CN210243855U - Cascade device and underground measuring instrument - Google Patents
Cascade device and underground measuring instrument Download PDFInfo
- Publication number
- CN210243855U CN210243855U CN201921359625.1U CN201921359625U CN210243855U CN 210243855 U CN210243855 U CN 210243855U CN 201921359625 U CN201921359625 U CN 201921359625U CN 210243855 U CN210243855 U CN 210243855U
- Authority
- CN
- China
- Prior art keywords
- angle
- support
- connecting disc
- plate
- limiting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 20
- 238000009434 installation Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model discloses a cascade device and an underground measuring instrument, which comprises a first connecting disc, an adjusting and supporting mechanism and an angle adjusting piece, wherein the angle adjusting piece is provided with an angle limiting part; the first connecting disc is connected with the second connecting disc through an adjusting and supporting mechanism and an angle adjusting piece, the adjusting and supporting mechanism can be adjusted between a stretching position and a supporting position, and the relative position between the first connecting disc and the second connecting disc can be adjusted within the limiting angle range of the angle limiting part; two adjacent measuring units are connected through a cascade device. The utility model discloses can guarantee that the instrument is normally installed, guarantee measuring result's accuracy.
Description
Technical Field
The utility model relates to an earthquake observation instrument technical field especially indicates a cascade device and downhole measuring instrument.
Background
The occurrence and inoculation of the earthquake are a relatively complex underground power change process, and a single observation means is difficult to completely reflect the complex underground structure change process, so deep well observation is often carried out by multiple observation means simultaneously, an underground measuring instrument is distributed in one observation well, the underground measuring instrument comprises a sealing cylinder and multiple measuring devices in the sealing cylinder, such as a seismometer, a strain sensor, an inclinometer, a geomagnetic instrument and the like, the more the types of the measuring devices are, the longer the length of the sealing cylinder is, and the total length of some underground measuring instruments can exceed 5 meters.
As shown in fig. 1A, when the downhole measurement instrument is installed in an observation well, because the length-diameter ratio of the instrument is too large (the dimension of the instrument in the length direction is more than 20 times larger than the dimension of the instrument in the diameter direction), and the diameter of the inner wall of the well is larger than the diameter of the outer part of an instrument cylinder, the instrument is wholly inclined, and for measurement devices such as a seismometer, the installation requirements such as azimuth cannot be met, and the accuracy of the measurement result is affected; as shown in fig. 1B, a well wall is bent due to a certain deviation error generated during the drilling process of a deep well, and an underground measuring instrument is too long and can be stuck during the drilling process, so that the underground installation cannot be successfully carried out.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a cascade device and downhole measurement instrument can guarantee the instrument normal installation, guarantees measuring result's accuracy.
Based on the above-mentioned purpose, the utility model provides a cascade device, include:
the first connecting disc is arranged on the first connecting disc,
the support mechanism is adjusted to be capable of adjusting the support mechanism,
the angle adjusting piece is provided with an angle limiting part;
a second connecting disc, a first connecting disc,
the first connecting disc is connected with the second connecting disc through the adjusting and supporting mechanism and the angle adjusting piece, the adjusting and supporting mechanism can be adjusted between a stretching position and a supporting position, and the relative position between the first connecting disc and the second connecting disc can be adjusted within the limiting angle range of the angle limiting part.
Optionally, the adjustment supporting mechanism includes first support arm, second support arm, supporting disk, guide post, first linking bridge passes through first support arm, second support arm with the supporting disk is connected, the one end of guide post with first linking bridge fixed connection, the spacing portion of cooperation of the other end of guide post with the spacing portion cooperation of supporting disk is connected.
Optionally, when the supporting disc is subjected to a downward force, the supporting disc moves downward along the guide post, and when the limiting portion moves from the first position to the second position, the first supporting arm and the second supporting arm are adjusted from the stretching position to the supporting position.
Optionally, the first connection disc is connected with the support disc through three groups of first support arms and second support arms, and the first support arms and the second support arms are arranged at intervals of 120 degrees.
Optionally, a first end of the angle adjusting member is provided with a first angle limiting portion, the first end is connected with the supporting plate through a first movable connecting member, and the angle adjusting member can rotate within a first limiting angle range relative to the supporting plate.
Optionally, a second end of the angle adjusting member is provided with a second angle limiting portion, the second end is connected with the second connecting disc through a second movable connecting member, and the second connecting disc can rotate within a second limiting angle range relative to the angle adjusting member.
Optionally, the first and second limiting angles are less than or equal to 10 degrees.
Optionally, the rotation axis of the angle adjusting piece relative to the support disc is perpendicular to the rotation axis of the second connection disc relative to the angle adjusting piece.
The utility model also provides an underground measuring instrument, including a plurality of measuring unit, two adjacent measuring unit pass through the cascade device is connected.
Optionally, the measuring unit includes a sealing cylinder and a measuring device inside the sealing cylinder, the first connecting disc is connected with the sealing cylinder of the lower measuring unit, and the second connecting disc is connected with the sealing cylinder of the upper measuring unit.
From the above, the utility model has the advantages that:
1. the cascade device of the embodiment can be adjusted between the stretching position and the supporting position according to the stress condition, and can adjust the relative position between the first connecting disc and the second connecting disc within the limit angle range;
2. the underground measuring instrument comprises a plurality of measuring units, two adjacent measuring units are connected through a cascade device, and every two measuring units are physically isolated, so that the overall risk of the instrument can be reduced, the instrument can be quickly mounted and dismounted, and the installation and maintenance are convenient;
3. in the underground measuring instrument, two adjacent measuring units are connected through the cascade device, and in the underground installation process, each measuring unit can be rigidly coupled with the well wall through the cascade device to centralize the measuring unit to be coaxial with the well wall, so that the installation requirements of the measuring units can be met, and the measuring accuracy of the measuring units is ensured;
4. according to the underground measuring instrument, two adjacent measuring units are connected through the cascade device, when the underground measuring instrument is installed in an observation well with a curved well wall, the two measuring units can adjust relative positions within a limit angle range, and the underground measuring instrument can be guaranteed to be successfully installed in the well;
5. according to the underground measuring instrument, the measuring units can be electrically connected through the cascade device, measuring devices of the measuring units can be flexibly configured according to observation purposes, and the underground measuring instrument is high in practicability and flexibility.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1A is a schematic view of the position of the vertical borehole wall in relation to a downhole surveying instrument;
FIG. 1B is a schematic view of the relationship between the position of the curved borehole wall and downhole instrumentation;
fig. 2 is a schematic perspective view of a cascade device according to an embodiment of the present invention;
fig. 3 is a schematic partial structural diagram of a cascade device according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a partial structure of the downhole measurement instrument according to the embodiment of the present invention, wherein the adjustment support mechanism is in a stretching position during the downhole process;
FIG. 5 is a schematic perspective view of a portion of the structure shown in FIG. 4;
fig. 6 is a schematic cross-sectional view of a partial structure of the downhole measuring instrument according to the embodiment of the present invention, wherein the adjusting support mechanism is located at a support position;
FIG. 7 is a perspective view of a portion of the structure shown in FIG. 6;
fig. 8A is a schematic structural view of a first angle limiting portion of an angle adjustment member according to an embodiment of the present invention;
FIG. 8B is a schematic view of another angle of the angle adjustment member shown in FIG. 8A;
fig. 9A is a schematic structural view of a second angle-limiting portion of the angle adjustment member according to the embodiment of the present invention;
fig. 9B is a schematic view of another angle structure of the angle adjusting member shown in fig. 9A.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe any more.
Fig. 2 is a schematic perspective view of a cascade device according to an embodiment of the present invention, fig. 3 is a schematic partial structure view of a cascade device according to an embodiment of the present invention, and fig. 4 to 7 are a sectional structure and a schematic perspective view of a partial structure of an underground measuring instrument according to an embodiment of the present invention. As shown in the drawings, the embodiment of the present invention provides a cascade device 100, including:
the first connecting disc 3 is provided with a plurality of connecting discs,
the support mechanism is adjusted to be capable of adjusting the support mechanism,
an angle adjusting member 10 provided with an angle limiting portion;
a second connecting plate (11) is arranged on the lower side of the base,
the first connecting disc 3 is connected with the second connecting disc 11 through an adjusting and supporting mechanism and an angle adjusting piece 10, the first connecting disc 3 and the second connecting disc 11 are supported by the adjusting and supporting mechanism, the adjusting and supporting mechanism can be adjusted between a stretching position and a supporting position, and the relative position between the first connecting disc 3 and the second connecting disc 11 is adjusted within the limiting angle range of the angle limiting portion.
The utility model discloses cascade device joinable upper portion measuring unit and lower part measuring unit, upper portion measuring unit and lower part measuring unit pass through the cascade device and are connected, and the two can adjust relative position within the spacing angle scope of the spacing portion of angle to support the relative position between the two by adjustment supporting mechanism. Like this, can be according to each measuring unit split with a sealed barrel and become a plurality of measuring unit, two adjacent measuring unit pass through the cascade connection device and connect, two adjacent measuring unit can adjust the relative position between spacing angular range, even the wall of a well 1 is the crooked wall of a well, also can realize going into the well of measuring instrument in the pit smoothly, each measuring unit accessible adjustment supporting mechanism and wall of a well rigid connection, can right the axis of the measuring unit of slope to be parallel with the axis of well drilling to satisfy measuring unit's installation requirement.
As shown in the figure, the adjusting and supporting mechanism comprises a first supporting arm 5, a second supporting arm 6, a supporting disk 9 and a guide post 7, the first connecting disk 3 is connected with the first shaft connecting part 4 through a fixed connecting piece, the supporting disk 9 is connected with the second shaft connecting part 8 through a fixed connecting piece, and the first shaft connecting part 4 is connected with the second shaft connecting part 8 through the first supporting arm 5 and the second supporting arm 6. One end and the first flange 3 fixed connection of guide post 7, the other end of guide post 7 are equipped with the spacing portion of cooperation, and supporting disk 9 is equipped with spacing portion, and the spacing portion of cooperation is connected with the cooperation of spacing portion, as shown in fig. 3, 6, it has spacing groove 71 to open on the other end lateral wall of guide post 7, and the position that supporting disk 9 inner wall corresponds spacing groove 71 is equipped with spacing portion 91, and spacing portion 91 card is located in spacing groove 71.
The matching limit part at the other end of the guide post is connected with the limit part of the support disc in a matching way
When the support disc 9 is not under the action of the upper pressure, the limiting part 91 is located at the top of the limiting groove 71, and the first support arm 5 and the second support arm 6 are in the stretching position. When the supporting disc 9 is under the action of upper pressure, the supporting disc 9 moves downwards along the guide post 7, the limiting part 91 moves from the top to the bottom along the limiting groove 71, and in the process of moving downwards, the first supporting arm 5 and the second supporting arm 6 rotate relatively by taking the connecting position of the two as an axis and support outwards; when the position-limiting portion 91 moves to the bottom of the position-limiting groove 71, the support plate 9 stops moving downward, and the first support arm 5 and the second support arm 6 are located at the support positions.
In this embodiment, the first connection plate 3 is connected with three first shaft connection portions 4, the support plate 9 is connected with three second shaft connection portions 8, and the three first shaft connection portions 4 are connected with the three second shaft connection portions 8 through three groups of first support arms 5 and second support arms 6 which are connected with each other. Optionally, three first coupling portion 4 distributes at an interval of 120 degrees on first connecting disc 3 and sets up, and three second coupling portion 8 sets up with three first coupling portion 4 one-to-one respectively, and three first support arm 5 of group, 6 intervals of second support arm 120 degrees set up, when three first support arm 5 of group, second support arm 6 are located the holding position, can realize the stability of measuring unit and the wall of a well, closely laminate.
Fig. 8A and 8B are schematic structural views of the first angle limiting portion of the angle adjusting member according to the embodiment of the present invention. As shown in the figure, a first end of the angle adjusting member 10 is provided with a first angle limiting portion 101, the first end of the angle adjusting member 10 is connected to the supporting plate 9 through a first movable connecting member 103, and as shown in fig. 5, the angle adjusting member 10 can rotate within a first limiting angle range relative to the supporting plate 9 by taking an axis of the first movable connecting member 103 as an X-axis. Optionally, the first limit angle is less than or equal to 10 degrees.
Fig. 9A and 9B are schematic structural views of a second angle limiting portion of the angle adjusting member according to the embodiment of the present invention. As shown in the figure, the second end of the angle adjusting member 10 is provided with a second angle limiting portion 102, the second end of the angle adjusting member 10 is connected to the second connecting disc 11 through a second movable connecting member 104, and as shown in fig. 5, the second connecting disc 11 can rotate within a second limiting angle range relative to the angle adjusting member 10 by taking the axis of the second movable connecting member 104 as the Y-axis. Optionally, the second limit angle is less than or equal to 10 degrees.
Wherein, the X axis and the Y axis are perpendicular to each other, and the first movable connecting element 103 and the second movable connecting element 104 may be pins.
In another aspect of the embodiment of the present invention, there is provided a downhole measuring apparatus, comprising a plurality of measuring units, wherein two adjacent measuring units are connected to each other by a cascade device 100. The first connecting plate 3 of the cascade arrangement 100 is connected to the lower measuring unit and the second connecting plate 11 is connected to the upper measuring unit via a connecting flange 12.
The measuring unit comprises a sealing cylinder and a measuring device inside the sealing cylinder. As shown in fig. 4 to 7, the first connecting plate 3 is connected to the sealing cylinder 2 of the lower measuring unit, and the second connecting plate 11 is connected to the sealing cylinder 13 of the upper measuring unit via a connecting flange 12.
The measuring device can be specifically configured according to the measurement function requirements of the underground measuring instrument, and the measuring device comprises a seismometer, a strain sensor, an inclinometer, a geomagnetic instrument and the like, and also comprises a data acquisition module, a time service module and other functional modules. Two adjacent measurement units are mechanically connected through the cascade device 100, and for two measurement units requiring circuit connection, a circuit connection line can be arranged through a central hole 110 of the cascade device 100, for example, data acquired by the seismometer, the strain sensor, the inclinometer and the magnetometer are respectively connected with the data acquisition module through corresponding data lines so as to transmit the respective measured data to the data acquisition module, and the time service module is connected with the seismometer through a signal line so as to transmit a time service signal to the seismometer.
In the embodiment, the sealing cylinder for hermetically accommodating the measuring unit is cylindrical, the outer diameter of the cylinder is 118 mm, the length of the cylinder is 600 mm and 1500 mm, the cylinder is made of nonmagnetic stainless steel 316# and is resistant to pressure of 12 MPa.
The underground measuring instrument adopts a sectional design, each measuring device is respectively packaged in the sealing cylinder body, the sealing cylinder body and the measuring device inside the sealing cylinder body are taken as one measuring unit, two adjacent measuring units are connected in series through the cascade device 100 (mechanical connection and electrical connection can be realized), physical isolation is realized between every two measuring units, the overall risk of the instrument can be reduced, quick installation in disassembly can be realized, and the installation and maintenance are convenient.
In the installation process of the underground measuring instrument, each adjusting and supporting mechanism is under the action of pressure and is propped open towards the direction of the well wall until the first supporting arm 5 and the second supporting arm 6 are firmly contacted with the well wall, so that the axis of the sealing cylinder of the lower measuring unit connected with the cascading device 100 is coaxial with the well wall, the function of righting the measuring unit is achieved, the rigid coupling of the measuring unit and the well wall is ensured, the installation requirements of the position, the mechanical coupling and the like of the measuring unit can be met, and the measuring accuracy of the measuring unit is ensured.
When the sectional type downhole measuring instrument is installed in an observation well with a curved well wall, two adjacent measuring units are connected through the cascade device 100, and the relative positions of the two measuring units can be adjusted within a limit angle range, so that the sectional type downhole measuring instrument can be successfully installed in the well.
The apparatus of the foregoing embodiment is used to implement the corresponding method in the foregoing embodiment, and has the beneficial effects of the corresponding method embodiment, which are not described herein again.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
In addition, well known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown in the provided figures for simplicity of illustration and discussion, and so as not to obscure the invention. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the invention, and also in view of the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the present invention is to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the invention, it should be apparent to one skilled in the art that the invention can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
While the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic ram (dram)) may use the discussed embodiments.
The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A cascade apparatus, comprising:
the first connecting disc is arranged on the first connecting disc,
the support mechanism is adjusted to be capable of adjusting the support mechanism,
the angle adjusting piece is provided with an angle limiting part;
a second connecting disc, a first connecting disc,
the first connecting disc is connected with the second connecting disc through the adjusting and supporting mechanism and the angle adjusting piece, the adjusting and supporting mechanism can be adjusted between a stretching position and a supporting position, and the relative position between the first connecting disc and the second connecting disc can be adjusted within the limiting angle range of the angle limiting part.
2. The device of claim 1, wherein the adjusting support mechanism comprises a first support arm, a second support arm, a support plate, and a guide post, the first connection plate is connected to the support plate through the first support arm and the second support arm, one end of the guide post is fixedly connected to the first connection plate, and a position-limiting portion at the other end of the guide post is connected to a position-limiting portion of the support plate.
3. The apparatus of claim 2, wherein the support plate moves down the guide post when the support plate is subjected to a downward force, and the first and second support arms adjust from the extended position to the support position when the limiting portion moves from the first position to the second position.
4. The apparatus of claim 3, wherein the first connecting plate is connected to the support plate by three sets of the first and second support arms, the three sets of the first and second support arms being spaced apart by 120 degrees.
5. The apparatus of claim 2, wherein the first end of the angle adjustment member is provided with a first angle limiting portion, the first end is connected with the support plate through a first movable connection member, and the angle adjustment member is rotatable within a first limiting angle range relative to the support plate.
6. The apparatus of claim 5, wherein the second end of the angle adjustment member is provided with a second angle limiting portion, the second end is connected to the second connecting plate via a second movable connecting member, and the second connecting plate is rotatable within a second limiting angle range with respect to the angle adjustment member.
7. The device of claim 6, wherein the first and second limit angles are less than or equal to 10 degrees.
8. The apparatus of claim 6, wherein the rotational axis of the angle adjuster relative to the support plate is perpendicular to the rotational axis of the second connection plate relative to the angle adjuster.
9. A downhole surveying instrument comprising a plurality of surveying cells, adjacent two surveying cells being connected by a cascade arrangement according to any of claims 1-8.
10. The apparatus according to claim 9, wherein the measuring unit comprises a sealing cylinder and a measuring device inside the sealing cylinder, the first connecting disc is connected with the sealing cylinder of the lower measuring unit, and the second connecting disc is connected with the sealing cylinder of the upper measuring unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921359625.1U CN210243855U (en) | 2019-08-20 | 2019-08-20 | Cascade device and underground measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921359625.1U CN210243855U (en) | 2019-08-20 | 2019-08-20 | Cascade device and underground measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210243855U true CN210243855U (en) | 2020-04-03 |
Family
ID=69964261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921359625.1U Withdrawn - After Issue CN210243855U (en) | 2019-08-20 | 2019-08-20 | Cascade device and underground measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210243855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346832A (en) * | 2019-08-20 | 2019-10-18 | 中国地震局地震预测研究所 | A kind of cascade unit and device for subsurface measuring |
-
2019
- 2019-08-20 CN CN201921359625.1U patent/CN210243855U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346832A (en) * | 2019-08-20 | 2019-10-18 | 中国地震局地震预测研究所 | A kind of cascade unit and device for subsurface measuring |
| CN110346832B (en) * | 2019-08-20 | 2024-03-26 | 中国地震局地震预测研究所 | Cascade device and underground measuring instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20160123789A1 (en) | Liquid level sensor system | |
| CN210243855U (en) | Cascade device and underground measuring instrument | |
| CN106949909B (en) | Gyroscope calibration system and method based on astronomical azimuth angle | |
| CN101666638A (en) | Calibrating device for angular displacement sensor | |
| CN101915562B (en) | Calibrating device for tilt angle sensor | |
| CN202081882U (en) | Calibration console for wireless inclinometer while drilling | |
| CN106705939B (en) | Slope inclination rapid measurement device and method | |
| CN106338272B (en) | Test method for component incline measurement | |
| CN210268680U (en) | Test switching device for laser inertial measurement unit temperature compensation system | |
| CN107843206B (en) | Bridge pier curvature displacement testing device and method | |
| CN214010281U (en) | Construction survey is with multi-functional survey and drawing sopwith staff | |
| CN110346832B (en) | Cascade device and underground measuring instrument | |
| CN209181788U (en) | A kind of total station of the building detection convenient for adjusting | |
| CN116045928A (en) | Cantilever type vertical shaft coordinate transmission steel rule and steel wire fixing device and transmission method thereof | |
| CN112729047B (en) | Parallelism adjusting method | |
| CN207571319U (en) | The highly reliable seismic detector being made of four measuring units | |
| CN110006578A (en) | A kind of wireless electron differential pressure transmitter | |
| CN202970704U (en) | Multipoint interpolation hole diameter calibration device | |
| CN205209484U (en) | Inclinometer is fixed to formula of buryying | |
| CN109781340A (en) | A kind of bit pressure and torque rating test device and scaling method | |
| CN103499332A (en) | Antenna pedestal pitch angle precision measurement device and method for measuring vertical rotational range of radar | |
| CN206132050U (en) | Rod -type inclinometer installation fixing device | |
| CN210401682U (en) | Interconnection device, interconnection subassembly and seismic detector in pit | |
| CN114993162A (en) | Device and method for measuring circumferential strain and axial stress of grouting material | |
| CN104655409B (en) | Space optical remote sensor focus adjusting mechanism simulates in-orbit gravity release detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200403 Effective date of abandoning: 20240326 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200403 Effective date of abandoning: 20240326 |