技术领域Technical field
本发明涉及贵金属行业的无损检测领域，具体涉及一种基于红外热成像技术的便携式贵金属层间掺假无损检测装置。The invention relates to the field of non-destructive testing in the precious metal industry, and in particular to a portable non-destructive testing device for inter-layer adulteration of precious metals based on infrared thermal imaging technology.
背景技术Background technique
当前，我国贵金属交易市场日益蓬勃，尤其在黄金贸易行业：2018年，我国黄金首饰消费量为736.29吨，同比增长5.71％；金条285.2吨，增长3.19％。然而目前，市场上国标黄金夹层掺假的问题日益严重，尤其是钨或铱元素的掺杂，由此导致的黄金骗贷和欺诈消费现象屡见不鲜。钨、铱两种金属与黄金的物理特性较为接近，且都具备较强的化学稳定性，但是价格相差甚大，黄金平均价格为360元/g，钨平均价格为0.28元/g，铱平均价格为393元/g，造假者只需在金条中掺入大量的钨，再以少量的铱平衡密度，即可制造成本极低的掺假金条，巨大的利润差成为造假者的驱动力。Currently, my country's precious metal trading market is increasingly booming, especially in the gold trading industry: in 2018, my country's gold jewelry consumption was 736.29 tons, a year-on-year increase of 5.71%; gold bars were 285.2 tons, an increase of 3.19%. However, currently, the problem of adulteration of national-standard gold interlayers on the market is becoming increasingly serious, especially the doping of tungsten or iridium elements. The resulting gold loan fraud and fraudulent consumption phenomena are common. The physical properties of tungsten and iridium are relatively close to gold, and both have strong chemical stability. However, the prices are very different. The average price of gold is 360 yuan/g, the average price of tungsten is 0.28 yuan/g, and the average price of iridium is 0.28 yuan/g. The price is 393 yuan/g. Counterfeiters only need to mix a large amount of tungsten into gold bars, and then balance the density with a small amount of iridium to produce extremely low-cost adulterated gold bars. The huge profit difference becomes the driving force for counterfeiters.
由于贵金属层间掺假后，整个样品的质量、外形等特征与纯金的基本一致，普通人无法从肉眼或物理方法辨别真假，这样给消费者造成了巨大的经济损失，影响了黄金市场，诚信危机涌现。目前，大多数贵金属的检测方法，如测密度、火烧法、物理弯曲等简单手段，既缺乏准确有效的理论判据，又容易被不法分子误导欺骗。而现有的科学贵金属检测多要对贵金属进行重新熔铸取样，破环原先的结构，并且仪器本身笨重大型，价格昂贵，操作冗长复杂。因此，寻找更为有效便捷的辨别贵金属掺假的装置，是当前急需解决的技术问题之一。Since the precious metal layers are adulterated, the quality, appearance and other characteristics of the entire sample are basically the same as those of pure gold. Ordinary people cannot distinguish the authenticity from the naked eye or physical methods. This has caused huge economic losses to consumers and affected the gold market. , a crisis of integrity emerged. At present, most precious metal detection methods, such as density measurement, fire method, physical bending and other simple methods, lack accurate and effective theoretical criteria and are easily misled and deceived by criminals. However, the existing scientific precious metal detection methods usually require re-casting and sampling of precious metals, destroying the original structure, and the instrument itself is bulky, large, expensive, and the operation is lengthy and complicated. Therefore, finding a more effective and convenient device for identifying precious metal adulteration is one of the current technical problems that urgently need to be solved.
发明内容Contents of the invention
本发明旨在解决以上技术问题，提出一种基于红外热成像技术的便携式贵金属层间掺假无损检测装置。The present invention aims to solve the above technical problems and proposes a portable non-destructive detection device for interlayer adulteration of precious metals based on infrared thermal imaging technology.
本发明基于红外热成像技术的便携式贵金属层间掺假无损检测装置，包括手提箱、以及手提箱内安装的、红外热成像模块、电源模块、样品载物台、数据分析终端模块、测温模块与数据时间同步功能模块。The present invention is a portable precious metal interlayer adulteration non-destructive detection device based on infrared thermal imaging technology, including a suitcase, and an infrared thermal imaging module, a power supply module, a sample stage, a data analysis terminal module and a temperature measurement module installed in the suitcase. Function module for data time synchronization.
所述恒温热激励模块用于为样品载物台施加冷激励或热激励，实现对检测样品的温度控制；The constant temperature thermal excitation module is used to apply cold excitation or thermal excitation to the sample stage to achieve temperature control of the detection sample;
红外热成像模块用于获取样品载物台上放置的检测样品的红外热成像图。The infrared thermal imaging module is used to obtain infrared thermal imaging images of the test samples placed on the sample stage.
测温模块用来测量检测样品温度数据。The temperature measurement module is used to measure and detect sample temperature data.
数据时间同步功能模块用来实时获取图像数据及温度数据，并同步发送至数据分析终端模块。The data time synchronization function module is used to obtain image data and temperature data in real time and send them to the data analysis terminal module synchronously.
数据分析终端模块用来接收图像数据及温度数据并进行显示。The data analysis terminal module is used to receive image data and temperature data and display them.
电源模块用来进行供电。The power module is used to provide power.
同时本发明中还设计有暗室。暗室为顶面具有开口的盖体，与恒温水浴箱顶面间扣合；暗室上设计有与暗室内部相通的插口，用于插接红外热成像模块，由外热成像模块将插口封闭，无光照入暗室。At the same time, a darkroom is also designed in the present invention. The darkroom is a cover with an opening on the top surface, which is fastened to the top surface of the constant temperature water bath. The darkroom is designed with a socket connected to the inside of the darkroom, which is used to plug in the infrared thermal imaging module. The socket is closed by the external thermal imaging module. Light enters the dark room.
本发明的优点在于：The advantages of the present invention are:
1、本发明基于红外热成像技术的便携式贵金属层间掺假无损检测装置，在使用过程中，对贵金属样品是否掺假结果实时同步成像，精准快速对比，同时操作简便，无需繁琐流程，且不会损坏样品结构；1. The portable non-destructive detection device for inter-layer adulteration of precious metals based on infrared thermal imaging technology of the present invention can, during use, perform real-time and synchronous imaging of whether the precious metal sample is adulterated, making accurate and rapid comparisons. It is also easy to operate, does not require cumbersome processes, and does not require Will damage the sample structure;
2、本发明基于红外热成像技术的便携式贵金属层间掺假无损检测装置，冷源激励、高效稳定：样机可以使用冷源激励，高效放大样品间热导率的差异特征，降低水蒸气对检测的影响。2. The portable non-destructive detection device for interlayer adulteration of precious metals based on infrared thermal imaging technology of the present invention is excited by cold source, efficient and stable: the prototype can be excited by cold source, which can efficiently amplify the difference in thermal conductivity between samples and reduce the impact of water vapor on detection. Impact.
3、本发明基于红外热成像技术的新型便携式贵金属层间掺假无损检测装置，运用算法、充分学习：通过大量数据、特定算法训练，实现热成像图的智能化识别。3. The present invention’s new portable non-destructive detection device for interlayer adulteration of precious metals based on infrared thermal imaging technology uses algorithms and full learning: through large amounts of data and specific algorithm training, it can realize intelligent identification of thermal imaging images.
4、本发明基于红外热成像技术的便携式贵金属层间掺假无损检测装置，根据仿真数据，构建标准数据库红外热成像仪能够对样品实时成像，数据分析系统实时接收，分析比对，可利用有限元仿真的结果构建的对比数据库，能够快速准确辨别掺假黄金。4. The present invention is a portable non-destructive detection device for precious metal interlayer adulteration based on infrared thermal imaging technology. Based on the simulation data, a standard database is constructed. The infrared thermal imager can image the sample in real time, and the data analysis system can receive, analyze and compare in real time. It can use limited The comparison database constructed from the results of meta-simulation can quickly and accurately identify adulterated gold.
5、本发明基于红外热成像技术的便携式贵金属层间掺假无损检测装置，构建暗室、排除干扰：构建暗室及相关工具，排除外界光线对红外镜头的干扰，保证检测结果的准确。5. The present invention is a portable non-destructive detection device for interlayer adulteration of precious metals based on infrared thermal imaging technology. It constructs a darkroom and eliminates interference: it constructs a darkroom and related tools to eliminate the interference of external light on the infrared lens and ensure the accuracy of the detection results.
6、本发明基于红外热成像技术的便携式贵金属层间掺假无损检测装置，在携带过程中，轻巧方便，运输便利，可折叠小型化箱体和易拆卸杆件设计保证工作人员实时有效地展开工作。6. The portable non-destructive detection device for interlayer adulteration of precious metals based on the infrared thermal imaging technology of the present invention is light and convenient to carry and transport. The design of the foldable miniaturized box and the easy-to-detach rod ensures that workers can deploy it effectively in real time. Work.
附图说明Description of the drawings
图1为本发明一种基于红外热成像技术的便携式贵金属层间掺假无损检测装置整体结构示意图；Figure 1 is a schematic diagram of the overall structure of a portable non-destructive detection device for interlayer adulteration of precious metals based on infrared thermal imaging technology according to the present invention;
图2为本发明一种基于红外热成像技术的便携式贵金属层间掺假无损检测装置中恒温热激励模块结构示意图。Figure 2 is a schematic structural diagram of a constant-temperature thermal excitation module in a portable non-destructive detection device for interlayer adulteration of precious metals based on infrared thermal imaging technology according to the present invention.
图3为本发明恒温热激励模块中排气孔设计方式示意图。Figure 3 is a schematic diagram of the design of the exhaust hole in the constant temperature thermal excitation module of the present invention.
图4为本发明一种基于红外热成像技术的便携式贵金属层间掺假无损检测装置中红外热成像模块结构示意图。Figure 4 is a schematic structural diagram of an infrared thermal imaging module in a portable nondestructive detection device for interlayer adulteration of precious metals based on infrared thermal imaging technology according to the present invention.
图5为本发明一种基于红外热成像技术的便携式贵金属层间掺假无损检测装置结构框图。Figure 5 is a structural block diagram of a portable non-destructive detection device for interlayer adulteration of precious metals based on infrared thermal imaging technology according to the present invention.
图6为本发明一种基于红外热成像技术的便携式贵金属层间掺假无损检测装置中暗室结构示意图。Figure 6 is a schematic diagram of the darkroom structure of a portable non-destructive detection device for interlayer adulteration of precious metals based on infrared thermal imaging technology according to the present invention.
图7为本发明一种基于红外热成像技术的便携式贵金属层间掺假无损检测装置中镜头与暗室连接方式示意图。Figure 7 is a schematic diagram of the connection method between the lens and the darkroom in a portable nondestructive detection device for interlayer adulteration of precious metals based on infrared thermal imaging technology according to the present invention.
图中：In the picture:
1-手提箱 2-恒温热激励模块 3-红外热成像模块1-Suitcase 2-Constant temperature thermal excitation module 3-Infrared thermal imaging module
4-电源模块 5-样品载物台 6-数据分析终端模块4-Power module 5-Sample stage 6-Data analysis terminal module
7-测温模块 8-数据时间同步功能模块 9-暗室7-Temperature measurement module 8-Data time synchronization function module 9-Darkroom
101-上盖 102-下箱体 201-紫铜棒101-Upper cover 102-Lower box 201-Copper rod
202-恒温水浴箱 203-温度控制部件 204-隔热板202-Constant temperature water bath 203-Temperature control components 204-Heat insulation board
205-排气口 206-纳米薄膜 207-风扇205-Exhaust port 206-Nano film 207-Fan
301-镜头 302-镜头支撑盒 303-转动单元301-Lens 302-Lens support box 303-Rotation unit
304-调节杆A 305-调节杆B 306-底座304-Adjusting lever A 305-Adjusting lever B 306-Base
307-铰链A 308-铰链B 309-铰链C307-Hinge A 308-Hinge B 309-Hinge C
601-可折叠支架 601a-连接板 601b-固定板601-Foldable bracket 601a-Connecting plate 601b-Fixed plate
801-射频芯片 802-移动电源 901-镜头插口801-RF chip 802-Mobile power supply 901-Lens socket
具体实施方式Detailed ways
下面结合附图对本发明作进一步详细说明。The present invention will be further described in detail below in conjunction with the accompanying drawings.
本发明一种基于红外热成像技术的便携式贵金属层间掺假无损检测装置，包括手提箱1、恒温热激励模块2、红外热成像模块3、电源模块4、样品载物台5、数据分析终端模块6、测温模块7与数据时间同步功能模块8，如图1所示。The invention is a portable non-destructive detection device for interlayer adulteration of precious metals based on infrared thermal imaging technology, which includes a suitcase 1, a constant temperature thermal excitation module 2, an infrared thermal imaging module 3, a power supply module 4, a sample stage 5, and a data analysis terminal. Module 6, temperature measurement module 7 and data time synchronization function module 8, as shown in Figure 1.
所述手提箱1作为整个装置的载体，具有上盖101与下箱体102，上盖101与下箱体102后侧面间通过铰接件铰接，形成可翻盖结构。其中，下箱体102内安装恒温热激励模块2、红外热成像模块3、电源模块4和样品载物台5。上盖101为内凹结构，内壁上安装数据分析终端模块6。As the carrier of the entire device, the suitcase 1 has an upper cover 101 and a lower box body 102. The upper cover 101 and the rear side of the lower box body 102 are hinged through hinges to form a flip-top structure. Among them, the constant temperature thermal excitation module 2, the infrared thermal imaging module 3, the power module 4 and the sample stage 5 are installed in the lower box 102. The upper cover 101 has a concave structure, and the data analysis terminal module 6 is installed on the inner wall.
如图2所示，所述恒温热激励模块2置于下盒体2中部，包括紫铜棒201、恒温水浴箱202与温度控制部件203。其中，恒温水浴箱202为顶面开口的箱体结构，横截面为矩形，内部用于盛装冷激励源或热激励源。恒温水浴箱202设置于下盒体中部，底面相对两侧设计有耳环状沉头孔结构，用于配合螺钉实现恒温水浴箱202与下盒体2底面间的固定。As shown in Figure 2, the constant temperature thermal excitation module 2 is placed in the middle of the lower box 2 and includes a copper rod 201, a constant temperature water bath 202 and a temperature control component 203. Among them, the constant temperature water bath box 202 is a box structure with an open top surface and a rectangular cross-section, and is used to contain a cold excitation source or a thermal excitation source inside. The constant temperature water bath 202 is arranged in the middle of the lower box body, and the opposite sides of the bottom surface are designed with earring-shaped countersunk hole structures for fixing the constant temperature water bath box 202 to the bottom surface of the lower box body 2 with screws.
其中，恒温水浴箱202内壁靠近顶面位置周向上设计有台肩，用于搭载隔热板204，由隔热板204隔绝恒温水浴箱内激励源加热或制冷时水蒸气对红外热成像模块3的干扰，以及方便更换水浴箱内的激励源。上述隔热板204顶面对角位置设计有突起，用于手握，以便隔热板204灵活取出；同时在隔热板204顶面上开有通孔，用于向恒温水浴箱202内注入激励源，以及安装温度控制部件203。在恒温水浴箱202底面中部开有四个内螺纹盲孔，且四个盲孔中心分别位于一直角梯形四角处；同时在隔热板204中部开有四个与各盲孔位置对应的通孔，用于插接紫铜棒201。Among them, the inner wall of the constant temperature water bath 202 is designed with a shoulder on the circumference near the top surface, which is used to carry the heat insulation plate 204. The heat insulation plate 204 isolates the water vapor from the infrared thermal imaging module 3 when the excitation source in the constant temperature water bath is heated or cooled. interference, and facilitate the replacement of the excitation source in the water bath. The above-mentioned heat insulation plate 204 is designed with protrusions at diagonal positions on the top surface for holding by the hand so that the heat insulation plate 204 can be flexibly taken out; at the same time, a through hole is opened on the top surface of the heat insulation plate 204 for injecting into the constant temperature water bath 202 excitation source, and install the temperature control component 203. There are four internally threaded blind holes in the middle of the bottom surface of the constant temperature water bath 202, and the centers of the four blind holes are respectively located at the four corners of the right-angled trapezoid; at the same time, there are four through holes corresponding to the positions of the blind holes in the middle of the heat insulation plate 204. , used to plug in the copper rod 201.
紫铜棒201为四根，分别穿过各通孔后，底端与对应的盲孔间螺纹固定连接，实现四根紫铜棒201的固定，通过上述盲孔与通孔开设放置，使四根紫铜棒201间形成直角梯形顶点热源空间布局。四根紫铜棒201顶端用于支撑由导热材料(导热硅胶)制成的样品载物台5，样品载物台5底面设计有四个盲孔，四根紫铜棒201顶端分别插入四个盲孔内，实现与样品载物台间5的固定，使紫铜棒201与样品载物台5间充分接触，由上用于设置检测样品，由样品载物台5扩大检测样品的承载空间，同时作为热源向样品载物台5上所放置的检测样品导热的中间件。上述紫铜棒201的布局，可更稳定的支撑样品载物台5，以及同样也可使样品载物台5以及样品均匀受热。There are four copper rods 201. After passing through each through hole respectively, the bottom end is threadedly connected to the corresponding blind hole to realize the fixation of the four copper rods 201. The above blind holes and through holes are opened and placed, so that the four copper rods 201 are fixed. The spaces between the rods 201 form a right-angled trapezoidal vertex heat source spatial layout. The tops of the four copper rods 201 are used to support the sample stage 5 made of thermally conductive material (thermal conductive silica gel). The bottom surface of the sample stage 5 is designed with four blind holes. The tops of the four copper rods 201 are inserted into the four blind holes respectively. Inside, the fixation with the sample stage 5 is realized, so that the copper rod 201 is fully contacted with the sample stage 5, and is used to set the detection sample from above, and the sample stage 5 expands the carrying space of the detection sample, and at the same time serves as The heat source is an intermediate piece that conducts heat to the detection sample placed on the sample stage 5 . The layout of the above-mentioned copper rods 201 can support the sample stage 5 more stably, and also allows the sample stage 5 and the sample to be heated evenly.
温度控制部件203可采用加热棒或制冷棒，其末端安装有堵块。将加热棒或制冷棒由隔热板204上的通孔插入恒温水浴箱202内，并由堵块插入隔热板204的通孔中，将通孔封堵，使恒温水浴箱202内呈封闭环境。通过温度控制部件203实现恒温水浴箱202内激励源的温度控制。The temperature control component 203 can be a heating rod or a cooling rod, with a plug installed at the end. Insert the heating rod or cooling rod into the constant temperature water bath 202 through the through hole on the heat insulation plate 204, and insert the plug into the through hole of the heat insulation plate 204. Block the through hole so that the inside of the constant temperature water bath 202 is closed. environment. The temperature control of the excitation source in the constant temperature water bath 202 is achieved through the temperature control component 203 .
如图3所示，上述恒温水浴箱202一侧面为夹层结构，该侧面内层与外层相对位置开有四个排气口205，同时在内层外壁上附着纳米薄膜206，并在夹层内安装散热风扇207，使得在使用热激励模式时水蒸气可从篇排气口205排出，一方面防止水蒸气上浮干扰红外热成像模块3检测，同时防止恒温水浴箱202因温度过高膨胀破裂。As shown in Figure 3, one side of the constant temperature water bath 202 has a sandwich structure. There are four exhaust ports 205 at opposite positions between the inner layer and the outer layer of the side. At the same time, a nano-film 206 is attached to the outer wall of the inner layer, and inside the sandwich The cooling fan 207 is installed so that water vapor can be discharged from the exhaust port 205 when using the thermal excitation mode. On the one hand, it prevents water vapor from rising and interfering with the detection of the infrared thermal imaging module 3, and at the same time, it prevents the constant temperature water bath 202 from expanding and rupturing due to excessive temperature.
在恒温热激励模块2开始工作前，首先将隔热板204扣合在恒温水浴箱202上部，并将紫铜棒201经隔热板204上的通孔插入恒温水浴箱202内并固定，此时可从隔热板204上的开孔向恒温水浴箱202内注入适当的激励源。随后，根据需求选择热激励或是冷激励模式，将所需的加热棒或这冷棒经隔热板204上的开孔插入恒温水浴箱内，并由堵头将隔热板204上的开孔封堵。最后将样品载物台5安装于紫铜棒201顶端，并将待检测样品放置到样品载物台5上，此时打开电源，加热棒或制冷棒开始工作，对激励源加热或制冷。当使用热激励模式时，还须打开散热风扇；当恒温热激励模块2停止工作时，先关闭加热/制冷电源，再将待测样品、样品载物台5、紫铜棒201、隔热板204依次取下，收纳即可。Before the constant temperature thermal excitation module 2 starts to work, first fasten the heat shield 204 to the upper part of the constant temperature water bath 202, and insert the copper rod 201 into the constant temperature water bath 202 through the through hole on the heat shield 204 and fix it. An appropriate excitation source can be injected into the constant temperature water bath 202 through the opening on the heat shield 204 . Then, select the thermal excitation or cold excitation mode according to the needs, insert the required heating rod or cold rod into the constant temperature water bath through the opening on the heat insulation plate 204, and use the plug to close the opening on the heat insulation plate 204. The hole is blocked. Finally, the sample stage 5 is installed on the top of the copper rod 201, and the sample to be detected is placed on the sample stage 5. At this time, the power is turned on, and the heating rod or cooling rod starts to work to heat or cool the excitation source. When using the thermal excitation mode, the cooling fan must also be turned on; when the constant temperature thermal excitation module 2 stops working, first turn off the heating/cooling power supply, and then put the sample to be tested, the sample stage 5, the copper rod 201, and the heat shield 204 Remove them one by one and store them away.
如图4所示，所述红外热成像模块3安装于下盒体2左部，包括镜头301、镜头支撑盒302、转动单元303、调节杆A304、调节杆B305与底座306。其中，镜头301为圆形9.5mm镜头，用于拍摄样品载物台5上样品的红外热成像图。镜头301外围通过具有调焦作用的转动单元303安装于镜头支撑盒302前端面上，通过转动单元303可实现镜头301的伸出或缩回镜头支撑盒以及镜头301的自旋转，使镜头301对位焦距可调，成像分辨率不高于0.5摄氏度，温度测试范围为-20～100摄氏度。镜头支撑盒302内部还安装有图像采集模块，用来采集由镜头拍摄的红外热成像图。镜头支撑盒302末端具有安装接头，安装接头通过松紧可调节的铰链A307安装于两根调节杆A304顶端，两根调节杆A304底端与分别由两根调节杆B305顶端内侧通过松紧可调节的铰链B308与两根调节杆B305顶端连接。两根调节杆B305底端通过松紧可调节且具有水平自由度的铰链C309安装于底座306顶部接头两侧。底座306固定安装于下盒体左侧前方底面上。由此通过调节杆A304、调节杆B305以及各铰链共同构成姿态可调杆状支撑结构，实现镜头301的姿态调节。通过上述结构设计，两根调节杆A304可旋转收入两根调节杆B307之间，使红外热成像模块3形成可折叠红外热成像模块3后，折叠后的红外热成像模块3整体位于下盒体2内部左侧进行收纳。上述镜头支撑盒302内还安装有数据采集模块，用来采集镜头301所拍摄的红外热成像图。As shown in Figure 4, the infrared thermal imaging module 3 is installed on the left side of the lower box 2 and includes a lens 301, a lens support box 302, a rotating unit 303, an adjusting rod A304, an adjusting rod B305 and a base 306. Among them, the lens 301 is a circular 9.5mm lens, which is used to take the infrared thermal imaging image of the sample on the sample stage 5 . The periphery of the lens 301 is mounted on the front end surface of the lens support box 302 through a rotation unit 303 with a focusing function. The rotation unit 303 can extend or retract the lens support box and rotate the lens 301, so that the lens 301 can be aligned with the lens 301. The bit focus is adjustable, the imaging resolution is not higher than 0.5 degrees Celsius, and the temperature test range is -20 to 100 degrees Celsius. An image acquisition module is also installed inside the lens support box 302 for collecting infrared thermal imaging images captured by the lens. There is a mounting joint at the end of the lens support box 302. The mounting joint is installed on the top of the two adjusting rods A304 through the elastic and adjustable hinge A307. The bottom ends of the two adjusting rods A304 are connected to the inside of the top of the two adjusting rods B305 through elastic and adjustable hinges. B308 is connected with the top ends of two adjusting rods B305. The bottom ends of the two adjustment rods B305 are installed on both sides of the top joint of the base 306 through hinges C309 with adjustable elasticity and horizontal freedom. The base 306 is fixedly installed on the left front bottom surface of the lower box body. Therefore, the adjusting rod A304, the adjusting rod B305 and each hinge jointly form an attitude-adjustable rod-shaped support structure to realize the attitude adjustment of the lens 301. Through the above structural design, the two adjusting rods A304 can be rotated and retracted between the two adjusting rods B307, so that after the infrared thermal imaging module 3 forms a foldable infrared thermal imaging module 3, the folded infrared thermal imaging module 3 is located entirely in the lower box body 2. Storage on the left side of the interior. The above-mentioned lens support box 302 is also equipped with a data collection module for collecting infrared thermal imaging images captured by the lens 301 .
所述数据分析终端模块6采用的是具备显示功能的小型笔记本电脑或者嵌入式微型电脑，具有一个用于显示检测结果的显示屏、一个用于实现数据分析终端模块功能的含集成运算枢纽的内部电路板，以及一个外部输出接口端以及内置电源；同时数据分析终端模块6内嵌图像处理算法和标准样品温度特征数据库，且底部具有导出数据所需的外接I/O端口，I/O端口包括但不限于USB2.0、USB3.0和Type C。如图1所示，上述结构的数据分析终端模块通过可折叠支架601安装于上盖101上，可折叠支架601包括连接板601a与固定板601b。其中，固定板601b通过螺钉固定安装于上盖101内壁，连接板601a底端与固定板601b侧边通过铰链销连接，连接板601a顶端通过铰链销与数据分析终端模块6后侧设计的铰接面间铰接，且铰链销轴均沿上盖101左右方向，由此使数据分析终端模块6可实现自由平滑地旋转与折叠。上述连接板601a与固定板601b铰接一段设计有限位斜面，由此在连接板601a展开后，通过限位斜面与上盖101接触，实现连接板601a转动的限位，使连接板601a与固定板601b成145度展开。The data analysis terminal module 6 uses a small notebook computer or an embedded microcomputer with a display function, and has a display screen for displaying test results, and an internal integrated computing hub for realizing the function of the data analysis terminal module. circuit board, as well as an external output interface and built-in power supply; at the same time, the data analysis terminal module 6 has embedded image processing algorithms and standard sample temperature characteristic database, and has an external I/O port required for exporting data at the bottom. The I/O port includes But not limited to USB2.0, USB3.0 and Type C. As shown in Figure 1, the data analysis terminal module with the above structure is installed on the upper cover 101 through a foldable bracket 601. The foldable bracket 601 includes a connecting plate 601a and a fixed plate 601b. Among them, the fixed plate 601b is fixedly installed on the inner wall of the upper cover 101 through screws, the bottom end of the connecting plate 601a and the side of the fixed plate 601b are connected through hinge pins, and the top end of the connecting plate 601a is connected to the hinge surface designed on the rear side of the data analysis terminal module 6 through the hinge pin. The hinge pins are all along the left and right directions of the upper cover 101, so that the data analysis terminal module 6 can rotate and fold freely and smoothly. The above-mentioned connecting plate 601a and the fixed plate 601b are hinged for a section and are designed with a limiting slope. Therefore, after the connecting plate 601a is unfolded, the limiting slope contacts the upper cover 101 to limit the rotation of the connecting plate 601a, so that the connecting plate 601a and the fixed plate are 601b unfolds at 145 degrees.
所述测温模块7为带有温度传感器的夹持器，用于夹住样品载物台5，实时记录样品载物台5上的样品表面温度。The temperature measurement module 7 is a holder with a temperature sensor, used to clamp the sample stage 5 and record the sample surface temperature on the sample stage 5 in real time.
所述数据时间同步功能模块8包括内嵌在恒温水浴箱202后侧夹层内的LoRa射频芯片801与3.8V移动电源802(如：充电宝)，且夹层侧面设计有可开合盖体，用于移动电源802的取出充电。如图5所示，LoRa射频芯片801的电源接口与3.8V移动电源802的输出接口相连，由3.8V移动电源802为LoRa供电。前述测温模块7通过导线接入LoRa射频芯片801的数据输入管脚(RXD)、高电平管脚(VCC)和接地管脚(GND)；红外热成像模块3中的数据采集模块通过传输导线连接LoRa射频芯片801的数据输入管脚(RXD)。LoRa射频芯片801还通过无线通讯协议与数据分析终端模块6实现实时数据传输。The data time synchronization function module 8 includes a LoRa radio frequency chip 801 and a 3.8V mobile power supply 802 (such as a power bank) embedded in the mezzanine on the back side of the constant temperature water bath 202, and the side of the mezzanine is designed with an openable and closable cover. Take out the mobile power supply 802 for charging. As shown in Figure 5, the power interface of the LoRa radio frequency chip 801 is connected to the output interface of the 3.8V mobile power supply 802, and the 3.8V mobile power supply 802 supplies power to LoRa. The aforementioned temperature measurement module 7 is connected to the data input pin (RXD), high level pin (VCC) and ground pin (GND) of the LoRa radio frequency chip 801 through wires; the data acquisition module in the infrared thermal imaging module 3 is connected through the transmission The wire is connected to the data input pin (RXD) of the LoRa radio frequency chip 801. LoRa radio frequency chip 801 also realizes real-time data transmission through wireless communication protocol and data analysis terminal module 6.
上述LoRa射频芯片用于接收由测温模块7测得的温度数据以及数据采集模块采集的图像数据同步发送至数据分析终端模块6；进一步经数据分析终端模块6进行处理后，实时成像于显示屏上；同时由数据分析终端模块6利用内置标准数据库比对温度分布特征，在显示屏上给出真伪判据结果。由此通过数据时间同步功能模块8，在检测样品被加热或制冷的过程中，可实现样品温度和红外热成像图随时间变化数据的实时监控。The above-mentioned LoRa radio frequency chip is used to receive the temperature data measured by the temperature measurement module 7 and the image data collected by the data acquisition module and synchronously send it to the data analysis terminal module 6; after further processing by the data analysis terminal module 6, real-time imaging is performed on the display screen At the same time, the data analysis terminal module 6 uses the built-in standard database to compare the temperature distribution characteristics, and provides the authenticity criterion result on the display screen. Therefore, through the data time synchronization function module 8, during the process of detecting that the sample is heated or cooled, real-time monitoring of the sample temperature and infrared thermography data over time can be realized.
所述电源模块4安装于下盒体101内部，位于恒温水浴箱右侧。电源模块4与红外热成像模块3、数据分析终端模块6以及温度控制部件203通过导线连接，实现供电。电源模块4采用锂电池供电，具有AC工频供电和便携式DC电源两种工作模式。The power module 4 is installed inside the lower box 101 and is located on the right side of the constant temperature water bath. The power supply module 4 is connected to the infrared thermal imaging module 3, the data analysis terminal module 6 and the temperature control component 203 through wires to realize power supply. The power module 4 is powered by a lithium battery and has two working modes: AC power supply and portable DC power supply.
本发明中为了排除外界光线对镜头301的干扰，保证检测结果的准确，设计了暗室9。如图6所示，暗室9为顶面具有开口的盖体，其横截面尺寸与恒温水浴箱202顶面开口尺寸相同；同时暗室相对两侧面靠近底边位置设计有L形挡板901，该L形挡板901与其所在暗室9侧面间共同构成U形槽结构，用来配合恒温水浴箱202顶面完成暗室9的安装，该U形槽901宽度等于恒温水浴箱202相对两侧面与恒温水浴箱202开口间的水平距离。在暗室9进行安装时，将暗室9底部插入恒温水浴箱202顶面开口内，同时由暗室9两侧的U形槽901插接于恒温水浴箱202侧壁与顶面开口间部分上，实现暗室9与恒温水浴箱202间的定位。上述暗室9上还安装有与暗室9内部相通的筒状结构镜头套筒902，两者间通过螺纹旋紧固定。镜头套筒902内径与镜头301外径匹配，用于插入镜头301，使镜头301位于暗室9内部，并由镜头301将镜头套筒901开口封闭，无光照入暗室9，如图7所示。In the present invention, in order to eliminate the interference of external light on the lens 301 and ensure the accuracy of the detection results, a darkroom 9 is designed. As shown in Figure 6, the darkroom 9 is a cover with an opening on the top surface, and its cross-sectional size is the same as the top opening size of the constant temperature water bath 202; at the same time, L-shaped baffles 901 are designed on the opposite sides of the darkroom near the bottom. The L-shaped baffle 901 and the sides of the darkroom 9 together form a U-shaped groove structure, which is used to complete the installation of the darkroom 9 with the top surface of the constant temperature water bath 202. The width of the U-shaped groove 901 is equal to the width of the opposite sides of the constant temperature water bath 202 and the constant temperature water bath. The horizontal distance between the openings of the boxes 202. When installing the darkroom 9, insert the bottom of the darkroom 9 into the top opening of the constant temperature water bath box 202, and at the same time, the U-shaped grooves 901 on both sides of the darkroom 9 are plugged into the part between the side wall and the top opening of the constant temperature water bath box 202 to achieve The positioning between the darkroom 9 and the constant temperature water bath 202. The above-mentioned darkroom 9 is also equipped with a cylindrical structure lens sleeve 902 that communicates with the inside of the darkroom 9, and the two are screwed and fixed by threads. The inner diameter of the lens sleeve 902 matches the outer diameter of the lens 301 and is used to insert the lens 301 so that the lens 301 is located inside the darkroom 9. The opening of the lens sleeve 901 is closed by the lens 301 so that no light enters the darkroom 9, as shown in Figure 7.
本发明中还在上盖101与下箱体102内设计了收纳结构，包括在上盖101上设计的隔热板收纳槽位、载物样品台收纳槽位、紫铜棒收纳槽位、温度控制部件收纳槽位、测温模块收纳弹性带，分别用于收纳隔热板204、载物样品台5、紫铜棒201、温度控制部件203以及测温模块7。对于暗室2的收纳，首先，旋下镜头套筒，竖直插入手提箱底面任意空位处设计的圆环形槽内，随后可直接将暗室2倒置后，由恒温水浴箱2顶面开口插入恒温水浴箱内，完成暗室2的收纳。由此可实现将本发明使用过程中各部件全部收纳于箱体内，便于整个装置的运输。In the present invention, a storage structure is also designed in the upper cover 101 and the lower box 102, including a heat insulation plate storage slot, a load sample stage storage slot, a copper rod storage slot, and a temperature control slot designed on the upper cover 101. The component storage slots and the temperature measurement module storage elastic belt are used to store the heat insulation plate 204, the sample stage 5, the copper rod 201, the temperature control component 203 and the temperature measurement module 7 respectively. To store the darkroom 2, first unscrew the lens sleeve and insert it vertically into the annular groove designed in any empty space on the bottom of the suitcase. Then you can directly turn the darkroom 2 upside down and insert the constant-temperature water bath box 2 through the top opening. In the water bath box, the storage of darkroom 2 is completed. In this way, all components during use of the present invention can be stored in the box, which facilitates the transportation of the entire device.
| Application Number | Priority Date | Filing Date | Title |
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| CN202011127535.7ACN112285108B (en) | 2020-10-20 | 2020-10-20 | A portable nondestructive detection device for interlayer adulteration of precious metals based on infrared thermal imaging technology |
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| CN202011127535.7ACN112285108B (en) | 2020-10-20 | 2020-10-20 | A portable nondestructive detection device for interlayer adulteration of precious metals based on infrared thermal imaging technology |
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| CN112285108A CN112285108A (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011127535.7AActiveCN112285108B (en) | 2020-10-20 | 2020-10-20 | A portable nondestructive detection device for interlayer adulteration of precious metals based on infrared thermal imaging technology |
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