CN114509199A - Outdoor on-line monitoring tension sensor - Google Patents
Outdoor on-line monitoring tension sensor Download PDFInfo
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- CN114509199A CN114509199A CN202210189522.5A CN202210189522A CN114509199A CN 114509199 A CN114509199 A CN 114509199A CN 202210189522 A CN202210189522 A CN 202210189522A CN 114509199 A CN114509199 A CN 114509199A
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- pressure sensor
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- tension sensor
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 41
- 239000003292 glue Substances 0.000 claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims description 16
- 238000010248 power generation Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000009530 blood pressure measurement Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 7
- 230000007774 longterm Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention relates to the technical field of mechanical sensors and discloses an outdoor on-line monitoring tension sensor which comprises a hollow cylinder structure consisting of an upper shell and a lower shell, wherein the upper shell and the lower shell are clamped with each other; rely on solar cell power supply, can work in the open air for a long time, good protective properties has, and the circuit board fills the waterproof glue, there is the wash port inside, can tolerate the environment of drenching with rain for a long time, wireless module has, can be with the data that the test obtained, send to the terminal through wireless communication protocol and carry out online real-time supervision, this outdoor on-line monitoring tension sensor, the ingenious fixed point that has utilized the casing both ends, the three-point type side pressure measurement principle of casing both ends fixed point and pressure sensor measuring point has been formed, the structure is small and exquisite, simple to operate.
Description
Technical Field
The invention relates to the technical field of mechanical sensors, in particular to an outdoor on-line monitoring tension sensor.
Background
In the fields of railways, electric power, bridges, roads, mines and the like, steel cables, ropes and cables are often laid outdoors for a long distance and are used for bearing force of structures, reinforcing structures or transmitting signals and the like, the tension of the ropes is the most critical parameter for construction, and severe changes of the rope tension often cause adverse effects on the system, so that the method is particularly critical for measuring the rope tension. Most of the tension measuring instruments sold on the market at present belong to handheld devices, and the requirements of regularly detecting tension can be met. The rope working outdoors is susceptible to weather and natural disasters, so that damage and faults are easy to occur, and normal operation of railways, electric power, bridges and highways is affected.
A typical application scenario for online tension monitoring is a catenary of a high-speed rail catenary. The installation tension of a catenary of a high-speed rail contact network is usually 15kN, and the tension value is realized by counterweights at two ends of the catenary. The catenary of the high-speed rail contact network is an important component of a high-speed rail line, and the normal operation of the high-speed rail can be ensured only when the catenary works normally. Particularly, under the conditions of extreme weather and natural disasters, a high-speed rail contact net is easily damaged by the influence of strong wind, debris flow, earthquake and the like, if the damage is not found in time, serious hidden dangers can be caused to the life safety of high-speed rail passengers, at present, a railway head office carries out routing inspection by a large amount of manpower in skylight time (2-5 points in the morning) of high-speed rail operation, and the problem is found and reported in time. In addition, after the service life of the catenary of a high-speed rail contact network is long, due to the specific fatigue and hysteresis characteristics of metals, the tension value of the catenary changes, and at present, a railway general company lacks scientific catenary operation monitoring data, so that the catenary can not be accurately judged to be replaced in 10 years or 20 years, and therefore an outdoor online monitoring tension sensor which can be used for online monitoring, outdoor electricity taking, low power consumption, wireless data transmission, has a protection characteristic and is relatively portable is urgently needed.
At present, the most common tension sensor is a lateral pressure type tension sensor, the structure of which is shown in fig. 1, the sensor ejects an angle θ out of an originally straight rope, and the tension value of the rope is obtained by measuring the pressure in the direction perpendicular to the rope and resolving through force decomposition, and the tension sensor is not suitable for outdoor online monitoring application, and the main reasons are as follows:
1) the sensor has poor protection characteristics, and has poor environmental adaptability to external collision, impact, rain and the like when used outdoors for a long time;
2) the sensor is large in size, and if a shell is matched for protection, the whole sensor is large in size and heavy in weight, and is not suitable for outdoor application;
3) the sensor needs to be powered when working, only is provided with a battery, and cannot work outdoors for a long time without any waterproof design;
4) if the sensor is used for measuring a rope with high tension, the size of the rope needs to be made long enough to eject an angle theta suitable for measurement, and if the sensor is used for online monitoring, a shell needs to be provided for the sensor, so that the sensor is large in size and weight.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an outdoor online monitoring tension sensor which is powered by a solar cell, has the characteristics of water resistance, collision resistance, low power consumption and the like, can realize a long-term online monitoring function when being installed on a rope and a cable, has the advantage of providing data support for the operation and health online monitoring of railways, electric power, bridges and roads, and solves the problems that the existing side-pressure type tension sensor needs to rely on an external power supply when working, has poor protection characteristics, is handheld in a working mode, and cannot be applied to occasions needing long-term real-time tension monitoring outdoors.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an outdoor on-line monitoring tension sensor, includes the hollow tube structure of compriseing last casing and lower casing, go up the casing with lower casing mutual joint, the top fixedly connected with solar cell panel of going up the casing, the inside intermediate position department of casing is equipped with the pressure sensor who is used for monitoring rope pressure state down, and is surveyed the rope and passes in proper order the rope via hole of hollow tube, pressure sensor's contact hole with the rope of hollow tube is walked, the last signal processing circuit board that is equipped with of pressure sensor, the wash port has been seted up to the inside wall of casing down.
Preferably, the outer surface of the upper shell is provided with positioning marks.
Preferably, pressure sensor includes pressure sensor mount pad, pressure sensor base and pressure sensor briquetting, the pressure sensor mount pad install in the inside wall of casing down, the top fixedly connected with pressure sensor base of pressure sensor mount pad, the top joint of pressure sensor base has the pressure sensor briquetting, the pressure sensor base with the through wires hole has been seted up to the connection face of pressure sensor briquetting.
Preferably, the outer side of the signal processing circuit board is covered with waterproof protective glue.
Preferably, an elastic clamping ring is installed on a cylinder body formed by the upper shell and the lower shell and comprises a ring body, a spring is fixedly connected to the inner side wall of the ring body, and an arc-shaped rubber plate is fixedly connected to one end of the spring.
Preferably, the number of the arc-shaped rubber plates is four, and the four arc-shaped rubber plates are distributed in a central symmetry mode according to the circle center position of the ring body.
Preferably, the outer side wall of the elastic clamping ring is fixedly connected with a miniature wind driven generator, the miniature wind driven generator comprises a supporting rod, a generator is installed at the top end of the supporting rod, the storage battery is fixedly connected inside the lower shell, and the output end of the generator is electrically connected with the storage battery through a wire.
Preferably, two groups of symmetrical miniature wind driven generators are arranged on the elastic clamping ring.
(III) advantageous effects
Compared with the prior art, the invention provides an outdoor on-line monitoring tension sensor, which has the following beneficial effects:
1) the outdoor on-line monitoring tension sensor can be used for on-line monitoring of ropes in the industries of bridges, high-speed rails, electric power, petrochemical industry and the like; (ii) a
2) The outdoor on-line monitoring tension sensor is powered by a solar cell and can work outdoors for a long time;
3) the outdoor on-line monitoring tension sensor has good protection characteristics, the circuit board is filled with waterproof glue, and the interior of the circuit board is provided with the drain hole, so that the outdoor on-line monitoring tension sensor can resist a rain environment for a long time;
4) the outdoor online monitoring tension sensor is provided with a wireless module, and can send data obtained by testing to a terminal through a wireless communication protocol for online real-time monitoring;
5) the outdoor on-line monitoring tension sensor ingeniously utilizes the fixed points at the two ends of the shell to form a three-point side pressure measurement principle of the fixed points at the two ends of the shell and the measurement point of the pressure sensor, and has the advantages of small structure and convenience in installation;
6) the outdoor on-line monitoring tension sensor can be popularized to any occasion needing on-line monitoring tension for application.
Drawings
FIG. 1 is a side pressure type tension sensor;
FIG. 2 is an external view of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a pressure sensor of the present invention;
fig. 5 is a view of a pressure sensor according to the present invention.
In the figure: 1. an upper housing; 2. a lower housing; 3. a solar panel; 4. positioning a mark; 5. a pressure sensor mount; 6. a pressure sensor base; 7. a pressure sensor pressing block; 8. threading holes; 9. a signal processing circuit board; 10. a drain hole; 11. an elastic clamping ring; 111. a ring body; 112. a spring; 113. an arc-shaped rubber plate; 12. a miniature wind power generator; 121. a support bar; 122. a generator; 13. and (4) a storage battery.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
An outdoor on-line monitoring tension sensor comprises a hollow cylinder structure consisting of an upper shell 1 and a lower shell 2, wherein the outer surface of the upper shell 1 is provided with a positioning mark 4, the upper shell 1 and the lower shell 2 are mutually clamped, the top of the upper shell 1 is fixedly connected with a solar cell panel 3, a pressure sensor for monitoring the pressure state of a rope is arranged at the middle position inside the lower shell 2, the rope to be detected sequentially passes through a rope through hole of the hollow cylinder, a contact hole of the pressure sensor and a rope outlet hole of the hollow cylinder, the pressure sensor comprises a pressure sensor mounting seat 5, a pressure sensor base 6 and a pressure sensor pressing block 7, the pressure sensor mounting seat 5 is mounted on the inner side wall of the lower shell 2, the top of the pressure sensor mounting seat 5 is fixedly connected with the pressure sensor base 6, and the top of the pressure sensor base 6 is clamped with the pressure sensor pressing block 7, the pressure sensor base 6 and the pressure sensor briquetting 7 are connected and have been seted up through wires hole 8, and the last signal processing circuit board 9 that is equipped with of pressure sensor, the outside of signal processing circuit board 9 covers has waterproof protection to glue, and the wash port 10 has been seted up to the inside wall of lower casing 2.
Referring to fig. 2-5, a solar panel 3 is fixed on the upper casing 1 for providing power to the sensor, and a positioning mark 4 is installed on the upper casing 1 for aligning an angle during installation;
a pressure sensor is arranged in the middle of the lower shell 2 and consists of two parts, namely a pressure sensor pressing block 7 and a pressure sensor base 6, a thread hole 8 of a round pressure sensor rope is formed between the pressing block and the base and used for passing through the rope to be detected, and the whole pressure sensor is fixed on a pressure sensor mounting seat 5 of the lower shell 2 through screws;
the center point of the rope through hole of the pressure sensor is higher than the center point of the rope through hole of the rope to be measured by a certain distance, when the tension sensor is installed, the rope to be measured can be ejected out by an angle theta (generally about 3 degrees, the undersize measurement error is larger, the overlarge installation force is needed, and the rope is easily damaged) under the action of the pressure sensor pressing block 7, if the pressure sensed by the pressure sensor is N, the theoretical tension of the rope to be measured is N/Sin theta, and in the actual working condition, due to the influence of installation friction and processing tolerance, the actual tension value has a certain difference with the theoretical value, so that the real working condition needs to be simulated on a tensile machine, and the tension sensor is tested and calibrated;
the signal processing circuit board 9 comprises two functions, the first function is signal conditioning of the pressure sensor, the output voltage of the solar cell reaches a voltage stabilizing chip of the signal processing board, the output of the voltage stabilizing chip supplies power to the pressure sensor, a single chip on the signal processing circuit board 9 collects and quantizes the output signal of the pressure sensor, performs compensation processing according to test calibration data, converts the output signal into a digital signal and outputs the digital signal to the wireless communication module, and the wireless communication protocol can be Zigbee or NB-IOT (Internet of things);
in order to carry out online monitoring outdoors for a long time, after the sensor is manufactured, waterproof protective glue is filled in the lower shell 2, the glue is filled on the principle that the signal processing circuit board 9 is completely covered, and the glue is leaked out of the position of the drain hole 10 of the lower shell, so that the circuit board is waterproof and anti-vibration in the long-term use process, and accumulated water can be timely and effectively drained out of the shell;
the upper shell and the lower shell are fixed through fastening screws at two ends, and in order to increase the fixing strength, screw glue is coated on the screws;
this on-line monitoring tension sensor during operation is supplied power for signal processing circuit board 9 and wireless communication module by solar cell panel 3, and signal processing circuit board 9 is responsible for supplying power for pressure sensor to gather pressure sensor's output data in real time, the inside singlechip of signal processing circuit board calculates the compensation back to measured data, sends for wireless communication module through digital mode, and wireless communication module sends the tension value to the terminal and carries out real-time supervision.
Example two
The function of fastening and providing another power generation mode is added on the basis of the first embodiment.
An elastic clamping ring 11 is installed on a cylinder body formed by the upper shell 1 and the lower shell 2, the elastic clamping ring 11 comprises a ring body 111, the inner side wall of the ring body 111 is fixedly connected with a spring 112, one end of the spring 112 is fixedly connected with an arc-shaped rubber plate 113, the number of the arc-shaped rubber plates 113 is four, and the four arc-shaped rubber plates 113 are centrally and symmetrically distributed according to the circle center position of the ring body 111;
the miniature aerogenerator 12 of lateral wall fixedly connected with of elasticity grip ring 11 is equipped with the miniature aerogenerator 12 of two sets of symmetries on the elasticity grip ring 11, and miniature aerogenerator 12 includes bracing piece 121, and generator 122 is installed on the top of bracing piece 121, and lower casing 2's inside fixedly connected with battery 13, generator 122's output passes through the wire and is connected with inside battery 13 electricity.
Referring to fig. 2-5, after the installation, the elastic clamping ring 11 can be fastened instead of screws, so that the installation and the disassembly are convenient, when the device is used, the device can be fixed only by inserting the elastic clamping ring 11, meanwhile, the miniature wind driven generator 12 is arranged on the outer side of the elastic clamping ring 11, and the miniature wind driven generator 12 can supply power to the storage battery 13, so that the device can still be used under the condition of no illumination.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an outdoor on-line monitoring tension sensor which characterized in that: the solar rope detection device comprises a hollow cylinder structure consisting of an upper shell (1) and a lower shell (2), wherein the upper shell (1) is connected with the lower shell (2) in a clamped mode, a solar cell panel (3) is fixedly connected to the top of the upper shell (1), a pressure sensor used for monitoring the pressure state of a rope is arranged at the middle position inside the lower shell (2), the rope to be detected sequentially penetrates through a rope through hole of the hollow cylinder, a contact hole of the pressure sensor and a rope hole of the hollow cylinder, a signal processing circuit board (9) is arranged on the pressure sensor, and a water drainage hole (10) is formed in the inner side wall of the lower shell (2).
2. The outdoor on-line monitoring tension sensor according to claim 1, characterized in that: the outer surface of the upper shell (1) is provided with a positioning mark (4).
3. The outdoor on-line monitoring tension sensor according to claim 1, characterized in that: pressure sensor includes pressure sensor mount pad (5), pressure sensor base (6) and pressure sensor briquetting (7), pressure sensor mount pad (5) install in the inside wall of casing (2) down, the top fixedly connected with pressure sensor base (6) of pressure sensor mount pad (5), the top joint of pressure sensor base (6) has pressure sensor briquetting (7), pressure sensor base (6) with threading hole (8) have been seted up to the connection face of pressure sensor briquetting (7).
4. The outdoor on-line monitoring tension sensor according to claim 1, characterized in that: the outer side of the signal processing circuit board (9) is covered with waterproof protective glue.
5. The outdoor on-line monitoring tension sensor according to claim 1, characterized in that: go up casing (1) with install elasticity grip ring (11) on the barrel that casing (2) are constituteed down, elasticity grip ring (11) are including ring body (111), the inside wall fixedly connected with spring (112) of ring body (111), the one end fixedly connected with arc rubber slab (113) of spring (112).
6. The outdoor on-line monitoring tension sensor according to claim 5, characterized in that: the number of the arc-shaped rubber plates (113) is four, and the four arc-shaped rubber plates (113) are distributed in a central symmetry mode according to the circle center position of the ring body (111).
7. The outdoor on-line monitoring tension sensor according to claim 5, characterized in that: the utility model discloses a miniature wind power generation system, including elasticity grip ring (11), lateral wall fixedly connected with miniature wind power generation machine (12) of elasticity grip ring (11), miniature wind power generation machine (12) are including bracing piece (121), generator (122) are installed on the top of bracing piece (121), inside fixedly connected with battery (13) of casing (2) down, the output of generator (122) passes through the wire and inside battery (13) electricity is connected.
8. The outdoor on-line monitoring tension sensor according to claim 7, characterized in that: two groups of symmetrical miniature wind driven generators (12) are arranged on the elastic clamping ring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210189522.5A CN114509199A (en) | 2022-02-28 | 2022-02-28 | Outdoor on-line monitoring tension sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210189522.5A CN114509199A (en) | 2022-02-28 | 2022-02-28 | Outdoor on-line monitoring tension sensor |
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| CN114509199A true CN114509199A (en) | 2022-05-17 |
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| CN202210189522.5A Pending CN114509199A (en) | 2022-02-28 | 2022-02-28 | Outdoor on-line monitoring tension sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114993540A (en) * | 2022-08-02 | 2022-09-02 | 国网江西省电力有限公司建设分公司 | Data acquisition, protection and storage device for tension sensor |
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|---|---|---|---|---|
| FR2617282A1 (en) * | 1987-06-26 | 1988-12-30 | Sud Est Electro Mecanique | Device for measuring and monitoring the tension in a belt using constant deformation with measurement of the force exerted on a means acting as a strain gauge |
| CN103528745A (en) * | 2013-10-25 | 2014-01-22 | 中国矿业大学 | Device and method for monitoring tension of steel wire rope of FBG (fiber bragg grating) compression type mine hoisting equipment |
| CN107505076A (en) * | 2017-09-05 | 2017-12-22 | 中铁第勘察设计院集团有限公司 | Contact net tension monitoring device |
| CN206891633U (en) * | 2017-03-16 | 2018-01-16 | 四川信达轨道交通设备有限责任公司 | OCS Messenger Wire tension force on-Line Monitor Device |
| CN208606923U (en) * | 2018-12-04 | 2019-03-15 | 康九龙 | A kind of railway overhead contact system catenary tension monitoring system |
| CN110987270A (en) * | 2019-11-01 | 2020-04-10 | 成都云铁智能交通科技有限公司 | Contact net tension sensor device |
| CN211478308U (en) * | 2019-12-31 | 2020-09-11 | 河南长海工程咨询有限公司 | Water and soil conservation detection device based on satellite remote sensing |
| CN212845686U (en) * | 2020-09-22 | 2021-03-30 | 中铁五局集团电务工程有限责任公司 | Portable monitoring device for high-speed rail contact network |
| CN213259090U (en) * | 2020-09-10 | 2021-05-25 | 长江大学 | Building outer wall body processing clamping device |
| CN113917286A (en) * | 2021-10-27 | 2022-01-11 | 国网辽宁省电力有限公司辽阳供电公司 | Automatic tension measuring system in power transmission line |
-
2022
- 2022-02-28 CN CN202210189522.5A patent/CN114509199A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2617282A1 (en) * | 1987-06-26 | 1988-12-30 | Sud Est Electro Mecanique | Device for measuring and monitoring the tension in a belt using constant deformation with measurement of the force exerted on a means acting as a strain gauge |
| CN103528745A (en) * | 2013-10-25 | 2014-01-22 | 中国矿业大学 | Device and method for monitoring tension of steel wire rope of FBG (fiber bragg grating) compression type mine hoisting equipment |
| CN206891633U (en) * | 2017-03-16 | 2018-01-16 | 四川信达轨道交通设备有限责任公司 | OCS Messenger Wire tension force on-Line Monitor Device |
| CN107505076A (en) * | 2017-09-05 | 2017-12-22 | 中铁第勘察设计院集团有限公司 | Contact net tension monitoring device |
| CN208606923U (en) * | 2018-12-04 | 2019-03-15 | 康九龙 | A kind of railway overhead contact system catenary tension monitoring system |
| CN110987270A (en) * | 2019-11-01 | 2020-04-10 | 成都云铁智能交通科技有限公司 | Contact net tension sensor device |
| CN211478308U (en) * | 2019-12-31 | 2020-09-11 | 河南长海工程咨询有限公司 | Water and soil conservation detection device based on satellite remote sensing |
| CN213259090U (en) * | 2020-09-10 | 2021-05-25 | 长江大学 | Building outer wall body processing clamping device |
| CN212845686U (en) * | 2020-09-22 | 2021-03-30 | 中铁五局集团电务工程有限责任公司 | Portable monitoring device for high-speed rail contact network |
| CN113917286A (en) * | 2021-10-27 | 2022-01-11 | 国网辽宁省电力有限公司辽阳供电公司 | Automatic tension measuring system in power transmission line |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114993540A (en) * | 2022-08-02 | 2022-09-02 | 国网江西省电力有限公司建设分公司 | Data acquisition, protection and storage device for tension sensor |
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