301) is perpendicular to the moving direction of the frame (302), and the calibration plate (301) is at the same distance from all the rangefinders (5).

9. The radar level meter calibration device according to claim 8, characterized in that: The base plate (1) is also provided with a cable protection chain (6), and the cable protection chain (6) is used to place and protect various types of electric wires and air pipes of the system.

10. The radar level meter calibration device according to claim 9, characterized in that: The power unit is a cylinder, and a guide mechanism is also provided on the mounting seat (101), and the guide mechanism is used to guide the movement of the upper clamping plate (201) and the lower clamping plate (202).

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