Measurement calibration system of high-precision radar level meter
Through the design of the adjustment baffle mechanism and multiple sets of grids, the problem of low calibration efficiency of high-precision radar level meter measurement is solved, and efficient and accurate calibration results are achieved.
Patent Information
- Application Number
- CN202422227377.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The measurement and calibration system of existing high-precision radar level meters is inefficient and requires multiple measurements to ensure accuracy, making it impossible to perform efficient calibration.
The adjustment baffle mechanism is adopted, including a mounting frame, support legs, grids, cylinders and reflectors. The reflectors are driven to lift and lower by cylinders, and combined with multiple sets of grids and signal transmitters, the precise blocking and reception of microwave pulses is achieved to ensure measurement accuracy and efficiency.
It improves the measurement and calibration efficiency and accuracy of the radar level gauge, reduces manual adjustment work, ensures high-precision measurement, and reduces repeated calibration work.
Smart Images
Figure CN223077723U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of measurement and calibration, and particularly to a measurement and calibration system for a high-precision radar level gauge. Background Technique
[0002] A high-precision radar level gauge is an instrument that uses radar technology to determine the height or level of materials in a container by transmitting and receiving radio waves. The high-precision radar level gauge uses the microwave pulse principle, emits extremely short microwave pulses with very low energy through the antenna system, and receives the microwave signals reflected from the surface of the materials. The radar wave travels at the speed of light, and its travel time can be converted into a level signal by electronic components. This special time extension method can ensure stable and accurate measurement in a very short time.
[0003] However, in the existing measurement and calibration systems for high-precision radar level gauges, a single transmitter measurement component is mostly used. The accuracy of the measurement needs to be rechecked, and at the same time, multiple measurements are required for measurements at different distances, resulting in general measurement and calibration efficiency for high-precision radar level gauges. Content of the Utility Model
[0004] The purpose of the utility model is to provide a measurement and calibration system for a high-precision radar level gauge to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] The utility model discloses a measurement and calibration system for a high-precision radar level gauge in the first aspect, including a mounting base, a moving frame, a signal transmitter, a signal receiver, and an adjusting baffle mechanism. The moving frame is arranged on the top of the mounting base, the signal transmitter is installed on one side of the moving frame, the signal receiver is installed on the other side of the moving frame, and the adjusting baffle mechanism is installed at one end of the mounting base.
[0007] The adjusting baffle mechanism includes a mounting frame, support legs, a grid, a first cylinder, a first reflector, a second cylinder, and a second reflector. The mounting frame is fixedly connected to one end of the mounting base, the support legs are fixedly connected to the bottom of the mounting frame, the grid is installed inside the mounting frame, the first cylinder is fixedly connected to the outside of the mounting frame, the first reflector is arranged inside the mounting frame, the second cylinder is installed above the first cylinder, and the second reflector is installed above the inside of the mounting frame. By using the first cylinder to drive the first reflector to rise and fall, the space between the grids is blocked, so as to calibrate and measure the high-precision radar level gauge and ensure the accuracy of the measurement.
[0008] Preferably, the number of the square grids is five groups, and the distance between each square grid is two meters. Through the design of multiple groups of square grids in cooperation with the first reflector, measurement calibration can be carried out at multiple positions to ensure the accuracy of measurement.
[0009] Preferably, a connecting plate is arranged at the top of the first cylinder, and one end of the connecting plate is fixedly connected with the first reflector. Therefore, the first cylinder can drive the first reflector to move up and down for adjustment. Similarly, the second cylinder can drive the second reflector to move up and down for adjustment, so as to facilitate the adjustment setting of measurement calibration, reduce the manual adjustment work, and improve the efficiency of measurement calibration.
[0010] Preferably, the number of the signal transmitters is two groups, which are respectively arranged at the upper and lower ends of the mobile rack. The two groups of signal transmitters correspond to the middle positions of the two groups of square grid areas, which is convenient for simultaneously measuring two high-precision radar level gauges, ensuring the accuracy of measurement calibration, reducing the work of repeated calibration, and improving the efficiency of measurement calibration.
[0011] Preferably, sawtooth blocks are arranged inside the square grids. Through the arrangement of the sawtooth blocks, the signal can be enhanced and the interference signal can be suppressed to ensure the accuracy of measurement calibration.
[0012] Preferably, the size of the first reflector is the same as that inside the square grid, so that the first reflector can effectively block the square grid, which is convenient for the first reflector to avoid the reflection of microwave signals.
[0013] Preferably, the number of the first cylinders is two, which are respectively arranged on both sides of the mounting rack. Through the two first cylinders, the lifting of the first reflector is ensured to be stable, which is convenient for carrying out the work of measurement calibration.
[0014] Preferably, a stop block is arranged at the middle position on one side of the mounting rack. The movement of the first reflector is limited by the stop block to ensure that the area of the first reflector within the square grid is in a fixed position, which is convenient for use in calibration measurement.
[0015] The second aspect of the present utility model discloses a measurement calibration method for a high-precision radar level gauge, which is used to execute on the system described in the first aspect. The method includes Step 1 to Step 4;
[0016] Step 1, system initialization, including: installing the signal transmitter and the signal receiver at the specified positions on the mobile rack; starting the calibration system to ensure that the initial positions of all cylinders, reflectors, and square grids are in the standard state, and the system is in the standby mode;
[0017] Step 2, set the state of the adjustment baffle mechanism based on the distance value to be calibrated;
[0018] Step 3, set the state of the mobile rack based on the distance value to be calibrated;
[0019] Step 4, verification of calibration result.
[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0021] 1. For the measurement and calibration system of this high-precision radar level gauge, by adjusting the positions of the first reflector and the second reflector, the microwave pulse is blocked. The microwave signal reflected after the microwave pulse contacts the surface of the first reflector is received by the signal receiver to measure the distance between calibrations, ensuring the high-precision effect of the radar level gauge.
[0022] 2. For the measurement and calibration system of this high-precision radar level gauge, it is convenient to measure two groups of high-precision radar level gauges simultaneously, ensuring the accuracy of measurement and calibration, reducing the work of repeated calibration, and improving the efficiency of measurement and calibration.
[0023] 3. For the measurement and calibration system of this high-precision radar level gauge, the first cylinder and the second cylinder drive the first reflector and the second reflector to move, thus facilitating the adjustment and setting of measurement and calibration, reducing the work of manual adjustment, and improving the efficiency of measurement and calibration. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 is a schematic structural diagram of the whole of the present utility model;
[0025] Figure 2 is a front view schematic diagram of the present utility model;
[0026] Figure 3 is a side view schematic diagram of the present utility model;
[0027] Figure 4 is Figure 1 an enlarged schematic diagram of part A in
[0028] In the figure: 1, mounting base; 2, moving frame; 3, signal transmitter; 4, signal receiver; 5, adjusting baffle mechanism; 501, mounting frame; 502, support leg; 503, grid; 504, first cylinder; 505, first reflector; 506, second cylinder; 507, second reflector; 508, serrated block; 510, connecting plate; 511, stop block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0030] Please refer to Figures 1-4 , the present utility model discloses a measurement and calibration system for a high-precision radar level gauge, which includes a mounting base 1, a moving frame 2, a signal transmitter 3, a signal receiver 4 and an adjusting baffle mechanism 5. The moving frame 2 is arranged on the top of the mounting base 1. The signal transmitter 3 is installed on one side of the moving frame 2, the signal receiver 4 is installed on the other side of the moving frame 2, and the adjusting baffle mechanism 5 is installed at one end of the mounting base 1.
[0031] The adjusting baffle mechanism 5 includes a mounting frame 501, support legs 502, a grid 503, a first cylinder 504, a first reflector 505, a second cylinder 506 and a second reflector 507. The mounting frame 501 is fixedly connected to one end of the mounting base 1. The support legs 502 are fixedly connected to the bottom of the mounting frame 501. The grid 503 is installed inside the mounting frame 501. The first cylinder 504 is fixedly connected to the outside of the mounting frame 501. The first reflector 505 is arranged inside the mounting frame 501. The second cylinder 506 is installed above the first cylinder 504. The second reflector 507 is installed above the inside of the mounting frame 501. By using the first cylinder 504 to drive the first reflector 505 to move up and down, the space between the grids 503 is blocked, so as to calibrate and measure the high-precision radar level gauge, ensuring the accuracy of the measurement. The size of the first reflector 505 is the same as that inside the grid 503, so that the first reflector 505 can effectively block the grid 503, facilitating the comparison of the first reflector 505 to avoid the reflection of microwave signals. The number of the first cylinders 504 is two, which are respectively arranged on both sides of the mounting frame 501. By using two first cylinders 504, the lifting of the first reflector 505 is ensured to be stable, facilitating the work of measurement and calibration. A stop block 511 is arranged at the middle position on one side of the mounting frame 501. The movement of the first reflector 505 is limited by the stop block 511, ensuring that the area of the first reflector 505 within the grid 503 is a fixed position, facilitating the use of calibration measurement.
[0032] The number of the grids 503 is five groups, and the spacing between each grid 503 is two meters. Through the design of multiple groups of grids 503 in cooperation with the first reflector 505, multiple positions can be measured and calibrated to ensure the accuracy of the measurement. A connecting plate 510 is arranged at the top of the first cylinder 504, and one end of the connecting plate 510 is fixedly connected to the first reflector 505. Therefore, the first cylinder 504 can drive the first reflector 505 to move up and down for adjustment. Similarly, the second cylinder 506 can drive the second reflector 507 to move up and down for adjustment, thus facilitating the adjustment setting of the measurement and calibration, reducing the manual adjustment work, and improving the efficiency of the measurement and calibration.
[0033] There are two groups of signal transmitters 3, which are respectively arranged at the upper and lower ends of the mobile rack 2. The two groups of signal transmitters 3 correspond to the middle positions of the two groups of grid 503 areas, facilitating the simultaneous measurement of two high-precision radar level gauges, ensuring the accuracy of measurement calibration, reducing the work of repeated calibration, improving the efficiency of measurement calibration. There is a serrated block 508 inside the grid 503. Through the setting of the serrated block 508, the signal can be enhanced and the interference signal can be suppressed to ensure the accuracy of measurement calibration.
[0034] When in use, the two groups of signal transmitters 3 are installed on the mounting base 1, and then microwave pulses are shot into the grid 503. By adjusting the positions of the first reflector 505 and the second reflector 507, the microwave pulses are blocked. The microwave signals reflected after the microwave pulses contact the surface of the first reflector 505 are received by the signal receiver 4 to measure the distance between calibrations and ensure the high-precision effect of the radar level gauge.
[0035] Compare the microwave signal data obtained after calibration with the standard data to confirm whether the calibration accuracy meets the predetermined requirements. If there is a deviation, re-adjust the calibration of the relevant grid.
[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A measurement calibration system for a high-precision radar level gauge, comprising a mounting base (1), a moving frame (2), a signal transmitter (3), a signal receiver (4) and an adjusting baffle mechanism (5), characterized in that: The movable frame (2) is arranged on the top of the mounting base (1). The signal transmitter (3) is installed on one side of the movable frame (2). The signal receiver (4) is installed on the other side of the movable frame (2). The adjusting baffle mechanism (5) is installed at one end of the mounting base (1). The adjusting baffle mechanism (5) includes a mounting frame (501), support legs (502), a grid (503), a first cylinder (504), a first reflector (505), a second cylinder (506) and a second reflector (507). The mounting frame (501) is fixedly connected to one end of the mounting base (1). The support legs (502) are fixedly connected to the bottom of the mounting frame (501). The grid (503) is installed inside the mounting frame (501). The first cylinder (504) is fixedly connected to the outside of the mounting frame (501). The first reflector (505) is arranged inside the mounting frame (501). The second cylinder (506) is installed above the first cylinder (504). The second reflector (507) is installed above the inside of the mounting frame (501).
2. The measurement calibration system of the high-precision radar level gauge according to claim 1, characterized in that: The number of the grids (503) is five groups, and the distance between each grid (503) is two meters.
3. The measurement and calibration system of the high-precision radar level gauge according to claim 1, characterized in that: A connecting plate (510) is arranged at the top of the first cylinder (504), and one end of the connecting plate (510) is fixedly connected to the first reflector (505).
4. The measurement and calibration system of the high-precision radar level gauge according to claim 1, characterized in that: The number of the signal transmitters (3) is two groups, which are respectively arranged at the upper and lower ends of the movable frame (2), and the two groups of signal transmitters (3) correspond to the middle positions of two grid (503) areas.
5. The measurement calibration system of the high-precision radar level gauge according to claim 1, wherein: Jagged blocks (508) are arranged inside the grid (503).
6. The measurement calibration system of the high-precision radar level gauge according to claim 1, characterized in that: The size of the first reflector (505) is the same as that inside the grid (503).
7. The measurement and calibration system of the high-precision radar level gauge according to claim 1, characterized in that: The number of the first cylinders (504) is two, which are respectively arranged on both sides of the mounting frame (501).
8. The measurement and calibration system of the high-precision radar level gauge according to claim 1, characterized in that: A stop block (511) is arranged at the middle position on one side of the mounting frame (501).