CN115856095A - Probe of electromagnetic ultrasonic transverse wave transducer and control method and device thereof - Google Patents
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Abstract
The application discloses a probe of an electromagnetic ultrasonic transverse wave transducer and a control method and device thereof. The probe includes: a plurality of permanent magnets; a plurality of array element coils; the permanent magnets are arranged on the upper layer of the array element coils, the distance between the two ends of each array element coil in the array element coils and the surface of the wheel to be detected is equal, the length of each array element coil in the array element coils is different, and the array element coils form ultrasonic transverse waves which are transmitted downwards in the wheel to be detected in a bias magnetic field generated by the permanent magnets according to alternating current. Through the application, the problem that the defects inside the wheel metal cannot be effectively identified by the electromagnetic ultrasonic transverse-wave transducer in the related art is solved.
Description
Technical Field
The application relates to the field of nondestructive testing research, in particular to a probe of an electromagnetic ultrasonic transverse wave transducer and a control method and device thereof.
Background
With the continuous development of computer technology and electromagnetic ultrasonic technology, electromagnetic ultrasonic detection plays a key role in the scene of detecting the safety of equipment, and meanwhile, ultrasonic detection is widely applied to important fields such as aerospace detection, energy detection and the like.
The conventional piezoelectric ultrasonic detection technology has more limit conditions on an object to be detected, for example, a liquid coupling agent is needed in the detection process, and the detection process is not suitable for being carried out in extreme environments such as high temperature, radiation, strong corrosion and the like. At present, defects inside wheel metal are generally detected by a piezoelectric ultrasonic detection technology, but the technology needs a couplant, and the detection process is influenced to a certain extent. Secondly, the ultrasonic waves generated by the piezoelectric ultrasonic detection technology are generally ultrasonic longitudinal waves, the attenuation is large, and accurate detection results cannot be obtained in a complex environment. Although the electromagnetic ultrasonic detection technology does not need to be applied to a coupling agent in the detection process, the conventional electromagnetic ultrasonic transverse transducer has low energy conversion efficiency, weak received defect echo signals and no good detection method for the internal defects of the wheel at present.
Aiming at the problem that the electromagnetic ultrasonic transverse wave transducer in the related technology can not effectively identify the defects in the metal of the wheel, an effective solution is not provided at present.
Disclosure of Invention
The present application mainly aims to provide a probe of an electromagnetic ultrasonic transverse wave transducer, and a control method and a control device thereof, so as to solve the problem that the electromagnetic ultrasonic transverse wave transducer in the related art cannot effectively identify defects inside wheel metal.
In order to achieve the above object, according to an aspect of an embodiment of the present invention, there is provided a probe of an electromagnetic ultrasonic transverse transducer, including: a plurality of permanent magnets; a plurality of array element coils; the permanent magnets are arranged on the upper layers of the array element coils, the distances between the two ends of each array element coil in the array element coils and the surface of the wheel to be detected are the same, the lengths of each array element coil in the array element coils are different, and the array element coils form ultrasonic transverse waves which are downward transmitted inside the wheel to be detected in bias magnetic fields generated by the permanent magnets according to alternating currents.
Further, the probe further comprises: and each permanent magnet in the plurality of permanent magnets is arranged in the upper layer space of the plurality of array element coils according to the radian of the wheel to be detected.
Further, the probe further comprises: the length-height ratio of each permanent magnet in the plurality of permanent magnets is 1:2.
further, the probe further comprises: the magnetic poles of every two adjacent permanent magnets in the plurality of permanent magnets are opposite.
Further, the probe further comprises: each array element coil in the plurality of array element coils is an array element coil integrating receiving current signals and sending current signals.
According to an aspect of an embodiment of the present invention, there is provided an electromagnetic ultrasonic transverse-wave transducer provided with the probe of any one of the above.
According to an aspect of the embodiments of the present invention, there is provided a probe of an electromagnetic ultrasonic transverse transducer, and also provided a control method of a probe of an electromagnetic ultrasonic transverse transducer, the control method being applied to control the probe of an electromagnetic ultrasonic transverse transducer, including: generating a bias magnetic field by adopting a plurality of permanent magnets; controlling the time sequence of transmitting high-frequency pulse current signals to the array element coils by using a time delay phased array to form ultrasonic transverse waves which are transmitted downwards in the wheel to be detected; receiving a target signal through the plurality of array element coils, wherein the target signal is a signal returned after the ultrasonic transverse wave contacts the metal defect in the wheel to be detected; and processing the target signal to identify the metal defects in the wheel to be detected.
Further, the time sequence of transmitting the high-frequency pulse current signals to the array element coils is controlled by using the time delay phased array, and the ultrasonic transverse wave which is transmitted downwards in the wheel to be detected is formed by the following steps: and transmitting high-frequency pulse current signals to the array element coils according to the length sequence of each array element coil from short to long in the array element coils so as to enable all the array element coils in the array element coils to generate the ultrasonic transverse waves at the same time.
Further, before receiving a target signal through the plurality of array element coils, the method further includes: after the ultrasonic transverse wave contacts the defect in the metal of the wheel to be detected, reflecting the ultrasonic transverse wave to the surface of the wheel to be detected; when the surface of the wheel to be detected receives the ultrasonic transverse waves, particle vibration is generated, and the particle vibration generated on the surface of the wheel to be detected causes the plurality of array element coils in the bias magnetic field to generate target current; and generating the target signal according to the target current.
According to another aspect of the embodiments of the present invention, there is also provided a control device for a probe of an electromagnetic ultrasonic transverse transducer, the control device being applied to control the probe of the electromagnetic ultrasonic transverse transducer, including: a first generating unit for generating a bias magnetic field using a plurality of permanent magnets; the forming unit is used for controlling the time sequence of transmitting the high-frequency pulse current signals to the array element coils by using the time delay phased array to form ultrasonic transverse waves which are transmitted downwards in the wheel to be detected; the receiving unit is used for receiving a target signal through the plurality of array element coils, wherein the target signal is a signal returned after the ultrasonic transverse wave contacts the metal defect in the wheel to be detected; and the processing unit is used for processing the target signal so as to identify the metal defects in the wheel to be detected.
Further, the forming unit includes: and the transmission subunit is used for transmitting high-frequency pulse current signals to the plurality of array element coils according to the length sequence of each array element coil from short to long so as to enable all the array element coils in the plurality of array element coils to generate the ultrasonic transverse waves at the same time.
Further, the apparatus further comprises: the reflecting unit is used for reflecting the ultrasonic transverse waves to the surface of the wheel to be detected after the ultrasonic transverse waves contact the defects in the metal of the wheel to be detected before the target signals are received by the array element coils; the second generating unit is used for generating particle vibration when the surface of the wheel to be detected receives the ultrasonic transverse wave, and the particle vibration generated by the surface of the wheel to be detected causes the plurality of array element coils in the bias magnetic field to generate target current; and the third generating unit is used for generating the target signal according to the target current.
The probe of the electromagnetic ultrasonic transverse-wave transducer with the following structure is provided by the application: a plurality of permanent magnets; a plurality of array element coils; the permanent magnets are arranged on the upper layers of the array element coils, the distances between the two ends of each array element coil in the array element coils and the surface of the wheel to be detected are the same, the lengths of each array element coil in the array element coils are different, the array element coils form ultrasonic transverse waves which are downward transmitted inside the wheel to be detected in a bias magnetic field generated by the permanent magnets according to alternating currents, and the problem that in the related technology, an electromagnetic ultrasonic transverse wave transducer cannot effectively identify defects inside wheel metal is solved. Through the position of placing that sets up array element coil, after providing the alternating current for the array element coil that is in bias magnetic field, make array element coil produce waiting to detect the inside ultrasonic transverse wave of propagating downwards of wheel metal, realized that the ultrasonic transverse wave that makes the production can focus on metal defect position, and then reached the purpose that makes the testing result of the inside defect of wheel metal more accurate.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:
FIG. 1 is a schematic diagram of a probe of an electromagnetic ultrasonic transverse wave transducer according to an embodiment of the invention;
FIG. 2 is a schematic illustration of an alternative excitation and propagation of ultrasonic longitudinal waves in accordance with an embodiment of the present invention;
FIG. 3 is a schematic illustration of an alternative excitation and propagation of ultrasonic shear waves in accordance with embodiments of the present invention;
FIG. 4 is a schematic illustration of an alternative electromagnetic ultrasonic shear wave focusing effect on a wheel in accordance with an embodiment of the present invention;
FIG. 5 is an alternative aspect ratio of 1:1, schematic diagram of static magnetic field intensity and distribution of permanent magnet;
FIG. 6 is an alternative aspect ratio of 1:1.5, a schematic diagram of the static magnetic field intensity and distribution of the permanent magnet;
FIG. 7 is an alternative aspect ratio of 1:2, schematic diagram of static magnetic field intensity and distribution of permanent magnet;
FIG. 8 is an alternative aspect ratio of 1:2.5, a schematic diagram of the static magnetic field intensity and distribution of the permanent magnet;
FIG. 9 is a schematic view of an alternative three permanent magnet arrangement according to embodiments of the present invention;
FIG. 10 is a flow chart of an alternative method of controlling a probe of an electromagnetic ultrasonic transverse wave transducer in accordance with an embodiment of the present invention;
FIG. 11 is a schematic diagram of an alternative displacement plot of detection points before and after electromagnetic ultrasonic shear wave focusing in accordance with an embodiment of the present invention;
FIG. 12 is a schematic diagram of an alternative method for changing the focusing position of the electromagnetic ultrasonic transverse wave by using a delay phased array according to the embodiment of the invention;
FIG. 13 is a schematic diagram of an alternative control arrangement for a probe of an electromagnetic ultrasonic transverse wave transducer in accordance with an embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present invention will be described below with reference to preferred implementation steps, and fig. 1 is a schematic diagram of a probe of an electromagnetic ultrasonic transverse wave transducer provided according to an embodiment of the present application, as shown in fig. 1, the probe includes:
a plurality of permanent magnets; a plurality of array element coils; the permanent magnets are arranged on the upper layer of the array element coils, the distance between the two ends of each array element coil in the array element coils and the surface of the wheel to be detected is equal, the length of each array element coil in the array element coils is different, and the array element coils form ultrasonic transverse waves which are transmitted downwards in the wheel to be detected in a bias magnetic field generated by the permanent magnets according to alternating current.
In this application, use the permanent magnet to provide bias magnetic field, can effectively reduce the interference to the phased array to magnetic field intensity is also more stable simultaneously, need not long pulse current source simultaneously, has reduced check out test set's volume and work load. By electrifying the array element coil in the bias magnetic field by using alternating current, ultrasonic waves can be excited, and the detection of the defects in the metal of the wheel to be detected is realized. In this embodiment, no longer place all array element coils in coplanar, but rather press close to the wheel of waiting to detect with the position of placing of coil more, guarantee that array element coil does not contact the condition of waiting to detect the wheel promptly, make array element coil cover as far as possible on the surface of waiting to detect the wheel to the effect that the ultrasonic transverse wave that makes produces focuses on metal defect.
Optionally, the probe of the electromagnetic ultrasonic transverse wave transducer further includes: each permanent magnet in the plurality of permanent magnets is arranged in the upper layer space of the array element coils according to the radian of the wheel to be detected.
In the present embodiment, a plurality of permanent magnets are disposed above the coil to provide the ultrasonic transverse wave propagating downwards, as shown in fig. 2 (B is the bias magnetic field, J is the current direction, and F is the particle motion direction, i.e. the sound wave propagation direction), the longitudinal wave propagation direction is the same as the vibration direction, and the transverse wave propagation direction is perpendicular to the vibration direction, as shown in fig. 3, under the same power supply, the transverse wave propagation speed is usually about half of the longitudinal wave, and the transverse wave wavelength is about half of the longitudinal wave, so the transverse wave attenuation degree is smaller than the longitudinal wave attenuation degree, i.e. the transverse wave detection sensitivity is higher under the same condition, and the detection effect obtained by exciting the ultrasonic transverse wave with the electromagnetic ultrasonic transducer is more accurate.
Simultaneously through being placed in the top of a plurality of array element coils with a plurality of permanent magnets arc to provide the ultrasonic transverse wave of downward propagation, realized using the ultrasonic transverse wave that the attenuation degree is less to detect the inside metal defect of wheel, as the focus of many ultrasonic transverse waves in a point that fig. 4 shows, signal strength reinforcing has reached the effect that detects the inside metal defect of wheel more accurately.
Optionally, the probe of the electromagnetic ultrasonic transverse wave transducer further includes: the length-to-height ratio of each permanent magnet in the plurality of permanent magnets is 1:2.
fig. 5, 6, 7 and 8 show the aspect ratio of 1:1. 1:1.5, 1:2 and 1:2.5 static magnetic field strength and distribution of four permanent magnets, table 1 is a length to height ratio of 1:1. 1:1.5, 1:2 and 1: the magnetic field intensity distributions of the four permanent magnets of 2.5 are as follows.
Table 1 length to height ratio 1:1 to 1:2.5 magnetic field intensity distribution of four permanent magnets
As can be seen from fig. 5, 6, 7, 8 and table 1, when the aspect ratio of the permanent magnet is 1:2, the magnetic flux density on the surface of the object to be detected is larger and the distribution is more uniform.
The formula for calculating the transduction efficiency of the electromagnetic ultrasonic transducer is as follows,
wherein P represents the acoustic power generated per unit area in the workpiece, Q represents the electromagnetic power per unit area, pi represents the circumferential ratio, B 0 Representing the static magnetic field strength, p representing the density of the object, c representing the speed of the acoustic wave propagating in the object, ω representing the angular frequency of the alternating magnetic field, δ representing the depth of eddy currents induced in the workpiece, wherein the formula for β is as follows,
where π represents the circumferential ratio, λ represents the magnetic permeability in vacuum, μ represents the magnetic permeability, μ 0 Denotes the magnetic permeability in vacuum, σ denotes the electrical conductivity, and ω denotes the angular frequency of the alternating magnetic field. The transduction efficiency and the static magnetic field strength B of the electromagnetic ultrasonic transducer can be obtained by the formula 0 2 Is in direct proportion. From the above analysis, by setting the aspect ratio of the permanent magnet to 1:2, the magnetic flux density value of the surface of the object to be detected is larger, and the static magnetic field intensity provided by the permanent magnet is stronger, so that the energy conversion efficiency of the electromagnetic ultrasonic transducer is improved, and the effect of obtaining a more accurate detection result is achieved.
Optionally, the probe of the electromagnetic ultrasonic transverse wave transducer further includes: the magnetic poles of every two adjacent permanent magnets in the plurality of permanent magnets are opposite.
TABLE 2 magnetic field intensity under three permanent magnet arrangements
Fig. 9 is a schematic diagram of three different permanent magnet arrangement modes of a single magnet, a homopolar magnet in parallel and a reverse-polar magnet in parallel, and table 2 shows magnetic field intensity of the three permanent magnet arrangements. As can be seen from fig. 9 and table 2, when the total volume is the same, the peak value of the magnetic field intensity generated on the surface of the specimen by the magnet group in which the magnets of opposite polarity are arranged is about 60% higher than the peak value of the magnetic field intensity generated on the surface of the specimen by the magnet group in which the magnets of single magnet and the magnets of the same polarity are arranged. The permanent magnets are arranged in a mode that magnetic poles of adjacent magnets are opposite, so that the magnetic field intensity provided by the permanent magnets is larger, and the effect of improving the detection accuracy is achieved.
Optionally, the probe of the electromagnetic ultrasonic transverse wave transducer further includes: each array element coil in the plurality of array element coils is an array element coil integrating a receiving current signal and a sending current signal.
In this embodiment, through using the array element coil that receives the current signal and send the current signal as an organic whole, retrench subassembly quantity and operation, occupy space still less, reduced simultaneously two sets of coils because the signal interference that electromagnetic induction brought, and then reached the effect that has promoted the detection precision.
According to an embodiment of the present invention, there is provided an alternative method embodiment of a control method for a probe of an electromagnetic ultrasonic transverse wave transducer, where the control method is applied to control the probe of the electromagnetic ultrasonic transverse wave transducer.
Fig. 10 is a first schematic diagram of a control method of an alternative probe of an electromagnetic ultrasonic transverse wave transducer according to an embodiment of the invention, as shown in fig. 10, the method includes the following steps:
in step S1001, a bias magnetic field is generated by using a plurality of permanent magnets.
A plurality of permanent magnets are placed through the scheme, and the bias magnetic field generated by the exciting coil in the prior art is replaced, so that the bias magnetic field with larger magnetic field intensity is generated, and the detection accuracy is improved.
Step S1002, a time sequence of transmitting high-frequency pulse current signals to the array element coils is controlled by using a time delay phased array, and ultrasonic transverse waves which are downward transmitted in the wheel to be detected are formed.
In the embodiment of the application, the time delay phased array is used for controlling the electrifying time sequence of the alternating current, the alternating current is provided for the array element coils placed in the bias magnetic field, the generated ultrasonic transverse waves which are propagated downwards can be controlled to be focused on a certain point of the wheel to be detected, and a better detection result is obtained.
And S1003, receiving a target signal through a plurality of array element coils, wherein the target signal is returned after ultrasonic transverse waves contact metal defects in the wheel to be detected.
In the embodiment of the application, when the ultrasonic transverse wave which is propagated downwards contacts the metal defect in the wheel to be detected, a target signal is returned for subsequent identification of the defect in the wheel to be detected.
And step S1004, processing the target signal to identify metal defects inside the wheel to be detected.
The target signals returned by the scheme are converted into induced currents in the array element coils, and then the induced currents are transmitted to computer software for subsequent processing and analysis so as to identify the metal defects in the wheel to be detected.
According to the steps, the alternating current is provided for the array element coil in the bias magnetic field by setting the placing position of the array element coil and controlling the power-on time sequence of the alternating current by using the time delay phased array, so that the array element coil generates the ultrasonic transverse wave which is downwards transmitted in the metal of the wheel to be detected, the generated ultrasonic transverse wave can be focused to a certain position of the wheel to be detected, and the purpose of enabling the detection result of the defect in the metal of the wheel to be more accurate is achieved.
Optionally, the time sequence of transmitting the high-frequency pulse current signal to the plurality of array element coils is controlled by using a time delay phased array, and the forming of the ultrasonic transverse wave which downwards propagates inside the wheel to be detected comprises: according to the length sequence from short to long of each array element coil in the array element coils, high-frequency pulse current signals are transmitted to the array element coils, so that all the array element coils in the array element coils generate ultrasonic transverse waves at the same time.
In this embodiment, a plurality of array element coils are arranged in a track shape, and a plurality of array element coils are not in the same horizontal plane, if the time sequence of the current of each coil is not controlled, all coils emit downward ultrasonic transverse waves at the same time, and the time when the ultrasonic waves reach a certain point in the wheel to be detected is different, so that the echo signal can have a peak value for many times, but the value of the peak value point is low, so that the obtained detection result is inaccurate.
In this embodiment, as shown in fig. 11, by setting different coil delay-on currents, the effect of focusing signals can be achieved, and the maximum displacement of the detection point before focusing is 12 × 10 as can be obtained from the data corresponding to the second peak in fig. 11 - 9 mm, maximum displacement of the detection point after focusing is 20 × 10 -9 mm, the peak value of the echo signal is increased, and the signal intensity is improved by 66%. The time sequence of transmitting the high-frequency pulse current signals to the array element coils by using the time delay phased array to control the alternating current power supply can focus the received signals, improve the peak value of the detection signals and be beneficial to obtaining more accurate detection results.
Through using time delay phased array control alternating current power supply to transmit the chronogenesis of high-frequency pulse current signal for a plurality of array element coils, need not remove check out test set simultaneously, can set up ultrasonic wave focus point in waiting to detect the inside different positions of wheel, change the testing result behind the focus position, as shown in figure 12, the ultrasonic transverse wave that a plurality of array element coils produced can focus on in waiting to detect the inside one point of wheel, with the peak value of reinforcing echo signal, through the above-mentioned scheme, the work load has not only been reduced, the effect of promotion detection efficiency has been reached simultaneously.
Optionally, before receiving the target signal through the plurality of array element coils, the method further includes: reflecting the ultrasonic transverse wave to the surface of the wheel to be detected after the ultrasonic transverse wave contacts the defect in the metal of the wheel to be detected; when the surface of the wheel to be detected receives the ultrasonic transverse wave, particle vibration is generated, and a plurality of array element coils in a bias magnetic field are caused to generate target current through the particle vibration generated on the surface of the wheel to be detected; and generating a target signal according to the target current.
In this embodiment, after the ultrasonic transverse waves generated by the array element coils contact the defects inside the wheel metal to be detected, the ultrasonic transverse waves are reflected to the surface of the wheel to be detected, and particle vibration on the surface of the wheel to be detected is caused, and because the surface of the wheel to be detected is in the bias magnetic field, the particle vibration can cause the plurality of array element coils to generate induced currents, and then data of the induced currents is transmitted to computer software for processing and analysis, so that the result of identifying the defects inside the wheel metal to be detected can be obtained. By using ultrasonic transverse waves to detect the defects inside the metal of the wheel to be detected, the attenuation of the acoustic waves is reduced, the peak value of an echo signal is increased, and the effect of enabling the detection result to be more accurate is achieved.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
The embodiment of the present application further provides a control device for a probe of an electromagnetic ultrasonic transverse transducer, and it should be noted that the control device for a probe of an electromagnetic ultrasonic transverse transducer according to the embodiment of the present application may be used to execute the control method for a probe of an electromagnetic ultrasonic transverse transducer according to the embodiment of the present application. The following describes a batch data conversion apparatus provided in an embodiment of the present application.
FIG. 13 is a schematic diagram of a batch data conversion apparatus according to an embodiment of the present application. As shown in fig. 13, the apparatus includes: a first generating unit 1301, a forming unit 1302, a receiving unit 1303, and a processing unit 1304.
A first generating unit 1301 for generating a bias magnetic field using a plurality of permanent magnets.
And a forming unit 1302, configured to control a timing sequence of transmitting the high-frequency pulse current signal to the plurality of array element coils by using the time delay phased array, so as to form an ultrasonic transverse wave which propagates downwards inside the wheel to be detected.
And the receiving unit 1303 is used for receiving a target signal through the plurality of array element coils, wherein the target signal is a signal returned after the ultrasonic transverse wave contacts the metal defect inside the wheel to be detected.
And the processing unit 1304 is used for processing the target signal so as to identify the metal defects in the wheel to be detected.
In the control device for the probe of the electromagnetic ultrasonic transverse wave transducer provided by the embodiment of the application, a bias magnetic field can be generated by the first generating unit 1301 by using a plurality of permanent magnets; the forming unit 1302 controls the time sequence of transmitting high-frequency pulse current signals to the array element coils by using a time delay phased array, and forms ultrasonic transverse waves which are transmitted downwards in the wheel to be detected; receiving a target signal through a plurality of array element coils by a receiving unit 1303, wherein the target signal is a signal returned after ultrasonic transverse waves contact with a metal defect inside a wheel to be detected; through the processing unit 1304, the target signal is processed to identify the metal defects inside the wheel to be detected, so that the problem that the electromagnetic ultrasonic transverse-wave transducer in the related art cannot effectively identify the metal defects inside the wheel is solved. Through the position of placing that sets up array element coil, after providing the alternating current for the array element coil that is in bias magnetic field, make array element coil produce waiting to detect the inside ultrasonic transverse wave of propagating downwards of wheel metal, realized that the ultrasonic transverse wave that makes the production can focus on metal defect position, and then reached the purpose that makes the testing result of the inside defect of wheel metal more accurate.
Optionally, in the control apparatus for a probe of an electromagnetic ultrasonic transverse transducer provided in an embodiment of the present application, the forming unit 1302 includes: and the transmission subunit is used for transmitting high-frequency pulse current signals to the plurality of array element coils according to the length sequence from short to long of each array element coil in the plurality of array element coils so as to enable all the array element coils in the plurality of array element coils to generate ultrasonic transverse waves at the same moment.
Optionally, in the control device for a probe of an electromagnetic ultrasonic transverse wave transducer provided in an embodiment of the present application, the device further includes: the reflection unit is used for reflecting the ultrasonic transverse waves to the surface of the wheel to be detected before the target signals are received by the array element coils and after the ultrasonic transverse waves contact the defects in the metal of the wheel to be detected; the second generating unit is used for generating particle vibration when the surface of the wheel to be detected receives the ultrasonic transverse wave, and the particle vibration generated by the surface of the wheel to be detected causes a plurality of array element coils in the bias magnetic field to generate target current; and the third generating unit is used for generating a target signal according to the target current.
The control device of the probe of the electromagnetic ultrasonic transverse wave transducer comprises a processor and a memory, wherein the first generating unit 1301, the forming unit 1302, the receiving unit 1303, the processing unit 1304 and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The inner core can be set to be one or more than one, and the probe of the electromagnetic ultrasonic transverse transducer and the control method and device thereof are provided by adjusting the parameters of the inner core, so that the problem that the electromagnetic ultrasonic transverse transducer in the related technology cannot effectively identify the defects in the metal of the wheel is solved.
The memory may include volatile memory in a computer readable medium, random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
An embodiment of the present invention provides a computer-readable storage medium having a program stored thereon, which when executed by a processor, implements a method of controlling a probe of the electromagnetic ultrasonic transverse transducer.
The embodiment of the invention provides a processor, which is used for running a program, wherein the program is used for executing a control method of a probe of an electromagnetic ultrasonic transverse wave transducer during running.
The embodiment of the invention provides electronic equipment, which comprises a processor, a memory and a program which is stored on the memory and can run on the processor, wherein the processor executes the program and realizes the following steps: generating a bias magnetic field by adopting a plurality of permanent magnets; controlling the time sequence of transmitting high-frequency pulse current signals to the array element coils by using a time delay phased array to form ultrasonic transverse waves which are transmitted downwards in the wheel to be detected; receiving a target signal through a plurality of array element coils, wherein the target signal is a signal returned after ultrasonic transverse waves contact metal defects in the wheel to be detected; and processing the target signal to identify metal defects inside the wheel to be detected.
The processor executes the program and further realizes the following steps: the time sequence of transmitting high-frequency pulse current signals to a plurality of array element coils is controlled by using a time delay phased array, and the ultrasonic transverse wave which is formed and downwards transmitted in the wheel to be detected comprises the following steps: according to the length sequence from short to long of each array element coil in the array element coils, high-frequency pulse current signals are transmitted to the array element coils, so that all the array element coils in the array element coils generate ultrasonic transverse waves at the same time.
The processor executes the program and further realizes the following steps: before receiving the target signal through the plurality of array element coils, the method further includes: reflecting the ultrasonic transverse wave to the surface of the wheel to be detected after the ultrasonic transverse wave contacts the defect in the metal of the wheel to be detected; when the surface of the wheel to be detected receives the ultrasonic transverse wave, particle vibration is generated, and a plurality of array element coils in a bias magnetic field are caused to generate target current through the particle vibration generated on the surface of the wheel to be detected; and generating a target signal according to the target current.
The present application also provides a computer program product adapted to perform a program for initializing the following method steps when executed on a data processing device: generating a bias magnetic field by adopting a plurality of permanent magnets; controlling the time sequence of transmitting high-frequency pulse current signals to the array element coils by using a time delay phased array to form ultrasonic transverse waves which are transmitted downwards in the wheel to be detected; receiving a target signal through a plurality of array element coils, wherein the target signal is a signal returned after ultrasonic transverse waves contact metal defects in the wheel to be detected; and processing the target signal to identify metal defects inside the wheel to be detected.
When executed on a data processing device, is further adapted to perform a procedure for initializing the following method steps: the time sequence of transmitting high-frequency pulse current signals to the array element coils is controlled by using the time delay phased array, and ultrasonic transverse waves which are transmitted downwards in the wheel to be detected are formed and comprise: according to the length sequence from short to long of each array element coil in the array element coils, high-frequency pulse current signals are transmitted to the array element coils, so that all the array element coils in the array element coils generate ultrasonic transverse waves at the same time.
When executed on a data processing device, is further adapted to perform a procedure for initializing the following method steps: before receiving the target signal through the plurality of array element coils, the method further includes: reflecting the ultrasonic transverse wave to the surface of the wheel to be detected after the ultrasonic transverse wave contacts the defect in the metal of the wheel to be detected; when the surface of the wheel to be detected receives the ultrasonic transverse waves, particle vibration is generated, and a plurality of array element coils in a bias magnetic field are caused to generate target current through the particle vibration generated on the surface of the wheel to be detected; and generating a target signal according to the target current.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A probe for an electromagnetic ultrasonic transverse transducer, comprising:
a plurality of permanent magnets;
a plurality of array element coils;
the permanent magnets are arranged on the upper layers of the array element coils, the distances between two ends of each array element coil in the array element coils and the surface of the wheel to be detected are the same, the lengths of each array element coil in the array element coils are different, and the array element coils form ultrasonic transverse waves which are downward transmitted inside the wheel to be detected in bias magnetic fields generated by the permanent magnets according to alternating currents.
2. The probe of claim 1, wherein each of the plurality of permanent magnets is arranged in an upper space of the plurality of array element coils according to an arc of the wheel to be detected.
3. The probe of claim 1, wherein each of the plurality of permanent magnets has a length to height ratio of 1:2.
4. the probe of claim 1, wherein the magnetic poles of two adjacent permanent magnets of the plurality of permanent magnets are opposite.
5. The probe of claim 1, wherein each of the plurality of array element coils is an array element coil with a combination of a receive current signal and a transmit current signal.
6. An electromagnetic ultrasonic transverse transducer, characterized in that it is provided with a probe according to any of the preceding claims 1 to 5.
7. A method for controlling a probe of an electromagnetic ultrasonic transverse wave transducer, which is applied to the electromagnetic ultrasonic transverse wave transducer of claim 6, comprising:
generating a bias magnetic field by adopting a plurality of permanent magnets;
controlling the time sequence of transmitting high-frequency pulse current signals to the array element coils by using a time delay phased array to form ultrasonic transverse waves which are transmitted downwards in the wheel to be detected;
receiving a target signal through the plurality of array element coils, wherein the target signal is a signal returned after the ultrasonic transverse wave contacts the metal defect in the wheel to be detected;
and processing the target signal to identify the metal defects in the wheel to be detected.
8. The control method of claim 7, wherein the timing of the transmission of the high-frequency pulse current signals to the plurality of array element coils is controlled using a time-delay phased array, and the forming of the ultrasonic transverse waves propagating downward inside the wheel to be detected comprises:
and transmitting high-frequency pulse current signals to the array element coils according to the length sequence of each array element coil from short to long in the array element coils so as to enable all the array element coils in the array element coils to generate the ultrasonic transverse waves at the same time.
9. The control method of claim 7, wherein before receiving a target signal via the plurality of array element coils, the method further comprises:
after the ultrasonic transverse waves contact the defects in the metal of the wheel to be detected, reflecting the ultrasonic transverse waves to the surface of the wheel to be detected;
when the surface of the wheel to be detected receives the ultrasonic transverse waves, particle vibration is generated, and the particle vibration generated on the surface of the wheel to be detected causes the plurality of array element coils in the bias magnetic field to generate target current;
and generating the target signal according to the target current.
10. A control device for a probe of an electromagnetic ultrasonic transverse transducer, which is applied to the electromagnetic ultrasonic transverse transducer according to claim 6, comprising:
a first generating unit for generating a bias magnetic field using a plurality of permanent magnets;
the forming unit is used for controlling the time sequence of transmitting the high-frequency pulse current signals to the array element coils by using the time delay phased array to form ultrasonic transverse waves which are transmitted downwards in the wheel to be detected;
the receiving unit is used for receiving a target signal through the plurality of array element coils, wherein the target signal is a signal returned after the ultrasonic transverse wave contacts the metal defect in the wheel to be detected;
and the processing unit is used for processing the target signal so as to identify the metal defects in the wheel to be detected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211522085.0A CN115856095A (en) | 2022-11-30 | 2022-11-30 | Probe of electromagnetic ultrasonic transverse wave transducer and control method and device thereof |
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| CN202211522085.0A CN115856095A (en) | 2022-11-30 | 2022-11-30 | Probe of electromagnetic ultrasonic transverse wave transducer and control method and device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116539731A (en) * | 2023-07-06 | 2023-08-04 | 中国特种设备检测研究院 | Primary and secondary co-located transceiver transducer, imaging system and imaging method |
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2022
- 2022-11-30 CN CN202211522085.0A patent/CN115856095A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116539731A (en) * | 2023-07-06 | 2023-08-04 | 中国特种设备检测研究院 | Primary and secondary co-located transceiver transducer, imaging system and imaging method |
| CN116539731B (en) * | 2023-07-06 | 2023-09-29 | 中国特种设备检测研究院 | Primary and secondary co-located transceiver transducer, imaging system and imaging method |
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