CN2476011Y - Piezomagnetic cable tension sensor for post-tensioning anchor cable system - Google Patents
Piezomagnetic cable tension sensor for post-tensioning anchor cable system Download PDFInfo
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- CN2476011Y CN2476011Y CN 01240121 CN01240121U CN2476011Y CN 2476011 Y CN2476011 Y CN 2476011Y CN 01240121 CN01240121 CN 01240121 CN 01240121 U CN01240121 U CN 01240121U CN 2476011 Y CN2476011 Y CN 2476011Y
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- cable
- post
- voltage
- piezomagnetic
- anchor cable
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Abstract
Provided is a piezomagnetic cable force sensor applied in a post-tensioned anchor-pulling cable system, which comprises a magnetizing coil, an induction coil and an induced voltage arranged on the cable body. The utility model draws an ac voltage u<0> cable force curve by a calibration before utilization, and is installed on-site conveniently. In application, only by providing a constant alternating voltage on the two ends of the magnetizing coil, and measuring the ac voltage through the induced voltage measure, the cable force of the cable body can be measured by the ac voltage u<0> cable force curve, and therefore providing a convenient and accurate measurement.
Description
The utility model relates to a kind of cable tension sensor of measuring stretch-draw anchor cable force, and concrete is a kind of piezomagnetic cable tension sensor of using in the post-tensioning anchor cable system.
The post-tensioning anchor cable system is widely used in pull bar of the tie-rod of the main push-towing rope of suspension cable, suspension bridge and suspension rod, arch bridge and suspension rod, building etc.For guaranteeing construction quality and safety, the Suo Li that can effectively measure anchor cable is particularly necessary, and the matter of utmost importance of measuring Suo Li provides a kind of to responsive, the practical sensor of Suo Li variation.
A kind of pad-board type fibre optic compression sensor of using in the post-tensioning anchor cable system (patented claim is known as 01239900.0), it is made of the anchor cable load backing plate of pad under post-tensioning anchor cable stretch-draw end, semiconductor laser, the Laser Measuring measuring device that is positioned on the optical fiber in the backing plate and is contained in the optical fiber two ends.It is a kind of sensor that Suo Li is changed sensitivity, practicality.Only need its load backing plate as anchor cable, being installed in the anchorage cable stretching end can use.But this sensor only is applicable to the anchor cable of new installation, because of for many anchor cables that install, coming into operation, can not dismantle anchor cable and reinstalls for this sensor is installed.
The purpose of this utility model is at above-mentioned situation, aims to provide a kind of simple in structure, easy for installation, good in anti-interference performance, can make things convenient for and detect effectively a kind of piezomagnetic cable tension sensor of using in the post-tensioning anchor cable system mounted, that coming into operation.
The implementation of the utility model purpose is, a kind of piezomagnetic cable tension sensor of using in the post-tensioning anchor cable system is made of the induced voltage measuring appliance 8 that is contained in field coil 2, the inductive coil 3 on the cable body 1 and be contained between inductive coil output terminal 6,7 two ends.Field coil has ac voltage input 4,5.
Accompanying drawing is the utility model structural representation.
With reference to accompanying drawing, the utility model is that field coil 2, inductive coil 3 and induced voltage measuring appliance are installed on the cable body of installing and using 1, and field coil 2, inductive coil 3, induced voltage measuring appliance adopt field coil, inductive coil, voltage measurement device commonly used.
When using the utility model, draw induced voltage U by demarcation earlier
0---the rope force curve.Apply a constant alternating voltage at field coil voltage input end 4,5 again, then produce the magnetic field of a constant intensity H on the coil, this magnetic field makes cable body 1 produce magnetic induction density B, B=μ H.
When anchor cable cable body 1 was subjected to pulling force, the magnetic permeability μ of cable body 1 reduced along with the increase of pulling force, and magnetic induction density B also reduces along with the increase of pulling force.Because of the sectional area A of cable body 1 is constant, and because of magnetic flux=B * A, so when B reduced, magnetic flux went out to reduce.
Number of turn N because of inductive coil 3 is constant again, and Δ t is regularly also constant in the frequency one of alternating current, and the changes delta φ of magnetic flux reduces with the reduction of φ, because of U
0=-N (Δ φ/Δ t) is so the induced voltage U of inductive coil 3 two ends 6 and 7
0Also along with reduction.Can measure induced voltage U between induction coil voltage output terminal 6 and 7 two ends with induced voltage measuring appliance 8
0Reduction spoke degree.Contrast the induced voltage U that draws by demarcation again
0---the rope force curve, can obtain Suo Li.
The utlity model has that power output is big, signal is strong, simple in structure, solid and reliable, easy for installation, good in anti-interference performance, Overload capacity is strong, be suitable for the advantage such as Static and dynamic cable force measurement.
Claims (1)
1, a kind of piezomagnetic cable tension sensor of in the post-tensioning anchor cable system, using, it is characterized in that being made of the induced voltage measuring appliance (8) that is contained in field coil (2), the inductive coil (3) on the cable body (1) and be contained between inductive coil output terminal (6), (7) two ends, field coil has ac voltage input (4), (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01240121 CN2476011Y (en) | 2001-05-23 | 2001-05-23 | Piezomagnetic cable tension sensor for post-tensioning anchor cable system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01240121 CN2476011Y (en) | 2001-05-23 | 2001-05-23 | Piezomagnetic cable tension sensor for post-tensioning anchor cable system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2476011Y true CN2476011Y (en) | 2002-02-06 |
Family
ID=33652410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01240121 Expired - Fee Related CN2476011Y (en) | 2001-05-23 | 2001-05-23 | Piezomagnetic cable tension sensor for post-tensioning anchor cable system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2476011Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858807A (en) * | 2010-06-10 | 2010-10-13 | 尹武良 | Steel cable tension measuring device based on rectangular hollow-core sensor and method thereof |
| CN101949401A (en) * | 2010-09-25 | 2011-01-19 | 三一集团有限公司 | Oil cylinder stroke detection device, hydraulic system and engineering machinery with system |
| CN102419233A (en) * | 2011-12-14 | 2012-04-18 | 中国矿业大学 | Elliptical sleeve type steel wire rope tension detection device and method |
| CN102016528B (en) * | 2008-04-28 | 2012-07-25 | 住友电工钢线株式会社 | Device for measuring tension |
| WO2013078981A1 (en) | 2011-11-30 | 2013-06-06 | 浙江大学 | Stress monitoring device of magneto-elastic and magneto-electric effect type |
| CN103728060A (en) * | 2013-12-17 | 2014-04-16 | 柳州市自动化科学研究所 | Steel cable prestress magnetic flux impulse measurement method |
| CN104062043A (en) * | 2014-06-11 | 2014-09-24 | 南昌航空大学 | Magnetoelastic cable force sensor capable of measuring in sliding mode in circumferential direction and measuring system thereof |
| CN106441681A (en) * | 2016-08-17 | 2017-02-22 | 江西飞尚科技有限公司 | Method for measuring force of cable through magnetization time |
| WO2017161943A1 (en) * | 2016-03-19 | 2017-09-28 | 深圳市前海康启源科技有限公司 | Non-invasive biosensing device |
| WO2017161942A1 (en) * | 2016-03-19 | 2017-09-28 | 深圳市前海康启源科技有限公司 | Non-invasive biosensing 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 |
-
2001
- 2001-05-23 CN CN 01240121 patent/CN2476011Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102016528B (en) * | 2008-04-28 | 2012-07-25 | 住友电工钢线株式会社 | Device for measuring tension |
| CN101858807A (en) * | 2010-06-10 | 2010-10-13 | 尹武良 | Steel cable tension measuring device based on rectangular hollow-core sensor and method thereof |
| CN101858807B (en) * | 2010-06-10 | 2012-02-01 | 尹武良 | Steel cable tension measuring device based on rectangular hollow-core sensor and method thereof |
| CN101949401A (en) * | 2010-09-25 | 2011-01-19 | 三一集团有限公司 | Oil cylinder stroke detection device, hydraulic system and engineering machinery with system |
| CN101949401B (en) * | 2010-09-25 | 2012-09-05 | 三一集团有限公司 | Oil cylinder stroke detection device, hydraulic system and engineering machinery with system |
| WO2013078981A1 (en) | 2011-11-30 | 2013-06-06 | 浙江大学 | Stress monitoring device of magneto-elastic and magneto-electric effect type |
| CN102419233A (en) * | 2011-12-14 | 2012-04-18 | 中国矿业大学 | Elliptical sleeve type steel wire rope tension detection device and method |
| CN103728060A (en) * | 2013-12-17 | 2014-04-16 | 柳州市自动化科学研究所 | Steel cable prestress magnetic flux impulse measurement method |
| CN104062043A (en) * | 2014-06-11 | 2014-09-24 | 南昌航空大学 | Magnetoelastic cable force sensor capable of measuring in sliding mode in circumferential direction and measuring system thereof |
| CN104062043B (en) * | 2014-06-11 | 2016-05-18 | 南昌航空大学 | Magnetic bullet cable tension sensor and measuring system thereof that a kind of circumferential slip is measured |
| WO2017161943A1 (en) * | 2016-03-19 | 2017-09-28 | 深圳市前海康启源科技有限公司 | Non-invasive biosensing device |
| WO2017161942A1 (en) * | 2016-03-19 | 2017-09-28 | 深圳市前海康启源科技有限公司 | Non-invasive biosensing system |
| CN106441681A (en) * | 2016-08-17 | 2017-02-22 | 江西飞尚科技有限公司 | Method for measuring force of cable through magnetization time |
| CN106441681B (en) * | 2016-08-17 | 2018-11-06 | 江西飞尚科技有限公司 | One kind measuring Suo Li methods by magnetizing time |
| CN108489641A (en) * | 2018-03-20 | 2018-09-04 | 重庆交通大学 | A kind of prestress wire stress measurement device and method |
| CN108489641B (en) * | 2018-03-20 | 2020-06-02 | 重庆交通大学 | Stress measuring device and method for prestressed steel strand |
| CN109141688A (en) * | 2018-07-25 | 2019-01-04 | 付爱芝 | Bridge stress measurement system and its test method based on transformer model |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhu Xiangyong Document name: Notice of termination |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |