CN106124629B - A kind of ultrasound excitation method for ultrasound tomography system - Google Patents
A kind of ultrasound excitation method for ultrasound tomography system Download PDFInfo
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- CN106124629B CN106124629B CN201610742109.1A CN201610742109A CN106124629B CN 106124629 B CN106124629 B CN 106124629B CN 201610742109 A CN201610742109 A CN 201610742109A CN 106124629 B CN106124629 B CN 106124629B
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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
- G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
- G01N29/0654—Imaging
- G01N29/0672—Imaging by acoustic tomography
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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
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The present invention discloses a kind of ultrasound excitation method for ultrasound tomography system, emits fan-shaped ultrasonic signal by the dual sensor energisation mode in sensor group, so that the main lobe of two Wideband Fan ideophone beams is met in the water of pipeline, synthesize a branch of ultrasonic signal；Sound pressure signal amplitude after synthesis significantly improves；By emitting the position of two sensors of ultrasonic wave in control sensor group, different ultrasonic composite signals, with different directive property, check frequency and signal strength can be obtained；It can receive unlike signal amplitude by remaining ultrasonic sensor in sensor group, convenient for the extraction and identification of signal, while having obtained the ultrasound detection signal with high-resolution and high-penetration.Using technical solution of the present invention, the acoustic information of bubble in pipeline can be more completely extracted, is suitable for detection of the ultrasound tomography system to having strong heteropical multiphase flow.
Description
Technical field
The invention belongs to field of non destructive testing, and in particular to a kind of ultrasonic action side for ultrasound tomography system
Method.
Background technique
Ultrasound tomography (Ultrasound Computerized Tomography, UCT) technology be process chromatography at
As one of the hot spot of technology (Process Tomography, PT) research, it is concentrated mainly on using the technology measurement process parameters
Medical treatment detection, multiphase flow parameter detecting and non-destructive testing.The energisation mode of UCT sensor is that the important of UCT system optimization is ground
Study carefully content.
The energisation mode of UCT system sensor is usually a sharp more receipts, cycle motivation.Single sensor inspires ultrasonic letter
Number amplitude it is smaller, simultaneously because tube wall and internal each phase constituent acoustic impedance difference are larger in UCT system, sound wave is situated between in multiphase
Reflection, scattering can occur when propagating in matter and by reasons such as Interface Absorptions, keep sound wave attenuation amplitude when propagating big.With propagation
The increase of distance, acoustic attenuation is even more serious, and receiving sensor can only receive faint signal, extracts useful less than apparent
Information leads to poor imaging results.
Summary of the invention
The technical problem to be solved by the present invention is to improve the amplitude of pumping signal in ultrasound tomography system, improving
Image quality and resolution ratio, the present invention provide a kind of ultrasound excitation method for ultrasound tomography system.
To solve the above problems, the present invention adopts the following technical scheme that:
A kind of ultrasound excitation method for ultrasound tomography system, the ultrasound tomography system (UCT system)
Comprising a pipeline, the ultrasound excitation method the following steps are included:
Step S1, ultrasonic sensor group is set
The ultrasonic sensor group include the 1st ultrasonic sensor, the 2nd ultrasonic sensor ..., the 16th ultrasonic sensor,
It is made of 16 standalone ultrasound sensors, each ultrasonic sensor can excite and receive Wideband Fan ideophone beam, 16 sensors
It is distributed at equal intervals on pipeline outer wall counterclockwise, the surface of each ultrasonic sensor is flat with pipe surface always
Row；
Step S2, the excitation and reception of ultrasonic signal
The 2nd ultrasonic sensor is controlled first and the 16th ultrasonic sensor emits the width with identical frequency and field angle simultaneously
The fan-shaped ultrasonic signal A of band1And B1, couple the main lobe of two fan-shaped acoustic beams in the water of pipeline, synthesize a branch of ultrasonic signal
C1, it is defined as the ultrasonic composite signal of two sensors, successively controls the 3rd ultrasonic sensor and the 15th ultrasonic sensor, the 4th
Sonic transducer and the 14th ultrasonic sensor emit ultrasonic wave A2And B2、A3And B3, can be obtained the respective ultrasound of two sensors and close
At signal C2、C3；Excitation arbitrary neighborhood or separately two sensor emission ultrasonic waves, every two sensor are circuited sequentially in this way
The ultrasound synthesis of sending is a ultrasonic signal, and remaining ultrasonic sensor receives ultrasound synthesis letter in subsequent sensor group
Number, while time-domain analysis is carried out to ultrasonic composite signal.
Preferably, each ultrasonic sensor is fixed on pipeline outer wall by couplant.
Compared with prior art, beneficial effects of the present invention are as follows:
1, it by the dual sensor energisation mode in sensor group, realizes signal coupling, increases the width of synthesis ultrasonic signal
Value can receive receiving sensor and relatively detect signal by force, more completely can extract and identify the acoustics of bubble in pipeline
Information.
2, increase system detection data volume, improve image quality and resolution ratio.
Detailed description of the invention
Basic device figure Fig. 1 of the invention；
Basic principle schematic Fig. 2 of the invention；
The ultrasonic signal of any dual sensor group of Fig. 3 cycle motivation synthesizes schematic diagram；
The sound pressure amplitude schematic diagram of Fig. 4 dual sensor group ultrasonic signal synthesis front and back.
Specific embodiment
The embodiment of the present invention provides a kind of ultrasound excitation method for ultrasound tomography system, the ultrasonic ct at
Picture system (UCT system) includes a pipeline, and the pipeline is the steel pipe (round tube) with certain wall thickness, fills liquid in pipeline,
Liquid contains bubble, the ultrasound excitation method the following steps are included:
Step S1, ultrasonic sensor group is set
The ultrasonic sensor group is made of 16 standalone ultrasound sensors, 16 ultrasonic sensor properties having the same
(such as resonant frequency, field angle), the ultrasonic sensor can excite/receive Wideband Fan ideophone beam, and 16 sensors are from first
Ultrasonic sensor starts to be distributed at equal intervals on pipeline outer wall counterclockwise, the surface of ultrasonic sensor always with pipeline
Surface is parallel, and each ultrasonic sensor is fixed on pipeline outer wall by couplant.As shown in Figure 1, number 1-16 represents 16
Ultrasonic sensor, i.e. the 1st ultrasonic sensor 1, the 2nd ultrasonic sensor 2 ..., the 16th ultrasonic sensor 16, outer ring great circle 17 is
Pipeline, the eccentric roundlet 18 in great circle 17 are bubble, and 19 in great circle 17 represent the liquid in pipeline.
Step S2, the excitation and reception of ultrasonic signal
The field angle of ultrasonic sensor generally refers to main beam directivity function and drops to primary maximum in principal maximum two sides
Value 0.707 angle, for make ultrasonic sensor issue ultrasonic wave received by most receiving sensor, therefore motivate and
Receiving sensor selects the biggish ultrasonic sensor of field angle.As shown in Figure 2,3, first with the 2nd ultrasound of controller control
Sensor 2 and the 16th transmitting simultaneously of ultrasonic sensor 16 have the broadband sector ultrasonic signal A of identical frequency and field angle1And B1,
The field angle of two sensors is θ, couples the main lobe of two fan-shaped acoustic beams in the water of pipeline, synthesizes a branch of ultrasound letter
Number C1, it is defined as the ultrasonic composite signal of two sensors, the field angle of the ultrasound composite signal is also θ.Successively control the 3rd
Ultrasonic sensor 3 and the 15th ultrasonic sensor 15, the 4th sonic transducer 4 and the 14th ultrasonic sensor 14 emit ultrasonic wave A2And B2、
A3And B3, can be obtained the respective ultrasonic composite signal C of two sensors2、C3.Excitation arbitrary neighborhood or phase are circuited sequentially in this way
Two sensor emission ultrasonic waves are spaced, the ultrasound synthesis that every two sensor issues is a ultrasonic signal, is then sensed
Remaining ultrasonic sensor receives ultrasonic composite signal in device group, while carrying out time-domain analysis to ultrasonic composite signal, after synthesis
The amplitude of ultrasonic signal significantly increases.
As shown in figure 4, the present invention emits broadband sector ultrasonic signal by the dual sensor energisation mode in sensor group,
2nd ultrasonic sensor 2 and the 16th transmitting simultaneously of ultrasonic sensor 16 have the fan-shaped ultrasound letter in the broadband of identical frequency and field angle
Number, A is formed in water1And B1Two fan-shaped acoustic beams, sound pressure amplitude is respectively p1And p2, two fan-shaped acoustic beam A1And B1Propagate one
After the fixed time, main lobe couples in the water of pipeline, synthesizes a branch of ultrasonic signal C1, the sound pressure signal amplitude after synthesis is
p.Then successively control the 3rd ultrasonic sensor 3 and the 15th ultrasonic sensor 15, the 4th sonic transducer 4 and the 14th ultrasonic sensor 14
Emit ultrasonic wave A2And B2、A3And B3Deng can be obtained the respective ultrasonic composite signal C of two sensors2、C3Deng.So successively
Cycle motivation arbitrary neighborhood or separately two sensor emission ultrasonic wave AiAnd Bi, sound pressure amplitude is respectively p '1And p '2, often
The ultrasonic wave A that two sensors issueiAnd BiAfter propagating the regular hour, main lobe couples in the water of pipeline, synthesizes one
Ultrasonic signal Ci, the sound pressure signal amplitude after synthesis is p ', and remaining ultrasonic sensor receives ultrasound and closes in subsequent sensor group
At signal.It is learnt using the means of time-domain analysis, the sound pressure signal amplitude after synthesis significantly improves.By in control sensor group
The position (interval) for emitting two sensors of ultrasonic wave, can be obtained different ultrasonic composite signals, with different fingers
Tropism, check frequency and signal strength.It can receive unlike signal amplitude by remaining ultrasonic sensor in sensor group,
Convenient for the extraction and identification of signal, while the ultrasound detection signal with high-resolution and high-penetration is obtained.It can be completeer
Site preparation extracts the acoustic information of bubble in pipeline, is suitable for ultrasound tomography system to strong heteropical multiphase flow
Detection.
Claims (2)
1. a kind of ultrasound excitation method for ultrasound tomography system, the ultrasound tomography system includes a pipeline,
The ultrasound excitation method the following steps are included:
Step S1, ultrasonic sensor group is set
The ultrasonic sensor group include the 1st ultrasonic sensor, the 2nd ultrasonic sensor ..., the 16th ultrasonic sensor, by 16
A standalone ultrasound sensor composition, each ultrasonic sensor can excite and receive Wideband Fan ideophone beam, and 16 sensors are by inverse
Clockwise is distributed at equal intervals on pipeline outer wall, and the surface of each ultrasonic sensor is parallel with pipe surface always；
It is characterized by further comprising:
Step S2, the excitation and reception of ultrasonic signal
The 2nd ultrasonic sensor is controlled first and the 16th ultrasonic sensor emits the Wideband Fan with identical frequency and field angle simultaneously
Shape ultrasonic signal A1And B1, couple the main lobe of two fan-shaped acoustic beams in the water of pipeline, synthesize a branch of ultrasonic signal C1, fixed
Justice is the ultrasonic composite signal of two sensors, successively controls the 3rd ultrasonic sensor and the 15th ultrasonic sensor, the 4th sound pass
Sensor and the 14th ultrasonic sensor emit ultrasonic wave A2And B2、A3And B3, can be obtained the respective ultrasound synthesis letter of two sensors
Number C2、C3；Excitation arbitrary neighborhood or separately two sensor emission ultrasonic waves are circuited sequentially in this way, and every two sensor issues
Ultrasound synthesis be a ultrasonic signal, remaining ultrasonic sensor receives ultrasonic composite signal in subsequent sensor group, together
When to ultrasonic composite signal carry out time-domain analysis.
2. being used for the ultrasound excitation method of ultrasound tomography system as described in claim 1, which is characterized in that each ultrasound
Sensor is fixed on pipeline outer wall by couplant.
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| CN106814137B (en) * | 2017-02-28 | 2020-10-30 | 北京工业大学 | Omnidirectional excitation method for ultrasonic tomography |
| CN106940344B (en) * | 2017-03-31 | 2019-06-21 | 西北工业大学 | Integrative ultrasonic sensor and application method for ultrasound tomography system |
| CN109655525A (en) * | 2018-12-24 | 2019-04-19 | 中国电子科技集团公司第二十研究所 | A kind of relative excitation method for ultrasound tomography system |
| CN110967400A (en) * | 2019-12-25 | 2020-04-07 | 电子科技大学 | Lamb wave tomography method for defects of large storage tank bottom plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762635A (en) * | 2008-12-25 | 2010-06-30 | 中国石油天然气股份有限公司 | Method for detecting guide waves of steel storage tank bottom plate |
| CN103336145A (en) * | 2013-06-18 | 2013-10-02 | 清华大学 | Ultrasonic imaging method and device for axial flow field of fluid in pipeline |
| CN104950041A (en) * | 2015-06-15 | 2015-09-30 | 北京工业大学 | Sensor device for ultrasonic-computed tomography |
| CN205157501U (en) * | 2015-12-11 | 2016-04-13 | 傅水娟 | A send -receiver device for ultrasonic non -destructive testing equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7117742B2 (en) * | 2003-09-22 | 2006-10-10 | Advanced Structure Monitoring, Inc. | Sensors and systems for structural health monitoring |
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- 2016-08-26 CN CN201610742109.1A patent/CN106124629B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762635A (en) * | 2008-12-25 | 2010-06-30 | 中国石油天然气股份有限公司 | Method for detecting guide waves of steel storage tank bottom plate |
| CN103336145A (en) * | 2013-06-18 | 2013-10-02 | 清华大学 | Ultrasonic imaging method and device for axial flow field of fluid in pipeline |
| CN104950041A (en) * | 2015-06-15 | 2015-09-30 | 北京工业大学 | Sensor device for ultrasonic-computed tomography |
| CN205157501U (en) * | 2015-12-11 | 2016-04-13 | 傅水娟 | A send -receiver device for ultrasonic non -destructive testing equipment |
Non-Patent Citations (2)
| Title |
|---|
| Ultrasonic transmission-Mode Tomography Imaging for Liqued/Gas Two-Phase Flow;Mohd Hafiz Fazalul Rahiman et al.;《IEEE SENSORS JOURNAL》;20061231;第6卷(第6期);第1706-1715页 |
| 颗粒两相流超声过程层析成像系统研究;田昌等;《南京大学学报（自然科学）》;20130131;第49卷(第1期);第1.2节及图3 |
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