CN102121897B - Non-contact damage detection device of carbon fiber sucker rod - Google Patents
Non-contact damage detection device of carbon fiber sucker rod Download PDFInfo
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- CN102121897B CN102121897B CN 201010596351 CN201010596351A CN102121897B CN 102121897 B CN102121897 B CN 102121897B CN 201010596351 CN201010596351 CN 201010596351 CN 201010596351 A CN201010596351 A CN 201010596351A CN 102121897 B CN102121897 B CN 102121897B
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Abstract
The invention relates to a non-contact damage detection device of a carbon fiber sucker rod. The non-contact damage detection device is characterized by comprising a light source (1), double convex lenses (2), a micropore (3), double convex lenses (4) and a spectroscope (5) are sequentially arranged along the light path direction of light emitted by the light source (1), wherein the emitting end of one side of the spectroscope (5) is provided with the carbon fiber sucker rod (6), and the emitting end of the other side of the spectroscope (5) is provided with a reference mirror (11); the interference output end of the spectroscope (5) is provided with double convex lenses (15); the double convex lenses (15) transmit optical signals to a spectrograph (18) through optical fibers (17); and the output end of the spectrograph (18) is connected with a computer (19) with a data acquisition and processing system through a communication bus. The non-contact damage detection device can measure the tiny damage of the surface or the near surface of the carbon fiber sucker rod (6) and has high measurement accuracy capable of reaching a submicron grade.
Description
Technical field
The invention belongs to material properties test and structural damage detection technical field, particularly the contactless damage detection apparatus of carbon fibre pumping rod.
Background technology
Sucker rod pumping is the outer most widely used production on artificial lift technology of Present Domestic.Because the impact of the factors such as sole mass of well depth and steel sucker rod is lowered production on artificial lift efficient greatly, account for the 60%-70% of well on the beam accident because of the not enough accident number of times that causes of oil pumping beam hanger self.In addition, the traditional metal sucker rod has become " bottleneck " of this oil production method development of restriction and growth because own wt is large, perishable, fatigue behaviour is relatively poor etc. shortcoming.Carbon-fiber continuous rod has lightweight, high strength, high rigidity, high temperature resistant, corrosion-resistant, the wear-resisting characteristics that undermine structure-function integration, and oil-production efficiency is greatly improved, and accident rate is also than greatly reducing with traditional sucker rod.The carbon fiber bar is a kind of very promising special type sucker rod.
For carbon fibre composite in the mill defective and the damage in the use procedure, domestic mainly is to carry out Non-Destructive Testing with technology such as ultrasound wave, X ray, thermal infrared ripples.Ultrasonic C-Scan can detect most of Dangerous defects such as layering in the material, loose, hole reliably, but detection efficiency is lower, and detection resolution can only reach about 100 microns.Ultrasonic Detection is the detection method of contact in addition, and it need to be filled probe and be examined space between the surface with couplant, to guarantee sufficient acoustic coupling.X ray is not subjected to materials limitations, can penetrate test specimen and obtain intuitively image of defective (pore, slag inclusion etc.), and quantitative test is more accurate, but it has the biological effects of radiation, and its security needs to consider.Infrared thermal wave NDT is that test material is carried out the active heating, utilize tested material internal thermal property difference, the heat conducting discontinuous difference that is reflected in the body surface temperature, the radiation profiles of surveying tested test specimen by thermal infrared imager goes out the inherent vice situation with regard to deducibility.This method detection speed is fast, and the observation area is large, but error large (about 200 microns) when measuring defect size.In addition because thermal map to the heteropical sensitivity of material, also can cause erroneous judgement to some test specimen defective.
In sum, still there is not a kind of detection method can very accurately detect surface or nearly the interior surface structure, particularly micron-sized damage check of carbon fibre pumping rod in China so far.
Summary of the invention
The object of the present invention is to provide a kind of non-contact damage detection device of carbon fibre pumping rod, this device can be measured carbon fibre pumping rod surface or the small damage in nearly surface, and measuring accuracy is high, can reach the sub-micron rank.
Technical program of the present invention lies in: a kind of non-contact damage detection device of carbon fibre pumping rod, it is characterized in that: comprise light source (1), described light source (1) emergent light is along being provided with successively biconvex lens (2) on the optical path direction, aperture (3), biconvex lens (4) and spectroscope (5), described spectroscope (5) one side exit ends are provided with carbon fibre pumping rod to be detected (6), described spectroscope (5) opposite side exit end is provided with reference mirror (11), the interference output terminal of described spectroscope (5) is provided with biconvex lens (15), described biconvex lens (15) is passed to spectrometer (18) through optical fiber (17) with light signal, and the output terminal process communication bus of described spectrometer (18) links to each other with the computer (19) with the data acquisition and processing (DAP) system.
Described carbon fibre pumping rod (6) to be detected is arranged in the bearing (7) that rotation motor drives, and institute's rotation motor is by rotation motor controller (8) control rotation, and described rotation motor controller (8) links to each other with computer (19).
Described bearing (7) is located on the horizontal shifting platform (9), and described horizontal shifting platform (9) is mobile by horizontal shifting platform controller (10) control, and described horizontal shifting platform controller (10) links to each other with computer (19).
Described reference mirror (11) is located on the PZT motor (12), and described PZT motor is by NI card (13) controlled motion, and described NI card (13) links to each other with computer (19).
Described PZT motor is located on the manual moving platform (14).
Described light source is visible light source or near-infrared light source, and described spectroscope corresponds to visible light light-splitting mirror or infrared spectroscopy, and described spectrometer corresponds to visible-range spectrometer or infrared spectrometer.
Described optical fiber (17) is positioned at lens (15) one ends and is provided with holder (16).
The invention has the advantages that: with traditional methods such as Ultrasonic Detection, infrared thermal wave and acoustic emission comparatively speaking, it is high that the present invention has higher accuracy of detection, can reach submicron order, be suitable for the detection of the early stage tiny flaw in carbon fibre pumping rod surface or nearly surface; Be safe to human body in the use procedure of this invention in addition, do not have the biological effects of radiation of picture X ray.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is control flow synoptic diagram of the present invention.
Embodiment
A kind of non-contact damage detection device of carbon fibre pumping rod, it is characterized in that: comprise light source (1), described light source (1) emergent light is along being provided with successively biconvex lens (2) on the optical path direction, aperture (3), biconvex lens (4) and spectroscope (5), described spectroscope (5) one side exit ends are provided with carbon fibre pumping rod to be detected (6), described spectroscope (5) opposite side exit end is provided with reference mirror (11), the interference output terminal of described spectroscope (5) is provided with biconvex lens (15), described biconvex lens (15) is passed to spectrometer (18) through optical fiber (17) with light signal, and the output terminal process communication bus of described spectrometer (18) links to each other with the computer (19) with the data acquisition and processing (DAP) system.
Described carbon fibre pumping rod (6) to be detected is arranged in the bearing (7) that rotation motor drives, and institute's rotation motor is by rotation motor controller (8) control rotation, and described rotation motor controller (8) links to each other with computer (19).
Described bearing (7) is located on the horizontal shifting platform (9), and described horizontal shifting platform (9) is mobile by horizontal shifting platform controller (10) control, and described horizontal shifting platform controller (10) links to each other with computer (19).
Described reference mirror (11) is located on the PZT motor (12), and described PZT motor is by NI card (13) controlled motion, and described NI card (13) links to each other with computer (19).
Described PZT motor is located on the manual moving platform (14).
Described light source is visible light source or near-infrared light source, and described spectroscope corresponds to visible light light-splitting mirror or infrared spectroscopy, and described spectrometer corresponds to visible-range spectrometer or infrared spectrometer.
Described optical fiber (17) is positioned at lens (15) one ends and is provided with holder (16).
The course of work of the present invention is as follows: light source (1) can be near infrared or visible light, the light that it sends is divided into two-way light through lens one (2), aperture (3), lens two (4) and spectroscope (5), wherein one the tunnel shine reference mirror (11), reference mirror is installed on the PZT motor (12), the phase shift that is intended to realize 1/4 wavelength reaches to be eliminated from coherent signal and increases the purpose of system signal noise ratio, the motion control of PZT motor is to be realized through NI card (13) by computer (19), and an other light path shines on the carbon fibre pumping rod (6).Reflect/scatter occurs respectively and is interfered and received spectrometer (18) input end through this optical fiber by spectroscopical fiber-optic output in two-beam on reference mirror and carbon fibre pumping rod surface, the output terminal of spectrometer is sent to computer (19) with the data acquisition and processing (DAP) system by communication bus with spectral signal, and carbon fibre pumping rod (6) is installed on the bearing (7) that rotation motor drives.Wherein, the movement of automated movement platform (9) horizontal direction, and the rotation of the bearing (7) that drives with rotation motor is so that this device can be realized carbon fibre pumping rod axially and radially surface or nearly surface damage scanning.
Its concrete control flow when beginning to detect, sends signal by computing machine to the horizontal shifting platform controller as shown in Figure 2, and horizontal shifting platform controller control horizontal shifting platform is determined the axial location that sucker rod begins to scan; Send signal by computing machine to the rotation motor controller, the radial position that sucker rod begins to scan is determined in the rotation of rotation motor controller control rotation motor; Computing machine sends the data acquisition instruction to spectrometer, begins to gather the first paragraph spectral signal; Computing machine sends control signal through the NI card to the PZT motor, makes PZT motor driving reference mirror change in location, thereby realizes the phase shift of reference mirror 1/4 wavelength; This computer-chronograph sends the data acquisition instruction to spectrometer, gathers the second segment spectral signal; Utilize phase-shift method and above-mentioned two sections spectral signals are done the information that Fourier transform obtains sucker rod surface and nearly case depth direction, inquire whether the user needs to continue other points of scanning this moment, if need to repeat above-mentioned scanning process, if do not need to continue scanning, then with the data of the nearly case depth direction of a series of carbon fibre pumping rods of gained, utilize image reconstruction algorithm, obtain the rear nearly surface structure figure in surface of carbon fibre pumping rod.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (1)
1. the non-contact damage detection device of a carbon fibre pumping rod, it is characterized in that: comprise light source (1), described light source (1) emergent light is along being provided with successively biconvex lens (2) on the optical path direction, aperture (3), biconvex lens (4) and spectroscope (5), described spectroscope (5) one side exit ends are provided with carbon fibre pumping rod to be detected (6), described spectroscope (5) opposite side exit end is provided with reference mirror (11), the interference output terminal of described spectroscope (5) is provided with biconvex lens (15), described biconvex lens (15) is passed to spectrometer (18) through optical fiber (17) with light signal, the output terminal process communication bus of described spectrometer (18) links to each other with the computer (19) with the data acquisition and processing (DAP) system, described carbon fibre pumping rod (6) to be detected is arranged in the bearing (7) that rotation motor drives, institute's rotation motor is by rotation motor controller (8) control rotation, described rotation motor controller (8) links to each other with computer (19), described bearing (7) is located on the horizontal shifting platform (9), described horizontal shifting platform (9) is mobile by horizontal shifting platform controller (10) control, described horizontal shifting platform controller (10) links to each other with computer (19), described reference mirror (11) is located on the PZT motor (12), described PZT motor is by NI card (13) controlled motion, described NI card (13) links to each other with computer (19), and described PZT motor is located on the manual moving platform (14); Described light source is visible light source or near-infrared light source, and described spectroscope corresponds to visible light light-splitting mirror or infrared spectroscopy, and described spectrometer corresponds to visible-range spectrometer or infrared spectrometer; Described optical fiber (17) is positioned at lens (15) one ends and is provided with holder (16).
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| CN 201010596351 CN102121897B (en) | 2010-12-20 | 2010-12-20 | Non-contact damage detection device of carbon fiber sucker rod |
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| CN 201010596351 CN102121897B (en) | 2010-12-20 | 2010-12-20 | Non-contact damage detection device of carbon fiber sucker rod |
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| CN102121897A CN102121897A (en) | 2011-07-13 |
| CN102121897B true CN102121897B (en) | 2013-10-30 |
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| CN106092903B (en) * | 2016-07-21 | 2021-11-05 | 国网河南省电力公司周口供电公司 | Carbon fiber composite core wire inspection device and using method thereof |
| CN109917021B (en) * | 2017-12-12 | 2024-04-05 | 中国石油化工股份有限公司 | Acoustic emission source positioning method for carbon fiber continuous sucker rod in storage coiling state |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073007A (en) * | 1991-09-06 | 1993-06-09 | 联邦科学及工业研究组织 | Optical means and device |
| EP1887312A1 (en) * | 2006-07-28 | 2008-02-13 | Heliotis AG | Imaging optical coherence tomography with dynamic coherent Focus |
| EP2243420A1 (en) * | 2009-04-24 | 2010-10-27 | Schmidt-Erfurth, Ursula | Method for determining exudates in the retina |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101907485B (en) * | 2010-08-25 | 2012-07-25 | 福州大学 | Non-contact structure micro-vibration monitoring device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073007A (en) * | 1991-09-06 | 1993-06-09 | 联邦科学及工业研究组织 | Optical means and device |
| EP1887312A1 (en) * | 2006-07-28 | 2008-02-13 | Heliotis AG | Imaging optical coherence tomography with dynamic coherent Focus |
| EP2243420A1 (en) * | 2009-04-24 | 2010-10-27 | Schmidt-Erfurth, Ursula | Method for determining exudates in the retina |
Non-Patent Citations (1)
| Title |
|---|
| 孙创伟.基于成像光谱仪的线聚焦频域OCT的研究.《中国优秀硕士学位论文全文数据库》.2009,第7、39-45页. * |
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