CN108562652B - Spliced underwater structure detection array ultrasonic probe - Google Patents
Spliced underwater structure detection array ultrasonic probe Download PDFInfo
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- CN108562652B CN108562652B CN201810295918.1A CN201810295918A CN108562652B CN 108562652 B CN108562652 B CN 108562652B CN 201810295918 A CN201810295918 A CN 201810295918A CN 108562652 B CN108562652 B CN 108562652B
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- 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
- G01N29/24—Probes
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- 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
- G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
- G01N29/0654—Imaging
- G01N29/069—Defect imaging, localisation and sizing using, e.g. time of flight diffraction [TOFD], synthetic aperture focusing technique [SAFT], Amplituden-Laufzeit-Ortskurven [ALOK] technique
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- 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
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
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- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a spliced underwater structure detection array ultrasonic probe, which comprises: the probe comprises a probe rear cover, a pressing block, a wedge-shaped absorption block and a main shell, wherein a probe wafer is arranged in a space between the wedge-shaped absorption block and the main shell, and a backing sound absorption material is arranged between the rear cover and the wedge-shaped absorption block; the rear cover of the probe, the wedge-shaped absorption block and the main shell are made of metal; the lower part of the wedge-shaped absorption block is tightly bonded with the probe wafer, the pressing block is pressed against the upper part of the wedge-shaped absorption block, and the probe wafer is tightly combined with the main shell through the sealing fit of the probe rear cover and the main shell; the opposite sides of the main shell are respectively provided with a group of trapezoidal lugs and trapezoidal clamping holes which are used as connecting mechanisms with other probes; four corners of the main shell are cut into quarter arcs which can be spliced with other probes to form circular and/or semicircular flow guide holes. The invention can effectively overcome the influence of the underwater high water pressure environment, can quickly build the ultrasonic probe array with reliable structure according to the detection requirement, and has good effect on the detection of the internal damage of the underwater structure.
Description
Technical Field
The invention relates to the field of ultrasonic detection, in particular to a spliced underwater structure detection array ultrasonic probe.
Background
Many structures (such as dams, water gates, piers, underwater pipelines and the like) in water conservancy and port and navigation engineering are underwater, geological uneven settlement, earthquake, collision, corrosion, improper material proportioning, and particularly, the defects that the underwater structures are easy to crack and the like are caused under the influence of structural stress and ground stress. The defects of cracks and the like of underwater structures are serious potential safety hazards, and if the cracks and the like cannot be detected and repaired in time, major safety accidents such as dam break, bridge collapse and the like are easily caused.
Due to the difficulty of underwater detection and the limitation of technical level, the detection of water conservancy facilities such as dams in China at present mainly depends on that sensors are buried in dam bodies in the early stage for monitoring, the data of deformation, seepage, stress, hydrology, weather and the like of structures are sensed, and a remote monitoring terminal unit acquires signals of the front-end sensors in a wireless or wired mode and preprocesses and stores the signals. With the development of technologies such as high-resolution image sonar, ultrasonic cleaning and detection, the detection of underwater structures by using an AUV (autonomous underwater vehicle) carrying an imaging sonar draws attention at home.
Disclosure of Invention
The invention aims to solve the technical problem of providing an underwater structure detection array ultrasonic probe which can overcome an underwater high-pressure environment and can be quickly spliced for underwater ultrasonic detection.
In order to solve the above technical problems, the present invention provides a spliced ultrasonic probe for an underwater structure detection array, comprising: the probe comprises a probe rear cover, a pressing block, a wedge-shaped absorption block and a main shell, wherein a probe wafer is arranged between the wedge-shaped absorption block and the main shell, and a backing sound absorption material can be arranged between the rear cover and the wedge-shaped absorption block.
Further, as a specific structure form, the rear cover, the wedge-shaped absorption block and the main shell of the probe are made of metal.
Further, as a specific configuration, the rear cover of the probe of the present invention has a series of fixing holes corresponding to the main housing of the present invention.
Furthermore, as a specific structural form, the pressing block can be embedded into the central groove of the wedge-shaped absorption block and is pressed against the upper part of the wedge-shaped absorption block, and the probe wafer is tightly combined with the main shell through the sealing matching of the probe rear cover and the main shell.
Furthermore, as a specific structural form, the wedge-shaped absorption block disclosed by the invention adopts a wedge-shaped structure, and has a good sound wave damping effect.
Further, as a specific structure form, the lower part of the wedge-shaped absorption block is tightly adhered with the probe wafer.
Furthermore, as a specific structural form, four corners of the main shell are cut into quarter arcs, and the main shell can be spliced with other probes to form a circular or semicircular flow guide hole.
Further, as a specific structure form, the opposite sides of the main shell of the invention are respectively provided with a group of trapezoidal lugs and trapezoidal clamping holes as connecting mechanisms with other probes.
Further, as a specific structural form, a square groove is reserved in the front cover of the main shell, the square groove is used for filling a matching layer material, and the acoustic impedance of the matching layer material is determined by concrete and the acoustic impedance characteristics of the front cover of the main shell.
The invention has the beneficial effects that: the influence of the underwater high water pressure environment can be effectively overcome, the ultrasonic probe array with a reliable structure can be quickly built according to the detection requirement, and the detection on the internal damage of the underwater structure has a good effect.
Drawings
FIG. 1 is a schematic structural component view of a spliceable ultrasonic probe for an underwater structure detection array according to the present invention;
FIG. 2 is a schematic structural diagram of a rear cover of a probe in a spliceable ultrasonic probe for detecting an underwater structure according to the present invention;
FIG. 3 is a schematic structural diagram of a wedge-shaped absorption block in a spliceable ultrasonic probe for detecting an underwater structure according to the present invention;
fig. 4 is a schematic structural diagram of a main housing of an ultrasonic probe for detecting an underwater structure, which can be spliced according to the invention.
Reference numerals: 1-probe back cover, 2-pressing block, 3-wedge-shaped absorption block, 4-probe wafer, and 5-main shell.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 shows a schematic structural diagram of a spliced underwater structure detection array ultrasonic probe of the invention.
A spliced ultrasonic probe of an underwater structure detection array comprises a probe rear cover 1, a probe front cover and a probe rear cover, wherein the probe rear cover is used for sealing the spliced ultrasonic probe of the underwater structure detection array; as shown in fig. 2, the probe rear cover 1 may be made of metal with a series of corresponding fixing holes of the main housing 5.
The pressing block 2 is used for fixing the wedge-shaped absorption block 3 and/or the probe wafer 4 and/or the main shell 5 to be tightly attached; the pressing block 2 is embedded into the central groove of the wedge-shaped absorption block 3 and is pressed against the upper part of the wedge-shaped absorption block, and the probe wafer is tightly combined with the main shell through the sealing matching of the probe rear cover and the main shell.
The wedge-shaped absorption block 3 is used for absorbing sound waves sent by the probe wafer 4 to the probe rear cover 1; the wedge-shaped absorption block 3 is made of metal; as shown in fig. 3, the wedge-shaped absorption block 3 has a wedge-shaped structure, and has a good sound wave damping effect. Further, a backing sound absorption material is arranged between the wedge-shaped absorption block 3 and the probe rear cover 1, and the backing sound absorption material absorbs sound waves sent by the wedge-shaped absorption block 3 to the probe rear cover 1.
A probe wafer 4 is arranged between the wedge-shaped absorption block 3 and the main shell 5 and used for generating sound waves; the probe wafer 4 is tightly bonded with the wedge-shaped absorption block 3;
the main shell 5 is used for protecting the reliability of the internal structure of the spliced underwater structure detection array ultrasonic probe in a high-water-pressure environment; the main housing 5 is made of metal; as shown in fig. 4, a group of trapezoidal protrusions and trapezoidal fastening holes are respectively disposed on opposite sides of the main housing 5, and are used as connection mechanisms with other probes, so as to easily splice into an ultrasonic probe array meeting the detection requirements; furthermore, four corners of the main shell 5 are cut into quarter arcs, and the main shell can be spliced with other probes to form a circular or semicircular flow guide hole, and the flow guide hole can reduce the moving resistance of the underwater array. Further, a square groove is reserved in the front cover of the main shell 5 and used for filling a matching layer material, and acoustic impedance of the matching layer material is determined by concrete and acoustic impedance characteristics of the front cover of the main shell.
The spliced ultrasonic probe array for the underwater structure detection array can be clamped with the trapezoidal protrusion block of the other probe main shell body through the trapezoidal groove of the main shell body 5 to form an integral ultrasonic probe array. Similarly, a plurality of spliced underwater structure detection array ultrasonic probes can be spliced along the horizontal direction to form a linear ultrasonic probe array; furthermore, the linear ultrasonic probe array is carried by an underwater robot for underwater detection, and the linear ultrasonic probe array can scan underwater structures in a sector mode by adopting an ultrasonic pulse echo method, so that sound waves can generate a focusing effect as much as possible to improve the detection precision; further, the detection result of the linear ultrasonic probe array is imaged to obtain a more accurate and clear underwater structure defect image. Furthermore, the quarter circular arcs at the four corners of the main shell 5 and other spliced ultrasonic probes of the underwater structure detection array form circular and/or semicircular flow guide holes through the splicing method, so that the moving resistance of the linear ultrasonic probe array under water is reduced, and an underwater robot can move the linear ultrasonic probe array conveniently to detect underwater structures.
Therefore, the spliced underwater structure detection array ultrasonic probe is easy to quickly build an underwater ultrasonic probe array with a stable structure, and is very suitable for detecting underwater structures.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A splicing type underwater structure detection array ultrasonic probe is characterized by comprising:
the probe comprises a probe rear cover (1), a pressing block (2), a wedge-shaped absorption block (3) and a main shell (5), wherein a probe wafer (4) is placed between the wedge-shaped absorption block and the main shell, and a backing sound absorption material is placed between the probe rear cover (1) and the wedge-shaped absorption block (3);
the opposite sides of the main shell (5) are respectively provided with a pair of trapezoidal lugs and trapezoidal clamping holes, the trapezoidal lugs and the trapezoidal clamping holes are used as connecting mechanisms with other probes, and the ultrasonic probe array can be spliced by clamping the lugs and the clamping holes; the pressure block (2) is embedded between the backing sound absorption material and the probe rear cover, the backing sound absorption material is embedded in a central groove of the wedge-shaped absorption block (3), and the probe wafer (4) is tightly combined with the main shell (5) through the sealing fit of the probe rear cover (1) and the main shell (5).
2. The ultrasonic probe of claim 1, wherein the probe back cover (1), the pressing block (2), the wedge-shaped absorption block (3) and the main housing (5) are made of metal.
3. A spliceable ultrasonic underwater structure detection array probe according to claim 1, in which the probe rear cover (1) has a series of fixing holes corresponding to the main housing.
4. The spliceable underwater structure detection array ultrasonic probe of claim 1, wherein the wedge-shaped absorption block (3) is of a wedge-shaped structure.
5. The spliceable underwater structure detection array ultrasonic probe of claim 1, wherein the probe wafer (4) is tightly bonded to the wedge-shaped absorption block (3).
6. The ultrasonic probe of claim 1, wherein the main housing (5) is cut into a quarter of a circular arc at four corners, and is assembled with other probes to form a circular or semicircular diversion hole.
7. The ultrasonic probe of claim 1, wherein a square groove is reserved on the front cover of the main housing (5) and is filled with a matching layer material, and the acoustic impedance of the matching layer material is determined by concrete and the acoustic impedance characteristics of the front cover of the main housing.
8. The spliced underwater structure detection array ultrasonic probe as claimed in claim 1, wherein the trapezoidal groove of the main shell (5) is clamped with the trapezoidal protrusion of the other probe main shell (5) to form an integral ultrasonic probe array, and similarly, the ultrasonic probes of the spliced underwater structure detection array are spliced with each other to form an ultrasonic probe array meeting the real-time underwater detection requirements of users.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810295918.1A CN108562652B (en) | 2018-04-04 | 2018-04-04 | Spliced underwater structure detection array ultrasonic probe |
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| CN201810295918.1A CN108562652B (en) | 2018-04-04 | 2018-04-04 | Spliced underwater structure detection array ultrasonic probe |
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| CN108562652A CN108562652A (en) | 2018-09-21 |
| CN108562652B true CN108562652B (en) | 2020-11-03 |
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Effective date of registration: 20230629 Address after: 231200 Intersection of Fanhua Avenue and Wanfo Mountain Road, Economic Development Zone, Feixi County, Hefei, Anhui Province Patentee after: HEFEI HUALIN PRECISION TECHNOLOGY Co.,Ltd. Address before: 213022, No. 200 Jinling North Road, Jiangsu, Changzhou Patentee before: CHANGZHOU CAMPUS OF HOHAI University |