CN105203640A - Embedded type acoustic emission sensing system - Google Patents
Embedded type acoustic emission sensing system Download PDFInfo
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- CN105203640A CN105203640A CN201510598839.4A CN201510598839A CN105203640A CN 105203640 A CN105203640 A CN 105203640A CN 201510598839 A CN201510598839 A CN 201510598839A CN 105203640 A CN105203640 A CN 105203640A
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Abstract
The invention discloses an embedded type acoustic emission sensing system. A sensor is arranged in a cylindrical safe box, a top plate and the circumferential sidewall of the safe box are formed by casting CFRP materials, a threaded hole is formed in the top plate, a CFRP length adjusting rod is arranged in the threaded hole in a matched mode, a fixing cap is arranged at the bottom end of the length adjusting rod, a magnetic bottom ring is fixed to the bottom of the safe box, the inner diameter of the magnetic bottom ring equals to the result of the outer diameter of the sensor plus 0.5mm, the magnetic bottom ring is provided with a rubber anti-vibration backing ring, the inner diameter of the anti-vibration backing ring equals to the result of the outer diameter of the sensor subcontracted 0.1mm, the sensor is installed in the anti-vibration backing ring in an inserted mode, the top face of the sensor is in contact with the bottom face of the fixing cap, and the bottom face of the sensor is flush with the bottom face of the magnetic bottom ring. According to the embedded type acoustic emission sensing system, the original monitoring function of the sensor can be guaranteed, the fixation capability of the sensor can be enhanced, and meanwhile the anticorrosion and anti-shaking functions are achieved. The system can be applied to not only an underground structure such as an underground pile foundation but also motoring of an upper structure.
Description
Technical field
The present invention relates to acoustic emission health monitoring systems in a kind of civil engineering work, particularly relate to a kind of transmitting sensor-based system.
Background technology
Acoustic emission is in numerous health monitoring technique, can carry out dynamic monitoring to fault of construction, crackle, positions and judge that the development trend damaged is the most direct effective method to damage.But be subject to the restriction that calibrate AE sensor is arranged, acoustic current lift-off technology is mainly used in superstructure, and salty in the substructures such as pile foundation have application.Its calibrate AE sensor when superstructure is applied is adsorbed by support or is bonded at by the surface of geodesic structure, and sensor is directly placed in normal air ambient.But, underground structure is waited all to be arranged in soil due to it for buried, if calibrate AE sensor to be fixed on by support the surface of pile body as superstructure, then sensor can collide with the soil body and damage or cannot use in piling process.
Calibrate AE sensor is placed in safety box by novel flush type sensor-based system, thus both can guarantee the monitoring function of original sensor, can increase again the crystallized ability of its sensor, also has anticorrosion and antihunt function simultaneously.Novel flush type sensor-based system not only can be applied to underground pile basis and wait in underground structure, also can be applied in the monitoring of superstructure.
Summary of the invention
Can be generalized in the health monitoring of underground structure to make acoustic emission; the present invention devises a kind of flush type voice sending sensor system; original sensor is placed in safety protecting box by this design; thus well solve original acoustic emission due to sensor and the soil body interact, the corrosion of concussion and soil body moist environment and the problem of the monitoring of underground structure can not be used for; both may be used for the monitoring of original superstructure, overcome again the deficiency that traditional fixed support is not suitable for for underground structure.This novel flush type voice sending sensor system can imbedibility, good, the antishock feature of corrosion resistivity, is suitable for acoustic emission the applying of health monitoring in various civil structure is as superstructure and substructure.
In order to solve the problems of the technologies described above, a kind of flush type voice sending sensor system that the present invention proposes, comprise sensor, described sensor is placed in the safety box of a cylindrical shape, the top board of described safety box and circumferential side wall are cast by CFRP material and are formed, described circumferential side wall is provided with sensor wiring hole, described top board is provided with threaded hole, a length adjustment bar is combined with in described threaded hole, described length adjustment bar is CFRP muscle, the bottom of described length adjustment bar is provided with locking cap, the bottom surface of described locking cap is provided with the groove to fovea superior, the internal diameter of described groove is greater than the external diameter of sensor, the bottom of described safety box is provided with a magnetic base ring, the internal diameter of described magnetic base ring equals the external diameter+0.5mm of described sensor, the top of described magnetic base ring is provided with a shockproof gasket ring, described shockproof gasket ring is quality of rubber materials, the internal diameter of described shockproof gasket ring equals the external diameter-0.1mm of described sensor, described sensor is closely inlaid in described shockproof gasket ring, the end face of described sensor contacts with the groove surface of locking cap bottom surface, the bottom surface of described sensor is concordant with the bottom surface of magnetic base ring.
Compared with prior art, the invention has the beneficial effects as follows:
Flush type sensor-based system of the present invention is placed in safety box by calibrate AE sensor, thus both can guarantee the monitoring function of original sensor, can increase again the crystallized ability of its sensor, also has anticorrosion and antihunt function simultaneously.Novel flush type sensor-based system not only can be applied to underground pile basis and wait in underground structure, also can be applied in the monitoring of superstructure.
Accompanying drawing explanation
Fig. 1 is flush type voice sending sensor system architecture schematic diagram of the present invention;
Fig. 2 is the upward view of the base ring of magnetic shown in Fig. 1 and support.
In figure: 10-safety box, 11-circumferential side wall, 12-magnetic base ring, 13-top board, 2-sensor, the shockproof gasket ring of 3-, 4-length adjustment bar; 5-locking cap; 61-threaded hole, 62-thread segment, 7-sensor wiring hole,
Embodiment
Be described in further detail technical solution of the present invention below in conjunction with the drawings and specific embodiments, described specific embodiment only explains the present invention, not in order to limit the present invention.
As depicted in figs. 1 and 2, a kind of flush type voice sending sensor system that the present invention proposes, comprise sensor 2, described sensor 2 is placed in the safety box 10 of a cylindrical shape, the top board 13 of described safety box 10 and circumferential side wall 11 are cast by CFRP material and are formed, described circumferential side wall 11 is provided with sensor wiring hole 7, described top board 13 is provided with threaded hole 61, a length adjustment bar 4 is combined with in described threaded hole 61, namely described length adjustment bar 4 is provided with the thread segment 62 coordinated with threaded hole 61, described length adjustment bar 4 is CFRP muscle, the bottom of described length adjustment bar 4 is provided with locking cap 5, the bottom surface of described locking cap 5 is provided with the groove to fovea superior, the internal diameter of described groove is greater than the external diameter of sensor, the bottom of described safety box 10 is fixed with a magnetic base ring 12, the internal diameter of described magnetic base ring 12 equals the external diameter+0.5mm of described sensor, the top of described magnetic base ring 12 is provided with a shockproof gasket ring 3, described shockproof gasket ring 3 is quality of rubber materials, the internal diameter of described shockproof gasket ring 3 equals the external diameter-0.1mm of described sensor, be used for fixing and protect sensor 2, described sensor 2 is closely inlaid in described shockproof gasket ring 3, the end face of described sensor 2 contacts with the groove surface of locking cap 5 bottom surface, the bottom surface of described sensor 2 is concordant with the bottom surface of magnetic base ring 12.
In use, if the structure surveyed is the metal constructions such as steel construction, can directly by magnetic base ring 12, safety box 10 be fixed on by geodesic structure; If the structure surveyed is the structure that concrete etc. does not have magnetic adsorption capacity, can direct silica gel etc. magnetic base ring 12 and institute's geodesic structure be sticked together, thus by fixing for safety box structurally.
The top board 13 of the safety box 10 in the present invention and circumferential side wall 11 by CFRP disposal molding, then on top board 13 according to the diameter auger shell pit 61 of length adjustment bar 4, circumferential side wall 11 bores sensor wiring hole 7.First length adjustment bar 4 is screwed into during use in threaded hole 61 reserved on safety box 10 top board 13, then the end of length adjustment bar 4 and locking cap 5 are bonded to an entirety.Sensor 2 is inserted the shockproof gasket ring 3 of rubber, the wire of sensor 2 is drawn by the sensor wiring hole 7 on the circumferential side wall 11 of safety box 10, sealing gasket is added between wire and sensor wiring hole 7, then the shockproof gasket ring 3 with sensor 2 is loaded in safety box 10, finally, magnetic base ring 12 bottom safety box 10 is sticked into a main body with the circumferential side wall 11 of safety box 10, thus forms a flush type voice sending sensor system.When carrying out health monitoring to underground embedded structure, can be reserved the space more bigger than safety box 10 by geodesic structure now, thus safety box 10 is placed in one is buried in the earth therewith.
Although invention has been described by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; when not departing from present inventive concept, can also make a lot of distortion, these all belong within protection of the present invention.
Claims (2)
1. a flush type voice sending sensor system, comprise sensor (2), it is characterized in that, described sensor (2) is placed in the safety box of a cylindrical shape, the top board (13) of described safety box (10) and circumferential side wall (11) are cast by CFRP material and are formed, described circumferential side wall (11) is provided with sensor wiring hole (7), described top board (13) is provided with threaded hole (61), a length adjustment bar (4) is combined with in described threaded hole (61), described length adjustment bar (4) is CFRP muscle, the bottom of described length adjustment bar (4) is provided with locking cap (5), the bottom surface of described locking cap (5) is provided with the groove to fovea superior, the internal diameter of described groove is greater than the external diameter of sensor, the bottom of described safety box (10) is provided with a magnetic base ring (12), the internal diameter of described magnetic base ring (12) equals the external diameter+0.5mm of described sensor, the top of described magnetic base ring (12) is provided with a shockproof gasket ring (3), described shockproof gasket ring (3) is quality of rubber materials, the internal diameter of described shockproof gasket ring (3) equals the external diameter-0.1mm of described sensor, described sensor (2) is closely inlaid in described shockproof gasket ring (3), the end face of described sensor (2) contacts with the groove surface of locking cap (5) bottom surface, the bottom surface of described sensor (2) is concordant with the bottom surface of magnetic base ring (12).
2. flush type voice sending sensor system according to claim 1, it is characterized in that, described length adjustment bar (4) is provided with the thread segment (62) coordinated with threaded hole (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510598839.4A CN105203640A (en) | 2015-09-18 | 2015-09-18 | Embedded type acoustic emission sensing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510598839.4A CN105203640A (en) | 2015-09-18 | 2015-09-18 | Embedded type acoustic emission sensing system |
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| CN105203640A true CN105203640A (en) | 2015-12-30 |
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| CN201510598839.4A Pending CN105203640A (en) | 2015-09-18 | 2015-09-18 | Embedded type acoustic emission sensing system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109405952A (en) * | 2017-08-18 | 2019-03-01 | 北京林业大学 | A kind of sound proof box and test macro and test method using the sound proof box |
| CN110044702A (en) * | 2019-05-05 | 2019-07-23 | 中国人民解放军陆军装甲兵学院 | Vacuum sound emission nondestructive detection system |
| CN110082194A (en) * | 2019-05-05 | 2019-08-02 | 中国人民解放军陆军装甲兵学院 | Coating material original position stretching observation method |
| CN110243328A (en) * | 2019-06-14 | 2019-09-17 | 上海交通大学 | The sensor and method of measurement soil and underground structure contact interface dynamic Relative sliding |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405952A (en) * | 2017-08-18 | 2019-03-01 | 北京林业大学 | A kind of sound proof box and test macro and test method using the sound proof box |
| CN109405952B (en) * | 2017-08-18 | 2024-06-18 | 北京林业大学 | Sound insulation box, test system and test method using sound insulation box |
| CN110044702A (en) * | 2019-05-05 | 2019-07-23 | 中国人民解放军陆军装甲兵学院 | Vacuum sound emission nondestructive detection system |
| CN110082194A (en) * | 2019-05-05 | 2019-08-02 | 中国人民解放军陆军装甲兵学院 | Coating material original position stretching observation method |
| CN110243328A (en) * | 2019-06-14 | 2019-09-17 | 上海交通大学 | The sensor and method of measurement soil and underground structure contact interface dynamic Relative sliding |
| CN110243328B (en) * | 2019-06-14 | 2024-06-04 | 上海交通大学 | Sensor and method for measuring dynamic relative slippage of contact interface of soil and underground structure |
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Application publication date: 20151230 |
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