CN221006210U - Multi-point displacement meter - Google Patents
Multi-point displacement meter Download PDFInfo
- Publication number
- CN221006210U CN221006210U CN202322862452.8U CN202322862452U CN221006210U CN 221006210 U CN221006210 U CN 221006210U CN 202322862452 U CN202322862452 U CN 202322862452U CN 221006210 U CN221006210 U CN 221006210U
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- measuring
- magnetic ring
- displacement meter
- base
- sleeve
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 37
- 238000004873 anchoring Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
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- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The multipoint displacement meter comprises a base, a measuring rod, a sleeve and an anchoring piece, wherein a sensor is arranged in the base, a plurality of measuring rods are arranged on the base, waveguide wires are arranged in the measuring rods and connected with the sensor, and a first magnetic ring and a second magnetic ring are sleeved on the measuring rods; the first magnetic ring is fixed at one end of the measuring rod far away from the base, and the second magnetic ring is movably arranged on the measuring rod between the first magnetic ring and the base; the sleeve is sleeved on the outer side of the measuring rod, one end of the sleeve is fixedly connected with the second magnetic ring, and the other end of the sleeve is connected with the anchoring piece. The multipoint displacement meter adopts the magnetostriction principle to measure displacement change, has high detection sensitivity, and has high accuracy because the measurement result is an absolute change value. In the application, the measuring range of the measuring rod and the length of the anchoring piece can be distributed according to actual needs, and the adaptability is strong.
Description
Technical Field
The utility model relates to the technical field of measuring equipment, in particular to a multipoint displacement meter.
Background
A multipoint displacement meter is an instrument for measuring deformation of a plurality of displacement positions of a structure or soil. The displacement change conditions of different positions can be monitored simultaneously, and comprehensive deformation data can be provided for users so as to analyze and evaluate the deformation of the structure or the land. The multi-point displacement meter has wide application in civil engineering, geological engineering and constructional engineering, and can monitor deformation conditions of structures such as buildings, bridges, tunnels, dam bodies and the like by using the multi-point displacement meter, discover problems in time and take measures to repair or strengthen. With the great advancement of infrastructure, the demand for displacement meters is also increasing, and in view of this, the present application aims to provide a multipoint displacement meter based on the magnetostriction principle.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide the multipoint displacement meter which has high detection sensitivity, accurate detection result and wide application range.
The technical scheme of the utility model is as follows: the multipoint displacement meter comprises a base, a measuring rod, a sleeve and an anchoring piece, wherein a sensor is arranged in the base, a plurality of measuring rods are arranged on the base, waveguide wires are arranged in the measuring rods and connected with the sensor, and a first magnetic ring and a second magnetic ring are sleeved on the measuring rods; the first magnetic ring is fixed at one end of the measuring rod far away from the base, and the second magnetic ring is movably arranged on the measuring rod between the first magnetic ring and the base; the sleeve is sleeved on the outer side of the measuring rod, one end of the sleeve is fixedly connected with the second magnetic ring, and the other end of the sleeve is connected with the anchoring piece.
Further, be provided with the ring flange on the base, the measuring stick evenly distributed on the ring flange. Preferably, the flange plate is circular, and the measuring rods are circumferentially distributed; of course, in some embodiments, the flange may be rectangular, and the measuring rods are arranged in a straight line.
Further, the measuring rod is kept vertical to the flange plate.
Further, the number of measuring rods is at least 3.
Further, the length of the measuring rod remains the same. Preferably, the measuring rods are different in length, so that the measuring range of each measuring rod is different, a user can distribute the positions of the measuring rods according to actual conditions, and the measuring rods with large measuring ranges are correspondingly arranged on measuring points with possibly large variation through pre-estimation as much as possible.
Further, the anchoring member comprises a connecting rod and an anchor head, the lengths of the connecting rods in each anchoring member are identical, and preferably, the lengths of the connecting rods in the anchoring member can be different, so that the displacement meters can simultaneously measure the settlement displacement of the measuring points at different depths of the soil layer.
Further, the anchor is detachably connected with the sleeve.
The utility model has the beneficial effects that: the multipoint displacement meter adopts the magnetostriction principle to measure displacement change, has high detection sensitivity, absolute change value of measurement results and high accuracy, and the measuring ranges of the measuring rods can be set to be different, so that the multipoint displacement meter can be distributed according to actual needs during use and has high adaptability. For example, when the soil layer above the top of the n-shaped tunnel is measured, the thickness of the soil layer in the middle of the top of the tunnel is thinner than that of the two sides, so that the change amount of the soil layer in the middle of the top of the tunnel is expected to be smaller than that of the two sides, the measuring rod with smaller measuring range can be arranged at a position closer to the middle of the top of the tunnel, and the measuring rod with larger measuring range is arranged at a position far from the middle of the top of the tunnel, thereby being more beneficial to fully utilizing the performance of the multipoint displacement meter and improving the measuring precision.
Drawings
FIG. 1 is a schematic perspective view of embodiment 1 of the present utility model;
FIG. 2 is a schematic illustration of embodiment 1 of the present utility model with the sleeve and anchor omitted;
FIG. 3 is a schematic cross-sectional view of the assembly of a single measuring rod, sleeve and anchor of example 1 of the present utility model;
In the figure: the device comprises a base, a 2-measuring rod, a 3-sleeve, a 4-anchoring piece, a 51-first magnetic ring, a 52-second magnetic ring and a 6-waveguide wire.
Detailed Description
The present utility model will be described in further detail with reference to specific examples, wherein methods or functional elements not specifically described are prior art.
Example 1
As shown in fig. 1-3, the embodiment is a multipoint displacement meter, which comprises a base 1, a measuring rod 2, a sleeve 3 and an anchoring piece 4, wherein a sensor is arranged in the base 1, the base 1 is provided with a plurality of measuring rods 2, a waveguide wire 6 is arranged in the measuring rod 2, the waveguide wire 6 is connected with a circuit of the sensor, and a first magnetic ring 51 and a second magnetic ring 52 are sleeved on the measuring rod 2; wherein the first magnetic ring 51 is fixed at one end of the measuring rod 2 far away from the base 1, and the second magnetic ring 52 is movably arranged on the measuring rod 2 between the first magnetic ring 51 and the base 1; the sleeve 3 is sleeved on the outer side of the measuring rod 2, one end of the sleeve 3 is fixedly connected with the second magnetic ring 52, and the other end of the sleeve 3 is connected with the anchoring piece 4.
In the embodiment, a flange plate is arranged on a base 1, the flange plate is circular, and measuring rods 2 are circumferentially distributed on the flange plate; the measuring rod 2 is kept perpendicular to the flange. The number of measuring bars 2 is 3, and the length of the measuring bars 2 remains the same.
In this embodiment, the anchoring member 4 comprises a connecting rod and an anchor head, and the lengths of the connecting rods in the anchoring member 4 can be different from each other, so that the displacement meters can measure the settlement displacement of the measuring points at different depths of the soil layer at the same time. The anchor 4 is detachably connected with the sleeve 3 through a thread structure.
The using method of the embodiment is the same as that of the existing displacement meter, namely, an anchor is fixed on a to-be-measured point, then a measured signal is sent to a data collector through a sensor, and the data collector calculates corresponding displacement variation according to the obtained signal (such as the relative position between a waveguide wire and a magnetic ring); and will not be described in detail herein.
Example 2
This embodiment differs from embodiment 1 in that: in this embodiment, the flange is rectangular, the measuring rods 2 are linearly arranged on the flange, and the lengths of the measuring rods 2 are different, so that the measuring range of each measuring rod 2 is different, and a user can adjust the position of the measuring rod 2 according to the actual situation, and correspondingly set the measuring rod 2 with a large measuring range on a measuring point with a possibly large pre-estimated variation as much as possible. For example, when the soil layer above the top of the n-shaped tunnel is measured, the thickness of the soil layer in the middle of the top of the tunnel is thinner than that of the two sides, so that the change amount of the soil layer in the middle of the top of the tunnel is expected to be smaller than that of the two sides, the measuring rod with smaller measuring range can be arranged at a position closer to the middle of the top of the tunnel, and the measuring rod with larger measuring range is arranged at a position far from the middle of the top of the tunnel, thereby being more beneficial to fully utilizing the performance of the multipoint displacement meter and improving the measuring precision.
The above is only a part of embodiments of the present utility model, and it is not intended to limit the present utility model, and it is obvious to those skilled in the art that the present utility model can be combined and modified in various technical features, and it is intended to include the present utility model in the scope of the present utility model without departing from the spirit and scope of the present utility model.
Claims (10)
1. A multipoint displacement meter, characterized by: the device comprises a base, a measuring rod, a sleeve and an anchoring piece, wherein a sensor is arranged in the base, a plurality of measuring rods are arranged on the base, waveguide wires are arranged in the measuring rods and connected with the sensor, and a first magnetic ring and a second magnetic ring are sleeved on the measuring rods; the first magnetic ring is fixed at one end of the measuring rod far away from the base, and the second magnetic ring is movably arranged on the measuring rod between the first magnetic ring and the base; the sleeve is sleeved on the outer side of the measuring rod, one end of the sleeve is fixedly connected with the second magnetic ring, and the other end of the sleeve is connected with the anchoring piece.
2. The multipoint displacement meter according to claim 1, wherein: the base is provided with a flange plate, and the measuring rods are uniformly distributed on the flange plate.
3. The multipoint displacement meter according to claim 2, wherein: the measuring rod is vertical to the flange plate.
4. The multipoint displacement meter according to claim 1, wherein: the number of the measuring rods is at least 3.
5. The multipoint displacement meter according to claim 1, wherein: the length of the measuring rod remains the same.
6. The multipoint displacement meter according to claim 1, wherein: the measuring rods are different in length.
7. The multipoint displacement meter according to claim 1, wherein: the anchor comprises a connecting rod and an anchor head.
8. The multipoint displacement meter according to claim 7, wherein: the length of the connecting rods in each anchor is the same or different.
9. The multipoint displacement meter according to claim 2, wherein: the flange plate is rectangular or circular.
10. The multipoint displacement meter according to any of claims 1-8, wherein: the anchoring piece is detachably connected with the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322862452.8U CN221006210U (en) | 2023-10-25 | 2023-10-25 | Multi-point displacement meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322862452.8U CN221006210U (en) | 2023-10-25 | 2023-10-25 | Multi-point displacement meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221006210U true CN221006210U (en) | 2024-05-24 |
Family
ID=91124790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322862452.8U Active CN221006210U (en) | 2023-10-25 | 2023-10-25 | Multi-point displacement meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221006210U (en) |
-
2023
- 2023-10-25 CN CN202322862452.8U patent/CN221006210U/en active Active
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