CN201680938U - Prestressed cable real-time monitoring device - Google Patents
Prestressed cable real-time monitoring device Download PDFInfo
- Publication number
- CN201680938U CN201680938U CN2010202086150U CN201020208615U CN201680938U CN 201680938 U CN201680938 U CN 201680938U CN 2010202086150 U CN2010202086150 U CN 2010202086150U CN 201020208615 U CN201020208615 U CN 201020208615U CN 201680938 U CN201680938 U CN 201680938U
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- Prior art keywords
- prestressed
- coil
- prestressed cable
- secondary coil
- monitoring device
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- Expired - Lifetime
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 13
- 238000010276 construction Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000005284 excitation Effects 0.000 abstract 2
- 239000011241 protective layer Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Abstract
The utility model provides a prestressed cable real-time monitoring device, comprising a sensor and a data collector, wherein the data collector is connected with the sensor. The device is characterized in that the sensor forms a hollow cylinder shape; a hollow cavity through which the prestressed cable can penetrate is formed in the axis direction; two coils which are wound vertical to the axis direction are arranged between the inner wall and outer wall of the cylinder body, one coil is a secondary coil near the inner wall of the cylinder body, and the other coil is an excitation coil which is wound outside the secondary coil and mutually insulates with the secondary coil; and the excitation coil is connected with the data collector through a data line. The utility model can be used for measuring the tension of the prestressed component in the construction and operation phases, has little error and high precision, is suitable for the field of prestressed engineering fields of bridge cables, external cables of prestressed structures and the like, is solid and durable, can be directly sleeved outside the prestressed cable, has no damage to the outer protective layer, has long service life, and is suitable for long-term monitoring on the prestressed cable states.
Description
Technical field
The utility model relates to a kind of device for measuring force, specifically relates to a kind of prestress real-time monitoring device.
Background technology
Along with the progress and development of science and technology, prestressing technique has obtained affirming of expert at aspects such as a lot of large-scale construction projects such as bridge cable, prestressed concrete, ground anchorages, and obtains application more and more widely.Prestressed cable is the force application component of most critical in all prestressed structures, and the stressed and user mode of prestressed cable is directly connected to the safety and the serviceable life of engineering structure, and development is imperative to the technological means of the stress monitoring in real time of drag-line.
Summary of the invention
The purpose of this utility model provides a kind of stressing conditions that can monitor prestressed cable in real time, the prestress real-time monitoring device of the state of reaction prestressed structure.
The technical solution of the utility model is:
A kind of prestressed cable real-time monitoring device, comprise sensor and the data acquisition unit that is attached thereto, it is characterized in that: described sensor is a hollow columnar, form the chamber of the hollow of passing for prestressed cable along its axis direction, coil perpendicular to the axis direction coiling is arranged between described inboard wall of cylinder and the outer wall, described coil is two, one is the secondary coil near inboard wall of cylinder, another be wound on secondary coil outer and with the magnetizing coil of secondary coil mutually insulated, described magnetizing coil is connected with data acquisition unit by data line.
Described sensor and data acquisition unit have a plurality of.
Prestress real-time monitoring device of the present utility model can be measured the tension force of prestressed component in construction and operation stage; error is little; the precision height; be applicable to the prestress engineering fields such as external drag-line of bridge cable, prestressed structure; durable, directly be enclosed within prestressed cable and use outward, do not destroy the external protection of member; long service life, the long term monitoring that is fit to the prestressed cable state is used.
Description of drawings
Fig. 1 is the structural representation of prestressed cable real-time monitoring device of the present utility model.
Fig. 2 is a decomposing state synoptic diagram of the present utility model.
Fig. 3 is a user mode synoptic diagram of the present utility model.
The figure number explanation
1 ... prestressed cable 2 ... chamber 3 ... cylinder 4 ... secondary coil 5 ... magnetizing coil
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Of the present utility model a kind of prestressed cable real-time monitoring device as Figure 1-3, appearance is a hollow cylinder 3, form the chamber 2 of the hollow of passing for prestressed cable 1 along its axis direction, coil perpendicular to the axis direction coiling is arranged between cylinder 3 inwalls and the outer wall, coil is two, one is the secondary coil 4 near inboard wall of cylinder, another be wound on secondary coil outer and with the magnetizing coil 5 of secondary coil mutually insulated, magnetizing coil 5 is connected with the data acquisition unit (not shown) by data line.
Prestress real-time monitoring device of the present utility model is that the prestressed cable that basis is passed is that ferrimagnet is subjected to the external loads effect; internal stress changes; the characteristics that its magnetic permeability also changes thereupon; directly punching is enclosed within the prestressed component outside; reflect STRESS VARIATION by the variation of measuring magnetic permeability; and then measure tension force on the drag-line; show this tension force by data acquisition unit; so can measure the tension force of prestressed component in construction and operation stage; error is little; the precision height is applicable to bridge cable; prestress engineering fields such as the external drag-line of prestressed structure, durable; directly being enclosed within prestressed cable uses outward; do not destroy the external protection of member, long service life, the long term monitoring that is fit to the prestressed cable state is used.
During work, the magnetizing coil input voltage produces magnetic field in the chamber, the secondary coil induced field, prestressed cable and monitoring device constitute magnetic flux transducer, and prestressed cable becomes the part of sensor, directly monitor the state of drag-line, data acquisition unit receives and sends signal, output voltage.
Above-mentionedly only several specific embodiments in the utility model are illustrated; but can not be as protection domain of the present utility model; every equivalence of having done according to the design spirit in the utility model changes or modifies, and all should think to fall into protection domain of the present utility model.
Claims (2)
1. prestressed cable real-time monitoring device, comprise sensor and the data acquisition unit that is attached thereto, it is characterized in that: described sensor is a hollow columnar, form the chamber of the hollow of passing for prestressed cable along its axis direction, coil perpendicular to the axis direction coiling is arranged between described inboard wall of cylinder and the outer wall, described coil is two, one is the secondary coil near inboard wall of cylinder, another be wound on secondary coil outer and with the magnetizing coil of secondary coil mutually insulated, described magnetizing coil is connected with data acquisition unit by data line.
2. prestressed cable real-time monitoring device according to claim 1 is characterized in that: sensor and data acquisition unit have a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202086150U CN201680938U (en) | 2010-05-26 | 2010-05-26 | Prestressed cable real-time monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202086150U CN201680938U (en) | 2010-05-26 | 2010-05-26 | Prestressed cable real-time monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201680938U true CN201680938U (en) | 2010-12-22 |
Family
ID=43345978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202086150U Expired - Lifetime CN201680938U (en) | 2010-05-26 | 2010-05-26 | Prestressed cable real-time monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201680938U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175359A (en) * | 2011-02-11 | 2011-09-07 | 重庆大学 | Passive magnetism monitoring method and device for wire rope/rod component stress |
| CN102419233A (en) * | 2011-12-14 | 2012-04-18 | 中国矿业大学 | Device and method for detecting tension of elliptic sleeve type steel wire rope |
| CN102426070A (en) * | 2011-12-31 | 2012-04-25 | 交通运输部公路科学研究所 | Device and method for testing along-path stress distribution state of prestressed steel beam |
| CN102628720A (en) * | 2012-04-13 | 2012-08-08 | 浙江省交通规划设计研究院 | Non-contact type inhaul cable force measuring device based on electromagnetic induction |
| CN102680156A (en) * | 2012-05-04 | 2012-09-19 | 东南大学 | Coupled external mounted steel stay rope force detection device and method |
| CN103728059A (en) * | 2013-12-17 | 2014-04-16 | 柳州市自动化科学研究所 | Steel cable prestress value magnetic flux control system |
| CN106768503A (en) * | 2016-11-14 | 2017-05-31 | 南昌航空大学 | A kind of magnetic-elastic stress sensor and cable cable force measurement system |
| CN108489641A (en) * | 2018-03-20 | 2018-09-04 | 重庆交通大学 | A kind of prestress wire stress measurement device and method |
| CN109141688A (en) * | 2018-07-25 | 2019-01-04 | 付爱芝 | Bridge stress measurement system and its test method based on transformer model |
| CN109443622A (en) * | 2019-01-08 | 2019-03-08 | 北京奇力建通工程技术有限公司 | Suo Li detection method and device and cable tension sensor |
-
2010
- 2010-05-26 CN CN2010202086150U patent/CN201680938U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175359A (en) * | 2011-02-11 | 2011-09-07 | 重庆大学 | Passive magnetism monitoring method and device for wire rope/rod component stress |
| CN102175359B (en) * | 2011-02-11 | 2012-08-01 | 重庆大学 | Passive magnetism monitoring method and device for wire rope/rod component stress |
| CN102419233A (en) * | 2011-12-14 | 2012-04-18 | 中国矿业大学 | Device and method for detecting tension of elliptic sleeve type steel wire rope |
| CN102426070A (en) * | 2011-12-31 | 2012-04-25 | 交通运输部公路科学研究所 | Device and method for testing along-path stress distribution state of prestressed steel beam |
| CN102628720A (en) * | 2012-04-13 | 2012-08-08 | 浙江省交通规划设计研究院 | Non-contact type inhaul cable force measuring device based on electromagnetic induction |
| CN102680156B (en) * | 2012-05-04 | 2013-11-06 | 东南大学 | Coupled external mounted steel stay rope force detection device and method |
| CN102680156A (en) * | 2012-05-04 | 2012-09-19 | 东南大学 | Coupled external mounted steel stay rope force detection device and method |
| CN103728059A (en) * | 2013-12-17 | 2014-04-16 | 柳州市自动化科学研究所 | Steel cable prestress value magnetic flux control system |
| CN106768503A (en) * | 2016-11-14 | 2017-05-31 | 南昌航空大学 | A kind of magnetic-elastic stress sensor and cable cable force measurement system |
| CN106768503B (en) * | 2016-11-14 | 2019-06-25 | 南昌航空大学 | A kind of magnetic-elastic stress sensor and cable cable force measurement system |
| CN108489641A (en) * | 2018-03-20 | 2018-09-04 | 重庆交通大学 | A kind of prestress wire stress measurement device and method |
| CN109141688A (en) * | 2018-07-25 | 2019-01-04 | 付爱芝 | Bridge stress measurement system and its test method based on transformer model |
| CN109443622A (en) * | 2019-01-08 | 2019-03-08 | 北京奇力建通工程技术有限公司 | Suo Li detection method and device and cable tension sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: FENGMAN POWER PLANT Effective date: 20130607 Owner name: STATE GRID XINYUAN HYDROELECTRIC COMPANY LIMITED F Effective date: 20130607 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 132108 JILIN, JILIN PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130607 Address after: 100031 Beijing Chang'an Avenue Xicheng District 86 Patentee after: State Grid Corporation of China Patentee after: State Grid Xinyuan Hydropower Co., Ltd. Patentee after: Fengman Power Plant Address before: Fengman District Fengcheng street 132108 Jilin city of Jilin province No. 2 Patentee before: Fengman Power Plant |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101222 |
|
| CX01 | Expiry of patent term |