CN216955868U

CN216955868U - Phased array ultrasonic detection test block

Info

Publication number: CN216955868U
Application number: CN202122087700.7U
Authority: CN
Inventors: 邵晗烽; 成风; 汤楠; 叶文
Original assignee: Jiangsu Sunco Boiler Co ltd
Current assignee: Jiangsu Sunco Boiler Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-07-12
Anticipated expiration: 2031-08-31

Abstract

The application discloses phased array ultrasonic testing test block for test ultrasonic testing system, ultrasonic testing system includes the voussoir, including the piece main part, the top surface of piece main part be formed with the curved surface that the voussoir bottom surface was laminated mutually, piece main part both sides are formed with first reflection cambered surface and second reflection cambered surface respectively, the centre of a circle of first reflection cambered surface and second reflection cambered surface overlaps, first reflection cambered surface is different with the radius of second reflection cambered surface, the thickness of piece main part is close to the width of voussoir. The wedge block is well coupled with the surface of the test block, so that errors caused by coupling between the surface of the test block and the wedge block can be reduced, and time base linearity (ultrasonic velocity measurement) of two echo adjusting and detecting systems can be found at one time.

Description

Phased array ultrasonic detection test block

Technical Field

The application relates to an ultrasonic detection test block, in particular to a phased array ultrasonic detection test block.

Background

Phased array ultrasonic detection is a new technology in the ultrasonic detection method. During ultrasonic detection, a test block is needed for debugging or testing an instrument, a probe and a wedge block, and the overall dimension of the test block can influence the debugging or testing precision. In order to reduce yield errors caused by inconsistent coupling between the wedge block and the surface of a detected workpiece, the axial and outer diameter wedge block is required for debugging of an instrument during detection. However, the test blocks designed at present are based on the pulse reflection echo ultrasonic detection technology, and the test blocks are used for debugging or testing the phased array ultrasonic detection instrument, particularly a phased array ultrasonic detection system with an axial outer diameter wedge block, which is difficult or sometimes not suitable. Therefore, the test block is designed for debugging or testing the phased array ultrasonic detection instrument based on actual detection requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a phased array ultrasonic detection test block.

The embodiment of the application discloses phased array ultrasonic testing test block for test ultrasonic testing system, ultrasonic testing system includes the voussoir, including the piece main part, the top surface of piece main part be formed with the curved surface that the voussoir bottom surface was laminated mutually, piece main part both sides are formed with first reflection cambered surface and second reflection cambered surface respectively, the centre of a circle of first reflection cambered surface and second reflection cambered surface overlaps, the radius of first reflection cambered surface and second reflection cambered surface is different, the thickness of piece main part is close to the width of voussoir.

Preferably, in the phased array ultrasonic testing block, the ultrasonic testing system selects a transverse wave at an arbitrary angle on the block main body, that is, finds echo signals at two different sound paths, and the two echo signals are maximum at the same time.

Preferably, in the phased array ultrasonic detection test block, a curvature radius of the curved surface is less than or equal to 50mm, and radii of the first reflective arc surface and the second reflective arc surface are respectively 25mm and 50 mm.

Preferably, in the phased array ultrasonic testing test block, the curvature radius of the curved surface is more than 50mm and less than or equal to 250mm, and the radii of the first reflecting arc surface and the second reflecting arc surface are respectively 50mm and 75 mm.

Preferably, in the phased array ultrasonic testing block, the apex angle of the first and second reflection curved surfaces is 60 °.

Compared with the prior art, the utility model has the advantages that the wedge block is well coupled with the surface of the test block, the error caused by the coupling between the surface of the test block and the wedge block can be reduced, and the time-base linearity (ultrasonic speed measurement) of two echo adjusting detection systems can be found at one time.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a front view of a phased array ultrasonic inspection block according to embodiment 1 of the present invention;

FIG. 2 is a side view of a phased array ultrasonic inspection block according to example 1 of the present invention;

fig. 3 is a timing debugging state diagram of the phased array ultrasonic detection system in embodiment 1 of the present invention;

fig. 4 is a diagram showing the relative positions of echoes during time base debugging of the phased array ultrasonic detection system in embodiment 1 of the present invention;

FIG. 5 is a time-delay chart of the test wedge in example 1 of the present invention;

FIG. 6 is a front view showing a phased array ultrasonic testing block according to embodiment 2 of the present invention;

FIG. 7 is a side view of a phased array ultrasonic inspection block according to example 2 of the present invention;

fig. 8 is a timing debugging state diagram of the phased array ultrasonic detection system in embodiment 2 of the present invention;

fig. 9 is a diagram showing the relative positions of echoes during time base debugging of the phased array ultrasonic detection system in embodiment 2 of the present invention;

FIG. 10 is a timing chart of the test wedge in example 2 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In ultrasonic detection, the coupling state of a wedge block (probe) and a workpiece or a test block directly influences the precision and reliability of an ultrasonic detection result. When the detected workpiece has a curved surface, in order to improve the precision and reliability of the detection result, a test block and a corresponding axial outer diameter wedge block which are the same as or similar to the curved surface of the detected workpiece are adopted in the debugging of an ultrasonic detection system (instrument, probe and wedge block).

The time-based linearity of the ultrasonic inspection instrument requires echoes from two known acoustic path (or depth) reflectors. It is known that the sound path (or depth), which should be within a reasonable range, is too small to cause measurement errors, and too large to cause the instrument to recognize the echo of the reflector at a far distance (or depth) (the echo signal is indistinguishable from the noise signal).

Referring to fig. 1 to 10, the phased array ultrasonic testing test block is used for testing an ultrasonic testing system, the ultrasonic testing system includes a wedge 100, and includes a block body 200, a curved surface 201 mutually attached to a bottom surface of the wedge 100 is formed on a top surface of the block body 200, a first reflective arc surface 202 and a second reflective arc surface 203 are respectively formed on two sides of the block body 200, centers of circles of the first reflective arc surface 202 and the second reflective arc surface 203 are overlapped, radii of the first reflective arc surface 202 and the second reflective arc surface 203 are different, and a thickness of the block body 200 is close to a width of the wedge 100. The ultrasonic detection system randomly selects a transverse wave with an angle on the block body 200, that is, finds echo signals at two different sound paths, and the two echo signals are maximum at the same time. The apex angles of the first reflective arc 202 and the second reflective arc 203 are both 60 °.

In embodiment 1, as shown in fig. 1 to 5, the curvature radius of the curved surface 201 is less than or equal to 50mm, and the radii of the first reflective arc surface 202 and the second reflective arc surface 203 are 25mm and 50mm, respectively.

The radius of the first reflection cambered surface and the radius of the second reflection cambered surface of the test block are respectively selected to be 25mm and 50 mm.

Referring to fig. 3 and 4, time-based linearity adjustment (ultrasonic velocity measurement) of the phased array ultrasonic inspection apparatus will be described. Preferably, the reflected echo of the second reflecting cambered surface is selected as the first reflected echo signal. The wedge (probe) is placed as shown in fig. 3, and the display range of the instrument screen is adjusted so that the echo signals of the two reflectors can be displayed on the screen as shown in fig. 4. The wedge (probe) is moved left and right to find the highest echo signal of the reflected wave of the second reflection cambered surface (50 mm position in figure 4), and the second echo signal of the reflected wave reaches the highest echo (125 mm position in figure 4) through the first reflection cambered surface according to the characteristics of the ultrasonic wave and the design characteristics of the test block. After two echo signals are recorded by adjusting the function keys of the instrument, the instrument can automatically adjust the time base linearity. If the reflected echo of the first reflecting arc is selected as the first transmitted echo signal, the first echo signal and the second echo signal are at 25mm and 100mm, respectively.

Referring to fig. 5, the delay of ultrasonic signals in a wedge block during phased array ultrasonic testing is tested, wherein the ultrasonic signals are scanned in sectors (S-scan) at different angles or scanned electronically (E-scan) at the same angle. And recommending and selecting a second reflection cambered surface test wedge block delay. The wedge block (probe) is placed on the upper surface of the test block, the wedge block (probe) is moved left and right to enable the highest echo signal of each angle to be displayed on the screen of the instrument, the function keys of the instrument are adjusted, and after each echo signal is recorded, the instrument can automatically test the wedge block delay of each angle and is automatically stored by the instrument. And a first reflection cambered surface is also adopted to carry out the test of wedge block time delay.

In embodiment 2, as shown in fig. 6 to 10, the curvature radius of the curved surface 201 is greater than 50mm and less than or equal to 250mm, and the radii of the first reflective arc surface 202 and the second reflective arc surface 203 are 50mm and 75mm, respectively.

The radius of the first reflection cambered surface and the radius of the second reflection cambered surface of the test block are respectively selected to be 50mm and 75 mm.

Referring to fig. 8 and 9, time base linearity adjustment (ultrasonic velocity measurement) of the phased array ultrasonic inspection apparatus will be described. Preferably, the reflected echo of the second reflecting cambered surface is selected as the first reflected echo signal. The wedge (probe) is placed as shown in fig. 8, and the display range of the instrument screen is adjusted so that the echo signals of the two reflectors can be displayed on the screen as shown in fig. 9. The wedge (probe) is moved left and right to find the highest echo signal of the reflected wave of the second reflection cambered surface (figure 9, 75mm position), and the second echo signal of the reflected wave reaches the highest echo (figure 9, 200mm position) through the first reflection cambered surface according to the characteristics of the ultrasonic wave and the design characteristics of the test block. After two echo signals are recorded by adjusting the function keys of the instrument, the instrument can automatically adjust the time base linearity. If the reflected echo of the first reflective arc is selected to be the first transmitted echo signal, then the first echo signal and the second echo signal are at 50mm and 175mm, respectively.

Referring to fig. 10, the delay of ultrasonic signals in a wedge block during phased array ultrasonic testing is tested, wherein the ultrasonic signals are scanned in sectors at different angles (S-scan) or scanned electronically at the same angle (E-scan). And recommending and selecting a second reflection cambered surface test wedge block delay. The wedge block (probe) is placed on the upper surface of the test block, the wedge block (probe) is moved left and right to enable the highest echo signal of each angle to be displayed on the screen of the instrument, the function keys of the instrument are adjusted, and after each echo signal is recorded, the instrument can automatically test the wedge block delay of each angle and is automatically stored by the instrument. And the first reflection cambered surface is also adopted to test the wedge block delay.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.

Claims

1. The phased array ultrasonic detection test block is used for testing an ultrasonic detection system, the ultrasonic detection system comprises a wedge block and is characterized by comprising a block body, a curved surface mutually attached to the bottom surface of the wedge block is formed on the top surface of the block body, a first reflection arc surface and a second reflection arc surface are respectively formed on two sides of the block body, the circle centers of the first reflection arc surface and the second reflection arc surface are overlapped, the radiuses of the first reflection arc surface and the second reflection arc surface are different, and the thickness of the block body is close to the width of the wedge block.

2. The phased array ultrasonic test block of claim 1, wherein the ultrasonic testing system finds the echo signals at two different acoustic paths by arbitrarily selecting an angle of the transverse wave on the block body, and the two echo signals are maximum at the same time.

3. The phased array ultrasonic testing test block according to claim 1, wherein the curvature radius of the curved surface is less than or equal to 50mm, and the radius of the first reflecting arc surface and the radius of the second reflecting arc surface are respectively 25mm and 50 mm.

4. The phased array ultrasonic testing test block of claim 1, wherein the curvature radius of the curved surface is less than or equal to 250mm and is greater than 50mm, and the radius of the first reflective cambered surface is greater than or equal to 75 mm.

5. The phased array ultrasonic testing test block of claim 1, wherein the apex angle of the first and second reflective arcs is 60 °.