CN216955755U - Active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system - Google Patents
Active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system Download PDFInfo
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- CN216955755U CN216955755U CN202220096363.XU CN202220096363U CN216955755U CN 216955755 U CN216955755 U CN 216955755U CN 202220096363 U CN202220096363 U CN 202220096363U CN 216955755 U CN216955755 U CN 216955755U
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Abstract
The utility model discloses an active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system which mainly comprises an excitation source, an infrared thermal imager, a temperature sensor, a controller and a computer and works through an automatic temperature control system. The excitation source and the thermal infrared imager are arranged on the same side of the structure to be detected, one of the temperature sensors is arranged on the surface of a detection area of the structure to be detected, and the other temperature sensor is arranged in the surrounding environment of the structure to be detected. The system is simple in structure and high in accuracy, the trigger temperature difference value is preset during working, the starting and stopping of the excitation source are controlled by comparing the temperature difference value of the surface of the detection area of the structure to be detected and the surrounding environment with the preset trigger temperature difference value, the identification degree of the test is improved, the consistency of the surface temperature of the same building carbon fiber reinforcement project and multiple detection points (or the same detection point and different detection areas) is ensured, the accuracy of the system for testing the defect part is improved, and reliable data support is provided for transverse contrastive analysis of the detection result.
Description
Technical Field
The utility model relates to the technical field of engineering detection, in particular to an active excitation infrared thermal imaging nondestructive detection system suitable for building carbon fiber reinforcement engineering.
Background
The carbon fiber reinforcement technology has the advantages of simple construction process flow, short construction period, high efficiency, high relative strength of the material, light weight, almost no external object pressurization in the reinforcement process, almost no damage to the original structure, basically no change of the external dimension of the original structure after reinforcement construction, no increase of the self weight of the original structure, capability of being used for bending resistance and shearing resistance reinforcement of a concrete structure, and wide application in the reinforcement of vibration resistance, crack resistance and corrosion resistance of various industrial and civil buildings and structures. The carbon fiber reinforcement technology is time-saving, labor-saving, space-saving and good in reinforcement effect, the service life of a building can be prolonged, the reinforcement cost of the building can be reduced, and the application prospect is wide.
Traditionally, generally adopt the hammering method to detect the reinforced quality of pasting of carbon fiber, carry out the hammering through the carbon cloth to each cun, detect whether there is empty drum between carbon cloth and the structure, reach the purpose that detects carbon cloth and structure laminating degree. Although the method is simple, the method has large workload, is easy to miss detection and is easy to damage the structure.
Compared with the traditional detection technology, the infrared thermal imaging nondestructive detection technology with non-contact, quick response, high accuracy and large detection range is widely applied. The infrared thermal imaging nondestructive detection technology based on active excitation increases the radiation difference between the surface of the detection area and the ambient environment by increasing the radiation level of the surface of the detection area, so that a thermal map with more obvious temperature difference is obtained, and the detection precision is improved. At present, most of the commonly used active excitation infrared thermal imaging nondestructive detection systems or devices achieve the purpose of increasing the radiation difference between a detection area and the surrounding environment by controlling the working time of an excitation source. Considering the factors of large general space, many detection points, many detection areas of the same detection point and the like of the building carbon fiber reinforcement project, the test identification degree of the above method is difficult to grasp, the consistency of the surface temperature of the same building carbon fiber reinforcement project and the multiple detection points (or the same detection point and different detection areas) cannot be ensured, and the transverse comparison and analysis of the detection results are not facilitated.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides an active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system based on temperature control.
In order to achieve the purpose, the utility model provides the following technical scheme:
an active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system mainly comprises an excitation source, an infrared thermal imager, a temperature sensor, a controller and a computer.
The excitation source is preferably one of halogen lamp excitation, laser excitation or ultrasonic excitation; one excitation source can be used in one detection process, or a plurality of excitation sources can be used according to needs, and the excitation modes, structures, functions and the like of the plurality of excitation sources are completely the same.
The thermal infrared imager and the excitation source are arranged on the same side of the structure to be detected, the temperature field change of the surface of the detection area of the structure to be detected is collected in real time, and the thermal image sequence is obtained and sequentially transmitted to the computer.
The temperature sensor includes two types: a surface mount type temperature sensor is arranged on the surface of a detection area of a structure to be detected, and the surface temperature of the detection area is collected in real time; the other temperature sensor is arranged in the environment around the structure to be detected, and is used for collecting the temperature of the surrounding environment in real time. Both the two temperature sensors can be a single temperature sensor, and can also be expanded into a temperature sensor array according to the actual detection condition.
The controller is respectively connected with the excitation source, the thermal infrared imager and the temperature sensor through circuits, and the start and stop of the excitation source and the thermal infrared imager are triggered by comparing the temperature difference between the surface of the detection area and the ambient environment with a preset trigger temperature difference value; and the temperature sensor is connected with a computer in a bus mode, and transmits the acquired surface of the detection area and the ambient temperature to the computer for recording and storing.
The computer is respectively connected with the controller and the thermal infrared imager in a bus mode, receives the temperature data of the surface and the surrounding environment of the detection area uploaded by the controller and the thermal image sequence uploaded by the thermal infrared imager, records and stores the data, and processes and analyzes the obtained thermal image sequence, thereby obtaining detailed information such as hollowing and the like in the detection area and realizing non-contact nondestructive detection of the structure to be detected.
The utility model has the positive effects that:
1. the active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system is based on temperature control, improves the testing identification degree, guarantees the accuracy, simultaneously achieves the purposes of surface temperature consistency of the same building carbon fiber reinforcement project and multiple detection points (or the same detection point and different detection areas), and facilitates the transverse contrastive analysis of the detection results.
2. The active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system is simple in structure and high in expandability. The excitation source and the temperature sensor can be expanded into an excitation source array and a temperature sensor array, and the data transmission mode can be expanded into wireless data transmission.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, and are intended to illustrate the present invention, but not to be construed as limiting the present invention.
As shown in FIG. 1, the active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system provided by the utility model mainly comprises an excitation source 1, a thermal infrared imager 2, a temperature sensor, a controller 3 and a computer 4.
The excitation source 1 is used for improving the radiation level of the surface of the detection area of the structure 7 to be detected so as to increase the radiation difference between the structure and the surrounding environment, the thermal infrared imager 2 and the excitation source 1 are arranged on the same side of the structure 7 to be detected, the temperature field change of the surface of the detection area of the structure 7 to be detected is collected in real time, and the heat map sequence is obtained and sequentially transmitted to the computer 4. The temperature sensors include two types, a first temperature sensor 5 (or a first temperature sensor array 5) mounted on the surface of the detection area of the structure 7 to be detected and a second temperature sensor 6 (or a second temperature sensor array 6) mounted in the environment surrounding the structure 7 to be detected.
The controller 3 is connected with the excitation source 1, the thermal infrared imager 2, the first temperature sensor 5 and the second temperature sensor 6 through lines and is connected with the computer 4 through a bus mode. The controller 3 triggers the start and stop of the excitation source 1 and the thermal infrared imager 2 by comparing the temperature difference between the surface of the detection area of the structure 7 to be detected and the ambient environment, and transmits the acquired temperature data of the surface of the detection area and the ambient environment to the computer 4 for recording and storing.
The computer 4 is connected with the thermal infrared imager 2 in a bus mode, receives the thermal image sequence uploaded by the thermal infrared imager 2, records and stores the thermal image sequence, and processes and analyzes the obtained thermal image sequence, so that detailed information such as hollowing and the like in the detection area of the structure 7 to be detected is obtained, and non-contact nondestructive detection of the structure 7 to be detected is realized.
During working, the computer 4 and the controller 3 are started, a trigger temperature difference value is preset, the controller 3 starts the excitation source 1, the thermal infrared imager 2, the first temperature sensor 5 and the second temperature sensor 6, the excitation source 1 sends out an excitation signal, the thermal infrared imager 2 collects the surface temperature field change of the detection area of the structure 7 to be detected and transmits the change to the computer 4, and meanwhile, the first temperature sensor 5 collects the surface temperature of the detection area of the structure 7 to be detected and the second temperature sensor 6 collects the ambient temperature; calculating and comparing whether the temperature difference value between the surface of the detection area and the ambient environment reaches a preset trigger temperature difference value or not, and if so, controlling the excitation source 1, the thermal infrared imager 2, the first temperature sensor 5 and the second temperature sensor 6 to stop working by the controller 3; finally, the computer 4 performs a processing analysis of the obtained heatmap sequence. And (4) completing the area detection, moving the device to the next detection area, and repeating the operation until the carbon fiber reinforcement detection of the whole building is completed.
The utility model has simple structure, high accuracy and strong expandability, and can work through the automatic temperature control system, thereby achieving the consistency of the surface temperature of the same building carbon fiber reinforcement project and multiple detection points (or the same detection point and different detection areas), improving the identification degree of the test and the accuracy of the system for testing the defect part, and facilitating the transverse comparison and analysis of the detection result.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an infrared thermal imaging building carbon fiber reinforcement nondestructive test system of active excitation which characterized in that: the system comprises an excitation source (1), a thermal infrared imager (2), a controller (3) and a computer (4);
the controller (3) is electrically connected with a first temperature sensor (5) and a second temperature sensor (6), the first temperature sensor (5) is installed on the surface of a detection area of the structure (7) to be detected, and the second temperature sensor (6) is installed in the surrounding environment of the structure (7) to be detected.
2. The active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system of claim 1, characterized in that: the excitation source (1) is selected from one of halogen lamp excitation, laser excitation or ultrasonic excitation.
3. The active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system of claim 1, characterized in that: the controller (3) is connected with the excitation source (1), the thermal infrared imager (2), the first temperature sensor (5) and the second temperature sensor (6) through lines and is connected with the computer (4) in a bus mode.
4. The active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system of claim 3, characterized in that: the thermal infrared imager (2) is connected with the computer (4) in a bus mode.
5. The active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system of claim 1, characterized in that: the thermal infrared imager (2) and the excitation source (1) are arranged on the same side of the structure (7) to be detected.
6. The system for building carbon fiber reinforcement nondestructive testing by active excitation infrared thermal imaging according to claim 1, characterized in that: the first temperature sensor (5) is a single sensor or a first temperature sensor array, and the second temperature sensor (6) is a single sensor or a second temperature sensor array.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117589793A (en) * | 2024-01-19 | 2024-02-23 | 辽宁爱尔创科技有限公司 | Detection system, method, device, equipment and storage medium for ceramic sleeve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117589793A (en) * | 2024-01-19 | 2024-02-23 | 辽宁爱尔创科技有限公司 | Detection system, method, device, equipment and storage medium for ceramic sleeve |
| CN117589793B (en) * | 2024-01-19 | 2024-04-16 | 辽宁爱尔创科技有限公司 | Detection system, method, device, equipment and storage medium for ceramic sleeve |
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