Ultrasonic inspection device using upper and lower probe modules

Abstract

The present invention relates to an ultrasonic inspection device using an upper probe module and a lower probe module, and includes: a lower probe module having a lower transducer and a lower water jacket; and an upper probe module disposed above an object and having an upper transducer and an upper water jacket; and a trigger control unit that controls the time when ultrasonic waves are generated in the lower transducer and the time when ultrasonic waves are generated in the upper transducer. The device is characterized in that the object is not immersed in a liquid, which is a transmission medium for ultrasonic transmission, but liquid is sprayed onto the object from the lower water jacket and the upper water jacket.

Description

[Technical Field]

[0001] The present invention relates to an ultrasonic inspection apparatus using an upper probe module and a lower probe module, and more particularly, to an ultrasonic inspection apparatus using an upper probe module and a lower probe module that can inspect an object through the upper probe module and the lower probe module, which generate ultrasonic waves from the upper and lower parts of the object toward the object in order to inspect the upper and lower parts of the object simultaneously. [Background technology]

[0002] An ultrasonic inspection device is a device that irradiates an object with ultrasonic waves through a probe module, receives reflected or transmitted ultrasonic waves at the probe module, and creates an image. Ultrasonic inspection devices can detect minute defects, so they require high resolution.

[0003] The ultrasonic inspection method using an ultrasonic inspection device requires a transmission medium for transmitting ultrasonic waves. A liquid is used as the ultrasonic transmission medium to prevent attenuation of the ultrasonic waves, and water is a commonly used liquid.

[0004] In a conventional ultrasonic inspection method, a water tank is filled with water, a product is placed in the water, and a probe module is positioned above the product, so that the product can be inspected while being partially immersed in the water.

[0005] However, conventional ultrasound inspection devices with a probe module mounted on the top of a target object have the following problems: In conventional ultrasound inspection devices, the probe module, which emits ultrasound and receives reflected signals, is mounted only on one side of the target object, such as on the top of the target object.

[0006] In a conventional ultrasound inspection device, a probe module is disposed above an object, so that an inspection is performed on the upper part of the object. However, if an inspection is performed only on the upper part of an object that requires inspection of both the upper and lower parts, there is a problem in that after scanning the upper part of the object, the lower part of the object must be scanned by flipping and moving the object.

[0007] If an inspection is performed using an ultrasound inspection device equipped with a probe module only on the upper part of the object, the process time is lengthened due to the inversion and movement of the object.Furthermore, when the alignment is performed by inverting and moving the object after scanning the upper part of the object, position alignment tolerance occurs, which makes it impossible to perform linked processing between the signal processing data scanned on the upper and lower parts of the object.

[0008] In addition, if air bubbles are mixed in water, which is an ultrasonic wave transmission medium of an ultrasonic inspection device, the air bubbles may cause ultrasonic attenuation. However, conventional ultrasonic inspection devices have a problem in that they do not include a separate device for removing air bubbles from the water supplied as a transmission medium. Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention is intended to solve the above-mentioned problems, and more particularly, to provide an ultrasonic inspection device using an upper probe module and a lower probe module that can inspect an object through the upper probe module and the lower probe module, which generate ultrasonic waves from the upper and lower parts of the object toward the object in order to inspect the upper and lower parts of the object simultaneously. [Means for solving the problem]

[0010] In order to solve the above-mentioned problems, an ultrasonic inspection apparatus using an upper probe module and a lower probe module according to the present invention is an ultrasonic inspection apparatus for inspecting an object using ultrasonic waves, and includes: a lower probe module disposed below the object and capable of generating ultrasonic waves from the lower part of the object toward the object or receiving ultrasonic waves from the lower part of the object; an internal space into which one side of the lower transducer can be inserted, and a lower water jacket in which the internal space is filled with liquid; an upper probe module disposed above the object and capable of generating ultrasonic waves from the upper part of the object toward the object or receiving ultrasonic waves from the upper part of the object; and an upper water jacket in which the internal space is filled with liquid; and further includes a trigger controller for controlling a time point at which the lower transducer generates ultrasonic waves and a time point at which the upper transducer generates ultrasonic waves, and the object is not immersed in liquid, which is a transmission medium for ultrasonic waves, and the liquid is sprayed onto the object from the lower water jacket and the upper water jacket.

[0011] In order to solve the above-mentioned problems, in an ultrasonic inspection device using an upper probe module and a lower probe module according to the present invention, the central axis of the lower transducer of the lower probe module and the central axis of the upper transducer of the upper probe module may be arranged on the same line.

[0012] In order to solve the above-mentioned problems, the ultrasonic inspection device using the upper probe module and the lower probe module of the present invention may include a first receiving unit in the lower probe module that can receive ultrasonic waves generated by the upper transducer of the upper probe module or the lower transducer of the lower probe module, and the upper probe module may include a second receiving unit that can receive ultrasonic waves generated by the lower transducer of the lower probe module or the upper transducer of the upper probe module.

[0013] In order to solve the above-mentioned problems, the trigger control unit of the ultrasonic inspection device using the upper probe module and the lower probe module of the present invention may generate ultrasonic waves from the lower transducer and, after a specified time, generate ultrasonic waves from the upper transducer, or may generate ultrasonic waves from the upper transducer and, after a specified time, generate ultrasonic waves from the lower transducer.

[0014] In order to solve the above-mentioned problems, the trigger control unit of the ultrasonic inspection apparatus using the upper probe module and the lower probe module of the present invention can generate ultrasonic waves alternately from the lower transducer and the upper transducer with a specified time delay.

[0015] In order to solve the above-mentioned problems, the present invention provides an ultrasonic inspection device using an upper probe module and a lower probe module, wherein the lower probe module and the upper probe module scan the object while moving along the object, and the trigger control unit generates ultrasonic waves from the lower transducer when the lower probe module and the upper probe module move in a first direction, and generates ultrasonic waves from the upper transducer when the lower probe module and the upper probe module move in a second direction.

[0016] In order to solve the above-mentioned problems, the first direction and the second direction of the ultrasonic inspection apparatus using the upper probe module and the lower probe module of the present invention are opposite to each other.

[0017] In an ultrasonic inspection device using the upper probe module and the lower probe module of the present invention to solve the above-mentioned problems, the central axis of the lower transducer of the lower probe module and the central axis of the upper transducer of the upper probe module may not be aligned on the same line.

[0018] In order to solve the above-mentioned problems, the ultrasonic inspection device using the upper probe module and the lower probe module of the present invention may include a first receiving unit in the lower probe module that can receive ultrasonic waves generated by the lower transducer of the lower probe module, and a second receiving unit in the upper probe module that can receive ultrasonic waves generated by the upper transducer of the upper probe module.

[0019] The trigger control unit of the ultrasonic inspection apparatus using the upper probe module and the lower probe module of the present invention, which solves the above-mentioned problems, can generate ultrasonic waves from the lower transducer and the upper transducer simultaneously.

[0020] In order to solve the above-mentioned problems, the trigger control unit of the ultrasonic inspection apparatus using the upper probe module and the lower probe module of the present invention can generate ultrasonic waves alternately from the lower transducer and the upper transducer with a specified time delay. [Effects of the Invention]

[0021] The present invention relates to an ultrasonic inspection device using an upper probe module and a lower probe module, and has the advantage that an object can be inspected without inverting or moving the object through the upper probe module and the lower probe module, which generate ultrasonic waves from the top and bottom of the object toward the object.

[0022] In addition, the present invention has the advantage that the upper and lower parts of the object can be inspected without inverting or moving the object by performing inspection at the upper and lower parts of the object through the upper and lower probe modules, thereby reducing the process time.

[0023] In addition, the present invention has the advantage that the upper and lower parts of the object can be inspected without inverting or moving the object by performing inspection at the upper and lower parts of the object via the upper and lower probe modules, and thus the signal processing data scanned at the upper and lower parts of the object can be linked without positional alignment tolerances. [Brief explanation of the drawings]

[0024] [Figure 1] 1 is a view showing an ultrasonic inspection apparatus using an upper probe module and a lower probe module according to an embodiment of the present invention; [Figure 2] 1 is a view showing that the central axis of an upper transducer and the central axis of a lower transducer are aligned on the same line according to an embodiment of the present invention; [Figure 3] 10 is a diagram illustrating that the central axis of an upper transducer and the central axis of a lower transducer are not aligned on the same line according to an embodiment of the present invention. [Figure 4] 10 is a diagram illustrating an inspection of an object while moving an upper probe module and a lower probe module according to an embodiment of the present invention; [Figure 5]10 is a diagram showing that the sum of the time (tup) for generating ultrasound waves from an upper transducer and receiving reflected waves and the time (tdown) for generating ultrasound waves from a lower transducer and receiving reflected waves is smaller than the sum of the time (tmove) for moving from one trigger position to another trigger position according to an embodiment of the present invention. [Figure 6] 1 is a view showing a lower probe module and a lower liquid injector according to an embodiment of the present invention; [Figure 7] 1 is a view showing an upper probe module and an upper liquid injection unit according to an embodiment of the present invention; [Figure 8] 1 is a view showing a liquid supply unit, a pump, and a water tank connected to an upper water jacket and a lower water jacket according to an embodiment of the present invention. [Figure 9] 1 is a view showing a liquid supply unit connected to an upper water jacket and a lower water jacket according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0025] Various embodiments of the present invention will be described below with reference to the accompanying drawings. Various embodiments of the present invention may be modified in various ways and may have various embodiments. Specific embodiments are illustrated in the drawings and detailed descriptions thereof are provided. However, this is not intended to limit the various embodiments of the present invention to the specific embodiments, and it should be understood that the various embodiments of the present invention include all modifications and / or equivalents or alternatives within the spirit and technical scope of the various embodiments of the present invention. Similar reference numerals are used for similar components in the description of the drawings.

[0026] The terms "comprise" or "may comprise" as used in various embodiments of the present invention indicate the presence of the disclosed feature, operation, or component, etc., and do not limit the presence of one or more additional features, operations, or components, etc. Furthermore, in various embodiments of the present invention, it should be understood that the terms "comprise" or "have" are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not preclude the presence or possible addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0027] When a component is referred to as being "coupled" to another component, it should be understood that the component may be directly coupled to the other component, but that there may be other components between the component and the other component. On the other hand, when a component is referred to as being "directly coupled" or "directly connected" to another component, it should be understood that there are no other components between the component and the other component.

[0028] The terms used in the various embodiments of the present invention are used to describe particular embodiments and are not intended to limit the various embodiments of the present invention. A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0029] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present invention belong.

[0030] Terms defined in commonly used dictionaries should be construed to have a meaning consistent with the contextual meaning of the relevant art, and should not be construed as idealized or overly formal unless expressly defined in various embodiments of the present invention.

[0031] The present invention relates to an ultrasonic inspection apparatus using an upper probe module and a lower probe module, and more particularly to an ultrasonic inspection apparatus using an upper probe module and a lower probe module, which can inspect an object through the upper probe module and the lower probe module, generating ultrasonic waves from the upper and lower parts of the object toward the object in order to inspect the upper and lower parts of the object simultaneously. Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0032] The ultrasonic inspection device using the upper probe module and the lower probe module according to the embodiment of the present invention is for inspecting the object 10, and can inspect the object 10 by irradiating the object 10 with ultrasonic waves and receiving the reflected or transmitted ultrasonic waves in the probe module. The object 10 can be any product that can be subjected to ultrasonic inspection.

[0033] The ultrasonic inspection apparatus using the upper and lower probe modules according to the embodiment of the present invention includes a lower probe module 100, an upper probe module 200, and a trigger control unit 160.

[0034] 1 and 2, the lower probe module 100 includes a lower transducer 120 that is disposed under the target object 10 and can generate or receive ultrasonic waves from the lower portion of the target object 10 toward the target object 10, and an internal space into which one side of the lower transducer 120 can be inserted, and a lower water jacket 130 that is filled with liquid in the internal space.

[0035] The upper probe module 200 includes an upper transducer 220 that is disposed above the target object 10 and can generate or receive ultrasonic waves from above the target object 10 toward the target object 10, and an upper water jacket 230 that has an internal space into which one side of the upper transducer 220 can be inserted and in which the internal space is filled with liquid.

[0036] The ultrasonic inspection apparatus according to an embodiment of the present invention inspects the object 10 using ultrasonic waves, and thus the ultrasonic inspection apparatus according to an embodiment of the present invention can inspect the upper and lower surfaces of the object 10 simultaneously through the lower probe module 100 and the upper probe module 200 without inverting or moving the object 10.

[0037] In addition, the ultrasonic inspection device according to an embodiment of the present invention can simultaneously inspect the upper and lower surfaces of the object 10 by spraying liquid onto the object from the lower water jacket 130 and the upper water jacket 230 without immersing the object in liquid, which is a transmission medium for ultrasonic transmission.

[0038] The trigger control unit 160 can control the time point at which the lower transducer 120 generates ultrasound waves and the time point at which the upper transducer 220 generates ultrasound waves.

[0039] If the lower probe module 100 and the upper probe module 200 are used simultaneously to inspect the target object 10, interference may occur between the ultrasonic waves generated by the lower transducer 120 and the upper transducer 220.

[0040] The trigger control unit 160 is provided to prevent this, and by controlling the time at which ultrasound waves are generated by the lower transducer 120 and the upper transducer 220 through the trigger control unit 160, it is possible to prevent interference between the ultrasound waves generated by the lower transducer 120 and the upper transducer 220.

[0041] The ultrasound inspection device according to the embodiment of the present invention can inspect the object 10 through an ultrasound echo / reflection method or an ultrasound transmission method.

[0042] The ultrasonic echo / reflection method generates ultrasonic waves on one side (top or bottom) of the object 10 and receives the reflected waves reflected from the top and bottom (or bottom and top) of the object 10. If there is a problem such as a crack inside the object 10, other reflected waves are detected between the reflected waves from the top and bottom (or bottom and top) of the object 10, and through this, defects in the object 10 can be inspected.

[0043] The ultrasound transmission method generates ultrasound on one side (top or bottom) of the object 10 and receives the transmitted ultrasound on the other side (bottom or top) of the object 10 to inspect the object 10.

[0044] Referring to FIG. 2, according to an embodiment of the present invention, the central axis 121 of the lower transducer 120 of the lower probe module 100 and the central axis 221 of the upper transducer 220 of the upper probe module 200 may be arranged on the same line.

[0045] Also, referring to FIG. 3, according to another embodiment of the present invention, the central axis 121 of the lower transducer 120 of the lower probe module 100 and the central axis 221 of the upper transducer 220 of the upper probe module 200 are not arranged on the same line.

[0046] The lower probe module 100 and the upper probe module 200 can move in the x, y, and z-axis directions. The lower probe module 100 and the upper probe module 200 can move independently in the x, y, and z-axis directions, and the lower probe module 100 and the upper probe module 200 can move together in the x, y, and z-axis directions.

[0047] That is, the lower probe module 100 and the upper probe module 200 may move independently, or may be coupled together and move simultaneously. Referring to Fig. 4, the lower probe module 100 and the upper probe module 200 may be moved to inspect various points on the target object 10.

[0048] 4, a trigger position 161, which is a position at which the target object 10 is irradiated with ultrasound, can be adjusted through the trigger controller 160. Specifically, by controlling the timing at which the lower transducer 120 and the upper transducer 220 generate ultrasound through the trigger controller 160 while moving the lower probe module 100 and the upper probe module 200, the trigger position 161, which is a position at which the target object 10 is irradiated with ultrasound, can be adjusted.

[0049] Referring to FIG. 2, according to one embodiment of the present invention, if the central axis 121 of the lower transducer 120 of the lower probe module 100 and the central axis 221 of the upper transducer 220 of the upper probe module 200 are arranged on the same line, both an ultrasonic echo reflection method and an ultrasonic transmission method can be used.

[0050] Specifically, the ultrasonic signals generated by the lower transducer 120 of the lower probe module 100 and the upper transducer 220 of the upper probe module 200 detect the signals reflected from each layer of the object 10, and the object 10 can be inspected in a reflection manner at the top and bottom of the object 10.

[0051] In this case, if ultrasonic signals are generated simultaneously from the lower transducer 120 of the lower probe module 100 and the upper transducer 220 of the upper probe module 200, interference may occur between the ultrasonic signals.

[0052] Referring to FIG. 5, in order to prevent interference between the ultrasonic signals generated by the lower transducer 120 and the upper transducer 220, the trigger control unit 160 may generate ultrasonic waves from the lower transducer 120 and then generate ultrasonic waves from the upper transducer 220 after a specified time, or may generate ultrasonic waves from the upper transducer 220 and then generate ultrasonic waves from the lower transducer 120 after a specified time.

[0053] Referring to FIG. 5, when an inspection is performed through the upper probe module 200 and the lower probe module 100 at one trigger position 161, the time (t up ) and the time (t down ) is the time (t move ) is smaller than the sum of

[0054] In this way, the time (t up ) and the time (t down ) moves from one trigger position 161 to another trigger position 161 (t move ) and there is a time difference between the time when the upper transducer 220 and the lower transducer 120 generate ultrasound, the object 10 can be inspected at one trigger position 161 through a reflection method without ultrasound interference.

[0055] Here, the time it takes to move from one trigger position 161 to another trigger position 161 (t move ) can be derived by taking into consideration the distance (d) between one trigger position 161 and another trigger position 161 and the speed (v) at which the lower probe module 100 and the upper probe module 200 move.

[0056] In the case of the transmission method, the ultrasonic signals generated by the lower transducer 120 of the lower probe module 100 and the upper transducer 220 of the upper probe module 200 detect the signals passing through the object 10, and the object 10 can be inspected in a transmission method at the top and bottom of the object 10.

[0057] According to an embodiment of the present invention, the lower probe module 100 may be provided with a first receiving unit 122 that receives ultrasonic waves generated by the upper transducer 220 of the upper probe module 200 or the lower transducer 120 of the lower probe module 100, and the upper probe module 200 may be provided with a second receiving unit 222 that receives ultrasonic waves generated by the lower transducer 120 of the lower probe module 100 or the upper transducer 220 of the upper probe module 200.

[0058] When the central axis 121 of the lower transducer 120 of the lower probe module 100 and the central axis 221 of the upper transducer 220 of the upper probe module 200 are arranged on the same line, the ultrasonic signal generated in the lower transducer 120 and transmitted through each layer of the object 10 can be received through the second receiving unit 222 to inspect the object 10.

[0059] In addition, if the central axis 121 of the lower transducer 120 of the lower probe module 100 and the central axis 221 of the upper transducer 220 of the upper probe module 200 are arranged on the same line, the ultrasonic signal generated in the upper transducer 220 and transmitted through each layer of the object 10 can be received through the first receiving unit 122 to inspect the object 10.

[0060] In the case of the ultrasonic transmission method, it is very difficult to align the acoustic axis of the transmitter (transducer) that generates the ultrasonic waves and the receiver that receives the ultrasonic waves, and precise alignment of the acoustic axis of the transmitter and receiver is required to accurately inspect the target object 10.

[0061] However, as in one embodiment of the present invention, by arranging the central axis 121 of the lower transducer 120 of the lower probe module 100 and the central axis 221 of the upper transducer 220 of the upper probe module 200 on the same line, and providing the first receiving unit 122 in the lower probe module 100 and the second receiving unit 222 in the upper probe module 200, signals related to sound axis alignment at the top and bottom of the target object 10 can be compared to secure the same ultrasonic signal having the maximum size for the same target object 10, thereby achieving optimization for sound axis alignment.

[0062] Furthermore, as in one embodiment of the present invention, the central axis 121 of the lower transducer 120 of the lower probe module 100 and the central axis 221 of the upper transducer 220 of the upper probe module 200 are arranged on the same line, and the first receiving unit 122 is provided in the lower probe module 100, while the second receiving unit 222 is provided in the upper probe module 200. This optimizes the alignment of the sound axis, thereby minimizing positional errors even when a reflection method is used simultaneously at the top and bottom of the same target object 10.

[0063] According to an embodiment of the present invention, the first receiving unit 122 may receive ultrasonic waves generated by the lower transducer 120 of the lower probe module 100. That is, the first receiving unit 122 may receive ultrasonic waves generated by the upper transducer 220, or the first receiving unit 122 may receive ultrasonic waves generated by the lower transducer 120 and returning to the lower transducer 120.

[0064] In addition, the first receiving unit 122 may be provided inside the lower transducer 120, or the second receiving unit 122 may be provided outside the lower transducer 120.

[0065] In addition, the first receiving unit 122 may be provided inside the trigger control unit 160, or the second receiving unit 122 may be provided outside the trigger control unit 160.

[0066] According to an embodiment of the present invention, the second receiving unit 222 may receive ultrasonic waves generated by the upper transducer 220 of the upper probe module 200. That is, the second receiving unit 222 may receive ultrasonic waves generated by the lower transducer 120, or the second receiving unit 222 may receive ultrasonic waves generated by the upper transducer 220 and returning to the upper transducer 220.

[0067] In addition, the second receiving unit 222 may be provided inside the upper transducer 220, or the second receiving unit 222 may be provided outside the upper transducer 220.

[0068] In addition, the second receiving unit 222 may be provided inside the trigger control unit 160, or the second receiving unit 222 may be provided outside the trigger control unit 160.

[0069] According to an embodiment of the present invention, an ultrasound echo / reflection method and an ultrasound transmission method may be used in combination. If the central axis 121 of the lower transducer 120 of the lower probe module 100 and the central axis 221 of the upper transducer 220 of the upper probe module 200 are aligned on the same line and an ultrasound signal is generated from the upper transducer 220, the ultrasound signal reflected from each layer of the target object 10 is received by the upper transducer 220, and the ultrasound signal transmitted through the target object 10 is received by the first receiving unit 122 of the lower probe module 100, thereby obtaining data related to both the reflection method and the transmission method of the target object 10.

[0070] In addition, when an ultrasonic signal is generated by the lower transducer 120, the ultrasonic signal reflected from each layer of the object 10 is received by the lower transducer 120, and the ultrasonic signal that has passed through the object 10 is received by the second receiving unit 222 of the upper probe module 200, thereby obtaining both data related to the reflection and transmission modes of the object 10.

[0071] According to an embodiment of the present invention, the trigger control unit 160 may alternately generate ultrasonic waves from the lower transducer 120 and the upper transducer 220 with a designated time difference.

[0072] Specifically, the lower transducer 120 and the upper transducer 220 alternately generate ultrasonic waves, so that the object 10 can be inspected in a point-crossing manner at the top and bottom of the object 10 .

[0073] According to an embodiment of the present invention, the lower probe module 100 and the upper probe module 200 scan the target object 10 while moving along the target object 10, and the trigger control unit 160 may generate ultrasound waves in the lower transducer 120 when the lower probe module 100 and the upper probe module 200 move in a first direction.

[0074] Specifically, referring to FIG. 5, when the lower probe module 100 and the upper probe module 200 move in the forward direction (first direction, the direction of the arrow in FIG. 5), the trigger control unit 160 can generate ultrasound waves in the lower transducer 120 to inspect the target object 10.

[0075] In addition, the trigger control unit 160 may cause the upper transducer 220 to generate ultrasonic waves when the lower probe module 100 and the upper probe module 200 move in a second direction.

[0076] Specifically, referring to FIG. 5, the trigger control unit 160 can generate ultrasound waves in the upper transducer 220 to inspect the target object 10 when the lower probe module 100 and the upper probe module 200 move in opposite directions (second direction, opposite to the arrow in FIG. 5).

[0077] That is, when the lower probe module 100 and the upper probe module 200 move in the forward direction, the object 10 can be inspected through the lower transducer 120, and when the lower probe module 100 and the upper probe module 200 move in the reverse direction, the object 10 can be inspected through the upper transducer 220.

[0078] According to an embodiment of the present invention, the first direction and the second direction may be opposite to each other. Specifically, if the first direction is a forward direction, the second direction may be a reverse direction.

[0079] However, the first direction may be a reverse direction and the second direction may be a forward direction. That is, when the lower probe module 100 and the upper probe module 200 move in a forward direction (second direction, the direction of the arrow in FIG. 5), the target object 10 may be inspected through the upper transducer 220. When the lower probe module 100 and the upper probe module 200 move in a reverse direction (first direction, the direction opposite to the arrow in FIG. 5), the target object 10 may be inspected through the lower transducer 120. In addition, the first direction and the second direction are not limited to being opposite directions, and the first direction and the second direction may be set in different directions.

[0080] As described above, the ultrasound inspection apparatus according to the embodiment of the present invention can inspect the object 10 by generating ultrasound waves from the lower transducer 120 and the upper transducer 220 in a line crossing manner.

[0081] Referring to FIG. 3, in another embodiment of the present invention, the central axis 121 of the lower transducer 120 of the lower probe module 100 and the central axis 221 of the upper transducer 220 of the upper probe module 200 are not aligned on the same line, and the object 10 can be inspected using an ultrasound echo / reflection method.

[0082] Referring to FIG. 3, the central axes of the lower transducer 120 and the upper transducer 220 are not arranged on the same line, so that the ultrasonic signals generated by the lower transducer 120 and the upper transducer 220 do not interfere with each other.

[0083] As described above, since the central axis 121 of the lower transducer 120 and the central axis 221 of the upper transducer 220 of the upper probe module 200 are not arranged on the same line, ultrasonic waves can be generated from the lower transducer 120 and the upper transducer 220 at the same time to inspect the object 10.

[0084] According to an embodiment of the present invention, the lower probe module 100 may be provided with a first receiving unit 122 capable of receiving ultrasonic waves generated by the lower transducer 120 of the lower probe module 100, and the upper probe module 200 may be provided with a second receiving unit 222 capable of receiving ultrasonic waves generated by the upper transducer 220 of the upper probe module 200.

[0085] The first receiving unit 122 may be provided inside the lower transducer 120, or may be provided outside the lower transducer 120. Alternatively, the first receiving unit 122 may be provided inside the trigger control unit 160, or may be provided outside the trigger control unit 160.

[0086] The second receiving unit 222 may be provided inside the upper transducer 220, or may be provided outside the upper transducer 220. Alternatively, the second receiving unit 222 may be provided inside the trigger control unit 160, or may be provided outside the trigger control unit 160.

[0087] The trigger control unit 160 can control the time when the lower transducer 120 generates ultrasound waves and the time when the upper transducer 220 generates ultrasound waves.

[0088] According to an embodiment of the present invention, when the central axis 121 of the lower transducer 120 and the central axis 221 of the upper transducer 220 of the upper probe module 200 are not aligned on the same line, the trigger control unit 160 can generate ultrasonic waves simultaneously from the lower transducer 120 and the upper transducer 220.

[0089] Since the central axis 121 of the lower transducer 120 and the central axis 221 of the upper transducer 220 of the upper probe module 200 are not aligned on the same line, no interference occurs between the ultrasonic waves generated by the lower transducer 120 and the upper transducer 220. Therefore, the trigger control unit 160 can inspect the target object 10 while simultaneously generating ultrasonic waves from the lower transducer 120 and the upper transducer 220.

[0090] Furthermore, according to an embodiment of the present invention, the trigger control unit 160 may alternately generate ultrasonic waves from the lower transducer 120 and the upper transducer 220 with a designated time difference.

[0091] Specifically, the trigger control unit 160 may generate ultrasound waves from the lower transducer 120 and then generate ultrasound waves from the upper transducer 220 after a specified time, or may generate ultrasound waves from the upper transducer 220 and then generate ultrasound waves from the lower transducer 120 after a specified time.

[0092] The lower probe module 100 of the ultrasonic inspection apparatus using the upper probe module and the lower probe module according to an embodiment of the present invention may include a lower housing 110, a lower transducer 120, a lower water jacket 130, and a lower liquid injection unit 140.

[0093] The lower housing 110 also serves as a housing for the lower probe module 100. The lower housing 110 is provided at the bottom of the target object 10, and the lower housing 110 includes the lower transducer 120. The lower housing 110 is connected to a moving device and is movable in the x, y, and z directions.

[0094] According to an embodiment of the present invention, the lower housing 110 may be moved, and the position of the lower transducer 120 provided in the lower housing 110 may be moved.

[0095] The lower transducer 120 is provided in the lower housing 110 and can generate or receive ultrasonic waves from the lower portion of the target 10 toward the target 10. The lower transducer 120 is a device that can generate ultrasonic waves and can irradiate the ultrasonic waves at the lower portion of the target 10 through the lower transducer 120.

[0096] Also, ultrasonic waves may be received through the lower transducer 120. Specifically, the lower transducer 120 may receive ultrasonic waves entering the lower transducer 120 while functioning as a receiver.

[0097] The lower water jacket 130 has an internal space into which one side of the lower transducer 120 is inserted, and the internal space of the lower water jacket 130 can be filled with liquid.

[0098] A transmission medium is required to transmit the ultrasound waves generated by the lower transducer 120 to the target object 10, and the transmission medium may be a liquid. The internal space of the lower water jacket 130 is filled with the transmission medium made of a liquid, and the transmission medium may be water. The following description will be focused on the case where the transmission medium is water.

[0099] One side of the lower transducer 120 may be disposed in the internal space of the lower water jacket 130. The lower water jacket 130 includes a lower outlet 131, which is also a through-hole formed in a direction from the inside of the lower water jacket 130 toward the target object 10.

[0100] According to an embodiment of the present invention, the target object is not immersed in a liquid, which is a transmission medium for transmitting ultrasound, but the inspection can be performed by spraying the liquid onto the target object through the lower water jacket 130. Specifically, the liquid is sprayed through the lower outlet 131 of the lower water jacket 130, and the sprayed liquid serves as a transmission medium, allowing ultrasound to be transmitted to the target object 10.

[0101] The ultrasonic waves generated by the lower transducer 120 may be irradiated onto the target object 10 through the lower outlet 131. Referring to Figure 6, water filled in the internal space of the lower water jacket 130 is also discharged through the lower outlet 131 of the lower water jacket 130.

[0102] The water is also a transmission medium for transmitting ultrasound, and water is discharged through the lower outlet 131, and ultrasound generated by the lower transducer 120 can be irradiated to the target object 10 through the water discharged through the lower outlet 131.

[0103] The water discharged through the lower discharge part 131 is moved to a water tank provided outside the lower housing 110, and the water moved to the water tank can be moved to the lower liquid inlet part 140 described later via a pump or the like.

[0104] 6, the lower liquid injector 140 may inject liquid into the internal space of the lower water jacket 130. The lower liquid injector 140 may be connected to a hose extending to the outside, and liquid may flow to the lower liquid injector 140 through the hose.

[0105] The liquid that has moved to the lower liquid injector 140 passes through the lower liquid injector 140 and moves into the internal space of the lower water jacket 130. Here, the liquid that passes through the lower liquid injector 140 and is injected into the internal space of the lower water jacket 130 is also water.

[0106] Referring to FIG. 6, the lower liquid injector 140 according to the embodiment of the present invention includes a lower nozzle 141 and a lower bubble discharge hole 150.

[0107] The lower nozzle 141 is also a nozzle through which liquid moves, communicating with the inner space of the lower water jacket 130. The lower nozzle 141 is a nozzle provided inside the lower liquid injector 140, and water may be injected into the lower water jacket 130 through the lower nozzle 141.

[0108] The lower bubble discharge hole 150 is connected to the lower nozzle 141. Specifically, the lower bubble discharge hole 150 is a hollow tube provided on the upper portion of the lower nozzle 141, and one end of the lower bubble discharge hole 150 may be connected to the lower nozzle 141.

[0109] The lower bubble discharge hole 150 is for removing bubbles from the water flowing through the lower nozzle 141. The water flowing through the lower nozzle 141 is a transmission medium for transmitting the ultrasonic waves generated by the lower transducer 120, and if bubbles are formed in the water stored in the lower nozzle 141, the ultrasonic waves may be attenuated by the bubbles.

[0110] The lower air bubble discharge hole 150 is provided to prevent this, and is provided above the lower nozzle 141, and can remove air bubbles from the water moving through the lower nozzle 141 through the lower air bubble discharge hole 150.

[0111] Specifically, when air bubbles are generated in the water, the air bubbles move to the top of the water and are discharged through the lower gas discharge hole 150 provided above the lower nozzle 141, thereby removing the air bubbles from the water passing through the lower nozzle 141.

[0112] The lower bubble discharge hole 150 includes a first bubble discharge hole 151 and a second bubble discharge hole 152. The first bubble discharge hole 151 is connected to the lower nozzle 141 and extends to an upper portion of the lower nozzle 141, so that the first bubble discharge hole 151 may extend vertically from an upper portion of the lower nozzle 141.

[0113] The second bubble discharge hole 152 is connected to the first bubble discharge hole 151 and extends horizontally or inclined downward from one end of the first bubble discharge hole 151. Water may be discharged from the lower discharge portion 131 of the lower water jacket 130.

[0114] In this case, if the lower air bubble discharge holes 150 include only the vertically extending first air bubble discharge holes 151, the water discharged from the lower discharge part 131 may flow into the lower air bubble discharge holes 150. If water flows into the lower air bubble discharge holes 150, it becomes difficult to remove air bubbles from the water moving through the lower liquid inlet part 140 via the lower air bubble discharge holes 150.

[0115] To prevent this, the second bubble discharge hole 152 extends horizontally or slopes downward from one end of the first bubble discharge hole 151. Since the second bubble discharge hole 152 extends horizontally or slopes downward from one end of the first bubble discharge hole 151, water discharged from the lower discharge part 131 can be prevented from flowing into the lower bubble discharge hole 150.

[0116] The lower nozzle 141 may be provided with a lower mesh filter 142. The lower mesh filter 142 may filter out foreign matter present in the water moving through the lower nozzle 141.

[0117] The lower nozzle 141 includes a lower fine nozzle unit 143 having a plurality of fine pipes. The lower fine nozzle unit 143 has a plurality of fine pipes, and water moving through the lower nozzle 141 passes through the lower fine nozzle unit 143.

[0118] Here, the plurality of fine pipes provided in the lower fine nozzle part 143 may extend in the same direction, parallel to the direction in which the lower nozzle 141 extends.

[0119] The lower fine nozzle part 143 is for forming a laminar flow. When the water moving through the lower nozzle 141 passes through the lower fine nozzle part 143, the water moves through the lower fine nozzle part 143 while forming a laminar flow.

[0120] The water passing through the lower nozzle 141 and flowing into the inner space of the lower water jacket 130 also serves as a transmission medium for transmitting the ultrasonic waves generated by the lower transducer 120 .

[0121] If turbulent flow occurs in the water passing through the lower nozzle 141 and flowing into the inner space of the lower water jacket 130, it is difficult for the lower transducer 120 to accurately irradiate the ultrasonic waves to the designated position of the target object 10.

[0122] The lower fine nozzle unit 143 is provided to prevent this. The water moving through the lower nozzle 141 moves through the lower fine nozzle unit 143 while forming a laminar flow, so that the ultrasound generated by the lower transducer 120 can be accurately irradiated to a designated position of the target object 10.

[0123] A lower buffer space 144 having the same diameter as or larger than the diameter of the lower fine nozzle portion 143 may be provided between the point where the lower nozzle 141 and the internal space of the lower water jacket 130 are connected and the lower fine nozzle portion 143.

[0124] Specifically, the water flowing into the lower nozzle 141 passes through the lower fine nozzle part 143 having a plurality of fine pipes, and then passes through the lower buffer space 144 having no fine pipes, and flows into the lower water jacket 130.

[0125] The lower buffer space 144 is also a space for preventing laminar flow water from mixing with each other. When the water passing through the lower fine nozzle part 143 immediately flows into the lower water jacket 130, the water movement space expands, and the laminar flow water can mix with each other.

[0126] In addition, if the diameter of the point where the lower nozzle 141 and the inner space of the lower water jacket 130 are connected is smaller than the diameter of the lower fine nozzle portion 143, some of the water forming a laminar flow may hit the wall.

[0127] The purpose of the lower buffer space 144 is to prevent this. The water that has passed through the lower fine nozzle unit 143, which has a plurality of fine pipes, passes through the lower buffer space 144, which does not have a plurality of fine pipes, and flows into the lower water jacket 130, thereby preventing the water that forms laminar flow from mixing with each other.

[0128] In the above description, it has been explained that the lower air bubble discharge hole 150 and the lower liquid injection part 140 of the lower water jacket 130 are provided with the lower mesh filter 142, the lower fine nozzle part 143, and the lower buffer space 144. However, if necessary, the lower air bubble discharge hole 150, the lower mesh filter 142, the lower fine nozzle part 143, and the lower buffer space 144 may not be provided.

[0129] The upper probe module 200 of the ultrasonic inspection apparatus using the upper probe module and the lower probe module according to the embodiment of the present invention includes an upper housing 210, an upper transducer 220, an upper water jacket 230, and an upper liquid injection unit 240.

[0130] The upper housing 210 also serves as a housing for the upper probe module 200. The upper housing 210 is provided on the upper part of the target object 10, and the upper transducer 220 is provided in the upper housing 210. The upper housing 210 is connected to a moving device and is movable in the x, y, and z directions.

[0131] According to an embodiment of the present invention, the upper housing 210 may be moved, and the position of the upper transducer 220 provided in the upper housing 210 may be moved.

[0132] The upper transducer 220 is provided in the upper housing 210 and can generate ultrasound waves from above the target object 10 toward the target object 10. The upper transducer 220 can generate or receive ultrasound waves. The upper transducer 220 is a device that can generate ultrasound waves, and can irradiate ultrasound waves from above the target object 10 through the upper transducer 220.

[0133] Also, ultrasonic waves may be received through the upper transducer 220. Specifically, the upper transducer 220 may receive ultrasonic waves entering the upper transducer 220 while functioning as a receiver.

[0134] The upper water jacket 230 has an internal space into which one side of the upper transducer 220 can be inserted, and the internal space of the upper water jacket 230 can be filled with liquid.

[0135] A transmission medium is required to transmit the ultrasound waves generated by the upper transducer 220 to the target object 10, and the transmission medium may be a liquid. The internal space of the upper water jacket 230 is filled with the transmission medium made of a liquid, and the transmission medium may be water. The following description will be focused on the case where the transmission medium is water.

[0136] One side of the upper transducer 220 may be disposed in the internal space of the upper water jacket 230. The upper water jacket 230 includes an upper discharge part 231, which is also a through-hole formed inside the upper water jacket 230 in a direction toward the target object 10.

[0137] According to an embodiment of the present invention, the target object is not immersed in a liquid, which is a transmission medium for transmitting ultrasound, but the inspection can be performed by spraying the liquid onto the target object through the upper water jacket 230. Specifically, the liquid is sprayed through the upper outlet 231 of the upper water jacket 230, and the sprayed liquid serves as a transmission medium, allowing ultrasound to be transmitted to the target object 10.

[0138] The ultrasonic waves generated by the upper transducer 220 may be irradiated onto the target object 10 through the upper outlet 231. Referring to Figure 7, water filled in the internal space of the upper water jacket 230 is also discharged through the upper outlet 231 of the upper water jacket 230.

[0139] The water is also a transmission medium for transmitting ultrasound, and water is discharged through the upper discharge part 231, and ultrasound generated by the upper transducer 220 can be irradiated to the target object 10 through the water discharged through the upper discharge part 231.

[0140] The water discharged through the upper discharge part 231 is moved to a water tank provided outside the upper housing 210, and the water moved to the water tank can be moved to the upper liquid inlet part 240 described later via a pump or the like.

[0141] 7, the upper liquid injector 240 may inject liquid into the internal space of the upper water jacket 230. The upper liquid injector 240 may be connected to a hose extending to the outside, and liquid may flow to the upper liquid injector 240 through the hose.

[0142] The liquid that has moved to the upper liquid injector 240 passes through the upper liquid injector 240 and moves into the internal space of the upper water jacket 230. Here, the liquid that passes through the upper liquid injector 240 and is injected into the internal space of the upper water jacket 230 is also water.

[0143] Referring to FIG. 7, the upper liquid injector 240 according to the embodiment of the present invention includes an upper nozzle 241 and an upper bubble discharge hole 250.

[0144] The upper nozzle 241 is also a nozzle through which liquid moves, communicating with the inner space of the upper water jacket 230. The upper nozzle 241 is a nozzle provided inside the upper liquid injector 240, and water can be injected into the upper water jacket 230 through the upper nozzle 241.

[0145] The upper bubble discharge hole 250 is provided in the upper water jacket 230 and extends from the inner space of the upper water jacket 230 .

[0146] Specifically, the upper bubble discharge hole 250 may be a hollow pipe provided on the upper part of the upper water jacket 230 , and one end of the upper bubble discharge hole 250 may be connected to the upper water jacket 230 .

[0147] The upper bubble discharge hole 250 is for removing bubbles from the water stored in the inner space of the upper water jacket 230. The water stored in the upper water jacket 230 is a transmission medium for transmitting the ultrasonic waves generated by the upper transducer 220, and if bubbles are formed in the water stored in the upper water jacket 230, the ultrasonic waves may be attenuated by the bubbles.

[0148] The upper air bubble discharge hole 250 is provided to prevent this, and water bubbles stored in the upper water jacket 230 can be removed through the upper air bubble discharge hole 250 .

[0149] Specifically, when bubbles are generated in water, the bubbles move to the top of the water and are discharged through the upper gas discharge hole 250 provided at the top of the upper nozzle 241, thereby removing the bubbles from the water passing through the upper nozzle 241.

[0150] The upper bubble discharge hole 250 may be provided at an upper portion of the upper water jacket 230, and water containing bubbles may be removed from the water stored in the inner space of the upper water jacket 230 through the upper bubble discharge hole 250. The upper bubble discharge hole 250 may extend vertically from the upper portion of the upper water jacket 230.

[0151] In addition, the upper bubble discharge hole 250 may be connected to the upper nozzle 241. Specifically, the upper bubble discharge hole 250 may be a hollow tube provided on the upper portion of the upper nozzle 241, and one end of the upper bubble discharge hole 250 may be connected to the upper nozzle 241.

[0152] The upper bubble discharge hole 250 serves to remove air bubbles from the water flowing through the upper nozzle 241. The upper bubble discharge hole 250 is provided above the upper nozzle 241, and water containing air bubbles may be removed from the water flowing through the upper nozzle 241 through the upper bubble discharge hole 250. The upper bubble discharge hole 250 may extend vertically from the upper nozzle 241 and be connected to the outside.

[0153] The upper nozzle 241 may be provided with an upper mesh filter 242. The upper mesh filter 242 may filter out foreign matter present in the water moving through the upper nozzle 241.

[0154] The upper nozzle 241 includes an upper fine nozzle portion 243 having a plurality of fine pipes. The upper fine nozzle portion 243 has a plurality of fine pipes, and water moving through the upper nozzle 241 passes through the upper fine nozzle portion 243.

[0155] Here, the fine pipes provided in the upper fine nozzle part 243 may extend in the same direction, parallel to the direction in which the upper nozzle 241 extends.

[0156] The upper fine nozzle part 243 is for forming a laminar flow. When the water moving through the upper nozzle 241 passes through the upper fine nozzle part 243, the water moves through the upper fine nozzle part 243 while forming a laminar flow.

[0157] The water passing through the upper nozzle 241 and flowing into the inner space of the upper water jacket 230 also serves as a transmission medium for transmitting the ultrasonic waves generated by the upper transducer 220 .

[0158] If turbulent flow occurs in the water passing through the upper nozzle 241 and flowing into the inner space of the upper water jacket 230, it is difficult for the upper transducer 220 to accurately irradiate the ultrasonic waves to the designated position of the target object 10.

[0159] The upper fine nozzle part 243 is provided to prevent this. The water moving through the upper nozzle 241 moves through the upper fine nozzle part 243 while forming a laminar flow, so that the ultrasound generated by the upper transducer 220 can be accurately irradiated to a designated position of the target object 10.

[0160] An upper buffer space 244 having a diameter equal to or larger than the diameter of the upper fine nozzle portion 243 may be provided between the point where the upper nozzle 241 and the internal space of the upper water jacket 230 are connected and the upper fine nozzle portion 243.

[0161] Specifically, the water flowing into the upper nozzle 241 passes through the upper fine nozzle part 243 having a plurality of fine pipes, and then passes through the upper buffer space 244 having no fine pipes, and flows into the upper water jacket 230.

[0162] The upper buffer space 244 also serves as a space for preventing laminar flow water from mixing with each other. When the water passing through the upper fine nozzle part 243 immediately flows into the upper water jacket 230, the water movement space expands, and the laminar flow water can mix with each other.

[0163] In addition, if the diameter of the point where the upper nozzle 241 and the inner space of the upper water jacket 230 communicate is smaller than the diameter of the upper fine nozzle portion 243, some of the water forming the laminar flow may hit the wall.

[0164] The purpose of this is to prevent this is provided by the upper buffer space 244. The water that has passed through the upper fine nozzle unit 243, which has a plurality of fine pipes, passes through the upper buffer space 244, which does not have a plurality of fine pipes, and flows into the upper water jacket 230, thereby preventing the water that forms laminar flow from mixing with each other.

[0165] In the above description, it has been explained that the upper air bubble discharge hole 250 of the upper water jacket 230 and the upper liquid injection part 240 are provided with the upper mesh filter 242, the upper fine nozzle part 243, and the upper buffer space 244. However, if necessary, the upper air bubble discharge hole 250, the upper mesh filter 242, the upper fine nozzle part 243, and the upper buffer space 244 may not be provided.

[0166] 8 and 9, the ultrasonic inspection apparatus using the upper and lower probe modules according to the embodiment of the present invention further includes a liquid supply unit 300.

[0167] The liquid supply unit 300 is connected to the lower liquid injecting unit 140 or the upper liquid injecting unit 240, and supplies liquid to the lower liquid injecting unit 140 or the upper liquid injecting unit 240.

[0168] The liquid supply unit 300 is provided outside the lower housing 110 and the upper housing 210, and may be connected to the lower liquid injector 140 or the upper liquid injector 240 via a hose or the like.

[0169] The liquid supply unit 300 according to the embodiment of the present invention includes a liquid storage tank 310, a liquid inlet unit 320, a liquid outlet unit 330, and a bubble outlet hole 340.

[0170] 8 and 9, the liquid storage tank 310 has a space therein for storing liquid. The liquid injector 320 injects liquid into the liquid storage tank 310, so that the liquid can be stored in the liquid storage tank 310 through the liquid injector 320.

[0171] The liquid discharge unit 330 discharges the liquid from the liquid storage tank 310. The liquid stored in the liquid storage tank 310 is discharged through the liquid discharge unit 330, and the liquid discharged through the liquid discharge unit 330 may be supplied to the lower liquid inlet unit 140 or the upper liquid inlet unit 240.

[0172] Referring to FIG. 8, the liquid supply unit 300 is connected to a liquid reservoir 321 and a liquid pump 322 , and liquid can be supplied to the liquid supply unit 300 through the liquid reservoir 321 and the liquid pump 322 .

[0173] Specifically, the liquid tank 321 and the liquid pump 322 are connected to the liquid injector 320, and water passing through the liquid tank 321 and the liquid pump 322 is supplied to the liquid storage tank 310 via the liquid injector 320.

[0174] The liquid discharge part 330 may include a fine nozzle part 350 having a plurality of fine pipes. Referring to Fig. 9, the fine nozzle part 350 includes a plurality of fine pipes, and the liquid moving through the liquid discharge part 330 passes through the fine nozzle part 350.

[0175] Here, the fine pipes provided in the fine nozzle unit 350 may extend in the same direction, parallel to the direction in which the liquid discharge unit 330 extends.

[0176] The fine nozzle unit 350 is for forming a laminar flow. When water passes through the fine nozzle unit 350 in the liquid discharge unit 330, it moves through the fine nozzle unit 350 while forming a laminar flow.

[0177] However, the mesh filter 360 may not be provided in the liquid storage tank 310 and the liquid discharge unit 330, or the mesh filter 360 may be provided in the liquid inlet unit 320, if necessary.

[0178] According to an embodiment of the present invention, the liquid stored in the liquid storage tank 310 may be water. The air bubble discharge hole 340 extends to the upper part of the liquid storage tank 310. Specifically, the air bubble discharge hole 340 may be a hollow tube provided at the upper part of the liquid storage tank 310, and one end of the air bubble discharge hole 340 may be connected to the liquid storage tank 310.

[0179] The bubble discharge hole 340 is for removing bubbles from the water stored in the internal space of the liquid storage tank 310. The water stored in the liquid storage tank 310 is a transmission medium for transmitting the ultrasonic waves generated by the lower transducer 120 or the upper transducer 220. If bubbles are formed in the water stored in the liquid storage tank 310, the ultrasonic waves may be attenuated by the bubbles.

[0180] The air bubble discharge hole 340 is provided to prevent this, and air bubbles can be removed before water is supplied to the lower liquid injector 140 or the upper liquid injector 240 through the air bubble discharge hole 340 .

[0181] Specifically, when air bubbles are generated in the water, the air bubbles move to the top of the water and are discharged through the air bubble discharge hole 340 provided at the top of the liquid storage tank 310, thereby removing the air bubbles before supplying water to the lower liquid inlet 140 or the upper liquid inlet 240.

[0182] The air bubble discharge hole 340 may be provided in the upper portion of the liquid storage tank 310, and may remove air bubbles from the water stored in the interior space of the liquid storage tank 310 through the air bubble discharge hole 340. The air bubble discharge hole 340 may extend vertically from the upper portion of the liquid storage tank 310.

[0183] 9, the liquid storage tank 310 and the liquid discharge unit 330 may be provided with a mesh filter 360. The mesh filter 360 may filter out foreign matter present in the water stored in the liquid storage tank 310 and the water flowing through the liquid discharge unit 330.

[0184] The ultrasonic inspection apparatus using the upper probe module and the lower probe module according to the above-described embodiment of the present invention has the following advantages.

[0185] An ultrasonic inspection apparatus using an upper probe module and a lower probe module according to an embodiment of the present invention has the advantage that an object can be inspected without inverting or moving the object through the upper probe module and the lower probe module, which generate ultrasonic waves from the top and bottom of the object toward the object.

[0186] In addition, the ultrasonic inspection apparatus using the upper and lower probe modules according to the embodiment of the present invention has the advantage that the upper and lower parts of the object can be inspected without inverting or moving the object by performing the inspection at the upper and lower parts of the object through the upper and lower probe modules, thereby reducing the processing time.

[0187] In addition, the ultrasound inspection apparatus using the upper and lower probe modules according to the embodiment of the present invention has the advantage that the upper and lower parts of the object can be inspected without inverting or moving the object by performing an inspection at the upper and lower parts of the object via the upper and lower probe modules, and thus the signal processing data scanned at the upper and lower parts of the object can be linked without positional alignment tolerances.

[0188] In addition, the ultrasonic inspection apparatus using the upper probe module and the lower probe module according to the embodiment of the present invention has an advantage in that it can prevent ultrasonic attenuation caused by air bubbles by forming air bubble exhaust holes in the lower probe module and the upper probe module that can remove water bubbles.

[0189] Although the present invention has been described in detail based on the preferred embodiments, the present invention is not limited to the above embodiments and various modifications may be made within the scope of the present invention. Therefore, the true technical scope of protection of the present invention should be determined by the technical spirit of the claims.

Claims

1. In an ultrasonic inspection device that inspects an object using ultrasonic waves, a lower probe module including a lower transducer disposed under a target object and capable of generating or receiving ultrasonic waves from the lower portion of the target object toward the target object; an internal space into which one side of the lower transducer can be inserted; and a lower water jacket in which the internal space is filled with liquid; an upper transducer disposed above a target body and capable of generating or receiving ultrasonic waves from above the target body toward the target body; and an upper probe module having an internal space into which one side of the upper transducer can be inserted, the internal space being filled with a liquid and having an upper water jacket; a trigger control unit that controls a time point at which the lower transducer generates ultrasound waves and a time point at which the upper transducer generates ultrasound waves; An ultrasonic inspection device using an upper probe module and a lower probe module, characterized in that the object is not immersed in a liquid that is a transmission medium for ultrasonic transmission, but the liquid is sprayed onto the object from the lower water jacket and the upper water jacket.

2. 2. The ultrasonic inspection device using an upper probe module and a lower probe module according to claim 1, wherein a central axis of the lower transducer of the lower probe module and a central axis of the upper transducer of the upper probe module are aligned on the same line.

3. the lower probe module is provided with a first receiving unit that can receive ultrasonic waves generated by the upper transducer of the upper probe module or the lower transducer of the lower probe module; 3. The ultrasonic inspection device using an upper probe module and a lower probe module according to claim 2, wherein the upper probe module is provided with a second receiving unit capable of receiving the ultrasonic waves generated by the lower transducer of the lower probe module or the ultrasonic waves generated by the upper transducer of the upper probe module.

4. The trigger control unit generating ultrasound waves from the lower transducer and, after a specified time, generating ultrasound waves from the upper transducer; 3. The ultrasonic inspection device using the upper probe module and the lower probe module according to claim 2, wherein the upper transducer generates ultrasonic waves, and after a specified time, the lower transducer generates ultrasonic waves.

5. The trigger control unit 3. The ultrasonic inspection device using an upper probe module and a lower probe module according to claim 2, wherein the lower transducer and the upper transducer alternately generate ultrasonic waves with a specified time difference.

6. the lower probe module and the upper probe module scan the object while moving along the object; The trigger control unit generating ultrasonic waves in the lower transducer when the lower probe module and the upper probe module move in a first direction; 3. The ultrasonic inspection device using an upper probe module and a lower probe module according to claim 2, wherein when the lower probe module and the upper probe module move in a second direction, the upper transducer generates ultrasonic waves.

7. 7. The ultrasonic inspection apparatus using an upper probe module and a lower probe module according to claim 6, wherein the first direction and the second direction are opposite to each other.

8. 2. The ultrasonic inspection device using an upper probe module and a lower probe module according to claim 1, wherein a central axis of the lower transducer of the lower probe module and a central axis of the upper transducer of the upper probe module are not aligned on the same line.

9. the lower probe module includes a first receiving unit configured to receive ultrasonic waves generated by the lower transducer of the lower probe module; 10. The ultrasonic inspection device using an upper probe module and a lower probe module according to claim 8, wherein the upper probe module is provided with a second receiving unit capable of receiving ultrasonic waves generated by the upper transducer of the upper probe module.

10. The trigger control unit 9. The ultrasonic inspection device using an upper probe module and a lower probe module according to claim 8, wherein the lower transducer and the upper transducer simultaneously generate ultrasonic waves.

11. The trigger control unit 9. The ultrasonic inspection device using an upper probe module and a lower probe module according to claim 8, wherein the lower transducer and the upper transducer alternately generate ultrasonic waves with a specified time difference.

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