CN217980653U - Testing device for measuring precision of soil pressure gauge - Google Patents
Testing device for measuring precision of soil pressure gauge Download PDFInfo
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- CN217980653U CN217980653U CN202221134207.4U CN202221134207U CN217980653U CN 217980653 U CN217980653 U CN 217980653U CN 202221134207 U CN202221134207 U CN 202221134207U CN 217980653 U CN217980653 U CN 217980653U
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- pressure gauge
- soil pressure
- soil
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Abstract
The utility model discloses a device for testing the measurement accuracy of a soil pressure gauge, which comprises the soil pressure gauge, a box body and a storage device, wherein the storage device is arranged in the box body; the accommodating device is internally provided with a substrate, the soil pressure gauge is arranged in the substrate, and the box body and the accommodating device are both provided with mounting holes; the upper surface of the containing device is provided with a pressing plate, and a weighing device is arranged on the pressing plate. The weighing device provides a pressure source, and the pressure exerted by the weighing device is compared with the pressure difference before and after the pressure exerted by the soil pressure gauge, so that the measurement accuracy of the soil pressure gauge is checked. On the other hand, this device can be used to the experiment teaching, for the measurement principle of classmates demonstration soil pressure gauge, convenient teaching.
Description
Technical Field
The utility model relates to a sensor inspection field especially relates to a soil pressure meter measurement accuracy's verifying attachment.
Background
The soil pressure gauge consists of a back plate, an induction plate, a signal transmission cable, a vibrating string, an excitation electromagnetic coil and the like, and is effective monitoring equipment for knowing the soil pressure variation in a measured structure and synchronously measuring the temperature of a buried point. The soil pressure gauge is suitable for long-term measurement of the pressure stress of soil bodies in earth-rock dams, soil embankments, side slopes, roadbed and other structures. When the soil stress in the structure to be measured changes, the induction plate of the soil pressure gauge synchronously senses the change of the stress, the induction plate deforms, the deformation is transmitted to the vibrating wire and is converted into the change of the stress of the vibrating wire, and therefore the vibration frequency of the vibrating wire is changed. The electromagnetic coil excites vibration string and measures its vibration frequency, the frequency signal is transmitted to the reading device through cable, and the compression stress value of the measured structure can be measured. In the in-service use in-process, there is not a mechanical device can the measurement accuracy of soil pressure gauge, can not guarantee soil pressure gauge measuring precision to, when carrying out the principle explanation of soil pressure gauge, only stop theoretical knowledge, there is not a device for demonstrating, be not convenient for classmates to understand.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at providing a soil pressure gauge measurement accuracy's verifying attachment detects soil pressure gauge's measurement accuracy, guarantees measured data's accuracy to be convenient for teach explanation, convenient demonstration.
In order to realize the above purpose, the utility model discloses a technical scheme:
the device for testing the measurement accuracy of the soil pressure gauge comprises the soil pressure gauge, a box body and a containing device, wherein the containing device is arranged in the box body; the accommodating device is internally provided with a substrate, the soil pressure gauge is arranged in the substrate, and the box body and the accommodating device are both provided with mounting holes; the upper surface of the containing device is provided with a pressing plate, and a weighing device is arranged on the pressing plate.
Preferably, the substrate is soil with the water content of 18% -20%.
Preferably, the receiving device is a transparent film bag.
Preferably, the scale is a weight.
Preferably, the box body is a transparent glass box.
Preferably, the soil pressure gauge is in signal connection with a terminal device.
The utility model has the advantages that:
the utility model provides a soil pressure meter measurement accuracy's verifying attachment, the setting of box is for other structures provide an installation space, the holistic transportation and the transport of the device of being convenient for. The containing device is used for containing the matrix, the matrix simulates the use environment of the soil pressure gauge and provides foundation pressure for the soil pressure gauge; the mounting hole of seting up on box and the storage device is convenient for the installation of soil pressure gauge, and the measuring part of soil pressure gauge sets up in the matrix, and its wire portion passes through the mounting hole and sets up externally, the reading of soil pressure gauge measured data of being convenient for. The pressure plate is arranged on the upper surface of the containing device, and the uniformity of pressure development and the inspection precision of the device are ensured by arranging the pressure plate; the weighing device provides a pressure source, and the pressure exerted by the weighing device is compared with the pressure difference before and after the pressure exerted by the soil pressure gauge, so that the measurement accuracy of the soil pressure gauge is checked. On the other hand, this device can be used to the experiment teaching, for the measurement principle of classmates demonstration soil pressure gauge, convenient teaching.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a front view of the storage device of the present invention.
In the figure: 1. a soil pressure gauge; 2. a box body; 3. a storage device; 4. a substrate; 5. pressing a plate; 6. a weighing machine.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further explained with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1-2, the present embodiment provides a device for testing the measurement accuracy of a soil pressure gauge, which comprises a soil pressure gauge 1, a box 2 and a receiving device 3, wherein the receiving device 3 is arranged in the box 2; a substrate 4 is arranged in the containing device 3, the soil pressure gauge 1 is arranged in the substrate 4, and mounting holes are formed in the box body 2 and the containing device 3; the upper surface of the containing device 3 is provided with a pressing plate 5, and a weighing device 6 is arranged on the pressing plate 5.
A device for testing the measurement accuracy of a soil pressure gauge, wherein the soil pressure gauge 1 comprises a measurement part and a lead part; the box body 2 in the device is used as an installation foundation and provides an installation foundation for other structures of the device; the containing device 3 is used for containing a substrate 4, a measuring part of the soil pressure gauge 1 is arranged in the substrate 4, and the substrate 4 applies the pressure of the foundation to the soil pressure gauge 1; the wire part of the soil pressure gauge 1 is arranged outside through the containing device 3 and the mounting holes on the box body 2, so that the measurement data of the soil pressure gauge 1 can be read conveniently; it should be noted that the receiving device 3 is disposed corresponding to the mounting hole on the box 2, and the size and the specific position thereof can be set according to practical situations. Be provided with clamp plate 5 on storage device 3, place scale 6 on the clamp plate 5, scale 6 is for providing external pressure for soil pressure gauge 1, and clamp plate 5 is used for making pressure evenly distributed, avoids pressure to concentrate to lead to detecting the error. In actual use, the soil pressure gauge 1 measures pressure values before and after applying pressure, a pressure difference is calculated, and the measurement accuracy of the soil pressure gauge 1 is checked by comparing the pressure values of the arranged weighing devices 6. Further, this device can be used to the teaching explanation of soil pressure gauge 1 principle, through the experiment demonstration, and the student of being convenient for understands the work theory of using of top soil pressure gauge 1.
Example 2
As shown in fig. 1-2, this embodiment is developed on the basis of the above embodiments, and specifically, this embodiment provides a device for testing the measurement accuracy of a soil pressure gauge, in order to ensure that a substrate 4 is scattered and simulate the soil environment of a construction land, the substrate 4 is soil with a water content of 18% -20%.
Preferably, the receiving device 3 is a transparent film bag for easy observation and economical cost saving.
Preferably, the weigher 6 is a weight, applies pressure to the soil pressure gauge 1 by setting the weight of the weight, the soil pressure gauge 1 measures pressure values before and after applying the pressure, a pressure difference is calculated, and the measurement accuracy of the soil pressure gauge 1 is checked by comparing the pressure values of the weigher 6.
Preferably, the box body 2 is a transparent glass box for easy observation.
Preferably, the soil pressure gauge 1 is in signal connection with a terminal device, pressure difference before and after pressure is applied can be automatically calculated through the terminal device according to measured data, and errors of detection results caused by manual errors are avoided.
Example 3
The present embodiment is developed on the basis of the above embodiments, and specifically, the present embodiment provides an apparatus for testing the measurement accuracy of a soil pressure gauge, in which the soil pressure gauge 1 is a VSP520 series vibrating wire type soil pressure gauge, the substrate 4 is soil with a water content of 20%, the box body 2 is a transparent glass box for observing experimental phenomena, and a transparent film bag is used for bagging the soil. When the soil pressure gauge 1 is buried, it is ensured that the density of the surrounding soil is appropriately higher than the density of the soil at other locations, the measuring portion of the soil pressure gauge 1 is buried in the soil, and the wire portion is provided outside through the mounting holes of the housing device 3 and the case 2. Then arranging a pressing plate 5 on the upper surface of the containing device 3, placing weights on the pressing plate 5, and obtaining the variables of the soil pressure gauge 1 before and after the soil pressure gauge 1 applies pressure by setting the weight of the weights; and calculating the monitored values before and after the soil pressure gauge 1 applies pressure, calculating actual variables of the values, comparing the results of the actual variables and the actual variables, and checking the measurement accuracy of the soil pressure gauge 1.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a verifying attachment of soil pressure meter measurement accuracy, includes soil pressure meter (1), its characterized in that: the device also comprises a box body (2) and a containing device (3), wherein the containing device (3) is arranged in the box body (2); a substrate (4) is arranged in the containing device (3), the soil pressure gauge (1) is arranged in the substrate (4), and mounting holes are formed in the box body (2) and the containing device (3); the upper surface of the containing device (3) is provided with a pressing plate (5), and the pressing plate (5) is provided with a weighing device (6).
2. The apparatus of claim 1, wherein the apparatus further comprises: the substrate (4) is soil with the water content of 18-20%.
3. The apparatus of claim 1, wherein the apparatus further comprises: the containing device (3) is a transparent film bag.
4. The apparatus for verifying the accuracy of a soil pressure gauge measurement of claim 1, wherein: the weighing device (6) is a weight.
5. The apparatus of claim 1, wherein the apparatus further comprises: the box body (2) is a transparent glass box.
6. The apparatus of claim 1, wherein the apparatus further comprises: and the soil pressure gauge (1) is in signal connection with terminal equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221134207.4U CN217980653U (en) | 2022-05-12 | 2022-05-12 | Testing device for measuring precision of soil pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221134207.4U CN217980653U (en) | 2022-05-12 | 2022-05-12 | Testing device for measuring precision of soil pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217980653U true CN217980653U (en) | 2022-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221134207.4U Active CN217980653U (en) | 2022-05-12 | 2022-05-12 | Testing device for measuring precision of soil pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217980653U (en) |
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2022
- 2022-05-12 CN CN202221134207.4U patent/CN217980653U/en active Active
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