CN108645915A - A kind of ultrasound sense sound-screen, ultrasonic testing system and method - Google Patents
A kind of ultrasound sense sound-screen, ultrasonic testing system and method Download PDFInfo
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- CN108645915A CN108645915A CN201810427851.2A CN201810427851A CN108645915A CN 108645915 A CN108645915 A CN 108645915A CN 201810427851 A CN201810427851 A CN 201810427851A CN 108645915 A CN108645915 A CN 108645915A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/11—Analysing solids by measuring attenuation of acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
Abstract
The invention discloses a kind of ultrasound sense sound-screens, including：Two-dimensional array, transfer control gate, memory surface battle array, reads shift register and backstage image processing unit at peak detection circuit.Ultrasound sense sound-screen in the present invention is additionally arranged peak detection circuit in the output end of array element, the peak value of ultrasonic signal to receiving extracts, the output signal of peak detection circuit can just change when the peak value appearance of a new bigger or circuit reset, improve the data acquisition process rate of ultrasound sense sound-screen, so that big within sweep of the eye can once quickly presenting of the acoustic imaging of detection object in ultrasound sense sound-screen, simultaneously, without adding the associated images tool such as digital camera, it is convenient intuitive, solve that data acquisition process rate when currently carrying out big field range ultrasonic imaging is low or not convenient enough intuitive technical problem.
Description
Technical field
The present invention relates to a kind of ultrasound detection field more particularly to ultrasound sense sound-screen, ultrasonic testing system and methods.
Background technology
Acoustic imaging technology due to its Noninvasive, it is radiationless, real-time, at low cost and easy to remove the advantages that in industrial non-destructive
It plays an important role in detection and Medical Imaging.
But the areas imaging of current conventional Ultrasound scanning imagery is restricted, single sweep operation region is limited, to larger work
When part is detected, Multiple-Scan is needed to be spliced to provide a complete scan image, it is poor in timeliness, not intuitive enough,
If big field range is detected, more array elements is needed to realize, the increase of array element undoubtedly increases data collection capacity,
Data acquisition process rate is low.
It is super using acousto-optic screen (AO Sensor) detection transmission that the physical acoustics company (PCA) in the U.S. is proposed ultrasonic camera
Beam of sound converts the dampening information of ultrasonic beam to the brightness change of acousto-optic screen, is then carried out to acousto-optic screen with digital camera
Electron scanning, and then it is converted into visual pattern.
Although AO solves the problems, such as conventional sweep to a certain extent, imaging exists, auxiliary with digital camera due to needing
Furtherance picture is not convenient intuitive enough, therefore does not obtain wide popularization and application.
Therefore, it is low or not convenient straight enough to result in data acquisition process rate when currently carrying out big field range ultrasonic imaging
The technical issues of sight.
Invention content
The present invention provides a kind of ultrasound sense sound-screen, ultrasonic testing system and methods, solve and currently carry out big visual field model
Data acquisition process rate is low when enclosing ultrasonic imaging or not convenient enough intuitive technical problem.
The present invention provides a kind of ultrasound sense sound-screens, including：Two-dimensional array, peak detection circuit, transfer control gate, storage
Device face battle array reads shift register and backstage image processing unit；
The output end of each array element is electric with the input terminal of the corresponding peak detection circuit respectively in the two-dimensional array
Connection；
The output end of each peak detection circuit is electrically connected with the input terminal of the transfer control gate；
The output end of the transfer control gate is electrically connected with the input terminal of the memory surface battle array；
The input terminal for reading shift register is electrically connected with the output end of the memory surface battle array；
The output end for reading shift register is electrically connected with the backstage image processing unit.
Preferably, the connection type of the output end of each peak detection circuit and the input terminal of the transfer control gate
Connection type is addressed for ranks；
The output end of each row peak detection circuit combines output bus in column, often peak detection circuit described in a line
Output end combination embark on journey output bus, each row output bus and each row output bus and the transfer control gate
Input terminal is electrically connected.
Preferably, the output end of each array element and the connection type of the input terminal of each peak detection circuit are
Fully sampled array connection type.
Preferably, the output end of each array element and the connection type of the input terminal of each peak detection circuit are
Thinned array connection type.
Preferably, the two-dimensional array is PMUT two-dimensional arrays or CMUT two-dimensional arrays.
Preferably, the peak detection circuit is the capacitive peak detection circuit of discrete diode.
The present invention provides a kind of ultrasonic testing systems, including：Source emission device, detected object and above-mentioned any one
Kind ultrasound sense sound-screen；
The detected object is set between the source emission device and the ultrasound sense sound-screen.
Preferably, the source emission device is made of small source array element, one dimensional linear array, two-dimensional array or annular surface battle array.
The present invention provides a kind of supersonic detection methods, are used for any one of the above ultrasonic testing system, including：
S1：The ultrasonic signal of the two-dimensional array acquisition source emission device transmitting of ultrasound sense sound-screen, the two-dimensional array
Ultrasonic signal is converted to electric signal and is sent to the input terminal of each peak detection circuit；
S2：Transfer control gate is open-minded, is exported the output signal of each peak detection circuit by shifting control gate
It is stored to memory surface battle array；
S3：Read shift register by the output signal stored in the memory surface battle array by turn Serial output to rear
Platform image processing unit is handled to obtain the two-dimensional ultrasonic image of detected object.
Preferably, further include：
S4：The transfer control gate shutdown, the detected object rotate presetting angle, repeat step S1 to step
S4 is until obtain the two-dimensional ultrasonic image of preset quantity；
S5：The backstage image processing unit is handled to obtain the quilt to the two-dimensional ultrasonic image of preset quantity
Detect the three-dimensional ultrasound pattern of object.
As can be seen from the above technical solutions, the present invention has the following advantages：
The present invention provides a kind of ultrasound sense sound-screens, including：Two-dimensional array, peak detection circuit, transfer control gate, storage
Device face battle array reads shift register and backstage image processing unit；In the two-dimensional array output end of each array element respectively with
The input terminal of the corresponding peak detection circuit is electrically connected；The output end of each peak detection circuit is controlled with the transfer
The input terminal of grid processed is electrically connected；The output end of the transfer control gate is electrically connected with the input terminal of the memory surface battle array；It is described
The input terminal for reading shift register is electrically connected with the output end of the memory surface battle array；The output for reading shift register
End is electrically connected with the backstage image processing unit.
Ultrasound sense sound-screen in the present invention is additionally arranged peak detection circuit in the output end of array element, to the ultrasonic wave received
The peak value of signal extracts, the output letter of peak detection circuit when the peak value appearance of a new bigger or circuit reset
It number can just change, improve the data acquisition rate of ultrasound sense sound-screen so that detect the acoustic imaging of object in ultrasound sense sound-screen
It once can quickly present within sweep of the eye greatly, meanwhile, convenient intuitive without adding the associated images tool such as digital camera, solution
Determined current progress big field range ultrasonic imaging when data acquisition process rate is low or not convenient enough intuitive technical problem.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of overall structure diagram of one embodiment of ultrasound sense sound-screen provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the part-structure of ultrasound sense sound-screen provided in an embodiment of the present invention；
Fig. 3 is a kind of data flow schematic diagram of ultrasound sense sound-screen provided in an embodiment of the present invention；
Fig. 4 is a kind of circuit diagram of the capacitive peak detection circuit of discrete diode provided in an embodiment of the present invention；
Fig. 5 is the input signal and output signal schematic diagram of peak detection circuit provided in an embodiment of the present invention；
Fig. 6 is a kind of schematic diagram of one embodiment of ultrasonic testing system provided in an embodiment of the present invention；
Fig. 7 is a kind of flow diagram of one embodiment of ultrasonic testing system provided in an embodiment of the present invention；
Wherein, reference numeral is as follows：
1, array element；2, peak detection circuit；3, control gate is shifted；4, memory surface battle array；5, shift register is read；6, after
Platform image processing unit；7, two-dimensional array；8, source emission device；9, detected object；10, ultrasound sense sound-screen；11, acoustical coupling
Medium.
Specific implementation mode
An embodiment of the present invention provides a kind of ultrasound sense sound-screen, ultrasonic testing system and methods, solve current carry out greatly
Data acquisition process rate is low when field range ultrasonic imaging or not convenient enough intuitive technical problem.
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
All other embodiment that those of ordinary skill is obtained without making creative work, belongs to protection of the present invention
Range.
It please refers to Fig.1 to Fig. 5, an embodiment of the present invention provides a kind of one embodiment of ultrasound sense sound-screen, including：Two dimension
Face battle array 7, transfer control gate 3, memory surface battle array 4, reads shift register 5 and backstage image processing unit at peak detection circuit 2
6；
The output end of each array element 1 is electrically connected with the input terminal of corresponding peak detection circuit 2 respectively in two-dimensional array 7；
The output end of each peak detection circuit 2 is electrically connected with the input terminal of transfer control gate 3；
The output end of transfer control gate 3 is electrically connected with the input terminal of memory surface battle array 4；
The input terminal for reading shift register 5 is electrically connected with the output end of memory surface battle array 4；
The output end for reading shift register 5 is electrically connected with backstage image processing unit 6.
It should be noted that the overall structure of ultrasound sense sound-screen is as shown in Figure 1, include：Two-dimensional array 7, peak detection electricity
Road 2, memory surface battle array 4, reads shift register 5 and backstage image processing unit 6 at transfer control gate 3；
Each array element 1 in two-dimensional array 7 is ultrasonic transducer, can be divided into according to the arrangement mode of ultrasonic transducer one-dimensional
The design of linear array, two-dimensional array 7 and annular surface battle array etc., two-dimensional array 7 can be designed suitable and be had excellent performance by finite element theory
Array element model, to meet the index request of the detection structures of different detected objects with detection range to ultrasonic device, design
Later can be by high-precision processing technology or the array element 1 of 3D printing technique manufacture separation come combination manufacture two-dimensional array 7, and ultrasound
The size for feeling sound-screen is more than the size of detected object；
Peak detection circuit 2 is a kind of circuit that can acquire input signal maximum, as shown in figure 5, Vi examines for peak value
The input signal of slowdown monitoring circuit, Vo are the output signal of peak detection circuit, and the output signal Vo of peak detection circuit can be protected always
It holds at the maximum of input signal Vi, until next peak value acquisition can just be carried out by new maximum or circuit reset occur
Cycle；
Memory surface battle array 4 is that multiple storage shift registers are composed, each storage shift register and two-dimensional array 7
In each array element 1 be one-to-one relationship；
Shift register 5 is read to connect with the output end of a line of 4 least significant end of memory surface battle array, it can be by memory surface battle array
Serial output is to backstage image processing unit 6 by turn for the information stored in 4, and the flow direction of data is as shown in figure 3, in each array element 1
Data export into memory surface battle array 4 in corresponding storage shift register, such as the first row first row array element of two-dimensional array 7
1 data D4 is exported into the storage shift register of the first row first row of memory surface battle array 4, and then memory surface battle array 4 is logical
Cross read shift register 5 by the data stored in memory surface battle array 4 export line by line downwards into backstage image processing unit 6 into
Row processing；
Conventional backstage image processing unit 6 is GPU, also known as shows core, vision processor or display chip, is a kind of special
Door is in PC, work station, game machine and some mobile device (such as tablet computer, smart mobile phone) epigraph operations
Microprocessor, undertake output show figure task；
Peak detection circuit 2 is set between the output end and the input terminal for shifting control gate 3 of array element 1, then can be made
What peak detection circuit 2 exported is always the peak value of input signal, unless there is new peak value, otherwise output signal does not change, and increases
Fast data acquisition process rate.
Further, the connection type of the output end of each peak detection circuit 2 and the input terminal of transfer control gate 3 is row
Row addressing connection type；
The output end of each row peak detection circuit 2 combines output bus in column, per the output of a line peak detection circuit 2
It combines embark on journey output bus, each row output bus and each row output bus and is electrically connected with the input terminal for shifting control gate 3 in end.
It should be noted that if carrying out big field range imaging using ultrasound sense sound-screen, more array elements 1 are needed
It realizes, then the quantity of corresponding signal transmission passage and the difficulty of preparation certainly will rise therewith；
It therefore, as shown in Fig. 2, can be by the output end of each peak detection circuit 2 and the input terminal of transfer control gate 3
Connection type be set as ranks addressing connection type, ranks addressing connection type compared with fully sampled array connection type,
The quantity of signal transmission passage is become from m*n for m+n in the array of m*n, dramatically less signal transmission passage
Quantity reduces the difficulty of the complexity and hardware preparation of signal transmission passage connection.
Further, the connection type of the output end of each array element 1 and the input terminal of each peak detection circuit 2 is to adopt entirely
Sample array connection type.
It should be noted that as shown in Fig. 2, the output end of each array element 1 and the input terminal of each peak detection circuit 2
When connection type is fully sampled array (full sampling array, FSA) connection type, an array element 1 corresponds to a peak value
Detection circuit 2, different array elements 1 correspond to different peak detection circuits 2, and array element 1 is one-to-one close with peak detection circuit 2
System, each array element 1 have corresponding peak detection circuit 2, the output signal of all array elements 1 are all acquired, m*n's
By the quantity of signal transmission passage from m*n in array, here it is fully sampled array connection types.
Further, the connection type of the output end of each array element 1 and the input terminal of each peak detection circuit 2 is sparse
Array connection type.
It should be noted that compared with fully sampled array connection type, thinned array (sparse array, SA) connection side
The target of formula is under certain constraints, and solving makes array performance reach the minimum matrix number for it is expected to require, factor arrays
The form of expression of row connection type can be the two-dimensional array 7 provided with m*n, but the battle array only arranged according to thinned array
First 1 ability is connect with peak detection circuit 2, you can be booked array element 1 in two-dimensional array 7, but and not all array element 1 all with peak value
Detection circuit 2 connects, alternatively, being distributed setting array element 1 according to thinned array in two-dimensional array 7, each array element 1 is examined with peak value
Slowdown monitoring circuit 2 connects.
Further, two-dimensional array 7 is PMUT two-dimensional arrays 7 or CMUT two-dimensional arrays 7.
It should be noted that PMUT is piezoelectric transducer, CMUT is capacitance-type transducer, in actual application, two
Dimension face battle array 7 can select PMUT or CMUT as array element 1 as needed.
Further, peak detection circuit 2 is the capacitive peak detection circuit of discrete diode.
It should be noted that the circuit of the capacitive peak detection circuit of discrete diode as shown in figure 4, wherein resistance R1,
The setting of resistance R2, resistance R2, capacitance C1, capacitance C2, capacitance C3, diode D1, diode D2, amplifier T1 and amplifier T2
Mode is known technology, is not being repeated herein；
The capacitive peak detection circuit of discrete diode is a kind of citing application in peak detection circuit 2, is actually answered
With in the process, can select as needed the capacitive peak detection circuit of discrete diode, diode-less type peak detection circuit or
Integrated peak detection circuit etc. is used as peak detection circuit 2.
Traditional ultrasonic imaging often uses small range Multiple-Scan, so to reduce the difficulty of data acquisition and processing (DAP)
The image mosaic that Multiple-Scan is obtained afterwards is assisted at complete image even acousto-optic screen is also required to digital camera
Picture；
And the ultrasound sense sound-screen in the present embodiment is similar to acousto-optic screen, by transmitting and receives separation, has adapted to specific inspection
Environment is surveyed, greatly reduces the head end complex degree of system, but acousto-optic screen needs to solve the problems, such as that data acquisition rate is low
Digital camera is used to carry out associated image, and the ultrasound sense sound-screen in the present embodiment is additionally arranged peak value in the output end of array element 1
The peak value of detection circuit 2, the ultrasonic signal to receiving extracts, until the peak value appearance of a new bigger or circuit
The output signal of peak detection circuit 2 can just change when reset, improve the data acquisition rate of ultrasound sense sound-screen so that detection
The acoustic imaging of object once can be quickly presented greatly within sweep of the eye ultrasound sense sound-screen, and auxiliary without adding digital camera etc.
Imaging tool is helped, it is convenient intuitive；
Meanwhile the output end of each peak detection circuit 2 and the connection type of transfer control gate 3 are connected using ranks addressing
The quantity of signal transmission passage has been reduced to a great extent in mode, reduces the connection difficulty of signal transmission passage and prepares hardly possible
Degree；
The connection type of two-dimensional array 7 and peak detection circuit 2 can select as needed fully sampled array connection type or
Sparse sampling connection type is selected as needed in practical application；
In conclusion the ultrasound sense sound-screen in the present embodiment solves data when currently carrying out big field range ultrasonic imaging
Acquisition process rate is low or not convenient enough intuitive technical problem.
It is a kind of one embodiment of ultrasound sense sound-screen provided in an embodiment of the present invention above, is below the embodiment of the present invention
A kind of one embodiment of the ultrasonic testing system provided.
Referring to Fig. 6, an embodiment of the present invention provides a kind of one embodiment of ultrasonic testing system, including：Sound source is sent out
Injection device 8, detected object 9 and any one of the above ultrasound sense sound-screen 10；
Detected object 9 is set between source emission device 8 and ultrasound sense sound-screen 10.
It should be noted that the ultrasonic wave that source emission device 8 generates can decay when passing through detected object 9, from
And the ultrasonic signal strength for causing ultrasound sense 10 each array element of sound-screen to receive is different, and each ultrasound is felt each of sound-screen 10
The ultrasonic signal that array element receives is converted to electric signal, and electric signal is handled and can be obtained by backstage image processor
The two-dimensional ultrasonic image of detected object；
It is air that ultrasonic wave transmission, which needs acoustic coupling medium 11, conventional acoustic coupling medium 11,.
Further, source emission device 8 is made of small source array element, one dimensional linear array, two-dimensional array or annular surface battle array.
It should be noted that small source array element can be used in source emission device 8, one dimensional linear array, two can be also selected as needed
Dimension face battle array or annular surface battle array.
Imaging based on ultrasound sense sound-screen is the imaging of a kind of " full filed ", and supersonic region detection technique is similar to radioactive ray
DR is imaged, but non-hazardous；
Transmission ultrasonic is imaged, ultrasonic irradiation is carried out to test sample using side sound source, ultrasonic beam propagates through
Test object has different degrees of decaying, feels sound-screen by ultrasound, the ultrasound " shadow " of projection is quickly converted into vision
Image, in this imaging method, what is showed is fast imaging of a full filed；
The ultrasound transmission detection to detected object 9 may be implemented in ultrasonic testing system in the present embodiment, passes through ultrasound
Feel detection of the two-dimensional ultrasonic image realization of sound-screen 10 to detected object outside or inside defect.
It is a kind of one embodiment of ultrasonic testing system provided in an embodiment of the present invention above, implements below for the present invention
A kind of one embodiment for supersonic detection method that example provides.
Referring to Fig. 7, an embodiment of the present invention provides a kind of one embodiment of supersonic detection method, including：
701：The ultrasonic signal of the two-dimensional array acquisition source emission device transmitting of ultrasound sense sound-screen, two-dimensional array will surpass
Acoustic signals are converted to electric signal and are sent to the input terminal of each peak detection circuit；
It should be noted that the array element of the two-dimensional array of ultrasound sense sound-screen is ultrasonic transducer, the ultrasound that can will be received
Signal is converted into electric signal, to detect the power of ultrasonic signal；
Electric signal after conversion is sent to the input terminal of each peak detection circuit by array element, is adopted by peak detection circuit
Collect the peak value in electric signal, since the output signal of peak detection circuit is only the peak value of the electric signal inputted, it is not necessary to acquire non-
The electrical signal data of peak value, therefore the rate of signal acquisition can be improved.
702：It is open-minded to shift control gate, is exported the output signal of each peak detection circuit to depositing by shifting control gate
Reservoir face battle array is stored；
It should be noted that transfer control gate is open-minded, it can be by shifting control gate by the defeated of each peak detection circuit
Go out signal and export to memory surface battle array to be stored, the signal storage of each array element output to corresponding storage shift register
In.
703：Read shift register by the output signal stored in memory surface battle array by turn Serial output to backstage image
Processing unit is handled to obtain the two-dimensional ultrasonic image of detected object；
It should be noted that when memory surface battle array is stored with data, by reading shift register by memory surface battle array
In data Serial output to backstage image processing unit is handled by turn, i.e., every time by memory surface battle array bottommost a line
Storage shift register output, the then storage of remaining row thinks that the data of register are transmitted downwards line by line；
The two-dimensional ultrasonic image that detected object can be obtained after the image processing unit processing of backstage, can be according to two-dimensional ultrasound
Image judge detected object whether there is defect.
704：Control gate shutdown is shifted, detected object rotates presetting angle, and it is straight to step 704 to repeat step 701
To obtaining the two-dimensional ultrasonic image of preset quantity；
It is commented it should be noted that can only be detected from one in face of detected object by a secondary two-dimensional ultrasonic image
Estimate, obtain the three-dimensional ultrasound pattern of detected object if necessary, then the two dimension for needing to obtain detected object all angles is super
Acoustic image carries out integration processing；
Therefore, transfer control gate can be turned off after the completion of step 703, detected object is rotated into presetting angle, then again
The secondary content for repeating step 701 to 704, until obtaining the two-dimensional ultrasonic image of preset quantity；
The angle rotation of detected object can be that detected object bottom setting electric rotating platform is rotated, and also may be used
To be to be rotated by mechanical arm or manual rotation, it might even be possible to be that detected object does not rotate, source emission device and
Ultrasound sense sound-screen rotation, practical application are selected as needed；
Presetting angle and preset quantity are configured as needed, can such as set presetting angle to 60 degree, preset number
Amount is set as 6；
The position of stationary sound source emitter and ultrasound sense sound-screen may be implemented by the rotation of detected object to quilt
Survey the three dimensions acquisition of object information.
705：Backstage image processing unit is handled to obtain detected object to the two-dimensional ultrasonic image of preset quantity
Three-dimensional ultrasound pattern.
It should be noted that after obtaining the two-dimensional ultrasonic image of preset quantity, backstage image processing unit is to preset
The two-dimensional ultrasonic image of quantity is handled to obtain the three-dimensional ultrasound pattern of detected object；
It in addition to this,, can be according to detected pair before starting ultrasound detection for different types of detected object
The type of elephant adjust the distance between source emission device and ultrasound sense sound-screen, source emission device ultrasound emission frequency and
The ultrasonic reception frequency of ultrasound sense sound-screen；
Different types of detected object can be detected by adjusting ultrasound emission frequency and ultrasonic reception frequency；
The imaging method of acousto-optic screen is detection transmission ultrasonic wave beam, converts the dampening information of ultrasonic beam to acousto-optic screen
Then brightness change carries out electron scanning to acousto-optic screen with digital camera, and then is converted into visual pattern；
And the supersonic detection method in the present embodiment is realized by the method that peak detection circuit keeps maximum to transmission
The acquisition of ultrasonic signal improves data acquisition process rate, to realize a region-wide a wide range of fast imaging, by super
The transmissison characteristic of sound wave detects, and feels the ultrasonic signal that sound-screen receives by ultrasound, according to ultrasonic transmitter and ultrasonic sense sound
Time delay or amplitude between screen decay to rebuild the velocity of sound (refraction coefficient) or the absorption characteristic parameter inside detected object,
Corresponding two-dimensional ultrasonic image is generated, to detect the defect of detected object, may further be transmitted by Multi-angle ultrasound
Detection, several two-dimensional ultrasonic images are integrated to obtain the three-dimensional ultrasound pattern of detected object, are seen more simple and clearly
The outside or inside defect of detected object is examined, additional auxiliary imaging devices are not necessarily to.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be the indirect coupling by some interfaces, device or unit
It closes or communicates to connect, can be electrical, machinery or other forms.The unit illustrated as separating component can be or
It may not be and be physically separated.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Stating embodiment, invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to preceding
The technical solution recorded in each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
Modification or replacement, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of ultrasound sense sound-screen, which is characterized in that including：Two-dimensional array, peak detection circuit, transfer control gate, memory
Face battle array reads shift register and backstage image processing unit；
The output end of each array element is electrically connected with the input terminal of the corresponding peak detection circuit respectively in the two-dimensional array；
The output end of each peak detection circuit is electrically connected with the input terminal of the transfer control gate；
The output end of the transfer control gate is electrically connected with the input terminal of the memory surface battle array；
The input terminal for reading shift register is electrically connected with the output end of the memory surface battle array；
The output end for reading shift register is electrically connected with the backstage image processing unit.
2. a kind of ultrasound sense sound-screen according to claim 1, which is characterized in that the output of each peak detection circuit
The connection type of end and the input terminal of the transfer control gate is that ranks address connection type；
The output end of each row peak detection circuit combines output bus in column, and often peak detection circuit described in a line is defeated
Outlet combines the input of output bus of embarking on journey, each row output bus and each row output bus and the transfer control gate
End electrical connection.
3. it is according to claim 1 it is a kind of ultrasound sense sound-screen, which is characterized in that the output end of each array element with it is each
The connection type of the input terminal of the peak detection circuit is fully sampled array connection type.
4. it is according to claim 1 it is a kind of ultrasound sense sound-screen, which is characterized in that the output end of each array element with it is each
The connection type of the input terminal of the peak detection circuit is thinned array connection type.
5. a kind of ultrasound sense sound-screen according to claim 1, which is characterized in that the two-dimensional array is PMUT two-dimensional arrays
Or CMUT two-dimensional arrays.
6. a kind of ultrasound sense sound-screen according to claim 1, which is characterized in that the peak detection circuit is discrete two pole
Manage capacitive peak detection circuit.
7. a kind of ultrasonic testing system, which is characterized in that including：Source emission device, detected object and claim 1 to 6
Any one of described in ultrasound sense sound-screen；
The detected object is set between the source emission device and the ultrasound sense sound-screen.
8. a kind of ultrasonic testing system according to claim 7, which is characterized in that the source emission device is by small source battle array
Member, one dimensional linear array, two-dimensional array or annular surface battle array composition.
9. a kind of supersonic detection method, for the ultrasonic testing system described in claim 7 or 8, which is characterized in that including：
S1：The ultrasonic signal of the two-dimensional array acquisition source emission device transmitting of ultrasound sense sound-screen, the two-dimensional array will surpass
Acoustic signals are converted to electric signal and are sent to the input terminal of each peak detection circuit；
S2：It is open-minded to shift control gate, is exported the output signal of each peak detection circuit to depositing by shifting control gate
Reservoir face battle array is stored；
S3：Reading shift register, Serial output to backstage is schemed by turn by the output signal stored in the memory surface battle array
As processing unit is handled to obtain the two-dimensional ultrasonic image of detected object.
10. a kind of supersonic detection method according to claim 9, which is characterized in that further include：
S4：The transfer control gate shutdown, the detected object rotate presetting angle, it is straight to step S4 to repeat step S1
To obtaining the two-dimensional ultrasonic image of preset quantity；
S5：The backstage image processing unit handles the two-dimensional ultrasonic image of preset quantity to obtain described be detected
The three-dimensional ultrasound pattern of object.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810427851.2A CN108645915A (en) | 2018-05-07 | 2018-05-07 | A kind of ultrasound sense sound-screen, ultrasonic testing system and method |
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