CN111735873B - An online non-destructive testing device for carbon fiber composite mandrel and its application - Google Patents
An online non-destructive testing device for carbon fiber composite mandrel and its application Download PDFInfo
- Publication number
- CN111735873B CN111735873B CN202010445775.5A CN202010445775A CN111735873B CN 111735873 B CN111735873 B CN 111735873B CN 202010445775 A CN202010445775 A CN 202010445775A CN 111735873 B CN111735873 B CN 111735873B
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- fiber composite
- wheel
- mandrel
- box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 42
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 37
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 37
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000009659 non-destructive testing Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- 239000000523 sample Substances 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000012360 testing method Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 239000007822 coupling agent Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012422 test repetition Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/041—Analysing solids on the surface of the material, e.g. using Lamb, Rayleigh or shear waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0231—Composite or layered materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
本发明公开了一种碳纤维复合材料芯棒的在线无损检测装置，包括绝缘轨道式夹具、超声工作台、测距仪；所述的绝缘轨道式夹具为底面开口的中空盒体，所述盒体内设有若干用于夹持碳纤维复合材料芯棒的轮轨，所述超声工作台设置于盒体底面的上方，所述测距仪设置于盒体的侧面，所述的超声工作台包括可伸缩超声探头、耦合剂盒、波速计算模块、发信模块。本发明还公开了上述装置的应用。本发明利用超声波在铝绞线上的传播在线检测所测区段内是否存在芯棒断裂情况，成本更低且简单高效，可广泛应用在碳纤维材料芯棒的检测领域。
The invention discloses an online non-destructive testing device for a carbon fiber composite mandrel, comprising an insulating track fixture, an ultrasonic workbench, and a range finder; the insulating track fixture is a hollow box with an open bottom, and a plurality of wheel rails for clamping a carbon fiber composite mandrel are arranged in the box, the ultrasonic workbench is arranged above the bottom of the box, the rangefinder is arranged on the side of the box, and the ultrasonic workbench includes a retractable ultrasonic probe, a coupling agent box, a wave velocity calculation module, and a signal sending module. The invention also discloses the application of the above device. The present invention utilizes the propagation of ultrasonic wave on the aluminum stranded wire to detect on-line whether there is mandrel breakage in the measured section, has lower cost, is simple and efficient, and can be widely used in the detection field of carbon fiber material mandrels.
Description
技术领域technical field
本发明属于碳纤维复合材料芯棒的无损检测领域，具体涉及一种碳纤维复合材料芯棒的在线无损检测装置其应用。The invention belongs to the field of non-destructive testing of carbon fiber composite core rods, and in particular relates to an online non-destructive testing device for carbon fiber composite material core rods and its application.
背景技术Background technique
碳纤维复合材料导棒是用于电力传输领域的高压导线的重要材料，由于自身强度、刚度和环境适应性比较强等优点，可以在很大程度上减少远距离杆塔之间的输电线弧垂变形，同时其自身质量较轻、抗腐蚀能力强，故可作为钢芯的替代品，在输电领域有广阔的应用前景。Carbon fiber composite material guide rod is an important material for high-voltage wires in the field of power transmission. Due to its strong strength, rigidity and environmental adaptability, it can greatly reduce the sag deformation of transmission lines between long-distance towers.
碳纤维复合材料芯棒在输电线路上的应用有明显优势，但是也存在弊端。碳纤维复合材料会在承受一定载荷作用下产生脆性断裂，使得芯棒表面或内部损伤，严重者会使得芯棒断裂，也有的在施工架线过程中因施工或其他原因使得芯棒受损，从而产生对输电线路的安全隐患。The application of carbon fiber composite mandrels in transmission lines has obvious advantages, but there are also disadvantages. Carbon fiber composite materials will produce brittle fractures under a certain load, causing damage to the surface or interior of the mandrel. In severe cases, the mandrel will break, and some mandrels will be damaged due to construction or other reasons during the construction and wiring process, resulting in potential safety hazards to the transmission line.
现有技术中常用的高压输电线为多层结构，碳纤维复合材料芯棒外部有较厚的铝质绞线，一旦线路架设完成，芯棒将被铝绞线包裹，因此若芯棒出现一定问题，从外部很难发现。同时，若碳纤维复合材料芯棒断裂，则杆塔两端的作用力和输电线的自重载荷将全部受力于铝绞线上，使其内应力增加。芯棒是否断裂在绞线外部无法明显观察到，但铝绞线因为承受所有的作用力及自重载荷，再加上自然条件下的额外载荷，很容易产生弧垂、蠕变甚至断裂。The high-voltage transmission line commonly used in the prior art has a multi-layer structure. There are thicker aluminum stranded wires on the outside of the carbon fiber composite mandrel. Once the line is erected, the mandrel will be wrapped by the aluminum stranded wire. Therefore, if there is a certain problem with the mandrel, it is difficult to find it from the outside. At the same time, if the carbon fiber composite mandrel breaks, the force at both ends of the tower and the self-weight load of the transmission line will all be stressed on the aluminum strand, increasing its internal stress. Whether the mandrel is broken cannot be clearly observed outside the stranded wire, but the aluminum stranded wire is prone to sag, creep or even break because it bears all the forces and self-weight loads, plus the additional load under natural conditions.
目前国内外对于这种多层高压电输电线的检测研究和手段很少，很难满足高压输电线工作安全稳定、故障及时发现并反馈的需求。At present, there are few researches and methods on the detection of this kind of multi-layer high-voltage transmission lines at home and abroad, and it is difficult to meet the needs of high-voltage transmission lines for safe and stable operation, timely detection and feedback of faults.
发明内容Contents of the invention
本发明要解决的技术问题是提供一种快速、高效、环保的用于碳纤维复合材料芯棒的在线无损检测装置。The technical problem to be solved by the present invention is to provide a fast, efficient and environment-friendly online non-destructive testing device for carbon fiber composite mandrels.
本发明还要解决的技术问题是提供上述碳纤维复合材料芯棒的在线无损检测装置的应用。The technical problem to be solved by the present invention is to provide the application of the above-mentioned online non-destructive testing device for the carbon fiber composite mandrel.
为解决上述技术问题，本发明采用如下技术方案：In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:
一种碳纤维复合材料芯棒的在线无损检测装置，绝缘轨道式夹具、超声工作台、测距仪；所述的绝缘轨道式夹具为底面开口的中空盒体，所述盒体内设有若干用于夹持碳纤维复合材料芯棒的轮轨，所述超声工作台设置于盒体底面的上方，所述测距仪设置于盒体的侧面，所述的超声工作台包括可伸缩超声探头、耦合剂盒、波速计算模块、发信模块。所述的超声工作台是现有技术中已有的超声控制装置。An online non-destructive testing device for a carbon fiber composite mandrel, an insulated track fixture, an ultrasonic workbench, and a range finder; the insulated track fixture is a hollow box with an open bottom, and the box is provided with a number of wheel rails for clamping a carbon fiber composite mandrel, the ultrasonic workbench is set above the bottom of the box, and the rangefinder is set on the side of the box. The ultrasonic workbench is an existing ultrasonic control device in the prior art.
作为优选，所述的轮轨的数量为4个，所述轮轨呈对角线设置在绝缘轨道式夹具内部。轮轨的数目并不限于4个，轮轨的设置方法也不限制为对角线设置，只要能夹紧输电线即可。Preferably, the number of said wheel rails is four, and said wheel rails are arranged diagonally inside the insulating track-type fixture. The number of wheel rails is not limited to 4, and the setting method of the wheel rails is not limited to diagonal setting, as long as the transmission line can be clamped.
作为优选，所述中空盒体长10cm、宽15cm、高15cm。Preferably, the hollow box is 10 cm long, 15 cm wide, and 15 cm high.
作为优选，所述可伸缩超声波探头长15mm，宽10mm，高8mm，发射频率为5MHz的表面波。Preferably, the stretchable ultrasonic probe is 15 mm long, 10 mm wide, and 8 mm high, and emits surface waves with a frequency of 5 MHz.
作为优选，所述轮轨为球型轮，所述球型轮直径为2cm。Preferably, the wheel track is a spherical wheel, and the diameter of the spherical wheel is 2cm.
作为优选，所述轮轨包括上部轮轨和下部轮轨，所述的下部轮轨设置在绝缘轨道式夹具底面的开口处，所述的下部轮轨通过轮轨松紧装置与绝缘轨道式夹具连接。通过拧紧或松弛松紧装置可以控制绝缘轨道式夹具底面开口的大小，从而能将本发明安装到输电线上，开口宽度的可调节范围为2～8cmPreferably, the wheel track includes an upper wheel track and a lower wheel track, the lower wheel track is arranged at the opening of the bottom surface of the insulating track-type clamp, and the lower wheel track is connected to the insulating track-type clamp through a wheel-rail elastic device. The size of the opening on the bottom surface of the insulating rail clamp can be controlled by tightening or loosening the tightening device, so that the present invention can be installed on the transmission line, and the adjustable range of the opening width is 2-8cm
作为优选，所述的测距仪为红外测距仪，精度为2mm。Preferably, the rangefinder is an infrared rangefinder with an accuracy of 2mm.
一种碳纤维复合材料芯棒的在线无损检测方法，包括如下步骤：An online non-destructive testing method for a carbon fiber composite mandrel, comprising the steps of:
(1)安装碳纤维复合材料芯棒在线检测装置，控制一组碳纤维复合材料芯棒在线检测装置的轮轨夹紧输电线，在间距10m处固定另一组碳纤维复合材料芯棒在线检测装置夹紧输电线，两组碳纤维复合材料芯棒在线检测装置的测距仪相对设置；(1) Install the carbon fiber composite mandrel on-line detection device, control the wheel rail clamping power line of a group of carbon fiber composite mandrel on-line detection devices, fix another group of carbon fiber composite mandrel on-line detection devices to clamp the power line at a distance of 10m, and set the range finders of the two sets of carbon fiber composite mandrel on-line detection devices oppositely;
(2)控制超声工作台下放超声探头并穿过耦合剂盒，使超声波探头贴合铝绞线，记录超声波传播时间t并计算得到波速v；(2) Control the ultrasonic workbench to lower the ultrasonic probe and pass through the couplant box, so that the ultrasonic probe is attached to the aluminum strand, record the ultrasonic propagation time t and calculate the wave velocity v;
(3)将两组装置移动至下一测试点重复以上步骤进行检测；(3) Move the two sets of devices to the next test point and repeat the above steps for detection;
(4)比对各处波速值vi(i＝1,2,3……)，若某段处波速数值明显偏低于整体平均波速，则认为该区段为芯棒可疑断裂位置；(4) Comparing the wave velocity values v i (i=1, 2, 3...), if the wave velocity value at a certain section is obviously lower than the overall average wave velocity, then this section is considered to be the suspected fracture location of the mandrel;
(5)结束检测，回收装置。(5) End the detection and recover the device.
有益效果：Beneficial effect:
本发明公开了一种碳纤维复合材料芯棒的在线无损检测装置及其应用，避免了传统方法中的试验重复和资源浪费，提高了试验效率，节约了研究成本，更为高效、环保、易于操作。同时，本发明可简易判断碳纤维复合材料芯棒断裂的位置并在线监测及时反馈，实用性强、易于推广，可广泛应用于碳纤维复合材料芯棒的无损检测领域。The invention discloses an online non-destructive testing device for a carbon fiber composite mandrel and an application thereof, which avoids test repetition and resource waste in traditional methods, improves test efficiency, saves research costs, and is more efficient, environmentally friendly and easy to operate. Simultaneously, the present invention can simply judge the broken position of the carbon fiber composite material mandrel and provide online monitoring and timely feedback, has strong practicability and is easy to popularize, and can be widely used in the field of non-destructive testing of the carbon fiber composite material mandrel.
附图说明Description of drawings
图1为本发明安装于铝绞线上的轴向截面示意图。Fig. 1 is a schematic axial cross-sectional view of the present invention installed on an aluminum strand.
图2为一套两组装备搭载于铝绞线上的检测示意图。Figure 2 is a schematic diagram of the detection of a set of two sets of equipment mounted on aluminum strands.
图1～2中，1、碳纤维复合材料芯棒；2、铝绞线；3、绝缘轨道式夹具；4、超声工作台；5、可伸缩超声波探头；6、耦合剂盒；7、轮轨；8、轮轨松紧装置；9、测距仪。In Fig. 1-2, 1. Carbon fiber composite mandrel; 2. Aluminum stranded wire; 3. Insulated track fixture; 4. Ultrasonic workbench; 5. Retractable ultrasonic probe; 6. Couplant box; 7. Wheel rail; 8. Wheel rail elastic device;
具体实施方式Detailed ways
现结合附图和具体实施例对本发明进一步详细说明。这些附图均为简化的示意图，描述也只是为进一步说明本发明的特征和优点，而不是对本发明权利要求的限制。The present invention will now be described in further detail in conjunction with the accompanying drawings and specific embodiments. These drawings are all simplified schematic diagrams, and the description is only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the present invention.
实施例1Example 1
某50m JRLX/T-460复合导线芯棒的在线无损检测，其操作步骤如下：The online non-destructive testing of a 50m JRLX/T-460 composite conductor mandrel, the operation steps are as follows:
第一步、安装碳纤维复合材料芯棒在线检测装置，松开轮轨7的轮轨松紧装置8，将绝缘轨道式夹具人工地架于铝绞线上，控制开口宽度40mm以夹紧输电线，同时缩紧下部轮轨使整体设备可在铝绞线2上移动，如图1所示。使用测距仪9在间距10m处用同样方法固定另一组装备夹紧输电线，如图2所示；The first step is to install the carbon fiber composite material mandrel on-line detection device, loosen the wheel-rail elastic device 8 of the wheel-rail 7, manually set the insulating track-type clamp on the aluminum strand, control the opening width to 40mm to clamp the transmission line, and tighten the lower wheel rail at the same time so that the overall equipment can move on the aluminum strand 2, as shown in Figure 1. Use the rangefinder 9 to fix another set of equipment to clamp the transmission line at a distance of 10m in the same way, as shown in Figure 2;
第二步、控制超声工作台下放可伸缩超声探头5通过耦合剂盒6，并贴合铝绞线2，记录超声波传播时间t并计算得到波速v；The second step is to control the ultrasonic workbench to lower the retractable ultrasonic probe 5 through the coupling agent box 6, and attach the aluminum strand 2, record the ultrasonic propagation time t and calculate the wave velocity v;
第三步、将两组装置移动至下一10m测试区段重复以上步骤进行检测、记录、计算；The third step is to move the two sets of devices to the next 10m test section and repeat the above steps for detection, recording and calculation;
第四步、比对各处波速值v1，v2，v3，v4，v5，，波速数值偏小处所对应的区段即为该50m JRLX/T-460复合导线芯棒的断裂可疑处；The fourth step is to compare the wave velocity values v 1 , v 2 , v 3 , v 4 , v 5 , and the section corresponding to the small wave velocity value is the suspected breakage of the 50m JRLX/T-460 composite wire mandrel;
第五步、结束检测，回收装置。The fifth step is to end the detection and recover the device.
实施例2Example 2
某150m JRLX/T-460复合导线芯棒的在线无损检测，其操作步骤如下：The online non-destructive testing of a 150m JRLX/T-460 composite conductor mandrel, the operation steps are as follows:
第一步、安装碳纤维复合材料芯棒在线检测装置，松开轮轨7的轮轨松紧装置8，将绝缘轨道式夹具人工地架于铝绞线2上，控制开口宽度40mm以夹紧输电线，同时缩紧下部轮轨使整体设备可在铝绞线上移动，如图1所示。使用红外测距仪在间距10m处用同样方法固定另一组装备夹紧输电线，如图2所示；The first step is to install the carbon fiber composite mandrel on-line detection device, loosen the wheel rail elastic device 8 of the wheel rail 7, manually set the insulating rail clamp on the aluminum strand 2, control the opening width to 40mm to clamp the transmission line, and tighten the lower wheel rail at the same time so that the overall equipment can move on the aluminum strand, as shown in Figure 1. Use the infrared rangefinder to fix another set of equipment to clamp the transmission line at a distance of 10m in the same way, as shown in Figure 2;
第二步、控制超声工作台下放可伸缩超声探头5通过耦合剂盒6，并贴合铝绞线2，记录超声波传播时间t并计算得到波速v；The second step is to control the ultrasonic workbench to lower the retractable ultrasonic probe 5 through the coupling agent box 6, and attach the aluminum strand 2, record the ultrasonic propagation time t and calculate the wave velocity v;
第三步、将两组装置移动至下一10m测试区段重复以上步骤进行检测、记录、计算；The third step is to move the two sets of devices to the next 10m test section and repeat the above steps for detection, recording and calculation;
第四步、比对各处波速值vi(i＝1,2,3，……15)，波速数值偏小处所对应的区段即为该150mJRLX/T-460复合导线芯棒的断裂可疑处；The fourth step is to compare the wave velocity values v i (i=1, 2, 3, ... 15) at various places, and the section corresponding to the small wave velocity value is the suspicious fracture of the 150mJRLX/T-460 composite wire mandrel;
第五步、结束检测，回收装置。The fifth step is to end the detection and recover the device.
实施例3Example 3
某50m ACCC/TW复合导线芯棒的在线无损检测，其操作步骤如下：On-line non-destructive testing of a 50m ACCC/TW composite conductor mandrel, the operation steps are as follows:
第一步、安装碳纤维复合材料芯棒在线检测装置，松开轮轨7的轮轨松紧装置8，将绝缘轨道式夹具人工地架于铝绞线2上，控制开口宽度20mm以夹紧输电线，同时缩紧下部轮轨使整体设备可在铝绞线上移动，如图1所示。使用红外测距仪在间距10m处用同样方法固定另一组装备夹紧输电线，如图2所示；The first step is to install the carbon fiber composite material mandrel on-line detection device, loosen the wheel rail elastic device 8 of the wheel rail 7, manually set the insulating rail clamp on the aluminum strand 2, control the opening width to 20mm to clamp the transmission line, and tighten the lower wheel rail at the same time so that the overall equipment can move on the aluminum strand, as shown in Figure 1. Use the infrared rangefinder to fix another set of equipment to clamp the transmission line at a distance of 10m in the same way, as shown in Figure 2;
第二步、控制超声工作台下放可伸缩超声探头5通过耦合剂盒6，并贴合铝绞线2，记录超声波传播时间t并计算得到波速v；The second step is to control the ultrasonic workbench to lower the retractable ultrasonic probe 5 through the coupling agent box 6, and attach the aluminum strand 2, record the ultrasonic propagation time t and calculate the wave velocity v;
第三步、将两组装置移动至下一10m测试区段重复以上步骤进行检测、记录、计算；The third step is to move the two sets of devices to the next 10m test section and repeat the above steps for detection, recording and calculation;
第四步、比对各处波速值v1，v2，v3，v4，v5，，波速数值偏小处所对应的区段即为该50m ACCC/TW复合导线芯棒的断裂可疑处；The fourth step is to compare the wave velocity values v 1 , v 2 , v 3 , v 4 , v 5 , and the section corresponding to the small wave velocity value is the suspected breakage of the 50m ACCC/TW composite conductor core rod;
第五步、结束检测，回收装置。The fifth step is to end the detection and recover the device.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010445775.5A CN111735873B (en) | 2020-05-25 | 2020-05-25 | An online non-destructive testing device for carbon fiber composite mandrel and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010445775.5A CN111735873B (en) | 2020-05-25 | 2020-05-25 | An online non-destructive testing device for carbon fiber composite mandrel and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111735873A CN111735873A (en) | 2020-10-02 |
| CN111735873B true CN111735873B (en) | 2023-07-21 |
Family
ID=72647711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010445775.5A Active CN111735873B (en) | 2020-05-25 | 2020-05-25 | An online non-destructive testing device for carbon fiber composite mandrel and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111735873B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251883A (en) * | 2013-06-28 | 2014-12-31 | 中国石油化工股份有限公司 | Non-contact rock sound wave speed detection method |
| CN107907597B (en) * | 2017-11-27 | 2024-03-15 | 山东大学 | Device and method for testing water content of penetrating ultrasonic soil body |
| CN110125903B (en) * | 2019-05-14 | 2021-04-13 | 国网江苏省电力有限公司电力科学研究院 | Four-split carbon fiber wire inspection robot and system |
| CN110596244A (en) * | 2019-09-29 | 2019-12-20 | 同济大学 | An ultrasonic flaw detection device and method for a cable-stayed cable |
-
2020
- 2020-05-25 CN CN202010445775.5A patent/CN111735873B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111735873A (en) | 2020-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6305450B2 (en) | Wind power generator blade and wind power generator blade inspection method | |
| CN106680380A (en) | System for nondestructive detection on defects of prestress steel strand through ultrasonic guided waves and detection method | |
| CN102721501B (en) | Experimental method for measuring distribution of breaking longitudinal force of steel rail of railway | |
| CN103940893B (en) | Device and method for monitoring corrosion defects of anchorage section of stay rope | |
| CN110745160B (en) | Real-time detection and alarm system and method for fracture damage of switch blade of railway switch | |
| WO2021031661A1 (en) | Beidou-based bridge safety monitoring device | |
| CN104698087A (en) | Prestressed duct slurry stripping degree detecting device and method based on recursive singular entropy | |
| CN104897776A (en) | Vibration acoustic wave based charged flaw detection device and method for porcelain post insulator | |
| CN207689438U (en) | Supersonic guide-wave angle probe for rail examination | |
| CN111735873B (en) | An online non-destructive testing device for carbon fiber composite mandrel and its application | |
| CN209342231U (en) | Transformer vibration and noise combined monitoring equipment | |
| CN108088913A (en) | For the piezoelectric supersonic guided wave probe of rail flange of rail flaw detection and its method of detection | |
| EP2621753B1 (en) | Monitoring device for a catenary system of an overhead line installation | |
| CN104374651A (en) | Device and method for detecting transformer substation post insulator strength | |
| CN105466784A (en) | Model test device for high-pressure gas transmission metal tube air-pressure bursting tests and method thereof | |
| CN205865766U (en) | Ultrasonic inspection's bird repellent device can carry out | |
| Burger et al. | Large scale implementation of guided wave based broken rail monitoring | |
| CN101982765A (en) | Method and device for on-line detecting iced and damaged transmission line based on elastic wave | |
| CN107589176A (en) | A kind of detection method of insulator ultrasonic wave detecting system and the application system | |
| CN102384940A (en) | Insulator fault detector | |
| CN105301439B (en) | A kind of method for rapidly positioning of overhead transmission line earth fault | |
| CN203101153U (en) | Auxiliary device for vibration testing of supporting insulator | |
| CN201309492Y (en) | Integrated railroad wheel on-line track detection device | |
| JP2018053900A (en) | Blade for wind power generator and method for inspecting blade for wind power generator | |
| CN204203012U (en) | A kind of transformer station support insulator intensity detecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |