CN106525959B - Pulse vortex positioning detector - Google Patents
Pulse vortex positioning detector Download PDFInfo
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- CN106525959B CN106525959B CN201610931272.2A CN201610931272A CN106525959B CN 106525959 B CN106525959 B CN 106525959B CN 201610931272 A CN201610931272 A CN 201610931272A CN 106525959 B CN106525959 B CN 106525959B
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- opening
- box body
- plane mirror
- positioning
- optical sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9013—Arrangements for scanning
- G01N27/902—Arrangements for scanning by moving the sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention provides a pulse vortex positioning detector which comprises a box body and a box cover positioned at the upper end of the box body, wherein a positioning instrument is arranged at the top of the box body; the positioning instrument (3) comprises a positioning instrument shell (37), a light source (31), a first plane mirror (32), a second plane mirror (33), a first opening (34), a second opening (35) and an optical sensor (36); the bottom of the box body is provided with a third opening capable of transmitting the reflected light of the second plane mirror; the third opening, the second opening and the optical sensor are positioned on the same straight line; a detection probe is also arranged in the box body; the side of the box body is respectively provided with a detection probe data interface and a locator data interface. According to the pulse vortex positioning detector, the positioning instrument is added into the pulse vortex detection equipment, so that the accurate positioning of the movement track of the detection equipment is realized, and great convenience is provided for evaluating the pipeline corrosion; the device has reasonable design and simple and convenient operation, and improves the working efficiency.
Description
Technical Field
The invention belongs to the field of pulsed eddy current detection equipment, and particularly relates to a pulsed eddy current positioning detector.
Background
The nondestructive testing technology is to detect internal and surface defects of various engineering materials, parts, structural members and the like by utilizing the changes of reactions to heat, sound, light, electricity, magnetism and the like caused by abnormal internal structure of materials or defects under the condition of not damaging detected objects, and judge and evaluate the types, properties, quantity, shape, positions, sizes, distribution and changes of the defects. The nondestructive testing technology mainly comprises five detection methods of ray detection, ultrasonic detection, magnetic powder detection, penetration detection and vortex detection, and the pulsed vortex detection technology is used as one branch of vortex detection in the nondestructive testing, has the characteristic advantages, and mainly comprises the advantages of no need of couplant, abundant frequency spectrum, high response speed, strong penetration depth and the like. However, the moving track cannot be accurately positioned when the pulsed eddy current detection is used for B scanning, and difficulty is brought to corrosion analysis of the pipeline.
Disclosure of Invention
In view of the above, the present invention is directed to a pulsed eddy current positioning detector to solve the problem that the existing detection coil cannot accurately position the moving track.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the pulse vortex positioning detector comprises a box body and a box cover positioned at the upper end of the box body, wherein a positioning instrument is arranged at the top of the box body;
the positioning instrument comprises a positioning instrument shell, a light source positioned in the positioning instrument shell, a first plane mirror positioned in the irradiation range of the light source, a second plane mirror capable of receiving the reflected light of the first plane mirror, a first opening and a second opening positioned at the bottom of the positioning instrument shell and capable of transmitting the reflected light of the second plane mirror, and an optical sensor positioned in the positioning instrument shell, wherein an image processing chip is arranged in the optical sensor;
the bottom of the box body is provided with a third opening capable of transmitting the reflected light of the second plane mirror; the third opening, the second opening and the optical sensor are positioned on the same straight line;
a detection probe is also arranged in the box body;
the side of the box body is respectively provided with a detection probe data interface and a locator data interface.
Further, a convex lens is arranged at the second opening.
Further, the third opening, the second opening and the optical sensor are positioned on the same vertical line;
further, the box cover is detachably connected with the box body.
Further, the bottom end of the light source and the bottom end of the first plane mirror are on the same horizontal plane.
Further, the second plane mirror and the first plane mirror are positioned on the same vertical line.
Further, the light source and the optical sensor are respectively positioned at the left side and the right side of the positioning instrument.
Further, the third opening is located below the positioner.
Further, the detection probe comprises a coil fixing column and a detection coil coiled on the coil fixing column.
Further, the light source is a light emitting diode.
Compared with the prior art, the pulse eddy current positioning detector has the following advantages:
according to the pulse vortex positioning detector, the positioning instrument is added into the pulse vortex detection equipment, so that the accurate positioning of the movement track of the detection equipment is realized, and great convenience is provided for evaluating the pipeline corrosion; the device has the advantages of reasonable design, wide application range, high precision and the like.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a pulsed eddy current positioning detector according to an embodiment of the invention;
reference numerals illustrate:
1-a box cover; 2-a box body; 3-positioning instrument; 31-a light source; 32-a first plane mirror; 33-a second planar mirror; 34-a first opening; 35-a second opening; 36-an optical sensor; 37-locator housing; 38-a convex lens; 4-coil fixing columns; 5-a detection coil; 6-detecting a probe data interface; 7-a locator data interface; 8-a third opening.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
A pulse vortex positioning detector is shown in figure 1, and comprises a box body 2 and a box cover 1 positioned at the upper end of the box body 2, wherein a positioning instrument 3 is arranged at the inner top of the box body 2;
the positioning instrument 3 comprises a positioning instrument shell 37, a light source 31 positioned in the positioning instrument shell 37, a first plane mirror 32 positioned in the irradiation range of the light source 31, a second plane mirror 33 capable of receiving light reflected by the first plane mirror 32, a first opening 34 positioned at the bottom of the positioning instrument shell 37 and capable of transmitting the light reflected by the second plane mirror 33, a second opening 35 and an optical sensor 36 positioned in the positioning instrument shell 37, wherein an image processing chip is arranged in the optical sensor 36;
the bottom of the box body 2 is provided with a third opening 8 which can transmit the light reflected by the second plane mirror 33; the third opening 8, the second opening 35 and the optical sensor 36 are positioned on the same straight line; after the light rays which are diffusely reflected by the pipeline are gathered through the convex lens 38, the light rays can sequentially penetrate through the third opening 8 and the second opening 35, and the light rays reach the optical sensor 36 to be imaged.
A detection probe is also arranged in the box body 2;
the side of the box body 2 is respectively provided with a detection probe data interface 6 and a locator data interface 7.
A convex lens 38 is provided at the second opening 35. The light can be focused to make the imaging at the optical sensor 36 clearer.
The third opening 8, the second opening 35 and the optical sensor 36 are located on the same vertical line. Ensuring that most of the light transmitted through the third opening 8 passes through the second opening 35 to the optical sensor 36.
The box cover 1 is detachably connected with the box body 2. The box cover 1 can be opened to overhaul the components in the box body 2.
The bottom end of the light source 31 is on the same horizontal plane with the bottom end of the first plane mirror 32.
The second plane mirror 33 is positioned on the same vertical line as the first plane mirror 32. It is ensured that most of the light reflected by the first mirror 32 reaches the second mirror 33.
The light source 31 and the optical sensor 36 are respectively positioned at the left and right sides of the positioner 3.
A third opening 8 is located below the positioner 3.
The detection probe comprises a coil fixing column 4 and a detection coil 5 coiled on the coil fixing column 4.
The light source 31 is a light emitting diode.
The specific working procedure of this example is as follows:
the pulse vortex positioning detector is placed on the surface of a pipeline, a pulse vortex detection signal of the pipeline is obtained through a detection probe, and the signal is led out through a detection probe data interface 6; while the leds emit light which illuminates the surface of the pipe through the first plane mirror 32, the second plane mirror 33, the first opening 34, and the third opening 8 in this order. Thereafter, a portion of the light diffusely reflected back through the tube surface passes through the third opening 8, is collected by the convex lens 38, and is transmitted to the optical sensor 36 for imaging. Thus, when the detector moves, the moving track is recorded as a group of high-speed shot consecutive images, and is analyzed and processed by a special image analysis chip (DSP, digital microprocessor) inside the optical sensor 36, and the chip judges the moving direction and the moving distance of the positioner by analyzing the change of the positions of the characteristic points on the images, so that the positioning of the coil moving track is completed, and meanwhile, the coil moving track data is exported through the data interface 7 of the positioner.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (8)
1. A pulsed eddy current positioning detector, characterized by: comprises a light-tight box body (2) and a box cover (1) positioned at the upper end of the box body (2), wherein a positioning instrument (3) is arranged at the inner top of the box body (2);
the positioning instrument (3) comprises a positioning instrument shell (37), a light source (31) positioned in the positioning instrument shell (37), a first plane mirror (32) positioned in the irradiation range of the light source (31), a second plane mirror (33) capable of receiving light reflected by the first plane mirror (32), a first opening (34) positioned at the bottom of the positioning instrument shell (37) and capable of transmitting light reflected by the second plane mirror (33), a second opening (35) and an optical sensor (36) positioned in the positioning instrument shell (37), wherein an image processing chip is arranged in the optical sensor (36);
the bottom of the box body (2) is provided with a third opening (8) which can transmit the light reflected by the second plane mirror (33); the third opening (8), the second opening (35) and the optical sensor (36) are positioned on the same straight line;
a detection probe is also arranged in the box body (2);
the side surface of the box body (2) is respectively provided with a detection probe data interface (6) and a locator data interface (7);
a convex lens (38) is arranged at the second opening (35);
the third opening (8), the second opening (35) and the optical sensor (36) are positioned on the same vertical line.
2. A pulsed eddy current positioning detector according to claim 1, wherein: the box cover (1) is detachably connected with the box body (2).
3. A pulsed eddy current positioning detector according to claim 1, wherein: the bottom end of the light source (31) and the bottom end of the first plane mirror (32) are on the same horizontal plane.
4. A pulsed eddy current positioning detector according to claim 1, wherein: the second plane mirror (33) and the first plane mirror (32) are positioned on the same vertical line.
5. A pulsed eddy current positioning detector according to claim 1, wherein: the light source (31) and the optical sensor (36) are respectively positioned at the left side and the right side of the positioning instrument (3).
6. A pulsed eddy current positioning detector according to claim 1, wherein: the third opening (8) is positioned below the positioning instrument (3).
7. A pulsed eddy current positioning detector according to claim 1, wherein: the detection probe comprises a coil fixing column (4) and a detection coil (5) coiled on the coil fixing column (4).
8. A pulsed eddy current positioning detector according to claim 1, wherein: the light source (31) is a light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610931272.2A CN106525959B (en) | 2016-10-31 | 2016-10-31 | Pulse vortex positioning detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610931272.2A CN106525959B (en) | 2016-10-31 | 2016-10-31 | Pulse vortex positioning detector |
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| Publication Number | Publication Date |
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| CN106525959A CN106525959A (en) | 2017-03-22 |
| CN106525959B true CN106525959B (en) | 2023-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610931272.2A Active CN106525959B (en) | 2016-10-31 | 2016-10-31 | Pulse vortex positioning detector |
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| GB9409680D0 (en) * | 1990-11-29 | 1994-07-06 | Amrplus Partners | Sensor for detecting disk rotation |
| CN2585229Y (en) * | 2002-12-19 | 2003-11-05 | 林俊明 | Vortex/video integral checking device |
| CN1588084A (en) * | 2004-09-08 | 2005-03-02 | 华南理工大学 | Supersonic vortex and metal magnetic memory composite detecting system |
| CN101169225A (en) * | 2007-11-23 | 2008-04-30 | 上海核工程研究设计院 | Long conveyance pipe defect positioning method and positioning system |
| CN102661998A (en) * | 2012-05-30 | 2012-09-12 | 天津工业大学 | Electromagnetic acoustic emission nondestructive detection method of metal thin board and device thereof |
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| US20050286050A1 (en) * | 2004-06-29 | 2005-12-29 | Nikon Corporation | Real-time through lens image measurement system and method |
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| GB9409680D0 (en) * | 1990-11-29 | 1994-07-06 | Amrplus Partners | Sensor for detecting disk rotation |
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| CN1588084A (en) * | 2004-09-08 | 2005-03-02 | 华南理工大学 | Supersonic vortex and metal magnetic memory composite detecting system |
| CN101169225A (en) * | 2007-11-23 | 2008-04-30 | 上海核工程研究设计院 | Long conveyance pipe defect positioning method and positioning system |
| CN102661998A (en) * | 2012-05-30 | 2012-09-12 | 天津工业大学 | Electromagnetic acoustic emission nondestructive detection method of metal thin board and device thereof |
| FR3017953A1 (en) * | 2014-02-27 | 2015-08-28 | Airbus Operations Sas | SURFACE CONTROL EQUIPMENT OF A CAVITY, AND CORRESPONDING CONTROL METHOD |
| CN103926237A (en) * | 2014-04-16 | 2014-07-16 | 爱威科技股份有限公司 | Dry chemical detection device |
| CN105929022A (en) * | 2016-04-18 | 2016-09-07 | 山东科技大学 | Detection apparatus and detection method for nondestructive damage evaluation of wire ropes by pulse eddy current |
| CN206132708U (en) * | 2016-10-31 | 2017-04-26 | 天津因科新创科技有限公司 | A impulse eddy current testing fixing device that pops one's head in for having locate function |
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