CN216955755U - Active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system - Google Patents
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- 238000009659 non-destructive testing Methods 0.000 title claims abstract description 17
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Abstract
Description
技术领域technical field
本实用新型涉及工程检测技术领域,尤其涉及一种适用于建筑碳纤维加固工程的主动激励红外热成像无损检测系统。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.
背景技术Background technique
碳纤维加固技术施工工艺流程简单、工期短、效率高,其材料本身相对强度高、重量轻,加固过程中几乎不用外物加压,对原结构几乎没有损坏,加固施工后基本不改变原结构外型尺寸、不增加原结构自重,可用于混凝土结构抗弯、抗剪加固,同时广泛用于各类工业与民用建筑物、构造物的防震、防裂、防腐的补强。碳纤维加固技术省时省力、节省空间、加固效果好,不仅可以提高建筑物的使用寿命,还可以降低建筑物的加固成本,应用前景广阔。The construction process of carbon fiber reinforcement technology is simple, the construction period is short, and the efficiency is high. The material itself has high relative strength and light weight. There is almost no external pressure during the reinforcement process, and the original structure is hardly damaged. It can be used for flexural and shear reinforcement of concrete structures, and it is widely used in various industrial and civil buildings and structures for earthquake-proof, crack-proof and anti-corrosion reinforcement. Carbon fiber reinforcement technology saves time and effort, saves space, and has a good reinforcement effect. It can not only improve the service life of buildings, but also reduce the cost of reinforcement of buildings, and has broad application prospects.
传统地,一般采用锤击法来检测碳纤维加固的粘贴质量,通过对每一寸的碳纤维布进行锤击,检测碳纤维布与结构之间是否存在空鼓,达到检测碳纤维布与结构贴合程度的目的。此种方法虽然简单,但工作量大、容易漏检、也易对结构造成破坏。Traditionally, the sticking quality of carbon fiber reinforcement is generally detected by hammering. By hammering every inch of carbon fiber cloth, it can detect whether there is a hollow between the carbon fiber cloth and the structure, so as to detect the degree of fit between the carbon fiber cloth and the structure. . Although this method is simple, it has a large workload, is easy to miss inspection, and is easy to cause damage to the structure.
相较于传统的检测技术,非接触、响应快、精确度高检测范围大的红外热成像无损检测技术得到广泛应用。其中,基于主动激励的红外热成像无损检测技术通过提高检测区域表面的辐射水平来增大其与周围环境的辐射差异,以此来得到温度差异更加明显的热图,提高检测精度。目前常用的主动激励红外热成像无损检测系统或装置,多是通过控制激励源的工作时间来实现增大检测区域与周围环境辐射差异的目的。考虑到建筑碳纤维加固工程项目一般空间大、检测点位多、同一检测点位检测区域多等因素,上述方式的测试识别度难以把握,亦不能保证同一建筑碳纤维加固工程、多检测点位(或同一检测点位、不同检测区域)表面温度的一致性,不利于检测结果的横向对比分析。Compared with the traditional detection technology, the non-contact, fast response, high precision and large detection range of infrared thermal imaging non-destructive testing technology has been widely used. Among them, the infrared thermal imaging non-destructive testing technology based on active excitation increases the radiation difference between the surface of the detection area and the surrounding environment by increasing the radiation level of the detection area, so as to obtain a heat map with more obvious temperature difference and improve the detection accuracy. At present, the commonly used active excitation infrared thermal imaging nondestructive testing systems or devices mostly achieve the purpose of increasing the radiation difference between the detection area and the surrounding environment by controlling the working time of the excitation source. Considering the factors such as large space, many detection points, and many detection areas of the same detection point, the test recognition degree of the above method is difficult to grasp, and it cannot guarantee the same building carbon fiber reinforcement project, multiple detection points (or The consistency of the surface temperature of the same detection point, different detection areas) is not conducive to the lateral comparative analysis of the detection results.
实用新型内容Utility model content
为解决上述问题,本实用新型提供了一种基于温度控制的主动激励红外热成像建筑碳纤维加固无损检测系统。In order to solve the above problems, the utility model provides an active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system based on temperature control.
为实现上述目的,本实用新型提供如下技术方案:To achieve the above object, the utility model provides the following technical solutions:
一种主动激励红外热成像建筑碳纤维加固无损检测系统,主要由激励源、红外热像仪、温度传感器、控制器和计算机组成。An active excitation infrared thermal imaging building carbon fiber reinforcement nondestructive testing system is mainly composed of an excitation source, an infrared thermal imaging camera, a temperature sensor, a controller and a computer.
所述激励源,优选卤素灯激励、激光激励或超声波激励中的一种;一次检测过程中可以使用一个激励源,也可以根据需要使用多个激励源,且多个激励源的激励方式、结构、功能等完全相同。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 multiple excitation sources can be used as needed, and the excitation methods and structures of the multiple excitation sources can be used. , functions, etc. are exactly the same.
所述红外热像仪与激励源设置于待检测结构的同一侧,实时采集待检测结构检测区域表面的温度场变化,获取热图序列并依次传输给计算机。The infrared thermal imager and the excitation source are arranged on the same side of the structure to be detected, collect the temperature field changes on the surface of the detection area of the structure to be detected in real time, acquire a sequence of heat maps and transmit them to the computer in turn.
所述温度传感器包括两种:一种贴片式温度传感器安装在待检测结构的检测区域表面,实时采集检测区域的表面温度;另一种温度传感器安装在待检测结构周围的环境中,实时采集周围环境的温度。两种温度传感器均可以是单独的一个温度传感器,也可以根据实际检测情况扩展成温度传感器阵列。The temperature sensors include two types: one is a patch-type temperature sensor installed on the surface of the detection area of the structure to be detected, and the surface temperature of the detection area is collected in real time; ambient temperature. Both of the two temperature sensors can be a single temperature sensor, or can be expanded into a temperature sensor array according to the actual detection situation.
所述控制器通过线路分别与激励源、红外热像仪和温度传感器连接,通过比较检测区域表面和周围环境的温度差异与预设触发温差值来触发激励源和红外热像仪的启停;通过总线方式与计算机连接,将获取的检测区域表面和周围环境温度传输至计算机进行记录保存。The controller is respectively connected with the excitation source, the infrared thermal imager and the temperature sensor through the circuit, and triggers the start and stop of the excitation source and the infrared thermal imager by comparing the temperature difference between the surface of the detection area and the surrounding environment and the preset trigger temperature difference value; It is connected to the computer through a bus, and the acquired temperature of the surface of the detection area and the surrounding environment is transmitted to the computer for record keeping.
所述计算机通过总线方式分别与控制器和红外热像仪连接,接收控制器上传的检测区域表面和周围环境温度数据以及红外热像仪上传的热图序列,记录保存,并对所获得的热图序列进行处理分析,从而获得检测区域内部空鼓等详细信息,实现对待检测结构的无接触无损检测。The computer is respectively connected to the controller and the infrared thermal imager through a bus, receives the temperature data of the surface of the detection area and the surrounding environment uploaded by the controller and the heat map sequence uploaded by the infrared thermal imager, records and saves, and analyzes the obtained thermal image. The image sequence is processed and analyzed to obtain detailed information such as hollow drums in the inspection area, and realize non-contact non-destructive inspection of the structure to be inspected.
本实用新型的积极效果是:The positive effects of the present utility model are:
1、该主动激励红外热成像建筑碳纤维加固无损检测系统,基于温度控制,提高测试识别度、保证准确度的同时实现了同一建筑碳纤维加固工程、多检测点位(或同一检测点位、不同检测区域)表面温度一致性的目的,便于检测结果的横向对比分析。1. The active excitation infrared thermal imaging building carbon fiber reinforcement non-destructive testing system, based on temperature control, improves test recognition, ensures accuracy, and realizes the same building carbon fiber reinforcement project, multiple detection points (or the same detection point, different detection The purpose of the surface temperature consistency is to facilitate the lateral comparative analysis of the detection results.
2、该主动激励红外热成像建筑碳纤维加固无损检测系统,结构简单,可扩展性强。激励源、温度传感器可扩展成激励源阵列、温度传感器阵列,数据传输方式可扩展成无线数据传输。2. The active excitation infrared thermal imaging building carbon fiber reinforced nondestructive testing system has simple structure and strong expansibility. The excitation source and temperature sensor can be expanded into excitation source array and temperature sensor array, and the data transmission mode can be expanded into wireless data transmission.
附图说明Description of drawings
图1为本实用新型结构示意图。Figure 1 is a schematic structural diagram of the utility model.
具体实施方式Detailed ways
下面将结合本实用新型实施例中的附图,对本实用新型实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本实用新型一部分实施例,旨在用于解释本实用新型,而不能理解为对本实用新型的限制。The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and are intended to be used for explaining The present invention should not be construed as a limitation of the present invention.
如图1所示,本实用新型提供的主动激励红外热成像建筑碳纤维加固无损检测系统,主要由激励源1、红外热像仪2、温度传感器、控制器3和计算机4组成。As shown in FIG. 1 , the active excitation infrared thermal imaging building carbon fiber reinforced nondestructive testing system provided by the present invention is mainly composed of an
激励源1用于提高待检测结构7检测区域表面的辐射水平从而增大其与周围环境的辐射差异,红外热像仪2与激励源1设置于待检测结构7的同一侧,实时采集待检测结构7检测区域表面的温度场变化,获取热图序列并依次传输给计算机4。温度传感器包括安装在待检测结构7检测区域表面的第一温度传感器5(或第一温度传感器阵列5)和安装在待检测结构7周围环境中的第二温度传感器6(或第二温度传感器阵列6)两种。The
控制器3通过线路与激励源1、红外热像仪2、第一温度传感器5和第二温度传感器6连接,通过总线方式与计算机4连接。控制器3通过比较待检测结构7检测区域表面和周围环境的温度差异触发激励源1和红外热像仪2的启停,同时将获取的检测区域表面和周围环境的温度数据传输至计算机4进行记录保存。The
计算机4通过总线方式与红外热像仪2连接,接收红外热像仪2上传的热图序列,记录保存,并对所获得的热图序列进行处理分析,从而获得待检测结构7检测区域内部空鼓等详细信息,实现对待检测结构7的无接触无损检测。The computer 4 is connected to the infrared
工作时,启动计算机4、控制器3,预设触发温差值,控制器3启动激励源1、红外热像仪2、第一温度传感器5和第二温度传感器6,激励源1发出激励信号,红外热像仪2采集待检测结构7检测区域表面温度场变化并将其传输给计算机4,同时第一温度传感器5采集待检测结构7检测区域表面温度、第二温度传感器6采集周围环境温度;计算比较检测区域表面和周围环境的温差值是否达到预设触发温差值,若达到,控制器3控制激励源1、红外热像仪2、第一温度传感器5和第二温度传感器6停止工作;最后,计算机4对所获热图序列进行处理分析。该区域检测完成,将装置移动至下一个检测区域,重复上述操作即可,直至完成整个建筑的碳纤维加固检测。When working, start the computer 4 and the
本实用新型结构简单、准确度高,可扩展性强,通过温度自动控制系统工作,以此,达到同一建筑碳纤维加固工程、多检测点位(或同一检测点位、不同检测区域)表面温度的一致性,提高了测试的识别度以及系统对缺陷部位测试的准确度,便于对检测结果的横向对比分析。The utility model has the advantages of simple structure, high accuracy and strong expansibility, and works through an automatic temperature control system, so that the surface temperature of the same building carbon fiber reinforcement project and multiple detection points (or the same detection point and different detection areas) can be achieved. Consistency improves the recognition of the test and the accuracy of the system's testing of defective parts, and facilitates the horizontal comparative analysis of the test results.
最后应说明的是:以上所述仅为本实用新型的优选实施例而已,并不用于限制本实用新型,尽管参照前述实施例对本实用新型进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换。凡在本实用新型的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本实用新型的保护范围之内。Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
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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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