Ultrasonic testing device

Abstract

The application provides an ultrasonic detection device, comprising: an ultrasonic probe, which emits ultrasonic waves and receives echoes; and a reflector, which is arranged at intervals from the ultrasonic probe and redistributes the energy of the ultrasonic waves to change the ultrasonic detection range. The application changes the original direct ultrasonic detection mode to a horizontal mode through the reflector, optimizes the ultrasonic detection range, adapts to actual detection sites, and improves the detection accuracy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ultrasonic detection, in particular to an ultrasonic detection device. BACKGROUND

[0002] With the rapid development of the national economy and social progress, shopping malls, stores, museums, tourist attractions and other places are increasing, and for these places, the flow of customers is a very key data, which can provide important reference data for the management and decision-making of the operators. The ultrasonic detection device is arranged at the entrance of the place to detect the passing flow in real time, so as to feed back to the electrical appliances such as lamps in the region, and by adjusting the lighting parameters of the lamps in real time, the power consumption can be reduced when there are few people, and long-term high-intensity opening can be avoided.

[0003] The existing lamp control application based on the flow of people is still immature, some control methods are single, only the on and off of the lamp is controlled according to whether there is a person passing by; some introduce a flow monitoring and counting mechanism, which emits ultrasonic waves downward from a high place through an ultrasonic detector at the entrance of the place to collect flow information, and then controls the lamp work according to the collected data.

[0004] The ultrasonic detector detects the passing flow based on ultrasonic time ranging, and the principle of ultrasonic time ranging is as follows: a beam of ultrasonic waves is emitted from the transmitting end of the ultrasonic wave, and at the same time, the timing starts, the emitted ultrasonic waves propagate in the medium, the sound waves have reflection characteristics, and when they encounter obstacles, they will reflect back, and when the receiving end of the ultrasonic wave receives the reflected ultrasonic waves, the timing stops. When the medium is air, the speed of sound is 340 m / s. When the ultrasonic wave is emitted to the ground, the projection coverage area of the ultrasonic beam on the ground is the detection area, and when a person enters the detection area and is detected by the ultrasonic wave, because the height of the person relative to the ground changes the time required to receive the reflected ultrasonic wave, it can be judged that there is a person passing through the detection area.

[0005] Generally speaking, the detection range of the ultrasonic detector is the coverage range of the cylindrical sound wave beam projected to the ground, and it is difficult to accurately control the detection area of a specific site. For example, for the flow of people entering the door, it is necessary to detect the flow change in the door width range, and generally the ultrasonic detector directly emits ultrasonic waves, so that the detection area on the ground is circular or close to circular, which cannot match such a width, and it is easy to miss the flow of people located at the edge of the range. In addition, along the direction of the flow of people in and out, the circular detection range is greater than the single step distance of the flow of people, and it is easy to contain multiple people walking in front and behind at the same time, and therefore it is difficult to achieve good resolution, and therefore it is necessary to improve the resolution of different individuals.

[0006] Therefore, the skilled in the art is committed to developing an ultrasonic detection device to match a specific detection range and improve the resolution. SUMMARY

[0007] In view of the above-mentioned defects of the prior art, the present application aims to solve the problem of poor accuracy of the detection object in the detection area caused by the large circular detection area of the existing ultrasonic detector.

[0008] To achieve the above-mentioned purpose, the present application provides an ultrasonic detection device, comprising:

[0009] an ultrasonic probe for emitting ultrasonic waves and receiving echoes;

[0010] a reflector arranged at a distance from the ultrasonic probe for redistributing the energy of the ultrasonic waves to change the ultrasonic detection range.

[0011] Further, the ultrasonic detection device is used for detecting the flow of people in a space, and the ultrasonic device is arranged above the entrance and / or exit passage of the space to detect the passing flow of people. After the ultrasonic waves pass through the reflector, the detection range thereof along the direction of the flow of people in and out is matched with the stride distance of the flow of people, and the detection range thereof perpendicular to the direction of the flow of people in and out is matched with the width of the entrance and / or exit passage of the space.

[0012] Further, the reflector stretches or narrows the distribution range of the ultrasonic waves in the transverse direction of the detection area, or stretches or narrows the distribution range of the ultrasonic waves in the longitudinal direction of the detection area, or adjusts the distribution range of the ultrasonic waves in multiple dimensions of the detection area.

[0013] Further, the space is a supermarket, a shopping mall, a store or a museum.

[0014] Further, the reflector comprises a reflecting surface.

[0015] Further, the reflecting surface comprises a converging area and / or a diverging area, the converging area causes the ultrasonic waves from the ultrasonic probe to converge along the X-axis direction and / or the Y-axis direction, and the diverging area causes the ultrasonic waves from the ultrasonic probe to diverge along the X-axis direction and / or the Y-axis direction.

[0016] In an embodiment of the present application, the reflector is a reflecting plate, the middle of the reflecting plate is thicker than the two sides thereof along the X-axis direction and / or the Y-axis direction, so that the ultrasonic waves from the ultrasonic probe diverge along the corresponding direction.

[0017] In an embodiment of the present application, the reflector is a reflecting plate, the two sides of the reflecting plate are thicker than the middle thereof along the X-axis direction and / or the Y-axis direction, so that the ultrasonic waves from the ultrasonic probe converge along the corresponding direction.

[0018] In one embodiment of the present application, the ultrasonic probe is installed in a horizontal direction, and the reflecting surface is outwardly inclined relative to the ultrasonic probe, and the reflecting surface transmits the ultrasonic waves downward after reflecting the ultrasonic waves from the ultrasonic probe.

[0019] Further, the reflector further comprises a sound wave absorbing device, which is arranged on the ultrasonic probe or the reflecting plate or between the two.

[0020] Further, a mounting frame is arranged, which is suitable for fixedly connecting the ultrasonic probe.

[0021] Further, the reflector is integrally formed with the mounting frame.

[0022] Technical effects:

[0023] The ultrasonic detection device of the present application has the following advantages: first, the original direct ultrasonic detection mode is changed to a horizontal mode, and the detection area is also changed from being perpendicular to the ultrasonic probe to being horizontal to the ultrasonic probe; second, the detection range of the horizontal detection area is changed by the different designs of the reflecting surface of the reflector, and the original circular detection area is changed to an elliptical shape after the action of the reflector, so as to adapt to the corresponding detection area of the stride distance and improve the detection accuracy.

[0024] The concept, specific structure and technical effects of the present application will be further described below with reference to the accompanying drawings, so as to fully understand the purpose, features and effects of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of an implementation scenario of the ultrasonic detection device of the present application.

[0026] Figure 2 is a structural schematic diagram of the ultrasonic detection device of the present application, which is a sectional schematic diagram.

[0027] Figure 3 is a structural schematic diagram of an embodiment of the reflector of the ultrasonic detection device of the present application, wherein (a) is a three-dimensional structural schematic diagram, (b) is a first sectional schematic diagram, and (c) is a second sectional schematic diagram.

[0028] Figure 4 is a working principle schematic diagram of the reflection of ultrasonic signals in a first sectional plane in one embodiment of the reflector of the present application.

[0029] Figure 5 is a structural schematic diagram of the ultrasonic detection device of the present application provided with a sound wave absorbing device.

[0030] Figure 6is a structural schematic view of another embodiment of the reflector of the ultrasonic detection device of the present application.

[0031] Figure 7 is a structural schematic view of another embodiment of the reflector of the ultrasonic detection device of the present application.

[0032] Figure 8 is a structural schematic view of another embodiment of the reflector of the ultrasonic detection device of the present application.

[0033] Figure 9 is a structural schematic view of another embodiment of the reflector of the ultrasonic detection device of the present application.

[0034] Figure 10 is a structural schematic view of another embodiment of the reflector of the ultrasonic detection device of the present application.

[0035] wherein:

[0036] 1 ultrasonic probe, 11 sound wave absorbing device, 12 probe part, 2 mounting rack, 3 reflector, 31 reflecting surface, 71 incident wave, 72 reflected wave, X length direction, Y width direction, Z thickness direction, M1 first cross section, M2 second cross section. DETAILED DESCRIPTION

[0037] As Figures 1-4 shown is an ultrasonic detection device provided by the present application, the basic structure includes an ultrasonic probe 1 and a reflector 3. The ultrasonic probe 1 is used to transmit ultrasonic waves and receive echoes between the detection area; the reflector 3 is fixedly installed at a distance from the ultrasonic probe 1, and is suitable for reflecting ultrasonic waves and redistributing the energy of the ultrasonic waves to change the detection range of the ultrasonic waves.

[0038] As Figure 1 shown is a scenario in which the ultrasonic detection device of the present application is used to detect the flow of people in a space. The ultrasonic device is arranged above the entrance and / or exit passage of the space to detect the flow of people passing through. After the ultrasonic waves pass through the reflector 3, the detection range of the ultrasonic waves along the direction of the flow of people in and out of the space matches the step distance of the flow of people, and the detection range of the ultrasonic waves perpendicular to the direction of the flow of people in and out of the space matches the width of the entrance and / or exit passage of the space. Further, the space is a supermarket, a shopping mall, a store, or a museum.

[0039] The step distance of the flow of people referred to herein is the average step distance of the flow of people. Generally, the standard distance of a normal step is 75 centimeters. The average step distance of an adult walking normally is about 70 centimeters. For the space of a shopping mall, a supermarket, or a store, the step distance of the flow of people when entering and exiting the space can be obtained according to statistical rules combined with the characteristics of the space.

[0040] As Figure 2The ultrasonic detection device of the present application is shown in one structural scheme. The ultrasonic probe 1 comprises a probe part 12 at the end thereof, which is adapted to emit and receive ultrasonic waves; the mounting frame 2 is adapted to fixedly connect the ultrasonic probe 1; the reflector 3 is fixedly installed at a distance from the ultrasonic probe 1, and is outwardly inclined relative to the ultrasonic probe 1, and has a length direction, i.e. the X-axis direction, which extends away from the probe part 12 along the length direction X, and comprises a reflecting surface 31 which is oppositely arranged relative to the probe part 12, and is adapted to reflect ultrasonic waves. Preferably, the reflector 3 is fixedly connected at one end of the mounting frame 2. Further, the reflecting surface 31 changes the propagation direction of the ultrasonic waves after reflecting the ultrasonic waves, for example, the originally horizontally propagating ultrasonic waves become vertically propagating after reflecting. The reflecting surface 31 is made of a material suitable for reflecting ultrasonic waves, such as stainless steel, acrylic, etc.

[0041] Generally, the ultrasonic waves emitted from the ultrasonic probe 1 propagate along a straight line, and the propagation range thereof is in a cylindrical shape, for example, when the outlet of the probe part 12 is circular, the ultrasonic waves propagate in a conical region extending from the outlet, and when reaching the detection plane, the area covered on the plane is the projection of the above-mentioned conical region on the detection plane, and the outline of the covered area is an enlarged circular or elliptical shape. The ultrasonic detection device of the present application improves the arrangement of the reflector 3, and changes the path of the ultrasonic waves emitted and received by the ultrasonic probe 1, and further, by designing the structure of the reflecting surface 31, the range covered by the ultrasonic waves is changed after reflecting, so as to accurately match the area actually required to be detected.

[0042] The reflecting surface 31 comprises a converging region and / or a diverging region, the converging region causes the ultrasonic waves from the ultrasonic probe 1 to converge along the X-axis direction and / or the Y-axis direction, and the diverging region causes the ultrasonic waves from the ultrasonic probe 1 to diverge along the X-axis direction and / or the Y-axis direction.

[0043] According to the shape of the reflecting surface 31 described above, the outline thereof in the X-axis direction or the Y-axis direction can be changed, so as to re-distribute the energy of the ultrasonic waves.

[0044] As Figure 3An example of the reflector 3 in the present application is provided. A first cross section Ml is defined as a cross section of the reflector 3 along the thickness direction Z (Z-axis direction) and the width direction Y (Y-axis direction), in the first cross section Ml, the middle portion of the reflecting surface 31 is formed as a convex shape toward the probe portion 12, and the reflecting surface 31 gradually moves away from the ultrasonic probe 1 from the middle portion to both ends, forming a cross section shape of thick in the middle and thin at both ends along the Y-axis direction. The ultrasonic waves reflected by the reflecting surface 31 have a larger range of reflected waves 72 in the Y-axis direction than that of the incident waves 71, and thus the ultrasonic waves from the ultrasonic probe 1 are diverged in the Y-axis direction, and the detection width in the lateral direction, i.e., the Y-axis direction, of the detection region is increased without changing the ultrasonic probe 1. As another alternative embodiment, a second cross section M2 is defined as a cross section of the reflector 3 along the thickness direction Z and the length direction X, in the second cross section M2, the reflecting surface 31 is formed as a concave shape, i.e., a cross section shape of thick at both ends and thin in the middle along the X-axis direction, so that the ultrasonic waves from the ultrasonic probe 1 are converged in the X-axis direction. As shown in FIG. 10, two embodiments of the reflecting surface 31 are provided, for example, Figure 3 Figure 3-1 and Figure 3-2 , having different profile shapes.

[0045] In the first cross section Ml, the profile of the reflecting surface 31 is at least partially a straight line or a curve, i.e., it can be a straight line, a curve, or a combination thereof. In one embodiment as shown in FIG. 11 (a), the reflecting surface 31 is composed of two inclined planes, which are inclined from the middle portion to both ends, and the reflected waves 72 are diverged after the reflection of the incident waves 71 by the reflecting surface 31. Figure 4

[0046] In another embodiment as shown in FIG. 11 (b), the profile of the reflecting surface 31 in the first cross section Ml is at least partially a curve, and the center of curvature of the curve is located outside the back side of the reflecting surface 31. The middle portion of the reflecting surface 31 is a flat surface, and the curved surfaces at both ends are curved outward. The reflected waves 72 are diverged after the reflection of the incident waves 71 by the reflecting surface 31. Figure 4

[0047] In another embodiment as shown in FIG. 11 (c), the profile of the reflecting surface 31 in the first cross section Ml is at least partially a curve, and the center of curvature of the curve is located outside the front side of the reflecting surface 31. The middle portion of the reflecting surface 31 is a flat surface, and the curved surfaces at both ends are curved outward. The reflected waves 72 are diverged after the reflection of the incident waves 71 by the reflecting surface 31. Figure 4

[0048] In addition, the profile of the reflector 3 in the first cross section Ml can be selected as a straight line, an inwardly concave line shape, or an outwardly convex line shape, etc., according to different requirements of the ultrasonic wave distribution in the detection region in the lateral direction or the width direction Y. ​​​​

[0049] The ultrasonic wave signal emitted by the ultrasonic probe 1 has a range close to a column and has a certain divergence characteristic, as shown in Figure 2 As shown from the second cross section M2, after the signal is incident on the reflecting surface 31, because the reflecting surface 31 is designed to be concave, it can be designed to be a concave surface, or a combination of multiple flat surfaces, or a combination of a concave surface and a flat surface, through the reflecting surface 31 described above, the reflected wave 72 of the ultrasonic wave is changed from divergence to convergence in the length direction X, and the dimension of the ultrasonic wave detection in the longitudinal direction of the detection area is compressed.

[0050] Further, when the reflecting surface 31 is designed to be concave, the angle formed by the tangent direction of the profile line at any point on the second cross section M2 and the emission direction of the ultrasonic wave signal is an acute angle, and the angle gradually increases away from the end of the probe portion 12, and through the concave reflecting surface 31 described above, the incident ultrasonic wave can be reflected to achieve the effect of convergence.

[0051] In addition, the reflector 3 can also choose its profile in the second cross section M2 to be a straight line, a concave line, or a convex line, etc. according to the different needs of the ultrasonic wave distribution in the longitudinal direction or the length direction X of the detection area.

[0052] In view of the above structure, the ultrasonic wave detection device of the present application redistributes the range of the ultrasonic wave in the detection area through the reflector 3. The ultrasonic wave distribution range is stretched or reduced in the transverse direction of the detection area, or the ultrasonic wave distribution range is stretched or reduced in the longitudinal direction of the detection area, or the ultrasonic wave distribution is changed in different dimensions of the detection area at the same time. The implementation of the above technical effects needs to be achieved by setting different shapes of the reflecting surface 31 of the reflector 3. The reflecting surface 31 can be set to a symmetrical shape or an asymmetrical shape.

[0053] Since the ultrasonic wave detection device requires that the ultrasonic probe 1 and the reflector 3 do not move relative to the mounting bracket 2 when in use, they can all be fixedly installed with the mounting bracket 2. In the embodiment shown in Figure 2 The reflector 3 is fixedly connected to the end of the mounting bracket 2, and optionally, the reflector 3 is a reflecting plate, which is fixed to the mounting bracket 2 by bonding, welding or fastener 22 connection.

[0054] Preferably, the reflector 3 is integrally formed at the end of the mounting bracket 2, that is, the reflecting surface 31 is formed at the end of the mounting bracket 2 to reflect the ultrasonic wave of the ultrasonic probe 1.

[0055] The ultrasonic probe 1 is of the prior art. For example, the probe part 12 is responsible for the transmission and reception of ultrasonic waves, and the components for energy conversion and signal amplification are arranged inside the housing of the ultrasonic probe. The control panel 6 is arranged on the mounting frame 2 and is connected to the ultrasonic probe 1, and is used to control the entire working system, for example, first controlling the probe part 12 to emit ultrasonic waves, then judging the ultrasonic waves received by the probe part 12, judging whether the received ultrasonic waves are the ultrasonic waves emitted by itself, and finally identifying the size of the received ultrasonic waves.

[0056] The ultrasonic probe 1 has many different structures, which can be divided into straight probes, inclined probes, surface wave probes, Lamb wave probes, double probes (one for transmission and one for reception), etc. Those skilled in the art can select specific embodiments according to the disclosed technology, and no specific limitations are made here.

[0057] Further, as shown in Figure 5 , the reflector 3 further comprises a sound wave absorbing device 11, which is arranged on the ultrasonic probe 1 (as shown in Figure 5 a) or the reflector 3 (as shown in Figure 5 b) or between the two, and is located on the ultrasonic wave transmission path between the ultrasonic probe 1 and the reflector 3 and / or on the ultrasonic wave emission direction of the reflector 3. The cross section of the sound wave absorbing device 11 is elliptical, rectangular, oval-like or rectangular-like. By arranging the sound wave absorbing device 11, the range of sound wave propagation is further limited or changed.

[0058] In one application of the present application, the ultrasonic probe 1 is installed in the horizontal direction, and the reflector 3 is arranged outwardly inclined relative to the ultrasonic probe 1, and the reflector 3 reflects the ultrasonic waves from the ultrasonic probe 1 downward.

[0059] According to the ultrasonic detection device described above, when in use, the ultrasonic detection device can be used and installed above the passage, the reflector 3 reflects the ultrasonic waves to the ground of the passage, and the ultrasonic waves returned from the ground of the passage are reflected by the reflector 3 and then received by the ultrasonic probe 1. By arranging the shape of the reflector 3 on the first cross section M1 and the second cross section M2, the detection area of the ultrasonic waves is adjusted to adapt to the passage, and the detection width can cover the lateral width range of the passage, preventing pedestrians at the edges of the passage from being missed. As shown in Figure 3 , the structure of the reflector 3, the detection range in the front-rear direction of the passage in the direction in which people walk is reduced, which is sufficient to make a single person enter the longitudinal detection range one by one, and the detection range in the direction of the flow of people in and out is matched with the stride distance of the flow of people, greatly reducing the situation that front and rear pedestrians are detected at the same time, and strengthening the resolution ability of the ultrasonic waves to front and rear pedestrians. Accordingly, by using the ultrasonic detection device of the present application, pedestrians passing through the passage can be more accurately detected, and the ultrasonic detection device is particularly suitable for the flow statistics of supermarkets, shopping malls, stores or cultural and tourism museums.

[0060] For different applications, the different structures of the reflector 3 in the ultrasonic testing device of this application can produce various changes in the distribution of ultrasonic energy, such as... Figures 6 to 10 The following are examples of different applications of reflector 3:

[0061] like Figure 6 The reflector 3 shown has a structure where the middle is thicker and the sides are thinner along the Y-axis to cause the ultrasonic waves from the ultrasonic probe 1 to diverge along the Y-axis; the middle is thicker and the sides are thinner along the X-axis to cause the ultrasonic waves from the ultrasonic probe 1 to diverge along the X-axis; the reflector 3 with the above structure causes the ultrasonic waves to diverge in all dimensions.

[0062] like Figure 7 The reflector 3 shown has a structure where the middle is thinner and the sides are thicker along the Y-axis to converge the ultrasonic waves from the ultrasonic probe 1 along the Y-axis; the middle is thinner and the sides are thicker along the X-axis to converge the ultrasonic waves from the ultrasonic probe 1 along the X-axis; the reflector 3 with the above structure converges the ultrasonic waves in all dimensions.

[0063] like Figure 8 The reflector 3 shown has a structure where the middle of the reflector 3 is thinner and the two sides are thicker along the Y-axis direction, so that the ultrasonic waves from the ultrasonic probe 1 converge along the Y-axis direction; the middle of the reflector 3 is thicker and the two sides are thinner along the X-axis direction, so that the ultrasonic waves from the ultrasonic probe 1 diverge along the X-axis direction; the reflector 3 with the above structure causes the distribution of ultrasonic waves in the X-axis direction and the Y-axis direction to be different.

[0064] like Figure 9 The reflector 3 shown has a structure where the middle is thicker and the sides are thinner along the Y-axis, so that the ultrasonic waves from the ultrasonic probe 1 diverge along the Y-axis; the thickness of the reflector 3 does not change along the X-axis; the reflector 3 with the above structure makes the distribution of ultrasonic waves change only in the Y-axis direction, so that the ultrasonic waves diverge in the Y-axis direction.

[0065] like Figure 10 The reflector 3 shown has a structure where the middle of the reflector 3 is thin and the two sides are thick along the X-axis, so that the ultrasonic waves from the ultrasonic probe 1 converge along the X-axis; the thickness of the reflector 3 does not change along the Y-axis; the reflector 3 with the above structure makes the distribution of ultrasonic waves change only in the X-axis direction, so that the ultrasonic waves converge in the X-axis direction.

[0066] The preferred embodiments of the present application have been described above in detail. It should be understood that modifications and variations to the present application can be affected by those skilled in the art without departing from the scope of the application. Accordingly, it is intended that all of the subject matter of the above description and the claims be interpreted to encompass all such modifications and changes.

Claims

1. An ultrasonic testing apparatus characterized by comprising: The ultrasonic detection device is arranged above the entrance and / or exit passage of the space to match a specific detection range, and is used to detect the flow of people in the detection range, comprising: an ultrasonic probe (1) for emitting ultrasonic waves and receiving echoes; a reflector (3) arranged at a distance from the ultrasonic probe (1) to redistribute the energy of the ultrasonic waves to change the ultrasonic detection range; the detection range matches the average step distance of the flow of people in the direction of the flow of people, and the detection range matches the width of the entrance and / or exit of the space in the direction perpendicular to the direction of the flow of people.

2. The ultrasonic testing apparatus according to claim 1, characterized by The space is a supermarket, a shopping mall, a store or a museum.

3. The ultrasonic testing apparatus according to claim 1, characterized by The reflector (3) comprises a reflecting surface (31).

4. The ultrasonic testing apparatus according to claim 3, characterized by The reflecting surface (31) comprises a converging area and / or a diverging area, the converging area converges the ultrasonic waves from the ultrasonic probe (1) in the X-axis direction and / or the Y-axis direction, and the diverging area diverges the ultrasonic waves from the ultrasonic probe (1) in the X-axis direction and / or the Y-axis direction.

5. The ultrasonic testing apparatus according to claim 3, characterized by The reflector (3) is a reflector, and the middle of the reflector (3) is thicker than the two sides in the X-axis direction and / or the Y-axis direction, so that the ultrasonic waves from the ultrasonic probe (1) diverge in the corresponding direction.

6. The ultrasonic testing apparatus according to claim 3, characterized by The reflector (3) is a reflector, and the two sides of the reflector (3) are thicker than the middle in the X-axis direction and / or the Y-axis direction, so that the ultrasonic waves from the ultrasonic probe (1) converge in the corresponding direction.

7. The ultrasonic testing apparatus of claim 3, wherein The ultrasonic probe (1) is installed in the horizontal direction, the reflecting surface (3) is arranged outwardly inclined relative to the ultrasonic probe (1), and the reflecting surface (3) reflects the ultrasonic waves from the ultrasonic probe (1) and propagates downward.

8. The ultrasonic testing apparatus of claim 3, wherein, The reflector (3) further comprises an acoustic wave absorbing device (11) arranged on the ultrasonic probe (1) or the reflecting plate (3) or between the two.

9. The ultrasonic testing apparatus of claim 1, wherein, A mounting bracket (2) is further provided for mounting the ultrasonic probe (1).

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