CN103528494A - Device for measuring creep deformation of eddy current - Google Patents
Device for measuring creep deformation of eddy current Download PDFInfo
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- CN103528494A CN103528494A CN201310486432.3A CN201310486432A CN103528494A CN 103528494 A CN103528494 A CN 103528494A CN 201310486432 A CN201310486432 A CN 201310486432A CN 103528494 A CN103528494 A CN 103528494A
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Abstract
The invention discloses a device for measuring creep deformation of eddy current. The device comprises an eddy current displacement sensor device and a bracket, wherein the eddy current sensor device comprises a data acquisition display, a sensor extension cable, a sensor probe and a sensor probe fixing screw; the bracket comprises a sensor probe bracket and a target board bracket; two longitudinal and transverse reinforcing plates are arranged in each bracket; two bolt holes for fixing the brackets are formed; a sensor probe mounting hole is formed in the upper end of a sensor bracket board; the sensor probe bracket and the target board bracket are provided with a sensor bracket fixing bolt and a target bracket fixing bolt; each bolt is provided with a bolt washer. The device can be used for testing data accurately, efficiently and conveniently, and is convenient and rapid for mounting.
Description
Technical field
The present invention relates to electronic inductance and building materials field, especially refer to a kind of current vortex time deformation measuring device.
Background technology
Eddy current displacement sensor is wide with its good reliability, measurement range, measure highly sensitive, measuring accuracy advantages of higher, be widely used in the industries such as electric power, electronics, oil, chemical industry, metallurgy, building, building materials, the monitoring of the displacement of the large rotating machinery bearings such as steam turbine, compressor, concrete-containing building material contraction etc. is played an important role.
Concrete is as one of main building materials of buildings, life-span of its performance and buildings and use safety to have close relationship.Pressurized is crept as one of the chronicity of concrete material and important indicator of durability evaluation, and the design of buildings and safe handling assessment are had to great impact; Its method of testing accurately whether, by the serious safety in utilization that affects buildings; The convenience of its means of testing also will affect design, the construction progress of buildings.
Prior art, in test method GB/T 50082-2009 " Standard for test methods of longterm performance and durability of ordinary concrete standard ", measure device with the matching used deflection of spring compression Creep Apparatus, conventionally use the built-in type deformation measuring devices such as differential type strainometer or vibrating wire strain gauge, or the fitted outside strain gauge means of use support bonding or adhesion type contact method tens(i)ometer measurement mechanism etc., they are defect: built-in type proving installation cost of use is expensive, and the serviceable life of strainometer is shorter; Location accuracy is poor for the bonded or adhesion type deformation measuring device of fitted outside, and the fastness behind location is not good etc.
In view of the concrete creep deflection of prior art, measure many defects of device, the inventor develops a kind of concrete creep deflection that overcomes above-mentioned defect and measures device, and this case produces thus.
Summary of the invention
The object of the present invention is to provide a kind of test data accurate, efficient, convenient, easy for installation, fast, time deformation measuring device firmly.
For achieving the above object, the present invention is achieved by the following technical solutions:
A time deformation measuring device, this measurement mechanism comprises current vortex sensing device and is connected with this current vortex sensing device and realizes the support that terminal detects, wherein:
Current vortex sensing device, it comprises data acquisition display apparatus and many extension sensor measuring heads that connect successively, every extension sensor measuring head is all connected with data acquisition display apparatus realizes determinand terminal time deformation test, and described every extension sensor measuring head comprises sensor extension cable and the sensor probe that forms sensor measuring passage;
Support, it comprises a plurality of sensor probe support groups and the target board mount group that is arranged at determinand both sides, and each sensor probe support group comprises two sensor probe supports that are symmetricly set in determinand both sides, each sensor probe is all lock onto sensor probe support outside by sensor probe fixed screw and is formed current vortex end-probing structure, and each target board mount group comprises two target board mounts that are symmetricly set in determinand both sides.
Further, described each sensor probe support and target board mount are L shaped shape support plate, each sensor probe support comprise with the sensor stand base plate of determinand parallel sided and with the vertically disposed sensor stand plate of this sensor stand base plate; Each target board mount comprises target board mount base plate and the vertically disposed target plate of this target board mount base plate with determinand parallel sided.
Further, the plane of described target plate and the axis of each sensor probe are perpendicular.
Further, described sensor stand base plate is provided with twice sensor stand vertical, horizontal stiffening plate and offers two support bracket fastened sensor stand bolts hole, and sensor stand plate has been offered sensor probe mounting hole; Described each sensor stand matches to merge to realize by the sensor stand set bolt matching and is locked, and on this sensor stand set bolt, is provided with sensor stand bolt washer;
Preferred: described two sensor stand bolts hole are the symmetrical carriage center line both sides that are distributed in all, and sensor probe mounting hole site is on sensor stand plate center line.
Further, the longitudinal stiffening plate of described twice sensor stand be arranged in parallel and is fixed on sensor stand plate outer side face, and the horizontal stiffening plate of described twice sensor stand is individually fixed in the outside of the longitudinal stiffening plate of twice sensor stand, forms sensor probe support and strengthen structure.
Further, described target support base plate is provided with twice target support vertical, horizontal stiffening plate and offers two support bracket fastened target support bracket bolt holes, described each target support coordinates realization to be locked by the target bracket fixing bolt matching, and on this target bracket fixing bolt, is provided with target support bracket bolt packing ring;
Preferred: two target support bracket bolt holes are the symmetrical target board mount center line both sides that are distributed in all.
Further, the longitudinal stiffening plate of described twice target support be arranged in parallel and is fixed on target support base plate lateral surface, and the horizontal stiffening plate of described twice target support is individually fixed in the outside of the longitudinal stiffening plate of twice target support, forms target board mount and strengthen structure.
Further, described extension sensor measuring head quantity is 2-6 bar, and then the quantity that obtains sensor probe is 2-6, and the quantity that can simultaneously test test specimen is 1-3.
Further, described target plate is the soft magnetically permeable materials such as aluminium, aluminium alloy, target plate is towards the smooth surface of probe, and the height of target plate should be higher than sensor stand plate, and target plate, sensor stand plate are respectively perpendicular to target support base plate, sensor stand base plate.
Adopt after such scheme, compared with prior art, it has the following advantages:
One, adopt after this device of pre-embedded bolt anchoring, can guarantee preferably accuracy, the reliability of measurement and positioning;
Two, this device can be measured 1-3 time deformation test specimen simultaneously, and method of testing flexibly, efficiently;
Three, this device adopts current vortex sensing device to survey, automatic data acquisition, and measuring accuracy is high, and test process is convenient.
Accompanying drawing explanation
Fig. 1 is front elevation of the present invention;
Fig. 2 is side view of the present invention;
Label declaration:
Current vortex displacement sensing device 1
Data acquisition display apparatus 11 sensor extension cables 12
Support 2
The longitudinal stiffening plate 212 of sensor stand plate 211 sensor stand
The horizontal stiffening plate 213 sensor stand bolts hole 214 of sensor stand
Sensor probe mounting hole 215 sensor stand base plates 216
The longitudinal stiffening plate 222 of target plate 221 target support
The horizontal stiffening plate of target support 223 target support bracket bolt holes 224
Target support base plate 225
Sensor stand set bolt 31 sensor stand bolt washers 311
Target bracket fixing bolt 32 target support bracket bolt packing rings 321
Formation of concrete test specimen 4 to be detected.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
Embodiment: refer to shown in Fig. 1 and Fig. 2, a kind of current vortex time deformation measuring device, this measurement mechanism comprises current vortex sensing device 1 and is connected with this current vortex sensing device 1 and realizes the support that terminal detects
Refer to shown in Fig. 1 and Fig. 2, current vortex sensing device 1, it comprises data acquisition display apparatus 11 and many extension sensor measuring heads that connect successively, every extension sensor measuring head is all connected with data acquisition display apparatus 11 realizes formation of concrete test specimen 4 terminal time deformation tests to be detected, described every extension sensor measuring head comprises sensor extension cable 12 and the sensor probe 13 that forms sensor measuring passage, and the interior configuration data of described data acquisition display apparatus 11 gathers display system.
Refer to shown in Fig. 1 and Fig. 2, support 2, it comprises a plurality of sensor probe support groups and the target board mount group that is arranged at formation of concrete test specimen to be detected 4 both sides, and each sensor probe support group comprises two sensor probe supports 21 that are symmetricly set in formation of concrete test specimen to be detected 4 both sides, described each sensor probe 13 all lock onto sensor probe support 21 outsides by sensor probe fixed screw 14 by sensor probe 13 and forms current vortex end-probing structure, and each target board mount group comprises two target board mounts 22 that are symmetricly set in formation of concrete test specimen to be detected 4 both sides.
Refer to shown in Fig. 1 and Fig. 2, each sensor probe support 21 and target board mount 22 are L shaped shape support plate, each sensor probe support 21 comprise with the sensor stand base plate 216 of formation of concrete test specimen 4 parallel sided to be detected and with the vertically disposed sensor stand plate 211 of this sensor stand base plate 216; Each target board mount 22 comprises target board mount base plate 225 and the vertically disposed target plate 221 of this target board mount base plate 225 with formation of concrete test specimen 4 parallel sided to be detected.The axis of the plane of described target plate 221 and each sensor probe 13 is perpendicular.
Refer to shown in Fig. 1 and Fig. 2, sensor stand base plate 216 is provided with twice sensor stand vertical, horizontal stiffening plate 212,213 and offers two support bracket fastened sensor stand bolts hole 214, and sensor stand plate 211 has been offered sensor probe mounting hole 215; Described each sensor stand 21 is locked by the sensor stand set bolt 31 matching, and on this sensor stand set bolt 31, is provided with sensor stand bolt washer 311; Preferred: described two sensor stand bolts hole 214 are the symmetrical sensor probe support 21 center line both sides that are distributed in all, and sensor probe 13 mounting hole site are on sensor stand plate 211 center lines.The longitudinal stiffening plate 212 of twice sensor stand be arranged in parallel and is fixed on sensor stand base plate 216 lateral surfaces, and the horizontal stiffening plate 213 of described twice sensor stand is individually fixed in the outside of the longitudinal stiffening plate 212 of twice sensor stand, forms sensor probe support and strengthen structure.
Refer to shown in Fig. 1 and Fig. 2, target support base plate 225 is provided with twice target support vertical, horizontal stiffening plate 222,223 and offers two support bracket fastened target support bracket bolt holes 224, described each target support 22 is locked by the target bracket fixing bolt 32 matching, and on this target bracket fixing bolt 32, be provided with target support bracket bolt packing ring 321, the object of this bolt washer 321 is to make support base plate isolated with test test specimen side, so that the contraction situation of length sample between test probe support fixed screw and target support fixed screw; Preferred: two target support bracket bolt holes 224 are the symmetrical target board mount 22 center line both sides that are distributed in all, the longitudinal stiffening plate 222 of described twice target support be arranged in parallel and is fixed on target support base plate 225 lateral surfaces, and the horizontal stiffening plate 223 of described twice target support is individually fixed in the outside of the longitudinal stiffening plate 222 of twice target support, forms target board mount and strengthen structure.
Refer to shown in Fig. 1 and Fig. 2, extension sensor measuring head quantity is 2-6 bar, and then the quantity that obtains sensor probe 13 is 2-6, and the quantity that can simultaneously test test specimen is 1-3.
Refer to shown in Fig. 1 and Fig. 2, target plate 221 is the soft magnetically permeable materials such as aluminium, aluminium alloy, target plate 221 is towards the smooth surface of probe, the height of target plate should be higher than sensor stand plate 211, and target plate 221, sensor stand plate 211 are respectively perpendicular to target board mount base plate 225, sensor stand base plate 216.
The present invention in use, as shown in Figure 1 and Figure 2, by the requirement moulding of GB/T 50082-2009 " Standard for test methods of longterm performance and durability of ordinary concrete standard " concrete sample 4 of creeping.Before formation of concrete test specimen, in die trial two sides, (side is all being held the hole of laying sensor stand set bolt 31 and target bracket fixing bolt 32 successfully in advance by the position of standard-required, die trial is supporting die trial) place eight bracket fixing bolts 31,32(packing ring 311,321 is not temporarily laid), after bracket fixing bolt places, formation of concrete test specimen 4, when formation of concrete test specimen 4, askew bracket fixing bolt 31,32 does not shake or shakes.
Refer to shown in Fig. 1 and Fig. 2, after concrete sample 4 moulding complete by standard-required maintenance, form removal, while removing die trial, do not touch off or touch askew bracket fixing bolt 31,32, after form removal, continue maintenance to requiring the length of time, take out concrete sample 4, erect, get 1 cover deflection of the present invention and measure device, on the support bolt 31,32 of each side of concrete sample 4, place corresponding support bracket bolt packing ring, on respective anchors fixing bolt, install again sensor probe support 21, target board mount 22, first-class nut, the good support of anchoring.After anchoring, the plane of sensor stand base plate 216, target support base plate 225 parallels with concrete side, and at grade, the center line of sensor probe support and target board mount and concrete side center line coincide, to guarantee sensor stand plate 211 planes and target plate 221 plane parallel.Install sensor probe 13(in the sensor probe mounting hole 215 of sensor stand plate 211 before, sensor probe 13 all connects with sensor extension cable 12 and data acquisition display apparatus 11), tighten sensor probe fixed screw 14, fixation of sensor probe 13, the axis of mounted sensor probe 13 should be perpendicular with the plane of target plate 221.
After installing this device, log-on data acquisition system power supply, can, by the requirement of GB/T 50082-2009 " Standard for test methods of longterm performance and durability of ordinary concrete standard ", be used spring compression Creep Apparatus to carry out experimental test.
Above record, only, for utilizing the embodiment of this origination techniques content, modification, variation that any those skilled in the art use this creation to do, all belong to the scope of the claims that this creation is advocated, and be not limited to those disclosed embodiments.
Claims (9)
1. a current vortex time deformation measuring device, is characterized in that: this measurement mechanism comprises current vortex sensing device and be connected with this current vortex sensing device and realize the support that terminal detects, wherein:
Current vortex sensing device, it comprises data acquisition display apparatus and many extension sensor measuring heads that connect successively, every extension sensor measuring head is all connected with data acquisition display apparatus realizes determinand terminal time deformation test, and described every extension sensor measuring head comprises sensor extension cable and the sensor probe that forms sensor measuring passage;
Support, it comprises a plurality of sensor probe support groups and the target board mount group that is arranged at determinand both sides, and each sensor probe support group comprises two sensor probe supports that are symmetricly set in determinand both sides, each sensor probe is all lock onto sensor probe support outside by sensor probe fixed screw and is formed current vortex end-probing structure, and each target board mount group comprises two target board mounts that are symmetricly set in determinand two sides.
2. a kind of current vortex time deformation measuring device according to claim 1, it is characterized in that: described each sensor probe support and target board mount are L shaped shape support plate, each sensor probe support comprise with the sensor stand base plate of determinand parallel sided and with the vertically disposed sensor stand plate of this sensor stand base plate; Each target board mount comprises target board mount base plate and the vertically disposed target plate of this target board mount base plate with determinand parallel sided.
3. a kind of current vortex time deformation measuring device according to claim 2, is characterized in that: the plane of described target plate and the axis of each sensor probe are perpendicular.
4. a kind of current vortex time deformation measuring device according to claim 2, it is characterized in that: described sensor stand base plate is provided with twice sensor stand vertical, horizontal stiffening plate and offers two support bracket fastened sensor stand bolts hole, and sensor stand plate has been offered sensor probe mounting hole; Described each sensor stand matches to realize by the sensor stand set bolt matching and is locked, and on this sensor stand set bolt, is provided with sensor stand bolt washer;
Preferred: described two sensor stand bolts hole are the symmetrical sensor probe carriage center line both sides that are distributed in all, and sensor probe mounting hole site is on sensor stand plate center line.
5. a kind of current vortex time deformation measuring device according to claim 4, it is characterized in that: the longitudinal stiffening plate of described twice sensor stand be arranged in parallel and is fixed on sensor stand plate outer side face, and the horizontal stiffening plate of described twice sensor stand is individually fixed in the outside of the longitudinal stiffening plate of twice sensor stand, forms sensor probe support and strengthen structure.
6. a kind of current vortex time deformation measuring device according to claim 2, it is characterized in that: described target support base plate is provided with twice target support vertical, horizontal stiffening plate and offers two support bracket fastened target support bracket bolt holes, described each target support coordinates realization to be locked by the target bracket fixing bolt matching, and on this target bracket fixing bolt, is provided with target support bracket bolt packing ring;
Preferred: two target support bracket bolt holes are the symmetrical target board mount center line both sides that are distributed in all.
7. a kind of current vortex time deformation measuring device according to claim 6, it is characterized in that: the longitudinal stiffening plate of described twice target support be arranged in parallel and is fixed on target support base plate lateral surface, and the horizontal stiffening plate of described twice target support is individually fixed in the outside of the longitudinal stiffening plate of twice target support, forms target board mount and strengthen structure.
8. a kind of current vortex time deformation measuring device according to claim 1, is characterized in that: described extension sensor measuring head quantity is 2-6 bar, and then the quantity that obtains sensor probe is 2-6, and the quantity that can simultaneously test test specimen is 1-3.
9. a kind of current vortex time deformation measuring device according to claim 2, it is characterized in that: described target plate is aluminium, aluminium alloy soft magnetically permeable material, target plate is towards the smooth surface of probe, the height of target plate is higher than sensor stand plate, and target plate, sensor stand plate are respectively perpendicular to target support base plate, sensor stand base plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310486432.3A CN103528494B (en) | 2013-10-17 | 2013-10-17 | A kind of current vortex time deformation measuring device |
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| CN201310486432.3A CN103528494B (en) | 2013-10-17 | 2013-10-17 | A kind of current vortex time deformation measuring device |
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| CN103528494A true CN103528494A (en) | 2014-01-22 |
| CN103528494B CN103528494B (en) | 2016-10-12 |
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Cited By (5)
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| CN103900461A (en) * | 2014-02-20 | 2014-07-02 | 河海大学 | Device and method for detecting gate deforming |
| CN105004257A (en) * | 2015-05-21 | 2015-10-28 | 浙江大学 | Eddy current displacement sensor with display function |
| CN106716055A (en) * | 2014-04-23 | 2017-05-24 | 哈利伯顿能源服务公司 | Measuring hookload |
| CN110440128A (en) * | 2019-07-30 | 2019-11-12 | 核工业第八研究所 | A kind of internal diameter shrinkage dynamic monitoring method and device winding metal liner |
| CN111272061A (en) * | 2020-03-16 | 2020-06-12 | 中南大学 | Nondestructive testing device and method for box-shaped transformer eddy current of tin foil paper in carton |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103900461A (en) * | 2014-02-20 | 2014-07-02 | 河海大学 | Device and method for detecting gate deforming |
| CN106716055A (en) * | 2014-04-23 | 2017-05-24 | 哈利伯顿能源服务公司 | Measuring hookload |
| CN105004257A (en) * | 2015-05-21 | 2015-10-28 | 浙江大学 | Eddy current displacement sensor with display function |
| CN110440128A (en) * | 2019-07-30 | 2019-11-12 | 核工业第八研究所 | A kind of internal diameter shrinkage dynamic monitoring method and device winding metal liner |
| CN110440128B (en) * | 2019-07-30 | 2021-04-27 | 核工业第八研究所 | Dynamic monitoring method and device for inner diameter shrinkage of wound metal liner |
| CN111272061A (en) * | 2020-03-16 | 2020-06-12 | 中南大学 | Nondestructive testing device and method for box-shaped transformer eddy current of tin foil paper in carton |
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| CN103528494B (en) | 2016-10-12 |
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Effective date of registration: 20221202 Address after: 362200 No. 4 Kaiyuan Road, Jingbian Village, Cizao Town, Jinjiang City, Quanzhou City, Fujian Province Patentee after: Quanzhou Chuanglu Machinery Industry and Trade Co.,Ltd. Address before: No. 185 Yinjiang Road, Jimei District, Xiamen City, Fujian Province, 361000 Patentee before: JIMEI University |