CN202757721U - Magnetic-flux cable force detection device - Google Patents
Magnetic-flux cable force detection device Download PDFInfo
- Publication number
- CN202757721U CN202757721U CN 201220140323 CN201220140323U CN202757721U CN 202757721 U CN202757721 U CN 202757721U CN 201220140323 CN201220140323 CN 201220140323 CN 201220140323 U CN201220140323 U CN 201220140323U CN 202757721 U CN202757721 U CN 202757721U
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- magnetic flux
- acquisition instrument
- channel acquisition
- single channel
- cable force
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Abstract
The utility model discloses a magnetic-flux cable force detection device, comprising an upper computer and a single-channel acquisition instrument. The magnetic-flux cable force detection device is characterized in that the single-channel acquisition instrument is connected with a magnetic flux sensor thereon; the upper computer is connected with the single-channel acquisition instrument via a signal line; the magnetic flux sensor and the single-channel acquisition instrument are connected via a signal line; a multi-channel switch box is disposed between the single-channel acquisition instrument and the magnetic flux sensor; and the multi-channel switch box is respectively connected with the single-channel acquisition instrument and the magnetic flux sensor via signal lines. The magnetic flux sensor comprises a primary coil, a secondary coil and a temperature sensor, wherein the secondary coil is disposed at the inner side of the primary coil. The magnetic-flux cable force detection device of the utility model is capable of directly measuring the member information, automatically compensating the temperature and allowing monitoring and measuring of the cable force condition before the upper computer, simultaneously supports multi-channel sensor measurement and remote measurement, and has the advantages of convenient operation, high reliability and high automation level.
Description
Technical field
The utility model belongs to structural safety checkout equipment field, specifically, relates to a kind of magnetic flux cable force detecting device.
Background technology
The variation of Suo Li is to weigh the important symbol whether wire rope assemblies is in normal operational regime.Cable is a kind of inner high order hyperstatic structure, can make the linetype and internal force of cable reach perfect condition by the Suo Li that adjusts drag-line.But, if actual Suo Li has departed from design Suo Li, this depart from not only can make produce unbalance loading (unbalance loading is to cause one of cable major cause of failure) between the cable, also can make Sarasota and girder produce moment of flexure, thereby security incident and economic loss occur.
At present, the following several method of the general employing of the cable force monitoring technology of domestic cable: (1) oil pressure gauge method of reading; (2) determination of pressure sensor method; (3) frequency measurement method.
The oil pressure gauge method of reading is simple, it is the most practical method of control cord power in the construction, its the most suitable wire rope assemblies in work progress to rope force measurement and adjustment, but because some characteristics of tensimeter itself, the easy off normal of pointer is arranged, pointer shake fierceness during high pressure, the reading personal error is large, the load indicating value such as need change at the shortcoming, is not useable for into the dynamic cable force monitoring after building.
The pressure transducer method uses resistance strain gage, optical fiber F-P or fiber grating etc. as the sensor element usually, and its distinct issues have three, first bonding agent problem, and this has just restricted precision, the linearity and the usable range of pressure transducer.It two is that the distortion of cable and the variation of sensitive element have a hysteresis, and this just determines that its dynamic response is poor, is difficult to adapt to dynamic on-line monitoring requirement.It three is that cable is subjected to the alterante stress effect for a long time, and is not at every turn all in elastic range, causes it to use useful life short, and expensive, so result of use is undesirable.
Frequency method adapts to is building structure, also adapts to into the wirerope cable force on-line monitoring of building.But the solution of cable its Free Vibration Equations under tensioning state will be subjected to the multifactor impacts such as sag, gradient and boundary condition of cable.Simultaneously, it also is very difficult utilizing the n rank natural frequency of vibration of spectrogram automatic calculation cable or the difference on the frequency Δ f on adjacent two rank.The result reliability that draws depends on the installation site of vibro-pickup, and whether cable wire the factor such as starting of oscillation, can not realize round-the-clock monitoring.
In sum, oil pressure gauge method of reading and pressure transducer method all can't satisfy On-Line Dynamic Monitoring, and precision is not high, and adaptability is low.Although frequency method can realize dynamic monitoring, but it must carry out in the situation of cable starting of oscillation, and test result is affected by directly the installation site of gauge head, the automatic identification difficult of vibration frequency, therefore also be difficult to satisfy health monitoring to the requirement of wirerope cable force test, and can increase maintenance and the operation costs in construction work later stage.
Summary of the invention
The technical problems to be solved in the utility model is to overcome defects, provide a kind of and realized nondestructive measurement, high precision, error is little, water resistance is good, durable, easy for installation and to can be used for long term monitoring, shelf life long and support single channel to measure and the magnetic flux cable force monitoring device of two kinds of patterns of multi-channel measurement
For addressing the above problem, the technical scheme that the utility model adopts is:
A kind of magnetic flux cable force detecting device comprises host computer, single channel Acquisition Instrument, it is characterized in that:
Be connected with magnetic flux transducer on the described single channel Acquisition Instrument;
Described host computer is connected with the single channel Acquisition Instrument by signal wire;
Described magnetic flux transducer is connected by signal wire with the single channel Acquisition Instrument;
Say further:
Be provided with the multi-channel switch case between described single channel Acquisition Instrument and the magnetic flux transducer, the multi-channel switch case connects respectively single channel Acquisition Instrument and magnetic flux transducer by signal wire.
Further say:
Described magnetic flux transducer comprises primary coil, secondary coil and temperature sensor, and described secondary coil is arranged on the inboard of primary coil.
Owing to adopted technique scheme, compared with prior art, be provided with magnetic flux transducer in the utility model, pass to the single channel Acquisition Instrument new number that magnetic flux transducer will record, the single channel Acquisition Instrument passes to host computer with signal again, and host computer is monitored measurement according to the signal that obtains to the Suo Li situation.When needs are used a plurality of sensor, the multi-channel switch case need to be set between single channel Acquisition Instrument and sensor.The utility model can directly measure component information, simultaneously support multichannel sensor measure, can auto thermal compensation and support remote measurement, can before host computer, monitor measurement to the Suo Li situation, advantage easy and simple to handle, that reliability is high, automaticity is high.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments simultaneously.
Description of drawings
Fig. 1 is the structured flowchart of a kind of embodiment of the utility model;
Fig. 2 is the structured flowchart of the another kind of embodiment of the utility model.
Among the figure: the 1-primary coil; The 2-secondary coil; The 3-detected steel cable; The 4-magnetic flux transducer; The 5-temperature sensor; The 6-signal wire; 7-single channel Acquisition Instrument; The 8-signal wire; The 9-host computer; 10-multi-channel switch case.
Embodiment
Embodiment 1:
As shown in Figure 1, a kind of magnetic flux cable force detecting device comprises host computer 9 and single channel Acquisition Instrument 7.Be connected with a magnetic flux transducer 4 on the single channel Acquisition Instrument 7, and host computer 9 is connected with single channel Acquisition Instrument 7 by signal wire 8, magnetic flux transducer 4 is connected by signal wire 6 with single channel Acquisition Instrument 7.In the present embodiment, the general employing of described signal wire is transmission cable.
In the present embodiment, described magnetic flux transducer 4 comprises primary coil 1, secondary coil 2 and temperature sensor 5, and described secondary coil 2 is arranged on the inboard of primary coil 1.
During use, first magnetic flux transducer 4 is enclosed within on the detected steel cable 3, and fixes, connect with the mains for single channel Acquisition Instrument 7.Single channel Acquisition Instrument 7 provides pulse current for primary coil 1, will induce voltage signal in the secondary coil 2, and at this moment single channel Acquisition Instrument 7 will collect temperature, integral voltage and the power value information that magnetic flux transducer 4 transmits, and carries out a series of processing.
Information is processed by single channel Acquisition Instrument 7 and is directly read by host computer 9 later, and directly shows after converting.Whole data recording process is true, reliable, can preserve as the process data of the best, convenient from now on verification.
Embodiment 2:
As shown in Figure 2, a kind of magnetic flux cable force detecting device comprises host computer 9 and single channel Acquisition Instrument 7.Be connected with a plurality of magnetic flux transducers 4 on the single channel Acquisition Instrument 7, and host computer 9 is connected with single channel Acquisition Instrument 7 by signal wire 8, magnetic flux transducer 4 is connected by signal wire 6 with single channel Acquisition Instrument 7.In the present embodiment, the general employing of described signal wire is transmission cable.
In the present embodiment, described magnetic flux transducer 4 comprises primary coil 1, secondary coil 2 and temperature sensor 5, and described secondary coil 2 is arranged on the inboard of primary coil 1.
In the present embodiment, be provided with multi-channel switch case 10 between described single channel Acquisition Instrument 7 and the magnetic flux transducer 4, multi-channel switch case 10 connects respectively single channel Acquisition Instrument 7 and magnetic flux transducer 4 by signal wire.Like this, a plurality of magnetic flux 4 sensors are connected on the multi-channel switch case 10, and multi-channel switch case 10 is connected on the single channel Acquisition Instrument 7.
During use, respectively magnetic flux transducer 4 is enclosed within on the detected steel cable 3 first, and fixes, connect with the mains for single channel Acquisition Instrument 7 and multi-channel switch case 10.Multi-channel switch case 10 provides pulse current for the primary coil 1 of magnetic flux transducer 4, will induce voltage signal in the secondary coil 2.Single channel Acquisition Instrument 7 is selected certain magnetic flux transducer 4, just selects this magnetic flux transducer 4 by multi-channel switch case 10, and at this moment single channel Acquisition Instrument 7 will collect temperature, integral voltage and the power value information that this magnetic flux transducer 4 transmits.When selected other any one sensors, operation steps is identical.
After single channel Acquisition Instrument 7 collects data, and process, process and directly read by host computer 9 later, and after converting, directly show.Whole data recording process is true, reliable, can preserve as the process data of the best, convenient from now on verification.
The above only is two kinds of preferred implementations of the present utility model, and protection domain of the present utility model also not only is confined to above-described embodiment, and all technical schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should be pointed out that for those skilled in the art in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a magnetic flux cable force detecting device comprises host computer (9), single channel Acquisition Instrument (7), it is characterized in that:
Be connected with magnetic flux transducer (4) on the described single channel Acquisition Instrument (7);
Described host computer (9) is connected with single channel Acquisition Instrument (1) by signal wire (8);
Described magnetic flux transducer (4) is connected by signal wire (6) with single channel Acquisition Instrument (7).
2. magnetic flux cable force detecting device according to claim 1, it is characterized in that: be provided with multi-channel switch case (10) between described single channel Acquisition Instrument (7) and the magnetic flux transducer (4), multi-channel switch case (10) connects respectively single channel Acquisition Instrument (7) and magnetic flux transducer (4) by signal wire.
3. magnetic flux cable force detecting device according to claim 1 and 2, it is characterized in that: described magnetic flux transducer (4) comprises primary coil (1), secondary coil (2) and temperature sensor (5), and described secondary coil (2) is arranged on the inboard of primary coil (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220140323 CN202757721U (en) | 2012-04-06 | 2012-04-06 | Magnetic-flux cable force detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220140323 CN202757721U (en) | 2012-04-06 | 2012-04-06 | Magnetic-flux cable force detection device |
Publications (1)
| Publication Number | Publication Date |
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| CN202757721U true CN202757721U (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220140323 Expired - Lifetime CN202757721U (en) | 2012-04-06 | 2012-04-06 | Magnetic-flux cable force detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202757721U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674349A (en) * | 2013-12-24 | 2014-03-26 | 江西飞尚科技有限公司 | Gauss theorem based open-loop magnetic flux sensor sensing method |
| CN103675721A (en) * | 2013-12-24 | 2014-03-26 | 江西飞尚科技有限公司 | Open-loop magnetic flux sensor |
| CN103698720A (en) * | 2013-12-24 | 2014-04-02 | 江西飞尚科技有限公司 | Magnetic flux detecting method for open-loop magnetic flux sensor |
| CN104698403A (en) * | 2015-03-03 | 2015-06-10 | 江西飞尚科技有限公司 | Intelligent wireless open-loop magnetic-flux acquiring method |
| CN104807585A (en) * | 2015-05-13 | 2015-07-29 | 上海同磊土木工程技术有限公司 | High-precision cable force testing instrument of magnetic permeability cable and test method thereof |
| CN105527047A (en) * | 2015-12-30 | 2016-04-27 | 中交路桥技术有限公司 | Magnetic flux cable force detecting device based on MEMS (Micro Electro Mechanical System) acceleration sensor correction |
| 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 |
| CN109457614A (en) * | 2018-09-30 | 2019-03-12 | 柳州欧维姆结构检测技术有限公司 | Parallel steel stranded wire stayed Cable Construction Suo Li uniformity monitors system and construction method |
| CN110686818A (en) * | 2019-09-19 | 2020-01-14 | 中铁十局集团第一工程有限公司 | Method for rapidly measuring cable force of steel strand stay cable |
| CN111928890A (en) * | 2020-07-14 | 2020-11-13 | 宁波大学 | Method for measuring self-vibration frequency and cable force of inhaul cable in real time |
-
2012
- 2012-04-06 CN CN 201220140323 patent/CN202757721U/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698720B (en) * | 2013-12-24 | 2016-12-07 | 江西飞尚科技有限公司 | A kind of magnetic flux detection method of open-loop magnetic flux sensor |
| CN103675721A (en) * | 2013-12-24 | 2014-03-26 | 江西飞尚科技有限公司 | Open-loop magnetic flux sensor |
| CN103698720A (en) * | 2013-12-24 | 2014-04-02 | 江西飞尚科技有限公司 | Magnetic flux detecting method for open-loop magnetic flux sensor |
| CN103674349A (en) * | 2013-12-24 | 2014-03-26 | 江西飞尚科技有限公司 | Gauss theorem based open-loop magnetic flux sensor sensing method |
| CN103674349B (en) * | 2013-12-24 | 2015-10-28 | 江西飞尚科技有限公司 | A kind of open-loop magnetic flux sensor inducing method based on Gauss theorem |
| CN103675721B (en) * | 2013-12-24 | 2017-01-18 | 江西飞尚科技有限公司 | Open-loop magnetic flux sensor |
| CN104698403A (en) * | 2015-03-03 | 2015-06-10 | 江西飞尚科技有限公司 | Intelligent wireless open-loop magnetic-flux acquiring method |
| CN104807585A (en) * | 2015-05-13 | 2015-07-29 | 上海同磊土木工程技术有限公司 | High-precision cable force testing instrument of magnetic permeability cable and test method thereof |
| CN105527047A (en) * | 2015-12-30 | 2016-04-27 | 中交路桥技术有限公司 | Magnetic flux cable force detecting device based on MEMS (Micro Electro Mechanical System) acceleration sensor correction |
| CN105527047B (en) * | 2015-12-30 | 2019-03-19 | 中交路桥技术有限公司 | One kind being based on the modified magnetic flux cable force detecting device of MEMS acceleration transducer |
| 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 |
| CN109457614A (en) * | 2018-09-30 | 2019-03-12 | 柳州欧维姆结构检测技术有限公司 | Parallel steel stranded wire stayed Cable Construction Suo Li uniformity monitors system and construction method |
| CN110686818A (en) * | 2019-09-19 | 2020-01-14 | 中铁十局集团第一工程有限公司 | Method for rapidly measuring cable force of steel strand stay cable |
| CN110686818B (en) * | 2019-09-19 | 2021-11-12 | 济南北环铁路有限公司 | Method for rapidly measuring cable force of steel strand stay cable |
| CN111928890A (en) * | 2020-07-14 | 2020-11-13 | 宁波大学 | Method for measuring self-vibration frequency and cable force of inhaul cable in real time |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |
|
| CX01 | Expiry of patent term |