Summary of the invention
In existing ultrasonic phase array detection technique, the ultrasonic echo for transmiting or reflecting by testee is believed
Number, it is all that the ultrasound echo signal is received with specific sample frequency (such as 50MHz-100MHz), although the ultrasound phase
It controls battle array detection technique and interval sampling is implemented to the ultrasound echo signal, but the signal data volume that the sampling obtains is also very huge
It is big, and the signal data volume that the obtained image resolution ratio of ultrasonic imaging and the sampling obtain is closely related;In order to change
The imaging resolution of kind ultrasonic imaging, it usually needs down-sampled processing is carried out to the ultrasound echo signal data that sampling obtains, and
It is not just original ultrasound echo signal data by the down-sampled obtained ultrasound echo signal data that handle, i.e., this is original
Ultrasonic echo data occur data volume and data information change, it is this change usually all along with ultrasound echo signal number
According to partial information lose.Since the resolution ratio and clarity of ultrasonic imaging are decided by that ultrasonic echo used by ultrasonic imaging is believed
Number data volume and data content, above-mentioned ultrasound echo signal data partial information loss will necessarily reduce the ultrasonic imaging institute
The resolution ratio and clarity of image are obtained, to severely impact the accuracy of ultrasonic phase array detection.
In view of the defects existing in the prior art, the present invention provides a kind of ultrasonic phase array detection system based on initial data
And method, the ultrasonic phase array detection system and method are super to this after receiving the ultrasound echo signal from testee
Sound echo-signal generates a primary data information (pdi) after directly carrying out analog-to-digital conversion process and Beam synthesis processing, and original based on this
Data information directly carries out imaging and saves the primary data information (pdi) directly to be used for subsequent analysis calculating
Source data.As it can be seen that the ultrasonic phase array detection system and method are handled to the ultrasound echo signal from testee
During do not carry out down-sampled processing, directly retain original ultrasound echo signal data and with this carry out imaging and
Storage operation, can improve the resolution ratio and clarity of image obtained by ultrasonic imaging, to the maximum extent in this way so as to improve ultrasound
The accuracy of phased array detection.
The present invention provides a kind of ultrasonic phase array detection system based on initial data, which is characterized in that the ultrasound phase
Controlling battle array detection system includes:
Ultrasonic wave transmitting module, for projecting ultrasonic beam to target object;
Ultrasonic wave receiving module reaches the target object and by the target object for receiving the ultrasonic beam
Ultrasonic echo beam is formed by after reflection;
A/D conversion module, for the corresponding analog signal of the ultrasonic echo beam to be converted to a digital signal;
Processing module generates a primary data information (pdi) after carrying out Beam synthesis processing to the digital signal;
Display module is directly imaged for receiving the primary data information (pdi), and based on the primary data information (pdi)
Display;
Memory module for receiving the primary data information (pdi), and directly saves the primary data information (pdi) using as rear
The source data of continuous ultrasonic imaging calculation processing;
Further, the ultrasonic wave transmitting module includes arrayed ultrasonic transmitting unit, clock unit and actuating unit;Its
In, if the arrayed ultrasonic transmitting unit includes with line array, rectangular array, circular array or annular array
Dry ultrasonic transmitter;The clock unit generates a clock signal so that several ultrasonic transmitters are according to the clock signal
Successively ultrasonic beam is projected to the target object;The actuating unit each of has with several ultrasonic transmitters
One-to-one several actuators, each actuator can drive a corresponding ultrasonic transmitter, so that the ultrasound
Transmitter can continuously change its direction for projecting ultrasonic beam and/or intensity;
Further, the A/D conversion module includes a waveform processing unit and AD conversion unit;Wherein, the waveform
Processing unit has signal transmission interface, signal magnification processing and filter unit, and the signal transmission interface will come from institute
The ultrasonic echo beam for stating ultrasonic wave receiving module is sent to the signal magnification processing and carries out ultrasonic echo beam analog signal
Enhancing enhanced processing, then the filter unit to by it is described enhancing enhanced processing after ultrasonic echo beam analog signal into
The processing of row Kalman filtering;The AD conversion unit will be by the Kalman filtering treated ultrasonic echo beam simulation letter
Number it is converted into ultrasonic echo beam digital signal;
Further, the processing module carries out Beam synthesis processing to the digital signal and specifically includes the processing module
The beam direction angle information in the digital signal about the ultrasonic echo beam is obtained, and is based on the beam direction angle information
It determines the beam position information of the ultrasonic echo beam, then the digital signal is carried out based on the beam position information again
About the processing of the Beam synthesis in time domain and/or airspace, to exist what the Beam synthesis was handled about ultrasonic echo beam
Numbers pile up information in time domain and/or airspace is as the primary data information (pdi);
Further, the display module directly carries out imaging display based on the primary data information (pdi) and specifically includes described show
Show module based on the primary data information (pdi) show spatial distribution analog image of the ultrasonic echo beam in current scene and
The corresponding internal structure state simulation image of the target object;The memory module directly saves the primary data information (pdi) tool
Body includes that the primary data information (pdi) according to a clock signal is converted into a primary data information (pdi) queue collection by the memory module
It closes, and by the different data information preservation in the primary data information (pdi) collection of queues into different memory blocks;
The ultrasonic phase array detection method based on initial data that the present invention also provides a kind of, which is characterized in that the ultrasound
Phased array detection method includes the following steps:
Step (1) controls the emission parameter of ultrasonic beam and the ultrasonic beam is projected on target object, to realize
Ultrasonic beam scan operation to the target object;
Step (2) receives the ultrasonic beam and reaches the target object and formed after target object reflection
Ultrasonic echo beam;
The corresponding analog signal of the ultrasonic echo beam is converted to a digital signal, then to the number by step (3)
After signal carries out Beam synthesis processing, a primary data information (pdi) is formed;
Step (4) is based on the primary data information (pdi), directly carries out imaging and show and directly save the initial data
Source data of the information calculation processing to be imaged as subsequent ultrasonic;
Further, it in step (1), controls the emission parameter of ultrasonic beam and the ultrasonic beam is projected to target pair
As above specifically including according to each of clock signal control arrayed ultrasonic transmitting unit ultrasonic transmitter successively to institute
State target object projection ultrasonic beam;Alternatively, correspondingly controlling the respective ultrasonic beam of each ultrasonic transmitter by actuator
Emission state, so that each ultrasonic transmitter can continuously change its direction for projecting ultrasonic beam and/or intensity;
Further, in step (3), it is specific that the corresponding analog signal of the ultrasonic echo beam is converted into a digital signal
Including being obtained after the corresponding analog signal of the ultrasonic echo beam successively to be carried out to enhancing enhanced processing and Kalman filtering processing
Ultrasonic echo beam analog signal be converted into ultrasonic echo beam digital signal;
Further, in step (3), Beam synthesis processing is carried out to the digital signal and specifically includes the acquisition number
Beam direction angle information in signal about the ultrasonic echo beam, and the ultrasound is determined based on the beam direction angle information
The beam position information of echo beam, then again based on the beam position information to the digital signal carry out about time domain and/
Or airspace Beam synthesis processing, thus by the Beam synthesis handle about ultrasonic echo beam in time domain and/or sky
Numbers pile up information on domain is as the primary data information (pdi);
Further, in step (4), it is based on the primary data information (pdi), imaging display is directly carried out and specifically includes and be based on
The primary data information (pdi) shows spatial distribution analog image and the target pair of the ultrasonic echo beam in current scene
As corresponding internal structure state simulation image;Alternatively, be based on the primary data information (pdi), directly save the original number it is believed that
Breath, which is specifically included, is converted into a primary data information (pdi) collection of queues for the primary data information (pdi) according to a clock signal, and by institute
The different data information preservation in primary data information (pdi) collection of queues is stated into different memory blocks;
Compared with the prior art, the ultrasonic phase array detection system and method for the invention based on initial data is receiving
After ultrasound echo signal from testee, which is directly carried out at analog-to-digital conversion process and Beam synthesis
Generate a primary data information (pdi) after reason, and imaging directly carried out based on the primary data information (pdi) and by the original number it is believed that
Breath is directly saved the source data to calculate for subsequent analysis.As it can be seen that the ultrasonic phase array detection system and method are right
Ultrasound echo signal from testee does not carry out down-sampled processing in the process of processing, directly retains original
Ultrasound echo signal data and operation is imaged and stored with this, can be improved to the maximum extent obtained by ultrasonic imaging in this way
The resolution ratio and clarity of image, so as to improve the accuracy of ultrasonic phase array detection.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It refering to fig. 1, is a kind of knot of the ultrasonic phase array detection system based on initial data provided in an embodiment of the present invention
Structure schematic diagram.The ultrasonic phase array detection system includes ultrasonic wave transmitting module, ultrasonic wave receiving module, A/D conversion module, place
Manage module, display module and memory module.Wherein, which is used to project ultrasonic beam to target object, should
Ultrasonic beam can be reflected after reaching the target object by the surface of the target object, to form a ultrasonic echo beam;It should
Ultrasonic wave receiving module is used to receive the ultrasound that the ultrasonic beam reaches the target object and formed after target object reflection
Echo beam;The A/D conversion module is used to the corresponding analog signal of ultrasonic echo beam being converted to a digital signal;The processing mould
Block is used to carry out Beam synthesis processing to the digital signal and generates a primary data information (pdi);The display module is for receiving the original
Beginning data information, and imaging is directly carried out based on the primary data information (pdi) and is shown;The memory module is for receiving the initial data
Information, and the primary data information (pdi) is directly saved using the source data as subsequent ultrasonic imaging calculation processing.
Preferably, which may include arrayed ultrasonic transmitting unit, clock unit and actuating unit.
Preferably, which may include several ultrasound hairs formed with specific array spread pattern
Emitter;Preferably, which may include but be not limited to be linear array form, two-dimensional rectangle array format,
Two-dimensional circular array format or two-dimensional annular array format;Each of arrayed ultrasonic transmitter ultrasonic transmitter it
Between preferably work relatively independently, can automatically to the object project ultrasonic wave.In fact, due to different arrays
The ultrasonic wave that arrangement form arrayed ultrasonic reflector generates correspondingly has different distributions shape, and has different distributions shape
Ultrasonic scanning project on target object after can generate different reflection type ultrasonic echo beams, based on examining for above-mentioned this respect
Consider, those skilled in the art can be super according to the true form of the target object and the array of size selection suitable distribution shape
Acoustic transmitter, so that the target object can obtain complete ultrasonic scanning;Preferably, which sends out
Emitter is suitable for the target object with elongated shape, the ultrasound of the two-dimensional rectangle array format or two-dimensional circular array format
Transmitter is suitable for the target object with flat pattern, and the ultrasonic transmitter of the two-dimensional annular array format is suitable in three-dimensional
The substantially similar stereo structure target object of size on direction.
Preferably, which can be used for generating a clock signal, which is transferred to the arrayed ultrasonic
In transmitting unit, the subsequent arrayed ultrasonic transmitting unit can successively drive each according to particular order according to the clock signal
Ultrasonic transmitter emits ultrasonic wave;Preferably, which can believe for a series of clock that low and high level set collectively constitute
Number, wherein the low and high level set includes several low and high level logic sequences, is only included in each low and high level logic sequence
One high level, unique high level are used to indicate current needs and drive the corresponding ultrasonic wave transmitting of transmitting ultrasonic wave
Device, i.e. the arrayed ultrasonic wave launcher can carry out pair according to each of low and high level set low and high level logic sequence
The drive control of ultrasonic transmitter is answered, to guarantee to emit ultrasonic wave in only one ultrasonic transmitter of synchronization.
Preferably, which may include several actuators, and each actuator can drive a corresponding ultrasound
Transmitter, so that the ultrasonic transmitter can continuously change its direction for projecting ultrasonic beam and/or intensity.Preferably, should
Actuator can be but be not limited to one-dimensional linear actuator or two-dimensional surface actuator, wherein the one-dimensional linear actuator energy
Enough angles for changing ultrasonic transmitter projection ultrasonic wave along single direction, the two-dimensional surface actuator can be along being mutually perpendicular to
Both direction change the ultrasonic transmitter projection ultrasonic wave angle.
Preferably, which may include a waveform processing unit and AD conversion unit.Wherein, at the waveform
Reason unit may include but be not limited to signal transmission interface, signal magnification processing and filter unit;Signal transmission connects
Ultrasonic echo beam from the ultrasonic wave receiving module is sent to the signal magnification processing and carries out ultrasonic echo Shu Mo by mouth
The enhancing enhanced processing of quasi- signal, then the filter unit is to the ultrasonic echo beam analog signal after the enhancing enhanced processing
Carry out Kalman filtering processing.The AD conversion unit preferably will be by the Kalman filtering treated ultrasonic echo beam simulation
Signal is converted into ultrasonic echo beam digital signal.
Preferably, the process which carries out Beam synthesis processing to the digital signal may particularly include the processing mould
Block obtains the beam direction angle information in the digital signal about the ultrasonic echo beam, and is determined based on the beam direction angle information
The beam position information of the ultrasonic echo beam then again carries out about time domain the digital signal based on the beam position information
And/or airspace Beam synthesis processing, thus by the Beam synthesis handle about ultrasonic echo beam in time domain and/or sky
Numbers pile up information on domain is as the primary data information (pdi).
Preferably, the process which directly carries out imaging display based on the primary data information (pdi) may particularly include this
Display module shows spatial distribution analog image of the ultrasonic echo beam in current scene based on the primary data information (pdi) and should
The corresponding internal structure state simulation image of target object.Wherein, which directly saves the primary data information (pdi) tool
Body includes that the primary data information (pdi) according to a clock signal is converted into a primary data information (pdi) collection of queues by the memory module, and
By the different data information preservation in the primary data information (pdi) collection of queues into different memory blocks.
Correspondingly, referring to Fig.2, being a kind of ultrasonic phase array detection side based on initial data provided in an embodiment of the present invention
The flow diagram of method.Preferably, being somebody's turn to do the ultrasonic phase array detection method based on initial data is based on above-mentioned shown in FIG. 1 super
Sound phased array detection system and realize.Specifically, should ultrasonic phase array detection method based on initial data may include as
Lower step:
Step (1) controls the emission parameter of ultrasonic beam and the ultrasonic beam is projected on target object, with realization pair
The ultrasonic beam scan operation of the target object.
Preferably, it in the step (1), controls the emission parameter of ultrasonic beam and the ultrasonic beam is projected to target pair
As above may particularly include according to clock signal control each of arrayed ultrasonic transmitting unit ultrasonic transmitter successively to
The target object projects ultrasonic beam;Alternatively, correspondingly controlling the respective ultrasonic wave of each ultrasonic transmitter by actuator
Beam emission state, so that each ultrasonic transmitter can continuously change its direction for projecting ultrasonic beam and/or intensity.
Step (2) receives the ultrasound that the ultrasonic beam reaches the target object and formed after target object reflection
Echo beam.
The corresponding analog signal of ultrasonic echo beam is converted to a digital signal, then to the digital signal by step (3)
After carrying out Beam synthesis processing, a primary data information (pdi) is formed.
Preferably, in the step (3), which, which is converted to a digital signal, to have
Body includes obtaining after the corresponding analog signal of ultrasonic echo beam successively to be carried out to enhancing enhanced processing and Kalman filtering processing
Ultrasonic echo beam analog signal be converted into ultrasonic echo beam digital signal.
Preferably, in the step (3), carrying out Beam synthesis processing to the digital signal may particularly include the acquisition number
About the beam direction angle information of the ultrasonic echo beam in signal, and the ultrasonic echo beam is determined based on the beam direction angle information
Beam position information, then again based on the beam position information to the digital signal carry out about time domain and/or the wave in airspace
Shu Hecheng processing, to be folded what the Beam synthesis was handled about number of the ultrasonic echo beam in time domain and/or airspace
Add information as the primary data information (pdi).
Step (4) is based on the primary data information (pdi), directly carries out imaging and show and directly save the primary data information (pdi)
Using the source data as subsequent ultrasonic imaging calculation processing.
Preferably, in the step (4), it is based on the primary data information (pdi), directly carrying out imaging display may particularly include base
Spatial distribution analog image of the ultrasonic echo beam in current scene and the target object are shown in the primary data information (pdi)
Corresponding internal structure state simulation image;Alternatively, being based on the primary data information (pdi), it is specific directly to save the primary data information (pdi)
Including the primary data information (pdi) is converted into a primary data information (pdi) collection of queues according to a clock signal, and by the initial data
Different data information preservation in message queue set is into different memory blocks.
In addition, in order to eliminate in initial data due to subsequent calculating error caused by stochastic variable factor, it is also necessary to right
The initial data obtained in varied situations is fitted, since the distribution of stochastic variable factor in initial data can be approximately considered
Normal Distribution, therefore these initial data are carried out with the process of fitting treatment of normal distribution, specific normal distribution fitting formula is such as
Under:
In above-mentioned formula, M (n) is the initial data that n-th measurement obtains, M0For a reference value of initial data, k is to survey
The floating multiple of the initial data measured, n are pendulous frequency, and σ is the variance of variable n after normal state fitting of distribution, and μ is normal state point
The desired value of variable n after cloth fitting.
Again by 3 σ criterion it is found that fiducial probability can reach 99.74%, therefore again at this when working as n ∈ (+3 σ of μ -3 σ, μ)
Its average value is sought using INTEGRAL THEOREM OF MEAN in rangeSo that error reaches minimum, wherein average valueCalculating
Formula is as follows
From the content introduction of above-mentioned ultrasonic phase array detection system and method about this based on initial data it is found that the base
In the ultrasonic phase array detection system and method for initial data be using defects in ultrasonic testing qualitative systems and qualitative method as technology
Basic and realization, being somebody's turn to do ultrasonic phase array detection system and method based on initial data is in defects in ultrasonic testing qualitative systems
It is this important difference of initial data according to data processing object, to the defects in ultrasonic testing on the basis of qualitative method
Qualitative systems and qualitative method carry out the technology adjustment of adaptability.Specifically, the defects in ultrasonic testing qualitative systems and qualitative
Method is realized based on defects in ultrasonic testing Qualitative, and it is super which can be referred to as phased array again
Sound detection technology, when which is the delay by the reception and transmitting of the control each array element of array probe
Between, focusing, the scanning etc. of synthesis acoustic beam are formed, to realize the various scanning effects such as the polarization of ultrasonic beam, focusing, and final
High-resolution ultrasonic Flaw imaging is realized in scanning range.In addition, the defects in ultrasonic testing Qualitative (or phased array
Ultrasonic detecting technology) specific implementation may include but be not limited to be to construct the ultrasonic phase array detection system based on initial data
In system or the practical operations such as the reflector pattern extraction system based on sound field characteristics and extracting method.In the above-mentioned reality enumerated
Border operation in, the defects in ultrasonic testing Qualitative under phased array supersonic emission state, in array energy transducer each array element according to
Certain delay rule sequence excites, and the ultrasound emission beamlet of generation forms corresponding focus point and directive property in space combination,
And pass through the delay rule for changing each array element excitation, thus it is possible to vary the beam position of focal position is formed in certain space model
It is scanning focused in enclosing.
Furthermore, in the practical operation of the ultrasonic phase array detection system at this based on initial data, it is specifically
Based on the defects in ultrasonic testing Qualitative, after receiving the ultrasound echo signal from testee, to the ultrasonic echo
Signal generates a primary data information (pdi) after directly carrying out analog-to-digital conversion process and Beam synthesis processing, and be based on the original number it is believed that
Breath directly carries out imaging and saves the primary data information (pdi) directly to be used for the source data of subsequent analysis calculating;
In addition, being specifically to be based in the practical operation of the reflector pattern extraction system and extracting method based on sound field characteristics
The defects in ultrasonic testing Qualitative projects ultrasonic wave to a reflector, and using detect the reflector reflect the ultrasonic wave and
Formed about different receiving angles and about the ultrasonic echo of different depth, while the ultrasonic echo is targetedly believed
Number processing operation, to extract the shape characteristic about the reflector and calculate corresponding shape characteristic parameter.It is above-mentioned both
Although various forms of practical operations are respectively with different ultrasonic wave transmitting, reception and processing routine, both different forms
The targeted test object of practical operation be also different, but both practical operations are all qualitative with defects in ultrasonic testing
Technology is basic detection technique, and both of which is the system tune that adaptability is carried out on the basis of defects in ultrasonic testing Qualitative
It is whole;As it can be seen that defects in ultrasonic testing qualitative systems of the invention and qualitative method are substantially to belong to the basis of ultrasonic Flaw Detection
Technology, the purpose is to for providing ultrasonic Flaw Detection principle and data processing basis based on ultrasonic phase array P scanning mode,
And based on this, qualitative to the defects in ultrasonic testing in the case where specific defect test object or different detection data
Technology carries out the conversion of different implementation patterns, to obtain the above-mentioned ultrasonic phase array detection system based on initial data referred to
System or the different implementations such as the reflector pattern extraction system based on sound field characteristics and extracting method.
From above-described embodiment as can be seen that the ultrasonic phase array detection system and method based on initial data are receiving
After ultrasound echo signal from testee, which is directly carried out at analog-to-digital conversion process and Beam synthesis
Generate a primary data information (pdi) after reason, and imaging directly carried out based on the primary data information (pdi) and by the original number it is believed that
Breath is directly saved the source data to calculate for subsequent analysis;As it can be seen that the ultrasonic phase array detection system and method are right
Ultrasound echo signal from testee does not carry out down-sampled processing in the process of processing, directly retains original
Ultrasound echo signal data and operation is imaged and stored with this, can be improved to the maximum extent obtained by ultrasonic imaging in this way
The resolution ratio and clarity of image, so as to improve the accuracy of ultrasonic phase array detection.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.