CN112683992B - Positioning device and method capable of simultaneously detecting magnetic acoustic signals and electric field by noise-containing shielding - Google Patents
Positioning device and method capable of simultaneously detecting magnetic acoustic signals and electric field by noise-containing shielding Download PDFInfo
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- CN112683992B CN112683992B CN202011530920.6A CN202011530920A CN112683992B CN 112683992 B CN112683992 B CN 112683992B CN 202011530920 A CN202011530920 A CN 202011530920A CN 112683992 B CN112683992 B CN 112683992B
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Abstract
A positioning device and method for detecting magnetic-acoustic signal and electric field simultaneously by noise-containing shield comprises a shield shell with an opening at upper end, a loading platform and a permanent magnet loading platform for loading a sample to be detected are arranged in the shield shell, through holes are symmetrically formed on the left side wall and the right side wall of the shield shell, and run through the electrode of connecting the outside excitation source through the wire, be provided with the fretwork scale that can remove along width direction or length direction on the last port of shielding shell, be provided with the ultrasonic transducer bearing structure that can follow the removal of fretwork scale perpendicularly on the fretwork scale, the last port of shielding shell still be provided with along fretwork scale fixed connection's left shield plate and right shield plate, the homoenergetic covers the last port of shielding shell when the length of left shield plate and right shield plate will guarantee to slide the optional position of port on the shielding shell along with the fretwork scale. The invention can carry out double shielding on external noise and an electromagnetic field, and avoids the noise of the external environment and the interference of the electromagnetic field on experimental measurement.
Description
Technical Field
The invention relates to an auxiliary positioning measurement and shielding device. In particular to a positioning device and a method which contain noise shielding and can simultaneously detect magnetic acoustic signals and electric fields.
Background
The biological tissue has complex distribution of electrical characteristics, carries rich physiological and pathological information, but lacks effective detection means for current distribution in the tissue. A weak electric stimulation current detection method based on a magnetoacoustic coupling effect combines the advantages of high sensitivity of electric characteristic detection and high spatial resolution of ultrasound, and is based on the principle that electrodes are injected into an experimental material placed in a constant magnetic field, an alternating magnetic field is simulated by current, the current in the constant magnetic field is acted by Lorentz force, charged particles in the experimental material generate instantaneous displacement to form sound wave vibration, a vibration source transmits the vibration of the sound wave to the surface of the material, and then the sound wave can be detected by an acoustic probe outside the experimental material and converted into an electric signal, and then subsequent processing and analysis of data are carried out. The method has great application potential in noninvasive precision measurement and imaging of current distribution in the electrical stimulation tissue.
Magnetoacoustic coupling imaging relates to cross application of multiple physical quantities such as electricity, magnetism, sound and the like, an image reconstruction algorithm of magnetoacoustic imaging is still in a research stage, and obtaining more abundant and accurate measurement data in an experiment provides powerful data support for deep research of magnetoacoustic imaging, so that how to avoid external noise interference makes the measured experiment data more accurate, which is an important premise for researching magnetoacoustic imaging related problems.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a positioning device and a positioning method which can carry out double shielding on external noise and an electromagnetic field in an experimental detection process, avoid the noise of an external environment and the interference of the electromagnetic field on experimental measurement and can simultaneously detect a magnetoacoustic signal and an electric field.
The technical scheme adopted by the invention is as follows: the utility model provides a noise-containing shielding can detect positioner of magnetoacoustic signal and electric field simultaneously, including being used for carrying out the upper end open-ended shielding casing that shields external electromagnetic field and noise, shielding casing in be provided with the cargo platform who is used for bearing the weight of the sample of being surveyed, and be located be used for providing the permanent magnet load-bearing platform in magnetic field to the sample of being surveyed between cargo platform and the shielding casing preceding lateral wall, symmetrical being formed with the through-hole respectively on shielding casing's the left side wall and the right side wall, the through-hole runs through have connect outside excitation source, be used for carrying out the electrode that the electric current was poured into to the sample of being surveyed through the wire, be provided with the fretwork scale along width direction or length direction on shielding casing's the last port, the fretwork scale can follow the length direction or the width direction removal of last port, it can follow the supersound scale acoustic signal that the fretwork scale length direction removed that is used for gathering the sample acoustic signal of being surveyed that the fretwork scale length direction removed to correspond on the fretwork scale to be surveyed to be provided with perpendicularly Transducer bearing structure, shielding housing's last port still is provided with left shield plate and right shield plate that is used for carrying out the shielding to shielding housing inside from the upper end, a side difference fixed connection of left side shield plate and right shield plate is on the side of the fretwork scale that corresponds, and follows the fretwork scale removes together, the width of left side shield plate and right shield plate with shielding housing's width is the same, the length of left side shield plate and right shield plate will be guaranteed when the fretwork scale slides the optional position of port on shielding housing, left side shield plate and right shield plate homoenergetic cover shielding housing's last port is lived external noise and electromagnetic interference shielding.
A method for using a positioning device with noise shielding and capable of detecting a magnetic acoustic signal and an electric field simultaneously comprises the steps of placing a sample to be detected on an object carrying platform when measuring a sound field generated by electromagnetic coupling in an experiment, placing a permanent magnet on a permanent magnet bearing platform, connecting an electrode connected with an external excitation source through a lead with the sample to be detected through a through hole to lead in current, generating pulse signals with set frequency, strength and waveform, clamping hollow scales with two sides connected with a left shielding plate and a right shielding plate on the upper port of a shielding shell through folded edges at two ends of the hollow scales, adjusting the relative positions of the hollow scales and the sample to be detected, clamping a hollow tube device on the hollow scales through a sliding block, adjusting the distance between the hollow tube loaded with an ultrasonic transducer and the sample to be detected, connecting an upper port of a hollow tube in the hollow tube device with the ultrasonic transducer through an elastic hose as an adapter to enable sound waves transmitted from a lower port of the hollow tube to be detected by the ultrasonic transducer, and leading out the measured electric signal of the measured sample through a lead connected with the upper end of the probe.
The positioning device and the positioning method for simultaneously detecting the magnetoacoustic signal and the electric field by the noise-containing shield can double shield the external noise and the electromagnetic field in the experimental detection process, and avoid the noise and the electromagnetic field of the external environment from interfering the experimental measurement. And the precise detection of the magnetoacoustic coupling acoustic signal and the electric field can be simultaneously carried out, and the signal detected by the test is positioned in a three-dimensional space, so that the distribution of the magnetoacoustic coupling acoustic signal in the space and the distribution of the electric field on the surface and in the interior of the test material during the test can be obtained. When the invention is used for electric field detection, the invention has the advantages of not generating electromagnetic interference to the internal space of the experimental device and being capable of penetrating the surface of the experimental material to measure the internal electric field distribution without generating damage to the experimental material or the experimental living body.
The outer layer of the wire connected with the excitation source is the fluoroplastic insulating layer which has excellent electrical insulating property and is suitable for high-frequency signal transmission, and the inner layer is the copper conductive wire which can be bent freely. Therefore, the device has the advantages of being widely applicable to experiments of Hz-level low-frequency-MHz-level high-frequency and V-level weak-voltage-kV-level high-voltage excitation sources and experimental materials with different sizes.
Drawings
FIG. 1 is a schematic diagram of the overall configuration of a positioning device of the present invention that includes a noise shield for detecting both magnetoacoustic signals and electric fields;
FIG. 2 is a schematic view of the exploded structure of FIG. 1;
FIG. 3 is a schematic diagram of a carrier platform according to the present invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic structural diagram of a permanent magnet carrying platform according to the present invention;
FIG. 6 is an exploded view of FIG. 5;
FIG. 7 is a schematic view of the overall structure of the hollow scale in connection with the left and right shield plates according to the present invention;
FIG. 8 is a schematic structural view of the hollow scale of the present invention;
FIG. 9 is a schematic view of the slider of the present invention;
FIG. 10 is a side view of FIG. 9;
FIG. 11 is a schematic view of the construction of the hollow tube means of the present invention;
fig. 12 is a top view of fig. 11.
In the drawings
1: shield case 1.1: left side wall
1.2: right side wall 1.3: front side wall
2: carrying platform 2.1: object carrying table
2.2: support column 3: permanent magnet bearing platform
3.1: permanent magnet bearing table 3.2: adjusting support column
3.3: groove 4: hollow graduated scale
4.1: scale body 4.2: edge folding
4.3: a chute 5: ultrasonic transducer supporting structure
5.1: and (5.2) a slide block: through threaded hole
5.3: hollow tube device 5.3.1: hollow pipe
5.3.2: cone 5.3.3: probe fixing plate
5.3.4: and (6) a probe: through hole
7: and (3) a lead 8: electrode for electrochemical cell
9: left shield plate 10: right shielding plate
Detailed Description
The following describes in detail the positioning apparatus and method for detecting both magnetic and electric signals with noise shielding according to the present invention with reference to the accompanying drawings.
As shown in fig. 1, 2 and 7, the positioning device for simultaneously detecting a magnetic-acoustic signal and an electric field by a noise-containing shield of the present invention comprises a shielding housing 1 with an opening at an upper end for shielding an external electromagnetic field and noise, a loading platform 2 for loading a sample to be detected and a permanent magnet loading platform 3 for providing a magnetic field to the sample to be detected, which are disposed in the shielding housing 1, wherein the loading platform 2 is disposed between the loading platform 2 and a front side wall 1.3 of the shielding housing 1, through holes 6 are symmetrically formed on a left side wall 1.1 and a right side wall 1.2 of the shielding housing 1, respectively, the through holes 6 are penetrated with electrodes 8 for current injection to the sample to be detected, which are connected to an external excitation source through wires 7, a hollow scale 4 is disposed on an upper port of the shielding housing 1 along a width direction or a length direction, the hollow scale 4 can move along the length direction or the width direction of the upper port, the ultrasonic transducer supporting structure 5 which can move along the length direction of the hollow graduated scale 4 and is used for collecting the acoustic signal of the sample to be measured is vertically arranged on the hollow graduated scale 4 corresponding to the sample to be measured, the upper port of the shielding shell 1 is also provided with a left shielding plate 9 and a right shielding plate 10 which are used for shielding the interior of the shielding shell 1 from the upper end, one side edge of the left shielding plate 9 and one side edge of the right shielding plate 10 are respectively and fixedly connected with the corresponding side edge of the hollow graduated scale 4 and move along with the hollow graduated scale 4, the widths of the left shielding plate 9 and the right shielding plate 10 are the same as the width of the shielding shell 1, the lengths of the left shielding plate 9 and the right shielding plate 10 ensure that when the graduated scale 4 slides to any position of the upper port of the shielding shell 1, the left shielding plate 9 and the right shielding plate 10 can both cover the upper port of the shielding shell 1, the external noise and the electromagnetic interference are shielded.
Shielding casing 1 constitute for the cotton inlayer of sound is inhaled in the wave acoustics environmental protection by the metal shielding skin and surface, and all be provided with the scale on shielding casing 1 on four edges of port, fretwork scale 4 moves along the scale of shielding casing 1 last port and can accurate record removal data. The left shielding plate 9 and the right shielding plate 10 are both integrally formed by a metal shielding net positioned on the upper layer and acoustic environment-friendly sound-absorbing cotton positioned on the lower layer.
The shielding shell 1 is designed to be an upper end opening, is characterized by being convenient for placing and replacing a tested sample and an experimental material, and can avoid the influence on an experimental result caused by temperature change due to the fact that the inside of the device is too closed and heat cannot be dissipated. The inner surfaces of the five fixed shielding sides of the shielding shell 1 are designed into the wavy sound-absorbing cotton, so that the noise in the surrounding environment can be efficiently absorbed, and the double-layer combined shielding surfaces can be used for double shielding of external noise and electromagnetic field interference.
The outer layer of the lead 7 connected with the external excitation source is a fluoroplastic insulating layer which has excellent electrical insulating property and is suitable for high-frequency signal transmission, and the inner layer is a bendable copper conductive wire, so that the input of the excitation source signal is ensured, and the interference of other fields and vibration generated by the periphery of the output signal except when the excitation source works on the inside of the shielding device can be avoided. In addition, the electrode 8 can be accurately placed at any position of the sample to be measured by pulling the bendable wire 7 through the through hole 6.
As shown in fig. 3 and 4, the carrier platform 2 includes a carrier platform surface 2.1 for carrying a sample to be tested, and more than 3 support columns 2.2 with top ends fixedly connected to the lower end surface of the carrier platform surface 2.1 for supporting the carrier platform surface 2.1, wherein the bottom ends of the support columns 2.2 are fixed to the inner bottom surface of the shielding shell 1.
As shown in fig. 5 and 6, the permanent magnet bearing platform 3 includes a permanent magnet bearing table top 3.1 for placing the permanent magnet, and two adjusting support columns 3.2 for respectively supporting two ends of the permanent magnet bearing table top 3.1 and adjusting the height of the permanent magnet bearing table top 3.1.
The corresponding recess 3.3 that is used for inserting permanent magnet bearing table top 3.1 tip that is formed with a plurality of respectively from top to bottom of the inboard on two regulation support column 3.2 upper portions the recess 3.3 through permanent magnet bearing table top 3.1 inserts not co-altitude recess 3.3, reaches the purpose of adjusting permanent magnet bearing table top 3.1 height to the height of the permanent magnet of placing on it is changed, makes the sample of being surveyed be in the constant magnetic field of equidimension and direction not.
As shown in fig. 7 and 8, the hollow scale 4 is made of organic glass and includes a scale main body 4.1 with scales and two folding edges 4.2 integrally connected to two ends of the scale main body 4.1 respectively and forming a 90-degree folding angle with the scale main body 4.1, the hollow scale 4 is clamped at the upper port of the shielding shell 1 through the two folding edges 4.2, and a sliding groove 4.3 for installing the ultrasonic transducer supporting structure 5 is formed on the scale main body 4.1 along the length direction.
As shown in fig. 7, 9, 10, 11 and 12, the ultrasonic transducer supporting structure 5 includes: the card is in slider 5.1 on fretwork scale 4 and can follow the removal of 4 length direction of fretwork scale, slider 5.1 comprises organic glass, can block on fretwork scale 4 and slide along the scale on it, and the position data that the measuring position data looks vertically when accurate record slides with fretwork scale 4. A through threaded hole 5.2 is formed in the center of the sliding block 5.1, a hollow tube device 5.3 used for loading an ultrasonic transducer is connected to the through threaded hole 5.2 in a penetrating mode, and the lower portion of the hollow tube device 5.3 penetrates through a sliding groove 4.3 of the hollow scale 4 to enter the shielding shell 1 and correspond to a sample to be measured.
As shown in fig. 11, the hollow tube means 5.3 comprises: the ultrasonic testing device comprises a hollow tube 5.3.1 used for loading an ultrasonic transducer and a cone 5.3.2 integrally formed at the bottom end of the hollow tube 5.3.1, wherein a through hole used for collecting an acoustic signal of a corresponding position of a tested sample is formed at the tip of the cone 5.3.2, the hollow tube 5.3.1 and the cone 5.3.2 are made of organic glass, and an external thread used for being in threaded connection with a through threaded hole 5.2 in the slider 5.1 and capable of adjusting the distance of the hollow tube 5.3.1 relative to the tested sample is formed at the upper part of the outer side of the hollow tube 5.3.1, namely the height of the hollow tube can be adjusted up and down through rotating at the through hole, so that data collection of experimental materials with different volumes at the same position and different distances can be realized.
As shown in fig. 11 and 12, the outer side of the joint between the hollow tube 5.3.1 and the cone 5.3.2 is further fixedly connected with a probe fixing plate 5.3.3 made of organic glass, 2 to 8 detachable probes 5.3.4 for detecting the electric field distribution of the sample to be detected are vertically arranged on the probe fixing plate 5.3.3, and 2 to 8 probe holes for penetrating through the probes 5.3.4 corresponding to the probes 5.3.4 on the probe fixing plate 5.3.3 are formed on the slider 5.1. The probe 5.3.4 only has the conductive characteristic at the lower tip point, the outer sides of other parts are all provided with ultrathin insulating layers, and the ultrafine probe can penetrate through the surface of the sample to be detected to measure the distribution of the internal electric field without damaging the sample to be detected like an acupuncture needle.
The invention relates to a use method of a positioning device which comprises a noise shield and can simultaneously detect a magnetic sound signal and an electric field, when a sound field generated by electromagnetic coupling is measured in an experiment, a sample to be measured is placed on an object carrying platform 2, a permanent magnet is placed on a permanent magnet bearing platform 3, an electrode 8 which is connected with an external excitation source through a lead 7 penetrates through a through hole 6 to be connected with the sample to be measured so as to lead in current, pulse signals with set frequency, strength and waveform are generated, then a hollow graduated scale 4 of which two sides are connected with a left shielding plate 9 and a right shielding plate 10 is clamped on an upper port of a shielding shell 1 through folded edges 4.2 at two ends of the hollow graduated scale 4 and the relative position of the hollow graduated scale 4 and the measured sample is adjusted, a hollow tube device 5.3 is clamped on the hollow graduated scale 4 through a sliding block 5.1, and a hollow tube 5.3.1 loaded with an ultrasonic transducer is adjusted to be connected with an upper port of the hollow tube 5.3.1 in the hollow tube device 5.3 as an ultrasonic transducer through an elastic hose serving as an adapter so as to connect the lower adapter with the ultrasonic transducer The sound wave transmitted from the port is detected by the ultrasonic transducer, and the measured electric signal of the measured sample is led out through a lead connected with the upper end of the probe 5.3.4.
Claims (6)
1. A positioning device capable of shielding noise and detecting magnetoacoustic signals and electric fields simultaneously comprises a shielding shell (1) with an opening at the upper end and used for shielding an external electromagnetic field and noise, and is characterized in that an object carrying platform (2) used for carrying a sample to be detected and a permanent magnet carrying platform (3) used for providing a magnetic field for the sample to be detected and located between the object carrying platform (2) and a front side wall (1.3) of the shielding shell (1) are arranged in the shielding shell (1), through holes (6) are symmetrically formed in a left side wall (1.1) and a right side wall (1.3) of the shielding shell (1) respectively, the through holes (6) penetrate through electrodes (8) which are connected with an external excitation source through leads (7) and used for injecting current into the sample to be detected, and a hollowed scale (4) is arranged on an upper port of the shielding shell (1) along the width direction, fretwork scale (4) can be followed the length direction who goes up the port removes, it is used for gathering ultrasonic transducer bearing structure (5) of being surveyed sample acoustic signal that to be provided with perpendicularly that can follow fretwork scale (4) length direction and remove to correspond on fretwork scale (4) by the survey sample, the last port of shielding casing (1) still is provided with and is used for carrying out left shield plate (9) and right shield plate (10) that shield to shielding casing (1) inside from the upper end, a side of left side shield plate (9) and right shield plate (10) is fixed connection respectively on the side of fretwork scale (4) that correspond, and follows fretwork scale (4) remove together, the width of left side shield plate (9) and right shield plate (10) with the width of shielding casing (1) is the same, the length of left side shield plate (9) and right shield plate (10) will guarantee fretwork scale (4) slide the shielding casing (1) of port on the fretwork scale (4) When the shielding shell is at any position, the left shielding plate (9) and the right shielding plate (10) can cover the upper port of the shielding shell (1) to shield external noise and electromagnetic interference;
the shielding shell (1) is composed of a metal shielding outer layer and an inner layer of which the surface is wave-shaped acoustic environment-friendly sound-absorbing cotton, scales are arranged on four edges of an upper port of the shielding shell (1), and the left shielding plate (9) and the right shielding plate (10) are integrally composed of a metal shielding net positioned on the upper layer and acoustic environment-friendly sound-absorbing cotton positioned on the lower layer;
the ultrasound transducer support structure (5) comprises: the sample testing device comprises a hollow graduated scale (4), a sliding block (5.1) clamped on the hollow graduated scale (4) and capable of moving along the length direction of the hollow graduated scale (4), a through threaded hole (5.2) is formed in the center of the sliding block (5.1), a hollow tube device (5.3) used for loading an ultrasonic transducer is connected to the through threaded hole (5.2) in a penetrating mode, and the lower portion of the hollow tube device (5.3) penetrates through a sliding groove (4.3) of the hollow graduated scale (4) and enters a shielding shell (1) and corresponds to a sample to be tested; the hollow pipe device (5.3) comprises: the device comprises a hollow tube (5.3.1) used for loading an ultrasonic transducer and a cone (5.3.2) integrally formed at the bottom end of the hollow tube (5.3.1), wherein a through hole used for collecting an acoustic signal of a corresponding position of a measured sample is formed at the cone tip part of the cone (5.3.2), and an external thread used for being in threaded connection with a through threaded hole (5.2) on the sliding block (5.1) and adjusting the distance of the hollow tube (5.3.1) relative to the measured sample is formed at the upper part of the outer side of the hollow tube (5.3.1); the outer side of the joint of the hollow tube (5.3.1) and the cone (5.3.2) is fixedly connected with a probe fixing plate (5.3.3), 2-8 detachable probes (5.3.4) used for detecting the electric field distribution of the detected sample are vertically arranged on the probe fixing plate (5.3.3), only the lower tip points of the probes (5.3.4) have the conductive characteristic, ultrathin insulating layers are arranged on the outer sides of other parts, and 2-8 probe holes which are used for penetrating through the probes (5.3.4) and correspond to the probes (5.3.4) on the probe fixing plate (5.3.3) are formed on the sliding block (5.1).
2. The positioning device for detecting magnetoacoustic signals and electric fields simultaneously with noise shielding according to claim 1, wherein the carrier platform (2) comprises a carrier platform surface (2.1) for carrying a sample to be tested and more than 3 supporting columns (2.2) with top ends fixedly connected to the lower end surface of the carrier platform surface (2.1) for supporting the carrier platform surface (2.1), and bottom ends of the supporting columns (2.2) are fixed on the inner bottom surface of the shielding shell (1).
3. The positioning device with noise shielding and capability of detecting magnetoacoustic signals and electric fields according to claim 1, wherein the permanent magnet bearing platform (3) comprises a permanent magnet bearing table top (3.1) for placing a permanent magnet, and two adjusting support columns (3.2) for respectively supporting two ends of the permanent magnet bearing table top (3.1) and adjusting the height of the permanent magnet bearing table top (3.1).
4. The positioning device with the noise-containing shield and the capability of detecting magnetoacoustic signals and electric fields as claimed in claim 3, wherein a plurality of grooves (3.3) for inserting the ends of the permanent magnet bearing table top (3.1) are formed correspondingly from top to bottom on the inner sides of the upper parts of the two adjusting support columns (3.2), and the purpose of adjusting the height of the permanent magnet bearing table top (3.1) is achieved by inserting the permanent magnet bearing table top (3.1) into the grooves (3.3) with different heights.
5. The positioning device capable of simultaneously detecting the magnetic-acoustic signal and the electric field by the noise-containing shield according to claim 1, wherein the hollow scale (4) comprises a scale body (4.1) with scales and two folding edges (4.2) which are respectively and integrally connected to two ends of the scale body (4.1) and form a 90-degree folding angle with the scale body (4.1), the hollow scale (4) is clamped at the upper port of the shield shell (1) through the two folding edges (4.2), and a sliding groove (4.3) for installing the ultrasonic transducer supporting structure (5) is formed in the scale body (4.1) along the length direction.
6. A use method of the positioning device which contains noise shielding and can detect the magnetic sound signal and the electric field simultaneously as claimed in claim 1 is characterized in that when the sound field generated by electromagnetic coupling is measured in experiment, the sample to be measured is placed on the object carrying platform (2), the permanent magnet is placed on the permanent magnet carrying platform (3), the electrode (8) which is connected with the external excitation source through the lead (7) is connected with the sample to be measured through the through hole (6) to lead in current and generate the pulse signal with set frequency, intensity and waveform, then the hollow scale (4) with the left shielding plate (9) and the right shielding plate (10) connected at the two sides is clamped on the upper port of the shielding shell (1) through the folded edges (4.2) at the two ends of the hollow scale (4) and the relative position with the sample to be measured is adjusted, the hollow tube device (5.3) is clamped on the hollow scale (4) through the slide block (5.1), and the distance between the hollow tube (5.3.1) loaded with the ultrasonic transducer and the sample to be measured is adjusted, the upper port of the hollow tube (5.3.1) in the hollow tube device (5.3) is connected with the ultrasonic transducer by taking the elastic hose as an adapter so that the sound wave transmitted from the lower port of the hollow tube is detected by the ultrasonic transducer, and the electric signal of the sample to be measured is led out by a lead connected with the upper end of the probe (5.3.4).
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09289763A (en) * | 1996-04-19 | 1997-11-04 | Minebea Co Ltd | Motor structure |
| WO2000019243A1 (en) * | 1998-09-30 | 2000-04-06 | The Government Of The United States Of America As Represented By The Secretary, Department Of Health And Human Services | Ultrasound probes implementing waveguide shielding and active compensation of noise |
| CN101247758A (en) * | 2005-05-11 | 2008-08-20 | 明尼苏达大学评议会 | Methods and apparatus for imaging with magnetic induction |
| CN102440806A (en) * | 2010-09-13 | 2012-05-09 | 通用电气公司 | Ultrasound method and probe for electromagnetic noise cancellation |
| CN102805621A (en) * | 2012-07-26 | 2012-12-05 | 中国科学院电工研究所 | Magnetic, acoustic and electric imaging system and imaging method |
| CN103217481A (en) * | 2013-04-02 | 2013-07-24 | 厦门大学 | Magnetoacoustic tomography-with-magnetic-induction probe applying magnetostriction |
| CN104483384A (en) * | 2014-12-14 | 2015-04-01 | 中国科学院电工研究所 | Magnetic-acoustic multi-field coupling imaging experiment device |
| CN105092701A (en) * | 2015-07-24 | 2015-11-25 | 广州彩磁信息技术有限公司 | Electromagnetic ultrasonic detection system based on electromechanical hybrid frequency-modulation energy-gathered irradiation and method |
| CN106037638A (en) * | 2016-05-17 | 2016-10-26 | 中国医学科学院生物医学工程研究所 | Conductivity magnetoacoustic tomography device and method without influences of thermoacoustic effect |
| CN107174202A (en) * | 2017-05-05 | 2017-09-19 | 深圳大学 | A kind of magnetosonic imaging method and system based on active probe |
| CN107260168A (en) * | 2017-01-26 | 2017-10-20 | 中国医学科学院生物医学工程研究所 | The EEG measuring device and monitoring method with auditory localization are coupled with reference to magnetosonic |
| CN110045020A (en) * | 2019-05-14 | 2019-07-23 | 山东省科学院激光研究所 | A kind of electromagnet ultrasonic changer and test macro |
| CN209745873U (en) * | 2018-12-28 | 2019-12-06 | 中国特种设备检测研究院 | Electromagnetic-acoustic composite nondestructive testing device and system |
| CN111175371A (en) * | 2020-01-10 | 2020-05-19 | 中国医学科学院生物医学工程研究所 | Two-dimensional focusing scanning magnetic acoustic imaging device |
| CN111887846A (en) * | 2020-08-19 | 2020-11-06 | 中国科学院电工研究所 | Coupling imaging method and device based on field regulation and control |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7375526B2 (en) * | 2006-10-20 | 2008-05-20 | Edelstein William A | Active-passive electromagnetic shielding to reduce MRI acoustic noise |
| CN105004797B (en) * | 2015-07-24 | 2019-02-12 | 广州丰谱信息技术有限公司 | Object detecting method and device based on constant electromagnetic source alternation induction field |
| CN107543975B (en) * | 2017-07-06 | 2021-04-23 | 北京交通大学 | Non-full-shielding type whole-motor-car electromagnetic radiation emission testing device |
| US10888898B2 (en) * | 2018-03-12 | 2021-01-12 | Endra Life Sciences Inc. | Shielded ultrasound transducer and imaging system employing the same |
| CN209979555U (en) * | 2019-05-14 | 2020-01-21 | 山东省科学院激光研究所 | Electromagnetic ultrasonic transducer and test system |
-
2020
- 2020-12-22 CN CN202011530920.6A patent/CN112683992B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09289763A (en) * | 1996-04-19 | 1997-11-04 | Minebea Co Ltd | Motor structure |
| WO2000019243A1 (en) * | 1998-09-30 | 2000-04-06 | The Government Of The United States Of America As Represented By The Secretary, Department Of Health And Human Services | Ultrasound probes implementing waveguide shielding and active compensation of noise |
| CN101247758A (en) * | 2005-05-11 | 2008-08-20 | 明尼苏达大学评议会 | Methods and apparatus for imaging with magnetic induction |
| CN102440806A (en) * | 2010-09-13 | 2012-05-09 | 通用电气公司 | Ultrasound method and probe for electromagnetic noise cancellation |
| CN102805621A (en) * | 2012-07-26 | 2012-12-05 | 中国科学院电工研究所 | Magnetic, acoustic and electric imaging system and imaging method |
| CN103217481A (en) * | 2013-04-02 | 2013-07-24 | 厦门大学 | Magnetoacoustic tomography-with-magnetic-induction probe applying magnetostriction |
| CN104483384A (en) * | 2014-12-14 | 2015-04-01 | 中国科学院电工研究所 | Magnetic-acoustic multi-field coupling imaging experiment device |
| CN105092701A (en) * | 2015-07-24 | 2015-11-25 | 广州彩磁信息技术有限公司 | Electromagnetic ultrasonic detection system based on electromechanical hybrid frequency-modulation energy-gathered irradiation and method |
| CN106037638A (en) * | 2016-05-17 | 2016-10-26 | 中国医学科学院生物医学工程研究所 | Conductivity magnetoacoustic tomography device and method without influences of thermoacoustic effect |
| CN107260168A (en) * | 2017-01-26 | 2017-10-20 | 中国医学科学院生物医学工程研究所 | The EEG measuring device and monitoring method with auditory localization are coupled with reference to magnetosonic |
| CN107174202A (en) * | 2017-05-05 | 2017-09-19 | 深圳大学 | A kind of magnetosonic imaging method and system based on active probe |
| CN209745873U (en) * | 2018-12-28 | 2019-12-06 | 中国特种设备检测研究院 | Electromagnetic-acoustic composite nondestructive testing device and system |
| CN110045020A (en) * | 2019-05-14 | 2019-07-23 | 山东省科学院激光研究所 | A kind of electromagnet ultrasonic changer and test macro |
| CN111175371A (en) * | 2020-01-10 | 2020-05-19 | 中国医学科学院生物医学工程研究所 | Two-dimensional focusing scanning magnetic acoustic imaging device |
| CN111887846A (en) * | 2020-08-19 | 2020-11-06 | 中国科学院电工研究所 | Coupling imaging method and device based on field regulation and control |
Non-Patent Citations (3)
| Title |
|---|
| 基于磁声电耦合的电导率测量实验系统;郭亮等;《实验室研究与探索》;20150615;全文 * |
| 基于磁声耦合效应的聚焦电刺激方法的初探;李慧雨等;《生物医学工程研究》;20151215;全文 * |
| 磁声电导率成像检测系统设计及应用;戴明;《中国博士学位论文全文数据库 工程科技Ⅱ辑》;20200915;全文 * |
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