Sensor consistency testing device for pipe water cut detection device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2026-08-11
AI Technical Summary
[0002]管式含水率检测装置是一种基于电容原理的土壤分层含水率检测设备，管式含水率检测装置内设有四层含水率传感器；通过测量每层含水率传感器中两铜板间介电常数的变化从而间接反映土壤的含水量；在管式含水率检测装置出厂前需要对其检测的一致性进行测试，以确保管式含水率检测装置内的各层含水率传感器在测量土壤的含水率时的准确性，然而，由于土壤的含水率在不同深度和位置上存在差异，难以保证各层含水率传感器所处的土壤环境完全一致，这使得在实际测试中，工作人员无法准确判断各层含水率传感器的测量结果是否具有一致性，进而导致管式含水率检测装置在实际应用中可能出现测量误差
本申请通过设置测试管体，预设材质的测试管体的介电常数与特定含水率下土壤的介电常数相同，从而为管式含水率检测装置提供一个与实际土壤环境高度相似的测试条件；通过预设材质的测试管体能够确保各含水率传感器在相同的测试条件下进行测量，从而避免因土壤环境差异导致的测量误差，确保管式含水率检测装置测试结果的准确性；通过将管式含水率检测装置安装在测试管体内，并在模拟的特定含水率条件下进行测试，可以准确评估各含水率传感器的测量结果是否具有一致性，确保各含水率传感器在相同条件下能够提供一致的测量数据，从而提高管式含水率检测装置在实际应用中的测量精度和可靠性；本申请的测试装置操作简单，通过将管式含水率检测装置插设在测试装置中，即可快速对其一致性进行测试，整个过程简单快捷，降低了操作难度，提高了工作效率；且本申请的测试装置简单牢固，能重复使用，加工成本低。
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Abstract
Description
Technical Field
[0001] This application relates to the field of testing technology for tubular moisture content detection devices, and more particularly to a sensor consistency testing device in a tubular moisture content detection device. Background Technology
[0002] The tubular moisture content detector is a soil stratification moisture content detection device based on the capacitance principle. It contains four layers of moisture content sensors. The soil moisture content is indirectly reflected by measuring the change in the dielectric constant between two copper plates in each layer of the sensor. Before leaving the factory, the consistency of the detection results needs to be tested to ensure the accuracy of each layer of moisture content sensors in measuring soil moisture content. However, because soil moisture content varies at different depths and locations, it is difficult to guarantee that the soil environment of each layer of moisture content sensors is completely consistent. This makes it difficult for operators to accurately determine whether the measurement results of each layer of moisture content sensors are consistent during actual testing, which may lead to measurement errors in the practical application of the tubular moisture content detector. Summary of the Invention
[0003] In view of this, this application proposes a sensor consistency testing device for a tubular moisture content detection device, which is suitable for testing the consistency of two or more moisture content sensors in a tubular moisture content detection device, including: a test tube, a base and a positioning sleeve; Both the test tube and the positioning sleeve are mounted on the base and detachably connected to the base, with the positioning sleeve located inside the cavity of the test tube. The inner diameter of the test tube is matched with the outer diameter of the tubular moisture content detection device, and the inner diameter of the positioning sleeve is matched with the tip of the tubular moisture content detection device, so that the tubular moisture content detection device can be installed in the tube of the test tube, and the tip of the tubular moisture content detection device is inserted into the tube of the positioning sleeve. The material of the test tube is a preset material.
[0004] In one possible implementation, the test tube and the positioning sleeve are coaxially positioned.
[0005] In one possible implementation, the test tube is pre-made of aluminum.
[0006] In one possible implementation, the test tube wall has a preset thickness, with the preset thickness ranging from 10cm to 40cm.
[0007] In one possible implementation, the ratio of the length of the positioning sleeve to the length of the test tube is 1:7-8.
[0008] In one possible implementation, the base is a circular plate structure with a first threaded groove, and the positioning sleeve has a first external thread at one end near the base, and the positioning sleeve is threadedly connected to the base.
[0009] In one possible implementation, a second threaded groove is provided on the base, and the second threaded groove is coaxially arranged with the first threaded groove; a second external thread is provided at one end of the test tube near the base, and the test tube is threadedly connected to the base.
[0010] In one possible implementation, the sum of the depths of the first and second threaded grooves is the same as the thickness of the base; and a stepped transition structure is formed at the junction of the first and second threaded grooves.
[0011] In one possible implementation, the wall thickness of the test tube is uniform. Beneficial effects of this application This application provides a test tube with a pre-designed material whose dielectric constant is identical to that of the soil at a specific moisture content, thus offering a test condition highly similar to the actual soil environment for the tubular moisture content detection device. The pre-designed material of the test tube ensures that each moisture content sensor measures under the same conditions, avoiding measurement errors caused by differences in soil environment and ensuring the accuracy of the test results. By installing the tubular moisture content detection device inside the test tube and testing under simulated specific moisture content conditions, the consistency of the measurement results from each moisture content sensor can be accurately evaluated, ensuring that each sensor provides consistent measurement data under the same conditions, thereby improving the measurement accuracy and reliability of the tubular moisture content detection device in practical applications. The testing device of this application is simple to operate; by inserting the tubular moisture content detection device into the testing device, its consistency can be quickly tested. The entire process is simple and fast, reducing operational difficulty and improving work efficiency. Furthermore, the testing device of this application is simple, robust, reusable, and has low processing costs.
[0012] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description
[0013] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.
[0014] Figure 1 This paper shows a cross-sectional view of the tubular moisture content consistency testing device of this application; Figure 2 A schematic diagram showing the structure of a tubular moisture content detection device inserted into a fixed sleeve is shown. Figure 3 This diagram shows the structural schematic of the base of this application; Figure 4 The main structure diagram of the tubular moisture content consistency testing device of this application is shown.
[0015] Test tube body—100; base—200; first threaded groove—210; second threaded groove—220; positioning sleeve—300; tubular moisture content detection device—400. Detailed Implementation
[0016] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.
[0017] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0019] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0020] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.
[0021] This application proposes a tubular moisture content consistency testing device, suitable for detecting the consistency of two or more moisture content sensors within a tubular moisture content detection device 400. The device includes: a test tube 100, a base 200, and a positioning sleeve 300. Both the test tube 100 and the positioning sleeve 300 are mounted on the base 200 and detachably connected to it, with the positioning sleeve 300 located within the cavity of the test tube 100. The inner diameter of the test tube 100 is adapted to the outer diameter of the tubular moisture content detection device 400, and the inner diameter of the positioning sleeve 300 matches the tip of the tubular moisture content detection device 400, allowing the tubular moisture content detection device 400 to be installed within the test tube 100, with the tip of the tubular moisture content detection device 400 inserted into the positioning sleeve 300. The test tube 100 is made of a preset material, and the device performs consistency testing on two or more moisture content sensors under specific moisture content conditions.
[0022] It should be noted that the tubular moisture content detection device 400 is a soil stratification moisture content detection device based on the capacitance principle. It contains four layers of sensors, spaced apart along the axial direction of the device. Each sensor layer consists of two copper plates, and the soil moisture content is indirectly reflected by measuring the change in the dielectric constant between the two copper plates. The base 200 provides a mounting foundation and stable support for the test tube 100 and the positioning sleeve 300, preventing damage to the tubular moisture content detection device due to shaking or displacement during testing. The base 200 is offset by 400°; the detachable design of the base 200, test tube 100, and positioning sleeve 300 facilitates quick assembly and disassembly of the testing device by the staff, improving operational efficiency; the length direction of the test tube 100 and the positioning sleeve 300 are perpendicular to the plane where the base 200 is located; the design of the test tube 100 and the positioning sleeve 300 to be adapted to the tubular moisture content testing device 400 ensures the stability of the tubular moisture content testing device 400 during the testing process and reduces the measurement error caused by the shaking of the tubular moisture content testing device 400.
[0023] The positioning sleeve 300 is used to provide accurate positioning for the tubular moisture content detection device 400, ensuring its precise installation position within the test tube 100. The inner diameter of the positioning sleeve 300 is equal to the maximum outer diameter of the tip of the tubular moisture content detection device 400, so that the tip of the tubular moisture content detection device 400 can be smoothly inserted into the positioning sleeve 300 while confining the tubular moisture content detection device 400 within the test tube 100. The test tube 100 is used to provide a uniform standard test medium for the moisture content sensor. The dielectric constant of the preset material of the test tube 100 is the same as that of the soil at a specific moisture content, thereby ensuring that the dielectric signal received by the moisture content sensor during testing is consistent with the real soil environment, avoiding detection errors caused by differences in the medium. The dielectric constant of the preset material of the test tube 100 is a known fixed value (corresponding to a specific moisture content).
[0024] The test tube 100 and positioning sleeve 300 are installed on the base 200. The tubular moisture content detection device 400 is inserted into the cavity of the test tube 100, with the tip of the tubular moisture content detection device 400 inserted into the positioning sleeve 300. The tubular moisture content detection device 400 is activated, and its two or more moisture content sensors measure the dielectric constant of the test tube 100 of the preset material. Based on the measured value of each moisture content sensor, the deviation value between the measured value and the dielectric constant of the test tube 100 of the preset material is calculated to see if it meets the standard deviation threshold. If the deviation values of each moisture content sensor are all within the standard deviation threshold range, it is determined that the measurement consistency of each moisture content sensor under the simulated moisture content condition is good. If the deviation value between any moisture content sensor and the dielectric constant of the test tube 100 of the preset material exceeds the standard deviation threshold range, it is determined that the measurement structure of the tubular moisture content detection device 400 under the simulated moisture content condition is inconsistent, and the operator needs to further inspect and calibrate the tubular moisture content detection device 400.
[0025] The standard deviation threshold ranges from <2.0%.
[0026] This application provides a test tube 100 with a dielectric constant identical to that of the soil at a specific moisture content by setting up a test tube 100. This provides a test condition highly similar to the actual soil environment for the tubular moisture content detection device 400, ensuring that each moisture content sensor measures under the same conditions. This avoids measurement errors caused by differences in soil environment and ensures the accuracy of the test results of the tubular moisture content detection device 400. By installing the tubular moisture content detection device 400 inside the test tube 100 and testing under simulated specific moisture content conditions, the consistency of the measurement results of each moisture content sensor can be accurately evaluated, ensuring that each moisture content sensor can provide consistent measurement data under the same conditions. This improves the measurement accuracy and reliability of the tubular moisture content detection device 400 in practical applications. The test device of this application is simple to operate. By inserting the tubular moisture content detection device 400 into the test device, its consistency can be quickly tested. The whole process is simple and quick, reducing the difficulty of operation and improving work efficiency. Moreover, the test device of this application is simple, robust, reusable, and has low processing costs.
[0027] In one possible implementation, the test tube 100 and the positioning sleeve 300 are coaxially arranged. The coaxial design of the test tube 100 and the positioning sleeve 300 ensures that the distance between each moisture content sensor in the tubular moisture content detection device 400 and the inner wall of the test tube medium remains consistent. This effectively reduces the measurement error caused by the eccentricity of the tubular moisture content detection device 400, ensures that each moisture content sensor measures under the same test conditions, and thus improves the accuracy and consistency of the measurement results of the tubular moisture content detection device 400.
[0028] In one possible implementation, the test tube 100 is pre-made of aluminum, and the wall thickness of the test tube 100 is uniform. The aluminum material of the test tube 100 provides good mechanical properties and chemical stability, enabling it to provide a stable physical and chemical environment and reducing measurement errors caused by changes in material properties. The uniform wall thickness and stable material properties ensure a uniform distribution of the dielectric constant of the test tube 100, thereby reducing measurement errors caused by uneven testing environments and ensuring that all moisture content sensors are tested under the same conditions, further minimizing measurement errors due to uneven testing environments.
[0029] In one possible implementation, the test tube 100 has a preset wall thickness, which ranges from 10cm to 40cm. It should be noted that the dielectric constant of the aluminum test tube 100 can be adjusted by its wall thickness. By selecting an appropriate wall thickness, the dielectric constant of soil under different moisture contents can be simulated. The preset thickness design allows the testing device to flexibly adapt to various testing needs and simulate soil environments under different moisture contents, thereby improving the comprehensiveness and accuracy of the test.
[0030] In one possible implementation, the preset thickness ranges from 10cm to 20cm; preferably, the preset thickness is 10cm, 20cm, 30cm, or 40cm.
[0031] In one possible implementation, the length ratio of the positioning sleeve 300 to the test tube 100 is 1:7-8. It should be noted that the test tube 100 is relatively long enough to accommodate the main body of the tubular moisture content detection device 400, while the positioning sleeve 300 is relatively short. This appropriate length ratio ensures that the positioning sleeve 300 provides sufficient support while avoiding excessive length that would affect the internal space utilization of the test tube 100.
[0032] In one possible implementation, the base 200 has a circular plate structure, a first threaded groove 210 is provided on the base 200, and a first external thread is provided at one end of the positioning sleeve 300 near the base 200, and the positioning sleeve 300 is threadedly connected to the base 200.
[0033] It should be noted that the first threaded groove 210 is coaxially arranged with the base 200, and the first external thread of the positioning sleeve 300 matches the first threaded groove 210. The positioning sleeve 300 and the base 200 are engaged by threads, thereby firmly installing the positioning sleeve 300 on the base 200. The threaded connection can ensure that the positioning sleeve 300 remains stable during the test, reducing measurement errors caused by loosening. At the same time, the installation and disassembly process of the threaded connection is simple and quick, reducing the preparation time and maintenance time of the test device and improving the test efficiency.
[0034] Furthermore, the base 200 has a diameter of 100cm and a thickness of 10cm; the first threaded groove 210 is an M70 threaded groove.
[0035] In one possible implementation, the base 200 has a second threaded groove 220, which is coaxially arranged with the first threaded groove 210; the end of the test tube 100 near the base 200 has a second external thread, and the test tube 100 is threadedly connected to the base 200.
[0036] It should be noted that the coaxial design of the first threaded groove 210 and the second threaded groove 220 ensures that the positioning sleeve 300 and the test tube 100 can be precisely aligned during installation, thereby ensuring that the tubular moisture content detection device 400 maintains a stable axial position during testing and reducing measurement errors caused by eccentricity. The second external thread of the test tube 100 matches the second threaded groove 220, and the test tube 100 is fixedly installed on the base 200 by thread engagement with the second threaded groove 220. The installation and disassembly process of the threaded connection is simple and quick, reducing the preparation and maintenance time of the test device and improving the testing efficiency.
[0037] Furthermore, the second thread groove 220 is an M60 thread groove.
[0038] In one possible implementation, the sum of the depths of the first threaded groove 210 and the second threaded groove 220 is the same as the thickness of the base 200; and a stepped transition structure is formed at the junction of the first threaded groove 210 and the second threaded groove 220.
[0039] It should be noted that the design where the sum of the depths of the first threaded groove 210 and the second threaded groove 220 is the same as the thickness of the base 200 eliminates the need to consider the relationship between the thread insertion depth and the thickness of the base 200 when installing the test tube 100 and the positioning sleeve 300. Operators only need to screw the test tube 100 and the positioning sleeve 300 into the corresponding threaded grooves using normal thread connection methods to ensure correct installation depth. This avoids insecure connections due to excessively shallow threaded grooves or material waste from the base 200 due to excessively deep threaded grooves. The stepped transition structure provides clear positioning markers for the installation of the test tube 100 and the positioning sleeve 300. During installation, operators can more accurately determine the installation depth of the test tube 100 and the positioning sleeve 300 based on the position of the steps, ensuring they are installed in the appropriate positions and improving installation efficiency.
[0040] Furthermore, the depth of the first threaded groove 210 is the same as the depth of the second threaded groove 220.
[0041] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A sensor consistency testing device for pipe moisture content detection devices, which is suitable for detecting the consistency of two or more moisture content sensors in a pipe moisture content detection device, characterized in that, include: Test tube body, base and positioning sleeve; Both the test tube and the positioning sleeve are mounted on the base and detachably connected to the base, and the positioning sleeve is located inside the cavity of the test tube. The inner diameter of the test tube is adapted to the outer diameter of the tubular moisture content detection device, and the inner diameter of the positioning sleeve is matched with the tip of the tubular moisture content detection device, so that the tubular moisture content detection device can be installed in the tube of the test tube, and the tip of the tubular moisture content detection device is inserted into the tube of the positioning sleeve. The test tube is made of a preset material and is suitable for providing a standardized test medium for the sensor in the tubular moisture content detection device. The moisture content sensor consists of two copper plates, and the soil moisture content is indirectly reflected by measuring the change in the dielectric constant between the two copper plates. The tubular moisture content detection device is inserted into the cavity of the test tube, so that two or more moisture content sensors measure the dielectric constant of the test tube of the preset material respectively, and calculate the deviation value between the measured value of the sensor in each tubular moisture content detection device and the dielectric constant of the test tube of the preset material.
2. The sensor uniformity testing device for a tube moisture content detection device according to claim 1, wherein The test tube is coaxially arranged with the positioning sleeve.
3. The sensor uniformity testing device for a tube moisture content detection device according to claim 1, wherein The test tube is made of aluminum.
4. The sensor consistency testing device in the tubular moisture content detection device according to claim 3, characterized in that, The test tube has a preset thickness, and the preset thickness ranges from 10cm to 40cm.
5. The sensor consistency testing device in the tubular moisture content detection device according to claim 1, characterized in that, The ratio of the length of the positioning sleeve to the length of the test tube is 1:7-8.
6. The sensor consistency testing device in the tubular moisture content detection device according to claim 1, characterized in that, The base has a circular plate-like structure. The base is provided with a first threaded groove, and the positioning sleeve is provided with a first external thread at one end near the base, and the positioning sleeve is threadedly connected to the base.
7. The sensor consistency testing device in the tubular moisture content detection device according to claim 6, characterized in that, The base is provided with a second threaded groove, which is coaxially arranged with the first threaded groove. The test tube is provided with a second external thread at one end near the base, and the test tube is threadedly connected to the base.
8. The sensor consistency testing device in the tubular moisture content detection device according to claim 7, characterized in that, The sum of the depths of the first threaded groove and the second threaded groove is the same as the thickness of the base; and a stepped transition structure is formed at the junction of the first threaded groove and the second threaded groove.
9. The sensor consistency testing device in the tubular moisture content detection device according to claim 1, characterized in that, The wall thickness of the test tube is uniform.