CN105486716A - Active infrared nondestructive test unmanned plane system - Google Patents
Active infrared nondestructive test unmanned plane system Download PDFInfo
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- CN105486716A CN105486716A CN201510840463.3A CN201510840463A CN105486716A CN 105486716 A CN105486716 A CN 105486716A CN 201510840463 A CN201510840463 A CN 201510840463A CN 105486716 A CN105486716 A CN 105486716A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
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Abstract
The invention discloses an active infrared nondestructive test unmanned plane system and belongs to the field of a nondestructive test on a large complex member such as an aerospace structural component. The system solves the problem that the aerospace structural component has a large volume and a complex structure so that manual climbing checking efficiency is low and potential safety hazard exists. The system comprises an unmanned plane main body, an unmanned plane mounted monitoring module is arranged on the unmanned plane main body, a ground-based computer transmits a position instruction in a wireless way to control the unmanned plane main body so that the unmanned plane main body is moved to a certain position on the outer surface of a tested object, a data acquisition card controls a modulating signal and power of a laser according to an acquisition instruction, light beams transmitted through the laser go through optical fibers, are collimated through a collimating lens and irradiate the outer surface of the tested object, an infrared camera acquires an image sequence and the ground-based computer carries out phase locking operation on the acquired image sequence and a reference signal so that a thermal radiation signal amplitude image and a phase image of the tested object are obtained and defect types and positions are obtained.
Description
Technical field
The present invention relates to a kind of unmanned plane detecting aerospace structure, belong to the field of non destructive testing of the complex large-scale components such as aerospace structure part.
Background technology
Along with the development of Aeronautics and Astronautics manufacturing technology, compound substance obtains with its high specific strength, specific stiffness and good fatigue resistence and corrosion resistance and applies widely.But compound substance has a strong impact on because foozle and the defect that produced by the factor such as load, vibration can produce the performance of aerospace structure part, therefore realizes the efficient on-line checkingi of aerospace structure part particularly important.Aerospace structure part volume is bigger than normal, complex structure, and personnel ascend a height, and in person to check efficiency low and leave hidden danger to safety.
Summary of the invention
The present invention seeks to solve aerospace structure part volume bigger than normal, complex structure, personnel ascend a height, and in person to check efficiency low and leave the problem of hidden danger to safety, provides a kind of active infra-red Non-Destructive Testing UAS.
Active infra-red Non-Destructive Testing UAS of the present invention, comprise unmanned plane body, unmanned plane body arranges unmanned plane carry monitoring modular, the instruction acquisition measured body outside surface infrared image that unmanned plane carry monitoring modular sends according to ground computer radio, the infrared image gathered feeds back to ground-based computer, and then judges defect type and the position of measured body outside surface;
Described unmanned plane carry monitoring modular comprises power supply, infrared camera, laser instrument, data collecting card, launched by airplane/receiver module, optical fiber and collimating mirror; Power supply is infrared camera, laser instrument, data collecting card and launched by airplane/receiver module provide working power;
Ground-based computer sends position command by ground launch/receiver module and controls a certain particular location that unmanned plane body moves to measured body outside surface; Simultaneously, ground-based computer sends acquisition instructions by ground launch/receiver module, data collecting card receives this acquisition instructions by launched by airplane/receiver module, data collecting card controls modulation signal and the power of laser instrument according to acquisition instructions, the light beam that laser instrument is launched by optical fiber, and impinges upon the outside surface of measured body after the process of collimating mirror collimation; Data collecting card triggers infrared camera according to acquisition instructions and carries out image sequence acquisition;
The image sequence of infrared camera collection feeds back to ground-based computer, and the image sequence collected and reference signal are done phase-locked computing by ground-based computer, obtains optical heat radiation signal amplitude figure and the phase diagram of measured body;
Repeat the position changing unmanned plane body, gather the image sequence of measured body outside surface comprehensively, obtain its defect type and position by the optical heat radiation signal amplitude figure in each region that obtains and phase diagram.
Advantage of the present invention: the present invention adopts active infra-red Non-Destructive Testing UAS, as long as get final product close-ups at ground control unmanned plane, and this unmanned plane is loaded with laser instrument and Infrared imaging cameras, active excitation can be carried out to component, and infrared image is reached in computer, the defects detection of equipment can be realized efficiently and accurately, ensured the stable operation of aerospace equipment and the safety of personnel.The present invention can realize the online Infrared Non-destructive Testing in high-altitude, the complete not damaged of exemplar, noncontact, substantially increases detection efficiency and the accuracy of Aero-Space large-sized structural parts; The present invention adopts active infra-red Non-Destructive Testing UAS, can realize the high resolution identification of defect type and position by carrying out active light source excitation to exemplar.
Accompanying drawing explanation
Fig. 1 is the theory diagram of active infra-red Non-Destructive Testing UAS of the present invention.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, active infra-red Non-Destructive Testing UAS described in present embodiment, comprise unmanned plane body, unmanned plane body arranges unmanned plane carry monitoring modular 2, unmanned plane carry monitoring modular 2 is according to the instruction acquisition measured body 1 outside surface infrared image of ground-based computer 10 wireless transmission, the infrared image gathered feeds back to ground-based computer 10, and then judges defect type and the position of measured body 1 outside surface;
Described unmanned plane carry monitoring modular 2 comprises power supply 3, infrared camera 4, laser instrument 5, data collecting card 6, launched by airplane/receiver module 7, optical fiber 8 and collimating mirror 9; Power supply 3 is infrared camera 4, laser instrument 5, data collecting card 6 and launched by airplane/receiver module 7 provide working power;
Ground-based computer 10 sends position command by ground launch/receiver module 11 and controls a certain particular location that unmanned plane body moves to measured body 1 outside surface; Simultaneously, ground-based computer 10 sends acquisition instructions by ground launch/receiver module 11, data collecting card 6 receives this acquisition instructions by launched by airplane/receiver module 7, data collecting card 6 controls modulation signal and the power of laser instrument 5 according to acquisition instructions, the light beam that laser instrument 5 is launched by optical fiber 8, and collimates through collimating mirror 9 outside surface impinging upon measured body 1 after process; Data collecting card 6 triggers infrared camera 4 according to acquisition instructions and carries out image sequence acquisition;
The image sequence that infrared camera 4 gathers feeds back to ground-based computer 10, and the image sequence collected and reference signal are done phase-locked computing by ground-based computer 10, obtain optical heat radiation signal amplitude figure and the phase diagram of measured body 1;
Repeat the position changing unmanned plane body, gather the image sequence of measured body 1 outside surface comprehensively, obtain its defect type and position by the optical heat radiation signal amplitude figure in each region that obtains and phase diagram.
Infrared camera 4 is arranged on the upper surface of laser instrument 5, and the Laser emission end face of the camera lens of infrared camera 4 and laser instrument 5 is to same position.
Launched by airplane/receiver module 7 is identical with the structure of ground launch/receiver module 11, and is all provided with antenna.
Present embodiment scheme is based on light-heat radiation survey (Photothermalradiometry, PTR) principle, ground-based computer 10 passes through signal end (airborne reception/transmitter module 7, ground receiver/transmitter module 11) by triggering signal transmissions in data collecting card 6, and producing modulating frequency is
fmodulation signal, modulation signal controls laser instrument 5 by BNC data line, laser instrument 5 by optical fiber 8, to converge to measured body 1 surface through collimating mirror 9, owing to there is photo-thermal effect after the laser of modulation variation is irradiated to measured body 1, there is temperature fluctuation and infrared radiation in measured body 1, optical heat radiation signal is relevant to exemplar Photothermal characterisation parameter, and signal is gathered by infrared camera 4, synthetic image sequence, image sequence and the frequency of acquisition are all
freference signal do phase-locked computing, the method can realize the high resolution detection to measured body 1 defect.
Concrete implementation step is as follows:
Step 1, determine the aerospace equipment exemplar that will measure;
Step 2, unlatching ground-based computer 10 and ground receiver/transmitter module 11;
Step 3, unlatching active infra-red Non-Destructive Testing UAS, this step comprises the unlatching of the equipment such as infrared camera 4, laser instrument 5, airborne reception/transmitter module 7, data collecting card 6;
Step 4, by ground signal end manipulation UAS to detecting position accordingly;
Step 5, use infrared camera 4 carry out imaging, and this step needs adjustment infrared camera 4 focal length, can carry out imaging clearly to make thermal infrared imager to sample;
The built-in control software design of step 6, ground-based computer 10 arranges the modulation signal of laser instrument 5
f, power, simultaneously trigger infrared camera 4 carry out image sequence acquisition;
The image sequence collected and reference signal are done phase-locked computing by the built-in control software design of step 7, ground-based computer 10, thus obtain exemplar optical heat radiation signal amplitude figure and phase diagram;
Step 8, manipulation UAS detect position to another;
Step 9, repetition step 5-step 7.
Complete and adopt active infra-red Non-Destructive Testing UAS to the testing process of exemplar.
Claims (3)
1. active infra-red Non-Destructive Testing UAS, comprise unmanned plane body, it is characterized in that, unmanned plane body arranges unmanned plane carry monitoring modular 2, unmanned plane carry monitoring modular 2 is according to the instruction acquisition measured body 1 outside surface infrared image of ground-based computer 10 wireless transmission, the infrared image gathered feeds back to ground-based computer 10, and then judges defect type and the position of measured body 1 outside surface;
Described unmanned plane carry monitoring modular 2 comprises power supply 3, infrared camera 4, laser instrument 5, data collecting card 6, launched by airplane/receiver module 7, optical fiber 8 and collimating mirror 9; Power supply 3 is infrared camera 4, laser instrument 5, data collecting card 6 and launched by airplane/receiver module 7 provide working power;
Ground-based computer 10 sends position command by ground launch/receiver module 11 and controls a certain particular location that unmanned plane body moves to measured body 1 outside surface; Simultaneously, ground-based computer 10 sends acquisition instructions by ground launch/receiver module 11, data collecting card 6 receives this acquisition instructions by launched by airplane/receiver module 7, data collecting card 6 controls modulation signal and the power of laser instrument 5 according to acquisition instructions, the light beam that laser instrument 5 is launched by optical fiber 8, and collimates through collimating mirror 9 outside surface impinging upon measured body 1 after process; Data collecting card 6 triggers infrared camera 4 according to acquisition instructions and carries out image sequence acquisition;
The image sequence that infrared camera 4 gathers feeds back to ground-based computer 10, and the image sequence collected and reference signal are done phase-locked computing by ground-based computer 10, obtain optical heat radiation signal amplitude figure and the phase diagram of measured body 1;
Repeat the position changing unmanned plane body, gather the image sequence of measured body 1 outside surface comprehensively, obtain its defect type and position by the optical heat radiation signal amplitude figure in each region that obtains and phase diagram.
2. active infra-red Non-Destructive Testing UAS according to claim 1, it is characterized in that, infrared camera 4 is arranged on the upper surface of laser instrument 5, and the Laser emission end face of the camera lens of infrared camera 4 and laser instrument 5 is to same position.
3. active infra-red Non-Destructive Testing UAS according to claim 1, it is characterized in that, launched by airplane/receiver module 7 is identical with the structure of ground launch/receiver module 11, and is all provided with antenna.
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| CN201510840463.3A CN105486716A (en) | 2015-11-27 | 2015-11-27 | Active infrared nondestructive test unmanned plane system |
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| CN106018417A (en) * | 2016-06-27 | 2016-10-12 | 深圳大学 | External wall defect detection method and system |
| CN106932411A (en) * | 2017-04-06 | 2017-07-07 | 侯思明 | A kind of equipment detection method and device for being applied to thermal power plant |
| CN107380420A (en) * | 2017-08-23 | 2017-11-24 | 南京市特种设备安全监督检验研究院 | A kind of vibrative mechanism detection means and method based on unmanned plane mechanical arm |
| CN109696457A (en) * | 2019-01-10 | 2019-04-30 | 华南理工大学 | Active infrared thermal wave detection method and system towards the damage of glass curtain wall cementing structure |
| CN110231365A (en) * | 2019-07-16 | 2019-09-13 | 中能电力科技开发有限公司 | A kind of wind generator set blade nondestructive detection system based on infrared thermal wave |
| CN116106705A (en) * | 2023-04-12 | 2023-05-12 | 中国空气动力研究与发展中心低速空气动力研究所 | Plasma exciter real-time monitoring device and method for unmanned aerial vehicle flight verification |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN107380420A (en) * | 2017-08-23 | 2017-11-24 | 南京市特种设备安全监督检验研究院 | A kind of vibrative mechanism detection means and method based on unmanned plane mechanical arm |
| CN109696457A (en) * | 2019-01-10 | 2019-04-30 | 华南理工大学 | Active infrared thermal wave detection method and system towards the damage of glass curtain wall cementing structure |
| WO2020143136A1 (en) * | 2019-01-10 | 2020-07-16 | 华南理工大学 | Active infrared thermal detection method for damage in bonding structure of glass curtain wall and system for same |
| CN110231365A (en) * | 2019-07-16 | 2019-09-13 | 中能电力科技开发有限公司 | A kind of wind generator set blade nondestructive detection system based on infrared thermal wave |
| CN116106705A (en) * | 2023-04-12 | 2023-05-12 | 中国空气动力研究与发展中心低速空气动力研究所 | Plasma exciter real-time monitoring device and method for unmanned aerial vehicle flight verification |
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Application publication date: 20160413 |