WO2006024215A1 - Detecteur d'ultrasons et procede correspondant - Google Patents

Detecteur d'ultrasons et procede correspondant Download PDF

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Publication number
WO2006024215A1
WO2006024215A1 PCT/CN2005/001118 CN2005001118W WO2006024215A1 WO 2006024215 A1 WO2006024215 A1 WO 2006024215A1 CN 2005001118 W CN2005001118 W CN 2005001118W WO 2006024215 A1 WO2006024215 A1 WO 2006024215A1
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WO
WIPO (PCT)
Prior art keywords
probe
signal
ultrasonic
moving
pulse
Prior art date
Application number
PCT/CN2005/001118
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English (en)
Chinese (zh)
Inventor
Zhiguo Cui
Original Assignee
Zhiguo Cui
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhiguo Cui filed Critical Zhiguo Cui
Publication of WO2006024215A1 publication Critical patent/WO2006024215A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/8934—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a dynamic transducer configuration

Definitions

  • the present invention relates to an ultrasonic detecting method and apparatus, and more particularly to an ultrasonic detecting method and apparatus that can be applied to various occasions.
  • Background Art In order to realize a B-type scan in ultrasonic inspection, a line probe must be used. To implement a Type C or 3D scan, you must use a probe array.
  • the so-called line probe is a probe array consisting of a single probe in a straight line. When the sound wave is emitted, it is like a cut surface. The echoes at different depths are represented by different colors or gray scales, which is like in the workpiece or human tissue. There is a cutaway view.
  • a probe array is a surface consisting of a single array of probes.
  • both medical ultrasonic equipment and industrial ultrasonic non-destructive testing (inspection) equipment use the internal timing circuit to generate pulsed ultrasonic waves through the transmitting circuit to emit excitation pulses to the probe at a certain repetition frequency, and then receive ultrasonic waves for detection.
  • the structure of the prior art device includes a single probe or line probe, a transmitting/receiving circuit, a control/processing unit, an analog amplifying circuit, a display, and a human machine interface.
  • the equipment made in the traditional form, whether it is B-type scanning and C-type or 3D scanning on industrial testing equipment, or C-type or 3D scanning on medical equipment requires more complicated mechanical devices or Other electromagnetic devices are used to achieve regular and uniform movement of the probe.
  • the resulting B-type and C-type three-dimensional scanning patterns are distorted. This is due to moving the probe
  • the ultrasonic wave emitted every time is not physically spaced into the object to be detected at the detection surface of the detection object, so the information inside the object cannot be truly reflected.
  • the situation on the spot is ever-changing, and it is impossible to use a uniform moving device to drive the probe to realize a universal and suitable application for any occasion. Therefore, the current industrial ultrasonic testing equipment in the world is a type A scanning ultrasonic testing equipment, and medically, it is a type B scanning ultrasonic equipment (commonly known as B-ultrasound). There are no industrial Type B scans, C or 3D scanning equipment and medical C or 3D scanning equipment suitable for most practical applications.
  • a novel ultrasonic testing working method according to the present invention has the following detection steps:
  • the ultrasonic probe consisting of a single probe or a line probe moves on the detection surface of the object to be measured, and uses a mechanical electric pulse counting device that moves synchronously with respect to the ultrasonic probe or a device like a computer mouse to generate an object sensitive to the object to be detected.
  • a pulsed distance marker signal or a grid marker signal that detects a surface abscissa or/and an ordinate movement;
  • step 2 (2) transmitting the pulsed distance flag signal or the grid flag signal generated in step 1 to the control/processing unit, the control/processing unit synchronously controlling the transmission according to the occurrence of the pulsed distance flag signal or the grid flag signal
  • the circuit generates a high-voltage excitation pulse to the probe, and the probe generates an ultrasonic wave, which is coupled into the object to be inspected;
  • the ultrasonic probe After receiving the echo, the ultrasonic probe converts into an electrical pulse signal, which is amplified or attenuated by an analog amplifier circuit and transmitted to the control/processing unit for two-dimensional or three-dimensional imaging processing, and finally the display is completed by the display.
  • the structure of a novel ultrasonic detecting device according to the present invention comprises:
  • Ultrasonic single probe or line probe and probe physical position equidistant moving signal generating device Generating a high-voltage excitation pulse and receiving/receiving a circuit that converts the echo into an electrical pulse signal;
  • An analog amplification circuit that performs analog amplification or attenuation on an ultrasonic echo electrical pulse signal
  • control/processing unit that transmits pulses to the transmit/receive circuitry and processes the ultrasonic echo signals into two- or three-dimensional graphics signals;
  • a probe physical position equidistant movement signal generating device that moves synchronously with the probe is mounted, and the probe physical position equidistant movement signal generating device is disposed on the probe housing.
  • One side of the detecting surface which is sensitive to the abscissa or ordinate moving position of the detecting surface of the measured object, and capable of generating a pulsed distance indicating signal, including the physical position of the mechanical counting probe composed of the measuring wheel, the encoder wheel and the photoelectric sensor
  • a physical position distance moving sensor generating device such as a mouse sensor
  • an output end of the pulse signal or the grid mark signal of the probe physical position equidistant moving signal generating device is connected with the transmitting pulse trigger signal collecting end of the control/processing unit, and is controlled/ Processing unit Generating the trigger pulse output of high-voltage excitation pulse transmitting / receiving circuit is connected.
  • a novel ultrasonic detecting device as described above wherein the mechanical probe is physically positioned to move the measuring wheel in the equidistant moving signal generating device through the transmission gear or directly coupled to the encoder wheel, and the lower portion of the measuring wheel exposes the probe housing.
  • a novel ultrasonic detecting device as described above wherein the optical mouse sensor or the laser mouse sensor in the physical position equidistant moving signal generating device of the optical or laser probe is connected to the control/processing circuit of the position moving device through the circuit, the optical mouse
  • the lens portion of the lower portion of the sensor or laser mouse sensor is placed over the opening of the lower portion of the lens in the housing at a distance depending on the imaging requirements of the sensor, which constitutes an optical mouse sensor or laser mouse sensor imaging measurement window.
  • the invention Compared with the traditional ultrasonic testing working method and device, the invention has the following advantages Points and positive effects:
  • the invention uniformly divides the surface of the workpiece or the human body to be measured into a fixed distance or a grid, and moves with the probe by mechanical or optoelectronic devices. Each time a fixed distance or grid is moved, the device transmits an excitation pulse to the probe. By generating ultrasonic waves, the instrument receives and memorizes the echo information, and combines the echo data received and received multiple times as if a line probe or probe array is working, thus changing the traditional way of transmitting at a certain repetition frequency.
  • the working mode of transmitting at equal intervals of physical position overcomes the image distortion problem caused by non-uniform moving and the complicated structure of the device structure and algorithm, and truly realizes the purpose of truly reflecting the internal information of the object.
  • the unit step distance of the probe movement is determined according to the detection requirements. If the detection resolution is high, a relatively small step or grid is used. Conversely, a large step or grid can be used to achieve the accuracy adjustment function.
  • the regularly moving probe designed by the invention that is, the continuous moving probe mode of one row or one row or one column, can save the detection time, and it is not easy to miss any grid to achieve the purpose of accurate detection.
  • BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram showing the circuit composition of a conventional ultrasonic detecting device.
  • FIG. 2 is a block diagram showing the circuit composition of a novel ultrasonic detecting device according to the present invention
  • FIG. 3 is a schematic structural view showing an embodiment of the mechanical distance encoding device of the present invention
  • FIG. 4 is a schematic structural view of an embodiment of a distance encoding device composed of an optical mouse sensor or a laser mouse sensor of the present invention.
  • the circuit composition of the present invention is shown in FIG. 2, and the working principle is that the excitation pulse in the device is not repeatedly transmitted by the device itself at a certain frequency and the like, and then received, and then according to the movement of the probe. Production of excitation pulses, with the movement of the probe, and exploration
  • the head-connected linkage device can provide the physical position movement signal of the probe to the device at regular intervals, and the device generates an excitation pulse according to the movement signal, thereby generating an ultrasonic wave, which is coupled into the object to be inspected and receives the ultrasonic echo signal for processing.
  • a uniformly distributed ultrasonic sound ray can be generated in the object to be inspected, thereby realizing an undistorted B-type scan and a C-type or three-dimensional scan.
  • the device for generating the physical position of the probe with the physical displacement of the probe at equal intervals can be selected from a computer peripheral mouse or a self-made position moving device, and the conversion and modification of the working mode are easy to implement, so It is easy to use in the probe linkage of the present invention.
  • the mouse of the computer peripheral includes one of a mechanical photoelectric type, an optical mouse sensor or a laser mouse sensor.
  • the position moving device In the working mode of the invention, as the probe moves, the position moving device generates a probe movement signal to the control/processing unit, and the control/processing unit transmits a pulse to the transmitting/receiving circuit, and the transmitting/receiving circuit generates a high-voltage excitation pulse to the probe.
  • the probe generates ultrasonic waves, which are coupled into the object to be inspected, and the ultrasonic waves encounter different media to generate echoes.
  • the probe receives the echoes and converts them into electric pulse signals and transmits them to the receiving circuit, which is amplified or attenuated by the analog amplifying circuit and transmitted to the control/processing unit. Processing, and then sent to the display to display in a corresponding form. According to the displayed graphic, the information inside the detected object can be obtained, and it can be judged whether there is a defect or a lesion inside the object.
  • FIG. 1 A specific embodiment of a mechanical physical position encoding device constructed with an encoder wheel and a photoelectric sensor of the present invention can be seen in FIG.
  • a counting through hole is arranged around the encoder wheel 2, and a photoelectric sensor 3 is arranged near the encoder wheel corresponding to the counting through hole, and the encoder wheel 2 is fixed to the housing through the shaft 1 1 .
  • the lower portion of the detecting row wheel 9 exposes the casing 1.
  • the output of the photosensor 3 is connected to the trigger input of the control/processing unit in the circuit board 12 in the housing 1.
  • the housing 1 is connected to the ultrasonic wave transmitting and receiving probe 7.
  • an encoder wheel and a photoelectric sensor can be used.
  • a nylon gear or an instrument gear to drive the encoder wheel to rotate at a certain distance (eg 100 mm, Generate 200 pulses. That is, a pulse is generated every 0.5 mm.
  • the rotation of the encoder wheel causes the output of the photoelectric sensor and its circuit to generate a level signal of the displacement pulse and the moving direction, so that the line distance of the rotating wheel is rotated (ie, the probe is moved).
  • the distance is transmitted to the control/processing unit of the flaw detection device in pulses, and the direction of the movement is transmitted to the control/processing unit in the form of a level (eg, forward low, back high).
  • the stepping direction of the probe movement is determined by the flaw detection standard, and the detection resolution is required to be high, and the relatively small probe is used to move the step. Instead, use a larger probe step. Since each step of the probe is equidistantly coupled to generate a step pulse, the control/processing unit controls the transmitting circuit to emit an excitation pulse to the probe according to the detected leading edge of the stepping pulse, so that each time the workpiece is emitted from the workpiece Ultrasonic sound rays are equally spaced.
  • FIG. 4 A specific embodiment of the positional motion coded pulse generating device constructed based on the optical mouse sensor or the Laser Mouse Sensor of the present invention can be seen in FIG.
  • the lower detecting surface of the casing 1 has a light transmitting hole, and an optical mouse or laser mouse sensor assembly device 14 (computer mouse) is fixed in the casing 1 at the light transmitting hole.
  • the ultrasonic probe 7 is fixed to the detecting surface of the casing 1.
  • the optical mouse or laser mouse sensor assembly device 14 is coupled to a control/processing unit in the circuit board 12 in the housing to produce a positional movement signal and a direction signal.
  • the control/processing unit is composed of a control/processing unit of a conventional ultrasonic detecting device and is added to a control pulse transmitting circuit, which has a function of receiving an ultrasonic echo signal and performing two-dimensional or three-dimensional image processing, and provides a trigger for transmitting a excitation pulse to the probe.
  • the function of the signal In the present invention, the control/processing unit controls the transmitting circuit to emit an excitation pulse to the probe according to the detected leading edge of the stepping pulse, or according to the communication protocol of the optical mouse. Computer mouse communication protocol) At each grid, the control transmitter circuit emits pulses of the excitation probe.
  • the probe movement signal in both directions on the plane coordinates is required because the simulation probe array operation is required.
  • Using an optical mouse or laser mouse with good quality on the market after disassembly and assembly, reassemble it with an ultrasonic probe.
  • the communication protocol (or driver) of the mouse is ready-made. Make sure the mouse is on the abscissa and ordinate.
  • Moving 0.5 mm (other dimensions can also be selected, depending on the resolution required for detection) is a grid, which is equivalent to dividing the detection surface of the detected object into a grid with 0.5 mm in both abscissa and ordinate.
  • the control/processing unit of the ultrasonic detecting device controls the transmitting circuit to emit the pulse of the excitation probe according to the probe at each grid, which is like the mouse in the computer, no matter where the probe moves.
  • the control/processing unit of the detecting device is clear, as long as the transmitting circuit emits an excitation pulse on the grid, the control/processing unit processes the ultrasonic echo signal in a three-dimensional pattern and displays it on the screen to form an internal object. In 3D graphics, C- or 3D inspection of objects is achieved.
  • the unit step distance of the probe movement is determined according to the detection requirements, and the detection resolution is required to be high, and a relatively small grid is used. Instead, use a larger grid.
  • the ultrasonic sound lines emitted each time in the workpiece are equally spaced, so that no distortion occurs. This is because the generation of each pulsed ultrasonic wave is only related to the position at which the probe moves, and has nothing to do with the speed of the movement. Therefore, it is easy to realize the C-type or three-dimensional scanning detection by moving the probe regularly at an arbitrary speed.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

La présente invention concerne un détecteur d'ultrasons et le procédé correspondant. Ce détecteur comprend une sonde à ultrasons et un dispositif de liaison, un circuit d'émission-réception, un processeur-contrôleur, un afficheur, et une interface interactive. Un appareil qui se déplace en synchronisme avec la sonde est situé dans le dispositif de liaison de la sonde à ultrasons. L'appareil, qui est constitué d'un contre-type mécanique ou d'un type semblable à la structure de la souris photoélectrique, sert à générer le signal de déplacement équidistant de la position physique de la sonde. Le compteur mécanique d'impulsions électriques ou le dispositif à souris photoélectrique sert à générer un signal de marquage de distance de certitude d'impulsions ou un signal de marquage de grille qui est sensible ou mouvement de l'abscisse et/ou de l'ordonnée de la surface de détection de l'objet détecté. Le circuit d'émission commandé en synchronisme par l'appareil produit l'impulsion d'actionnement à haute tension pour la sonde et ensuite, la sonde produit l'ultrason qui se communique à l'objet détecté par couplage. La présente invention résout le problème de la distorsion d'image provoquée par le déplacement à vitesse non uniforme et réalise l'objectif de produire l'impulsion d'actionnement en fonction du signal du déplacement de la position physique, recevant et traitant le signal d'onde d'écho, et par conséquent renvoyant réellement l'information interne.
PCT/CN2005/001118 2004-09-01 2005-07-26 Detecteur d'ultrasons et procede correspondant WO2006024215A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB200410073690XA CN1312487C (zh) 2004-09-01 2004-09-01 一种新型超声波检测装置及检测方法
CN200410073690.X 2004-09-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103076396A (zh) * 2012-11-11 2013-05-01 国家电网公司 一种电力钢构件超声检测装置
CN112255309A (zh) * 2020-09-16 2021-01-22 中车长春轨道客车股份有限公司 一种用于粘接复合结构的在线无损检测系统
CN113777614A (zh) * 2021-09-07 2021-12-10 珠海上富电技股份有限公司 一种超声波雷达数据传输方法及其系统

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CN101858890B (zh) * 2010-05-14 2011-10-26 东南大学 小尺寸材料浅层缺陷检测系统
CN101923167A (zh) * 2010-07-20 2010-12-22 田红阳 运动器材及玩具行业中测量距离及高度的装置及其实现方法
CN102682421B (zh) * 2012-03-14 2014-04-02 飞依诺科技(苏州)有限公司 超声图像的实时放大方法
CN103822972B (zh) * 2014-02-18 2016-08-17 北京万东康源科技开发有限公司 一种超声波信号动态调整方法、装置及系统
CN104889177B (zh) * 2014-03-05 2016-09-07 鞍钢股份有限公司 一种探伤机系统安全防护方法
CN105911147A (zh) * 2016-06-30 2016-08-31 湘潭大学 一种智能声波扫描检测仪及检测方法
CN109717719B (zh) * 2017-10-30 2021-09-03 佛山市顺德区美的电热电器制造有限公司 烹饪设备和烹饪设备的控制方法
CN109162699B (zh) * 2018-11-05 2020-02-14 中国矿业大学 一种适应不同钻孔直径的自行进窥视探头及窥视方法
CN109752723B (zh) * 2019-01-07 2020-12-29 北京臻迪科技股份有限公司 一种水下地形图绘制方法及装置
CN116170087B (zh) * 2022-12-29 2023-11-10 深圳大学 一种微秒级超短脉冲水声信号检测方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4908774A (en) * 1986-05-05 1990-03-13 Akademiet For De Tekniske Videnskaber System for ultrasonic examination
US5538004A (en) * 1995-02-28 1996-07-23 Hewlett-Packard Company Method and apparatus for tissue-centered scan conversion in an ultrasound imaging system
CN1189217A (zh) * 1995-06-29 1998-07-29 垓技术公司 便携式超声成像系统
JPH10216127A (ja) * 1997-02-07 1998-08-18 Hiromi Nanba 超音波診断装置とその画像処理用アダプタ装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6328694B1 (en) * 2000-05-26 2001-12-11 Inta-Medics, Ltd Ultrasound apparatus and method for tissue resonance analysis
CN1342442A (zh) * 2000-09-13 2002-04-03 王雪乔 手掌式数字化多功能超声波诊断仪
CN2724016Y (zh) * 2004-09-01 2005-09-07 崔志国 一种新型超声波检测装置
JP2007120859A (ja) * 2005-10-27 2007-05-17 Hitachi Metals Ltd 燃焼炉スラグ回収水封部の蒸発防止装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4908774A (en) * 1986-05-05 1990-03-13 Akademiet For De Tekniske Videnskaber System for ultrasonic examination
US5538004A (en) * 1995-02-28 1996-07-23 Hewlett-Packard Company Method and apparatus for tissue-centered scan conversion in an ultrasound imaging system
CN1189217A (zh) * 1995-06-29 1998-07-29 垓技术公司 便携式超声成像系统
JPH10216127A (ja) * 1997-02-07 1998-08-18 Hiromi Nanba 超音波診断装置とその画像処理用アダプタ装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103076396A (zh) * 2012-11-11 2013-05-01 国家电网公司 一种电力钢构件超声检测装置
CN112255309A (zh) * 2020-09-16 2021-01-22 中车长春轨道客车股份有限公司 一种用于粘接复合结构的在线无损检测系统
CN113777614A (zh) * 2021-09-07 2021-12-10 珠海上富电技股份有限公司 一种超声波雷达数据传输方法及其系统

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CN1743869A (zh) 2006-03-08

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