CN204269262U - Multidirectional concrete dynamic stress monitoring sensor - Google Patents
Multidirectional concrete dynamic stress monitoring sensor Download PDFInfo
- Publication number
- CN204269262U CN204269262U CN201420720436.3U CN201420720436U CN204269262U CN 204269262 U CN204269262 U CN 204269262U CN 201420720436 U CN201420720436 U CN 201420720436U CN 204269262 U CN204269262 U CN 204269262U
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- CN
- China
- Prior art keywords
- vane
- nappe
- hole
- supporter
- stress monitoring
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Abstract
A kind of multidirectional concrete dynamic stress monitoring sensor, is made up of supporter, vane and nappe; Supporter is the solid spherical structures of concrete material; Nappe is the hollow ball shape structure of concrete material, and its inner chamber is spherical; Vane is hemispheric sheet-like structure, and two pieces of vanes are spliced to form hollow sphere structure, and its chamber is formed fills chamber; Hollow sphere structure is arranged in nappe, and supporter is arranged at fills in chamber; The edge of vane is provided with breach, and when two pieces of vanes are stitched together, breach surrounds a through hole, and nappe is provided with cable-through hole; Vane inside and outside wall is respectively connected with an output lead; Output lead is drawn by through hole and cable-through hole; Vane adopts piezoceramic material.Advantageous Effects of the present utility model is: can carry out omnidirectional's perception to the stress situation in monitored area, thus get more stress data with the sensor of lesser amt, improves the comprehensive and accuracy of stress monitoring.
Description
Technical field
The utility model relates to a kind of concrete body internal stress detection technique, particularly relates to a kind of multidirectional concrete dynamic stress monitoring sensor.
Background technology
The interior state of concrete body under outside load action and structure stability closely bound up, therefore the internal stress of concrete body obtains significant for structural stability analysis, in prior art, when carrying out stress test to concrete component, the general mode embedding piezoceramic transducer that adopts obtains component internal stress, Problems existing is: the detecting means of existing piezoceramic transducer is generally flat sheet-like structure, only can carry out perception to the stress state on single direction, but, under outside load action, there is polydirectional feature in concrete component internal stress, the stress data got by existing piezoceramic transducer, obviously the actual stress situation accurately reflecting component inside is difficult to, if and a large amount of piezoceramic transducers is set in concrete component, the integrality of concrete component can be destroyed again largely, the true stressing conditions of concrete component cannot be gone out by accurate response.
Utility model content
For the problem in background technology, the utility model proposes a kind of multidirectional concrete dynamic stress monitoring sensor, its structure is: described multidirectional concrete dynamic stress monitoring sensor is made up of supporter, two pieces of vanes and nappe; Described supporter is the solid spherical structures of concrete material; Described nappe is the hollow ball shape structure of concrete material, and nappe inner chamber is also spherical; Described vane is hemispheric sheet-like structure, and two pieces of vanes are stitched together formation one hollow sphere structure, and the inner chamber of described hollow sphere structure is formed fills chamber; Described hollow sphere structure is arranged in the inner chamber of nappe, and described supporter is arranged at fills in chamber, supporter, vane and nappe three close contact; The edge of described vane is provided with breach, and when two pieces of vanes are stitched together, two breach surround a through hole, and described nappe is provided with the cable-through hole corresponding with through hole; The inner and outer wall of vane is respectively connected with an output lead; Output lead is outwards drawn by through hole and cable-through hole; Described vane adopts piezoceramic material to make.
Principle of the present utility model is: the structure be spliced by two pieces of vanes, because its shape is spherical in shape, therefore omnidirectional's perception can be carried out to the stress in all directions in monitored area, thus make each monitored area can get more stress data, improve the comprehensive and accuracy of stress monitoring; Wherein, the effect of supporter has two, one, based on the need of work of piezoceramic material, on vane, the opposite side relative to external stress active side needs to arrange corresponding structure to be carried out pressing sensing sheet together with external stress thus forms piezoelectricity to export, and they are two years old, supporter is close on the inwall of vane in the mode of Full connected, can avoid vane because local stress is excessive fracture damage; In addition; nappe is mainly for the protection of sensor: with supporter similarly; the inwall of nappe also contacts with vane intimate in the mode of Full connected; external stress needs just can be delivered on vane by nappe; at transmittance process; nappe has certain reduction effect for external stress, thus avoids larger stress to be applied directly on vane.
Electric general knowledge based on routine is known, and in order to ensure that the electricity that sensor is good exports, the utility model also proposes following improvement project on the basis of aforementioned schemes: described vane surface coverage has insulation glue-line.
Preferably, in output lead covers by described insulation glue-line.
In order to improve sensor stability, the utility model also proposed following preferred version: the gap position on the junction of described output lead and vane and vane is contiguous to be arranged.After junction and breach vicinity are arranged, effectively can shorten the length of output lead, improve sensor stability.
Advantageous Effects of the present utility model is: can carry out omnidirectional's perception to the stress situation in monitored area, thus get more stress data with the sensor of lesser amt, improves the comprehensive and accuracy of stress monitoring.
Accompanying drawing explanation
Fig. 1, structure section schematic diagram of the present utility model;
In figure, each title corresponding to mark is respectively: supporter 1, output lead 1-1, vane 2, insulation glue-line 2-1, nappe 3, through hole 4.
Embodiment
A kind of multidirectional concrete dynamic stress monitoring sensor, its structure is: described multidirectional concrete dynamic stress monitoring sensor is made up of supporter 1, two pieces of vanes 2 and nappe 3; Described supporter 1 is the solid spherical structures of concrete material; Described nappe 3 is the hollow ball shape structure of concrete material, and nappe 3 inner chamber is also spherical; Described vane 1 is hemispheric sheet-like structure, and two pieces of vanes 1 are stitched together formation one hollow sphere structure, and the inner chamber of described hollow sphere structure is formed fills chamber; Described hollow sphere structure is arranged in the inner chamber of nappe 3, and described supporter 1 is arranged at fills in chamber, supporter 1, vane 2 and nappe 3 three close contact; The edge of described vane 1 is provided with breach, and when two pieces of vanes 1 are stitched together, two breach surround a through hole 4, and described nappe 3 is provided with the cable-through hole corresponding with through hole 4; The inner and outer wall of vane 1 is respectively connected with an output lead 1-1; Output lead 1-1 is outwards drawn by through hole 4 and cable-through hole; Described vane 2 adopts piezoceramic material to make.
Further, described vane 2 surface coverage has insulation glue-line 2-1.
Further, in output lead 1-1 covers by described insulation glue-line 2-1.
Further, the gap position on the junction of described output lead 1-1 and vane 1 and vane 1 is contiguous to be arranged.
Implement for the ease of those skilled in the art, the invention also discloses the concrete method for making of sensor as aforementioned:
1) output lead 1-1 and vane 2 are welded and fixed;
2) at vane 2 surface smear insulation glue-line 2-1;
3) vane 2 is arranged on supporter 1 surface;
4) at vane 2 surface coating concrete, then concrete surface is repaiied and scrape as spherical, after concrete is dry and hard, namely forms nappe 3.
During concrete use, multidirectional concrete dynamic stress monitoring sensor is directly cast in the inside of concrete component.
Claims (4)
1. a multidirectional concrete dynamic stress monitoring sensor, is characterized in that: described multidirectional concrete dynamic stress monitoring sensor is made up of supporter (1), two pieces of vanes (2) and nappe (3); The solid spherical structures that described supporter (1) is concrete material; The hollow ball shape structure that described nappe (3) is concrete material, nappe (3) inner chamber is also spherical; Described vane (1) is hemispheric sheet-like structure, and two pieces of vanes (1) are stitched together formation one hollow sphere structure, and the inner chamber of described hollow sphere structure is formed fills chamber; Described hollow sphere structure is arranged in the inner chamber of nappe (3), and described supporter (1) is arranged at fills in chamber, supporter (1), vane (2) and nappe (3) three's close contact; The edge of described vane (1) is provided with breach, and when two pieces of vanes (1) are stitched together, two breach surround a through hole (4), and described nappe (3) is provided with the cable-through hole corresponding with through hole (4); The inner and outer wall of vane (1) is respectively connected with an output lead (1-1); Output lead (1-1) is outwards drawn by through hole (4) and cable-through hole; Described vane (2) adopts piezoceramic material to make.
2. multidirectional concrete dynamic stress monitoring sensor according to claim 1, is characterized in that: described vane (2) surface coverage has insulation glue-line (2-1).
3. multidirectional concrete dynamic stress monitoring sensor according to claim 2, is characterized in that: in output lead (1-1) covers by described insulation glue-line (2-1).
4. multidirectional concrete dynamic stress monitoring sensor according to claim 1, is characterized in that: the gap position on the junction of described output lead (1-1) and vane (1) and vane (1) is contiguous to be arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420720436.3U CN204269262U (en) | 2014-11-27 | 2014-11-27 | Multidirectional concrete dynamic stress monitoring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420720436.3U CN204269262U (en) | 2014-11-27 | 2014-11-27 | Multidirectional concrete dynamic stress monitoring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204269262U true CN204269262U (en) | 2015-04-15 |
Family
ID=52804123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420720436.3U Expired - Fee Related CN204269262U (en) | 2014-11-27 | 2014-11-27 | Multidirectional concrete dynamic stress monitoring sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204269262U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352635A (en) * | 2015-12-29 | 2016-02-24 | 中国矿业大学 | Spatial pre-embedded type three-dimensional stress monitoring system and method for underground coal and rock mass |
| CN111366290A (en) * | 2020-03-27 | 2020-07-03 | 中国工程物理研究院电子工程研究所 | Hemispherical universal sensitive piezoelectric impact sensor |
-
2014
- 2014-11-27 CN CN201420720436.3U patent/CN204269262U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352635A (en) * | 2015-12-29 | 2016-02-24 | 中国矿业大学 | Spatial pre-embedded type three-dimensional stress monitoring system and method for underground coal and rock mass |
| CN111366290A (en) * | 2020-03-27 | 2020-07-03 | 中国工程物理研究院电子工程研究所 | Hemispherical universal sensitive piezoelectric impact sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20151127 |