CN108519074A - A kind of dynamic adhesion formula dip measuring device and method - Google Patents
A kind of dynamic adhesion formula dip measuring device and method Download PDFInfo
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- CN108519074A CN108519074A CN201810374397.9A CN201810374397A CN108519074A CN 108519074 A CN108519074 A CN 108519074A CN 201810374397 A CN201810374397 A CN 201810374397A CN 108519074 A CN108519074 A CN 108519074A
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- large cable
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- 238000000034 method Methods 0.000 title claims description 12
- 230000000452 restraining effect Effects 0.000 claims abstract description 62
- 238000005259 measurement Methods 0.000 claims abstract description 30
- 238000007654 immersion Methods 0.000 claims abstract description 20
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 13
- 239000010432 diamond Substances 0.000 claims abstract description 13
- 238000000691 measurement method Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000012800 visualization Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000012935 Averaging Methods 0.000 claims 1
- 238000012806 monitoring device Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The present invention relates to a kind of extra large cable immersion angle real-time monitoring device and measurement methods.The purpose is to provide a kind of extra large cable immersion angle real-time monitoring device, extra large cable immersion angle can be monitored in real time, while not interfere with laying for extra large cable repeater during actual job also, and is easy to use.A kind of dynamic adhesion formula dip measuring device, including：One support portion, a measurement portion, one first universal driving shaft and one second universal driving shaft；The support portion is made of a rigid supporting rod and a universal joint, the measurement portion is made of a rigid link, one first restraining arm, one second restraining arm and a Dip countion instrument, first restraining arm and the second restraining arm substantially diamond structure, one U-shaped wheel is respectively housed in the upper vertex of each restraining arm and two edges, the lower base angle of the restraining arm is hatch frame, opening at the lower base angle is equipped with the hook-shaped restraining structure of smooth surface, and the Dip countion instrument is mounted on the center of the rigid link.
Description
Technical field
The present invention relates to bottom cable laying technical fields, are to be related to a kind of paving cable ship cloth cable construction operation specifically
In the process for the monitoring device and measurement method of extra large cable immersion angle degree.
Background technology
The important transmission of electric power and communication between submarine cable is between offshore islands and city or inland river two sides city
Means.Due to the needs of transformation rivers, lake, coastal waters and reservoir dam, submerged cable is more and more widely used.Underwater paving
If extra large cable is usually completed by paving cable ship, in order to control cable releasing speed and shipping agency speed, spreads in cable work progress and need the moment
The tensioning state and its posture in water for solving extra large cable ensure that extra large cable can fall on specified position to calculate cable laying surplus
On, will not bend with it is be overlapped.Therefore, it needs to monitor extra large cable immersion angle in real time in spreading cable work progress, in time
Understand extra large cable and enter water state, auxiliary carries out surplus to extra large cable and calculates and control.
During actual job, on the one hand spreads cable ship and often shaken by wave effect, ship during water surface construction operation
Big rise and fall is swung, causes the monitoring of extra large cable immersion angle degree more difficult, the angle value precision monitored is relatively low, is laid with and makees to extra large cable
The control of industry brings certain inconvenience；Meanwhile the monitoring method of construction requirement is reliable and stable, monitoring data can visualize；It is another
Aspect is spread in cable construction operation, while monitoring extra large cable inclination angle, it is desirable that monitoring device cannot influence laying for extra large cable repeater
Operation.Existing dip measuring device and method the fields such as are toppled for automobile industry, machine industry, hull navigation,
Its angle change frequency is relatively low, amplitude is relatively small, cannot meet the monitoring requirements of extra large cable process of deployment.
Currently, still without being specially adapted for monitoring the device at inclination angle in extra large cable process of deployment.Therefore, it is necessary to one kind accurately to have
The device and measurement method of effect monitoring extra large cable immersion angle degree.
Invention content
Present invention aim to address the extra large cable immersion angles spread because of ship caused by swaying big rise and fall in cable operation process
Degree measures difficult technical problem, provides a kind of extra large cable immersion angle real-time monitoring device, can be carried out to extra large cable immersion angle real-time
Monitoring, while laying for extra large cable repeater during actual job is not interfered with also, and it is easy to use.
It is a further object of the present invention to provide it is a kind of it is reliable and stable, measurement accuracy is relatively high and monitoring data are visual
Extra large cable immersion angle method of real-time.
The object of the present invention is achieved like this：
A kind of dynamic adhesion formula dip measuring device, including：One support portion, a measurement portion, one first universal driving shaft and 1
Two universal driving shafts；The support portion is made of a rigid supporting rod and a universal joint, and one end of the rigid supporting rod is described in
Universal joint is connect with the installation site of paving cable ship so that the support portion can carry out water after being fixed on the installation site of paving cable ship
Plane Rotation and/or vertical plane rotation；The measurement portion is by a rigid link, one first restraining arm, one second restraining arm and one
Dip countion instrument forms, first restraining arm and the second restraining arm substantially diamond structure, in the upper of each restraining arm
Vertex and two edges are respectively equipped with a U-shaped wheel, and the lower base angle of the restraining arm is hatch frame, at the lower base angle
Opening be equipped with smooth surface hook-shaped restraining structure, one end of the rigid link, the rigid supporting rod the other end and
The upper apex angle of second restraining arm is coupled by second universal driving shaft, and the other end of the rigid link and described first is about
The upper apex angle of beam arm is coupled by first universal driving shaft, and the Dip countion instrument is mounted on the center of the rigid link,
For real-time monitoring calculation angle value, and result is uploaded to host computer and carries out visualization at computer interface interface and is shown.
Wherein, first universal driving shaft and/or second universal driving shaft are cylindrical roller bearing, along the axle center side of the roller bearing
To through equipped with a central shaft, the both ends of the surface of the roller bearing are stretched out at the both ends of the central shaft respectively, the rigid supporting rod, just
Property connecting rod and/or restraining arm be equipped with mounting hole, the end of the central shaft, which is fixed in corresponding mounting hole, makes the rigidity
Supporting rod, rigid link and/or restraining arm are coupled.
Wherein, the hook-shaped restraining structure is from one end of the opening across the outside for the other end for extending to the opening
Place forms a hook formation to arch upward to outside in the outside of the opening.So, when extra large cable is beated or wave
When frequency is very fast, the restraining arm will not take off from extra large cable.
Preferably, the axle center of the U-shaped wheel is closed structure, the restraining arm where the notch towards its of the U-shaped wheel
The inside of diamond structure.So, the groove of U-shaped wheel with the position of operative constraint extra large cable and can be bonded extra large cable surface scrolls.
Preferably, the U-shaped wheel is made of stainless steel.
Preferably, square tube or cylindrical tube can be used in the rigid supporting rod；Preferably, the rigid supporting rod is not using
Rust steel material is made.
Alternatively, three axis angular measurement sensors of high-precision may be used in the Dip countion instrument.
A kind of dynamic adhesion formula dip measuring device provided by the present invention, including support portion and measurement portion, support portion peace
It plays a supportive role in the installation site of paving cable ship, the effect of universal joint can ensure that measuring device can be with the movement of extra large cable
State carries out horizontal plane and/or vertical plane rotation；Measurement portion has certain dead weight, center of gravity on the lower side, can effectively prevent turning on one's side；Restraining arm
Using the diamond structure that inner space is larger, repeater can be allowed to pass through, under usual situation, the upper apex angle of restraining arm pastes always
Together in extra large cable surface, when occurring to turn to or unexpected flow measurement impacts, when extra large cable shifts in a short time, the side of restraining arm
Side or corner still can be bonded extra large cable surface so that the restraining arm of diamond structure always can be with dynamic adhesion in the extra large cable of movement
Surface；The installation of U-shaped wheel makes friction smaller, does not damage extra large cable protective layer；The lower base angle of restraining arm is hatch frame, when needing
Extra large cable can be facilitated to pick and place at any time, while the device caused by ship crosses macrorelief can be effectively prevent to break off relations or be unable to measure existing
As；Higher with measurement accuracy, easy to operate, the operation is stable, be quick on the draw, be simple in structure, method is reliable and visualization
High advantage.
The present invention also provides a kind of dynamic adhesion formula inclination angle measurement method using above-mentioned dip measuring device, this method
Include the following steps：
S1, the support portion of the dip measuring device is mounted in the installation site of paving cable ship；
S2, the extra large cable of movement is sequentially passed through to two of measurement portion substantially in the restraining arm of diamond structure, it is described about
Beam arm is bonded the surface of extra large cable and the extra large cable undulatory motion with movement always, while the restraining arm drives the rigid link pendulum
It is dynamic to rise and fall so that it is consistent that straight line where the rigid link with horizontal angle and extra large cable enters water inclination angle；
S3, the reality for acquiring obliquity information in real time by the Dip countion instrument and periodically calculating the acquisition moment with time interval t
Inclination alpha is surveyed, the calculating formula of the actual measurement inclination alpha is：
α=arcsin (Δ h/L),
In formula：L：The length of the rigid link of measurement portion,
Δh：The height difference of first universal driving shaft and the second universal driving shaft；
S4, basis preset the cycle T of duration, to asking flat by all actual measurement inclination alphas that step S3 is measured in cycle T
Mean value is to get to the current extra large cable immersion angle in cycle T；
S5, Dip countion instrument are uploaded to window interface by current extra large cable immersion angle result is calculated in step S4.
Preferably, in the step S3, time interval t is set as 1 second；In the step S4, cycle T is set as 15 seconds.
It is of course also possible to the duration at adjustment time interval and cycle T as needed.
Above-mentioned dynamic adhesion formula inclination angle measurement method provided by the present invention, can according to wave period will it is measured in real time
Immersion angle carries out period handling averagely, obtains the practical immersion angle degree stablized in the period, and cable operation is calculated and spread for surplus
Provide reliable and stable parameter；In the obtained current extra large cable immersion angle numerical value after average, wave can be ignored substantially
Wave influences；The present invention has the advantages that practical reliable, high certainty of measurement, stable conditions, easy to operate, and meets extra large cable repeater
It is lossless by and monitoring result stablize visual require.
Description of the drawings
By embodiment of the invention below and description taken together with the accompanying drawings, the other advantages and features of the present invention are shown, it should
Embodiment provides by way of example, and but it is not limited to this, wherein：
Fig. 1 is a kind of structural schematic diagram of a preferred embodiment of dynamic adhesion formula dip measuring device of the present invention.
Fig. 2 is the schematic diagram of the local detail structure (constraint arm configuration) in embodiment illustrated in fig. 1.
Fig. 3 is a kind of schematic diagram of the actual measurement inclination alpha of dynamic adhesion formula inclination angle measurement method of the present invention.
In figure：1, rigid supporting rod；2, universal joint；31, the first restraining arm；32, the second restraining arm；4, U-shaped wheel；41, hook
Shape restraining structure；5, rigid link；6, Dip countion instrument；71, the first universal driving shaft；72, the second universal driving shaft.
Specific implementation mode
A kind of dynamic adhesion formula dip measuring device as shown in Figure 1, including：Rigid supporting rod 1, universal joint 2, first are about
Beam arm 31, the second restraining arm 32, rigid link 5, Dip countion instrument 6, the first universal driving shaft 71 and the second universal driving shaft 72.Wherein, just
The support portion of property 2 groups of cost dip measuring devices of supporting rod 1 and universal joint；Rigid link 5, the constraint of the first restraining arm 31, second
The measurement portion of 6 groups of cost dip measuring devices of arm 32 and Dip countion instrument.
Rigid supporting rod 1 is the stainless steel cylindrical tube of a diameter of 5cm, and one end is by universal joint 2 and spreads cable ship (in figure not
Show) tail portion installation site connection, universal joint 2 be stainless steel casting, can be freely rotated, make in horizontal plane and vertical plane
Horizontal plane rotation and/or vertical plane rotation can be carried out by obtaining after support portion is fixed on installation site.
In conjunction with shown in Fig. 2, the first restraining arm 31 and the second restraining arm 32 are by the stainless steel of four a diameter of 2cm
The inner space of the substantially diamond structure that pipe is assembled into, the restraining arm 31,32 of diamond shape is big, can meet extra large cable repeater
It is smoothly lossless to pass through.One U-shaped wheel 4 is respectively housed in the upper vertex of restraining arm 31,32 and two edges, U-shaped wheel 4 is stainless steel
Material, axle center are closed structure, the inside of the diamond structure of the restraining arm where notch towards its, can be bonded extra large cable surface freedom
It rolls.The lower base angle of restraining arm 31,32 is hatch frame, is provided in the opening with the hook-shaped restraining structure 41 of smooth surface, hook
Shape restraining structure 41 is from one end of opening across the outside for the other end for extending to opening, and one is formed to outside in the outside of opening
The hook formation to arch upward.The upper apex angle of one end of rigid link 5, the other end of rigid supporting rod 1 and the second restraining arm 32 passes through
Second universal driving shaft 72 is coupled, and the upper apex angle of the other end of rigid link 5 and the first restraining arm 31 is coupled by the first universal driving shaft 71,
Dip countion instrument 6 is mounted on the center of rigid link 5, is used for real-time monitoring calculation angle value, and result is uploaded to upper
Machine simultaneously carries out visualization at computer interface interface and shows.
Rigid link 5 is the stainless-steel pipe of diameter 5cm, long 50cm.
First universal driving shaft 71 and the second universal driving shaft 72 are cylindrical roller bearing, run through along the axis direction of roller bearing and are equipped in one
The both ends of the surface of the roller bearing are stretched out at mandrel, the both ends of central shaft respectively, on rigid supporting rod 1, rigid link 5 and restraining arm 31,32
Equipped with mounting hole, the end of central shaft, which is fixed in corresponding mounting hole, makes rigid supporting rod 1, rigid link 5 and/or restraining arm
31,32 are coupled.
Dip countion instrument 6 is three axis angular measurement sensors of high-precision.
The present embodiment provides a kind of dynamic adhesion formula inclination angle measurement method, step is：
S1, the support portion of the dip measuring device is mounted in the installation site of paving cable ship.
S2, the extra large cable of movement is sequentially passed through to two of measurement portion substantially in the restraining arm of diamond structure, it is described about
Beam arm is bonded the surface of extra large cable and the extra large cable undulatory motion with movement always, while the restraining arm drives the rigid link pendulum
It is dynamic to rise and fall so that it is consistent that straight line where the rigid link with horizontal angle and extra large cable enters water inclination angle.
S3, the actual measurement inclination alpha for acquiring obliquity information and once per second calculating acquisition moment in real time by the Dip countion instrument,
It is described actual measurement inclination alpha calculating formula be：
α=arcsin (Δ h/L),
In formula：L：The length of the rigid link of measurement portion；
Δh：The height difference of first universal driving shaft and the second universal driving shaft；
S4, to being averaged to get to current in this 15 seconds by all actual measurement inclination alphas that step S3 is measured in 15 seconds
Extra large cable immersion angle；
S5, Dip countion instrument are uploaded to window interface by current extra large cable immersion angle result is calculated in step S4.
Although the present invention is hereinbefore illustrated according to preferred embodiment, it is not intended that the scope of the present invention is only
It is confined to above-mentioned structure, if what those skilled in the art can easily develop after reading above-mentioned explanation
Equivalent substitution structure, the equivalent changes and modifications made under the spirit and scope for not departing from the present invention should all be covered by this hair
Within bright the scope of the claims.
Claims (9)
1. a kind of dynamic adhesion formula dip measuring device, which is characterized in that including：One support portion, a measurement portion, one first linkage
Axis and one second universal driving shaft；
The support portion is made of a rigid supporting rod and a universal joint, and one end of the rigid supporting rod passes through the universal joint
It is connect with the installation site of paving cable ship so that the support portion can carry out horizontal plane turn after being fixed on the installation site of paving cable ship
The rotation of dynamic and/or vertical plane；
The measurement portion is made of a rigid link, one first restraining arm, one second restraining arm and a Dip countion instrument, and described
One restraining arm and the second restraining arm substantially diamond structure, respectively fill in the upper vertex of each restraining arm and two edges
There is a U-shaped wheel, the lower base angle of the restraining arm is hatch frame, and the opening at the lower base angle is equipped with the hook of smooth surface
Shape restraining structure, one end of the rigid link, the rigid supporting rod the other end and second restraining arm upper apex angle
It is coupled by second universal driving shaft, the upper apex angle of the other end of the rigid link and first restraining arm passes through described the
One universal driving shaft is coupled, and the Dip countion instrument is mounted on the center of the rigid link, is used for real-time monitoring calculation angle value,
And result is uploaded to host computer and carries out visualization at computer interface interface and is shown.
2. dip measuring device as described in claim 1, it is characterised in that：First universal driving shaft and/or described second
Moving axis is cylindrical roller bearing, runs through along the axis direction of the roller bearing and is equipped with a central shaft, the both ends of the central shaft are stretched respectively
Go out the both ends of the surface of the roller bearing, the rigid supporting rod, rigid link and/or restraining arm are equipped with mounting hole, the central shaft
End be fixed in corresponding mounting hole the rigid supporting rod, rigid link and/or restraining arm made to be coupled.
3. dip measuring device as described in claim 1, it is characterised in that：The hook-shaped restraining structure is from the one of the opening
End forms a hook formation to arch upward to outside across the outside for the other end for extending to the opening, in the outside of the opening.
4. dip measuring device as described in claim 1, it is characterised in that：The axle center of the U-shaped wheel is closed structure, described
The inside of the diamond structure of restraining arm where the notch towards its of U-shaped wheel.
5. dip measuring device as described in claim 1, it is characterised in that：The rigid supporting rod is square tube or cylinder
Pipe.
6. dip measuring device as described in claim 1, it is characterised in that：The rigid supporting rod and/or the U-shaped wheel are adopted
It is made of stainless steel.
7. dip measuring device as described in claim 1, it is characterised in that：The Dip countion instrument is three axis angle measurements of high-precision
Sensor.
8. a kind of dynamic adhesion formula inclination angle using the dip measuring device as described in any claim in claim 1-7 is surveyed
Amount method, which is characterized in that include the following steps：
S1, the support portion of the dip measuring device is mounted in the installation site of paving cable ship；
S2, the extra large cable of movement is sequentially passed through to two of measurement portion substantially in the restraining arm of diamond structure, the restraining arm
Always the surface of fitting extra large cable and the extra large cable undulatory motion with movement, while the restraining arm drives the rigid link to swing
Volt so that it is consistent that straight line where the rigid link with horizontal angle and extra large cable enters water inclination angle；
S3, it acquires obliquity information in real time by the Dip countion instrument and periodically calculates the actual measurement at acquisition moment with time interval t and incline
Angle α, the calculating formula for surveying inclination alpha are：
α=arcsin (Δ h/L),
In formula：L：The length of the rigid link of measurement portion；
Δh：The height difference of first universal driving shaft and the second universal driving shaft；
S4, basis preset the cycle T of duration, to being averaging by all actual measurement inclination alphas that step S3 is measured in cycle T
Value is to get to the current extra large cable immersion angle in cycle T；
S5, Dip countion instrument are uploaded to window interface by current extra large cable immersion angle result is calculated in step S4.
9. inclination angle measurement method as claimed in claim 8, it is characterised in that：In the step S3, time interval t is set as 1
Second；In the step S4, cycle T is set as 15 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374397.9A CN108519074A (en) | 2018-04-24 | 2018-04-24 | A kind of dynamic adhesion formula dip measuring device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374397.9A CN108519074A (en) | 2018-04-24 | 2018-04-24 | A kind of dynamic adhesion formula dip measuring device and method |
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| Publication Number | Publication Date |
|---|---|
| CN108519074A true CN108519074A (en) | 2018-09-11 |
Family
ID=63430082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810374397.9A Pending CN108519074A (en) | 2018-04-24 | 2018-04-24 | A kind of dynamic adhesion formula dip measuring device and method |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459415A (en) * | 2021-12-29 | 2022-05-10 | 南京航空航天大学 | Device and method for measuring rotation angle of spherical joint |
| CN115406409A (en) * | 2022-11-01 | 2022-11-29 | 四川中科川信科技有限公司 | Dip angle measurement monitoring equipment |
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| GB1383744A (en) * | 1971-06-01 | 1974-02-12 | Ferranti Ltd | Indicating devices |
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| CN2087329U (en) * | 1990-09-18 | 1991-10-23 | 武汉水运工程学院 | Intelligent measuring instrument for bent pipe resilience elongation |
| JP2001074456A (en) * | 1999-09-08 | 2001-03-23 | Hitachi Zosen Corp | Method and apparatus for measurement of position of instrument equipped with cable |
| CN203107122U (en) * | 2012-12-19 | 2013-08-07 | 苏州大学 | Dynamic joint angle measuring device |
| CN204753675U (en) * | 2015-04-23 | 2015-11-11 | 中交疏浚技术装备国家工程研究中心有限公司 | Trailing suction hopper dredger drag arm gesture measuring equipment |
| KR101590066B1 (en) * | 2015-08-19 | 2016-02-01 | (주)지오티에스 | Submarine cable guide device using caterpillar and submarine cable spreading monitoring system |
| CN208109082U (en) * | 2018-04-24 | 2018-11-16 | 中国海底电缆建设有限公司 | A kind of dynamic adhesion formula dip measuring device |
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2018
- 2018-04-24 CN CN201810374397.9A patent/CN108519074A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1383744A (en) * | 1971-06-01 | 1974-02-12 | Ferranti Ltd | Indicating devices |
| JPH0179318U (en) * | 1987-11-10 | 1989-05-29 | ||
| CN2087329U (en) * | 1990-09-18 | 1991-10-23 | 武汉水运工程学院 | Intelligent measuring instrument for bent pipe resilience elongation |
| JP2001074456A (en) * | 1999-09-08 | 2001-03-23 | Hitachi Zosen Corp | Method and apparatus for measurement of position of instrument equipped with cable |
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| CN208109082U (en) * | 2018-04-24 | 2018-11-16 | 中国海底电缆建设有限公司 | A kind of dynamic adhesion formula dip measuring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459415A (en) * | 2021-12-29 | 2022-05-10 | 南京航空航天大学 | Device and method for measuring rotation angle of spherical joint |
| CN115406409A (en) * | 2022-11-01 | 2022-11-29 | 四川中科川信科技有限公司 | Dip angle measurement monitoring equipment |
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