Radar level meter calibration device

Abstract

The utility model discloses a radar level meter calibration device, which relates to the technical field of industrial instruments, and comprises a seat body, a mounting seat, a sliding block, a reflecting plate, a driving assembly and a controller, the top of the seat body is provided with a mounting groove, the mounting seat is fixedly connected to the first end of the seat body, and the top of the mounting seat is provided with a level meter mounting station; the level meter mounting station is used for detachably and fixedly connecting a radar level meter needing to be calibrated; the sliding block is slidably connected into the mounting groove; the reflecting plate can be detachably and fixedly connected to the top of the sliding block, and the reflecting plate serves as a reflecting face of microwave pulses of the radar level meter needing to be calibrated to provide reflecting signals for the level meter. The driving assembly drives the sliding block to slide in the mounting groove and keep the position after sliding; the controller is in signal connection with the driving assembly and can control the driving assembly to drive the sliding block to slide to the design position, the structure is simple, use is convenient, calibration efficiency is effectively improved, and labor cost is effectively reduced.

Description

Technical Field

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

[0002] Radar level meters utilize microwave pulse measurement and operate within the industrial frequency band. Their low beam energy allows them to be installed in various metal and non-metal containers or pipelines, providing non-contact, continuous level measurement of liquids, slurries, and granular materials. They are suitable for applications involving dust, large temperature and pressure fluctuations, and the presence of inert gases and vapors. Radar level meters are harmless to both humans and the environment and are unaffected by changes in the specific gravity of the medium or dielectric constant.

[0003] At present, most manufacturers and testing institutions use the "trolley" simulation measurement method, also known as the environmental simulation method, to calibrate non-contact radar level meters. The specific steps are: use a movable workbench with wheels (four or three wheels), stick a ruler on the ground, place the non-contact radar level meter under test on the movable workbench, and manually push the movable workbench to perform individual accuracy measurements.

[0004] While the "trolley" simulation measurement method is simple, the error in the device's measurement structure is very large. Because the error in the building itself is far greater than that of the instrument, even experienced surveyors can still experience a minimum measurement error of more than 50mm. Furthermore, the "trolley" simulation measurement method only measures a single item and is used by too many people. The random errors that occur during manual measurement and recording are numerous, leading to a large overall error and negating the significance of the test.

[0005] Therefore, the "trolley" simulation measurement method can only meet the basic measurement trend requirements of the instrument and is difficult to achieve precise measurement. Frequent spatial transformations lead to slow test speeds and high labor costs. Utility Model Content

[0006] The purpose of the utility model is to provide a radar level meter calibration device to solve the problems existing in the above-mentioned prior art. It has a simple structure, is easy to use, effectively improves the calibration efficiency, and effectively reduces labor costs.

[0007] To achieve the above purpose, the present invention provides the following solutions:

[0008] The utility model provides a radar level meter calibration device, comprising: a base, a mounting base, a slider, a reflector, a drive assembly and a controller, wherein a mounting groove is provided on the top of the base, and the mounting groove is arranged along the extension direction of the base; the mounting base is used to be fixedly connected to the first end of the base, and a level meter installation station is provided on the top of the mounting base, and the level meter installation station is used to detachably fix the radar level meter to be calibrated; the slider is used to be slidably connected to the mounting groove and can maintain the position after sliding; the reflector is detachably fixedly connected to the top of the slider, and the reflector is used to serve as a reflection surface for the microwave pulse of the radar level meter to be calibrated to provide a reflected signal for the level meter; the drive assembly is used to drive the slider to slide in the mounting groove and maintain the position after sliding; the controller is used to be connected to the drive assembly by signal and can control the drive assembly to drive the slider to slide to a designed position.

[0009] Preferably, the drive assembly includes a servo motor, a reducer and a lead screw, the servo motor is connected to the controller signal, the servo motor is fixedly connected to one end of the base body away from the mounting seat, the servo motor is dynamically connected to the lead screw through the reducer to drive the lead screw to rotate, the lead screw is arranged in the mounting groove, and the end of the lead screw close to the mounting seat is used for rotational connection with the base body.

[0010] Preferably, the controller includes a keypad, which is used to input the distance parameters of the reflective plate. The controller generates a control instruction for the servo motor based on the distance parameters. After receiving the control instruction, the servo motor rotates a corresponding number of circles, thereby driving the reflective plate to move to the corresponding position.

[0011] Preferably, a slide is provided on each side of the slider, and two linear slide rails are provided on the top of the seat body. The two linear slide rails are arranged parallel to the mounting groove and are respectively arranged on both sides of the mounting groove. One slide is used to be slidably connected in one of the linear slide rails.

[0012] Preferably, it further comprises a threaded rod, the top end of the threaded rod is fixedly connected to the reflective plate, a threaded hole is provided on the top of the slider, and the threaded rod is used to be threadedly connected in the threaded hole.

[0013] Preferably, it also includes a mounting plate and a plurality of mounting posts, the mounting plate being vertically fixedly connected to the top of the mounting seat, a through hole being provided in the middle of the mounting plate, each of the mounting plates being vertically fixedly connected to a side of the mounting plate away from the reflector along the circumference of the through hole, each of the mounting posts being used to insert the radar level meter that needs to be calibrated to fix the radar level meter that needs to be calibrated, and the working surface of the radar level meter that needs to be calibrated passes through the through hole to face the reflector.

[0014] Preferably, it further comprises a ruler and a pointer, wherein the ruler is fixedly connected to one side of the base body, and the pointer is fixedly connected to a side of the slider close to the ruler and can indicate the scale on the ruler.

[0015] Preferably, it further comprises a flexible pad, wherein the flexible pad is fixedly connected to the bottom of the seat.

[0016] Compared with the prior art, the utility model has achieved the following technical effects:

[0017] The utility model provides a radar level meter calibration device, which adjusts the relative position between the reflector and the radar level meter to be calibrated installed at the other end of the base body by a driving component. The calibration operation of the radar level meter is convenient and has a high degree of automation, which reduces the complexity of manual operation, saves calibration time and cost, reduces labor costs, and increases benefits for enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic structural diagram of the radar level meter calibration device provided by the utility model in the front view direction;

[0020] Figure 2 This is a schematic diagram of the structure of the radar level meter calibration device provided by the utility model in the back view direction;

[0021] Figure 3 This is a schematic diagram of the structure of the radar level meter calibration device provided by the utility model in a top view direction;

[0022] Figure 4 This is a schematic diagram of the structure of the radar level meter calibration device provided by the utility model in an upward direction;

[0023] Figure 5This is a structural diagram of the reflector and the slider in the radar level meter calibration device provided by the utility model;

[0024] In the figure: 1. base; 2. slider; 3. reflector; 5. servo motor; 7. lead screw; 9. mounting base; 10. linear guide rail; 11. bearing seat; 12. reducer; 13. through hole; 14. mounting column; 15. ruler; 16. flexible pad; 17. pointer; 18. threaded rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The purpose of the utility model is to provide a radar level meter calibration device to solve the problems existing in the above-mentioned prior art. It has a simple structure, is easy to use, effectively improves the calibration efficiency, and effectively reduces labor costs.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] The utility model provides a radar level meter calibration device, such as Figures 1 to 5 As shown, it includes: a base 1, a mounting base 9, a slider 2, a reflector 3, a drive assembly and a controller. A mounting groove is provided on the top of the base 1, and the mounting groove is arranged along the extension direction of the base 1; the mounting base 9 is used to be fixedly connected to the first end of the base 1, and a level meter installation station is provided on the top of the mounting base 9, which is used to detachably fix the radar level meter that needs to be calibrated; the slider 2 is used to be slidably connected to the mounting groove and can maintain the position after sliding; the reflector 3 is detachably fixed to the top of the slider 2, and the reflector 3 is used to serve as a reflection surface for the microwave pulse of the radar level meter that needs to be calibrated to provide a reflected signal for the level meter; the drive assembly is used to drive the slider 2 to slide in the mounting groove and maintain the position after sliding; the controller is used to be connected to the drive assembly by signal and can control the drive assembly to drive the slider 2 to slide to the designed position. Through the coordinated action of the base 1, the mounting base 9, the slider 2, the reflector 3, the drive assembly and the controller, automatic calibration of the radar level meter is realized. The mounting groove on the base body 1 provides a track for the sliding of the slider 2. The mounting seat 9 facilitates the fixation of the radar level meter to be calibrated. The reflector 3 provides a reflected signal for the level meter. The drive assembly and controller realize precise control of the position of the slider 2, thereby improving the accuracy and efficiency of the calibration.

[0029] In a preferred embodiment, the drive assembly includes a servo motor 5, a reducer 12, and a lead screw 7. The servo motor 5 is connected to the controller signal. The servo motor 5 is fixedly connected to the end of the base body 1 away from the mounting seat 9. The servo motor 5 is kinetically connected to the lead screw 7 through the reducer 12 to drive the lead screw 7 to rotate. The lead screw 7 is arranged in the mounting groove, and the end of the lead screw near the mounting seat 9 is used for rotational connection with the base body 1. The drive assembly composed of the servo motor 5, the reducer 12, and the lead screw 7 can provide precise power output to ensure smooth sliding of the slider 2 in the mounting groove. The reducer 12 can adjust the motor speed to make the rotation of the lead screw 7 more stable, thereby improving the accuracy of the position adjustment of the slider 2.

[0030] In a preferred embodiment, bearing blocks 11 are provided at both ends of the mounting groove, each bearing being mounted on the bearing blocks 11. The ends of the lead screw 7 are rotatably connected to the base via the bearings. By providing the bearing blocks 11 and mounting the bearings at both ends of the mounting groove, the lead screw 7 can be smoothly rotatably connected to the base 1. This connection reduces frictional resistance during the rotation of the lead screw 7, improving the rotation efficiency and precision of the lead screw 7, thereby ensuring smooth sliding of the slider 2 within the mounting groove and further improving the accuracy and stability of the position adjustment of the reflector 3.

[0031] In a preferred embodiment, the controller includes a keypad for inputting distance parameters for reflector 3. The controller generates control instructions for servo motor 5 based on the distance parameters. Upon receiving the control instructions, servo motor 5 rotates a corresponding number of times, thereby driving reflector 3 to the corresponding position. The controller's keypad facilitates operator input of distance parameters for reflector 3. The controller generates control instructions based on the parameters, precisely controlling the rotation of servo motor 5 and achieving precise adjustment of the position of reflector 3. This automated control method improves calibration efficiency and accuracy.

[0032] In a preferred embodiment, a slide member is provided on each side of the slider 2, and two linear guide rails 10 are provided on the top of the base 1. The two linear guide rails 10 are arranged parallel to the mounting slot and are respectively provided on either side of the mounting slot. A slide member is slidably connected within each linear guide rail 10. The slide members on both sides of the slider 2 cooperate with the linear guide rail 10 on the top of the base 1, ensuring the stability and linearity of the slider 2 during the sliding process. The provision of two linear guide rails 10 further improves the movement accuracy of the slider 2, ensuring that the reflector 3 can be accurately moved to the specified position.

[0033] In a preferred embodiment, the radar level gauge calibration device further includes a threaded rod 18, the top end of which is fixedly connected to the reflector 3. The top of the slider 2 is provided with a threaded hole, into which the threaded rod 18 is threadedly connected. The threaded rod 18 connects the reflector 3 to the slider 2, allowing the reflector 3 to be easily removed when not in use, reducing floor space and facilitating storage and transportation of the device. Furthermore, the threaded connection ensures the stability of the reflector 3 during use.

[0034] In a preferred embodiment, the radar level meter calibration device further includes a mounting plate and a plurality of mounting posts 14. The mounting plate is vertically fixedly connected to the top of the mounting seat 9. A through hole 13 is provided in the middle of the mounting plate. Each mounting plate is vertically fixedly connected to the side of the mounting plate away from the reflector 3 along the circumference of the through hole 13. Each mounting post 14 is used to insert the radar level meter to be calibrated to fix the radar level meter to be calibrated. The working surface of the radar level meter to be calibrated extends from the through hole 13 to face the reflector 3. The arrangement of the mounting plate and the mounting posts 14 provides a stable fixing method for the radar level meter to be calibrated, ensuring that the level meter will not move during the calibration process. The design of the through hole 13 enables the working surface of the level meter to accurately face the reflector 3, thereby improving the accuracy of the calibration.

[0035] In a preferred embodiment, the radar level gauge calibration device further includes a scale 15 and a pointer 17. The scale 15 is fixedly connected to one side of the base 1, and the pointer 17 is fixedly connected to the side of the slider 2 near the scale 15 and can indicate the scale on the scale 15. The arrangement of the scale 15 and the pointer 17 can intuitively display the position of the slider 2, making it convenient for the operator to monitor and adjust the position of the reflector 3. It can also be used to confirm the accuracy of the servo motor 5, thereby improving the reliability of the calibration.

[0036] In a preferred embodiment, the radar level gauge calibration device further includes a flexible pad 16 fixedly connected to the bottom of the base 1. The flexible pad 16 provides flexible support and cushioning for the base 1, preventing damage to internal components of the device caused by collisions with the base 1 during use or transportation. It also reduces vibration during operation and improves calibration accuracy.

[0037] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A radar level meter calibration device, characterized in that: include: A seat body, wherein a mounting groove is provided on the top of the seat body and the mounting groove is provided along the extension direction of the seat body; A mounting seat, the mounting seat being fixedly connected to the first end of the base body, a level meter installation station being provided on the top of the mounting seat, the level meter installation station being used for detachably fixing a radar level meter that needs to be calibrated; a slider, the slider being adapted to be slidably connected to the mounting groove and capable of maintaining a position after sliding; a reflector, the reflector being detachably fixedly connected to the top of the slider and being used to serve as a reflection surface for the microwave pulse of the radar level meter to be calibrated, thereby providing a reflected signal for the level meter; a driving assembly, the driving assembly being used to drive the slider to slide in the mounting groove and maintain the position after sliding; as well as A controller is used to be connected to the driving component by signal and can control the driving component to drive the slider to slide to a designed position.

2. The radar level meter calibration device according to claim 1, characterized in that: The drive assembly includes a servo motor, a reducer and a lead screw. The servo motor is connected to the controller signal. The servo motor is fixedly connected to one end of the base body away from the mounting seat. The servo motor is movably connected to the lead screw through the reducer to drive the lead screw to rotate. The lead screw is arranged in the mounting groove, and the end of the lead screw close to the mounting seat is used for rotational connection with the base body.

3. The radar level meter calibration device according to claim 2, characterized in that: The controller includes a keypad, which is used to input the distance parameters of the reflector. The controller generates a control instruction for the servo motor based on the distance parameters. After receiving the control instruction, the servo motor rotates a corresponding number of circles, thereby driving the reflector to move to the corresponding position.

4. The radar level meter calibration device according to claim 3, characterized in that: A slide is provided on each side of the slider, and two linear slide rails are provided on the top of the seat body. The two linear slide rails are arranged parallel to the mounting groove and are respectively arranged on both sides of the mounting groove. One slide is used to be slidably connected in one of the linear slide rails.

5. The radar level meter calibration device according to claim 4, characterized in that: It also includes a threaded rod, the top end of which is fixedly connected to the reflector plate, and the top of the slider is provided with a threaded hole, and the threaded rod is used to be threadedly connected to the threaded hole.

6. The radar level meter calibration device according to claim 5, characterized in that: It also includes a mounting plate and a plurality of mounting posts, wherein the mounting plate is vertically fixedly connected to the top of the mounting seat, a through hole is provided in the middle of the mounting plate, each of the mounting plates is vertically fixedly connected to a side of the mounting plate away from the reflecting plate along the circumference of the through hole, each of the mounting posts is used to insert the radar level meter that needs to be calibrated to fix the radar level meter that needs to be calibrated, and the working surface of the radar level meter that needs to be calibrated passes through the through hole to face the reflecting plate.

7. The radar level meter calibration device according to claim 6, characterized in that: The utility model also comprises a ruler and a pointer. The ruler is fixedly connected to one side of the base body, and the pointer is fixedly connected to a side of the slider close to the ruler and can indicate the scale on the ruler.

8. The radar level meter calibration device according to claim 1, characterized in that: It also includes a flexible pad, which is fixedly connected to the bottom of the seat.

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