CN103439375A - Integrated type capacitance-ultrasound tomography sensor - Google Patents
Integrated type capacitance-ultrasound tomography sensor Download PDFInfo
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- CN103439375A CN103439375A CN2013103733052A CN201310373305A CN103439375A CN 103439375 A CN103439375 A CN 103439375A CN 2013103733052 A CN2013103733052 A CN 2013103733052A CN 201310373305 A CN201310373305 A CN 201310373305A CN 103439375 A CN103439375 A CN 103439375A
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Abstract
The invention discloses an integrated type capacitance-ultrasound tomography sensor in the technical field of sensor design. The sensor comprises a capacitance tomography sensor and an ultrasound tomography sensor, wherein the capacitance tomography sensor comprises one or more measuring electrode modules, and the ultrasound tomography sensor consists of an ultrasonic transducer array. The sensor surrounds a space to be measured, the measuring part of the capacitance tomography sensor is used for measuring the distribution of dielectric coefficients in the space, and meanwhile, the measuring part of the ultrasound tomography sensor is used for measuring the distribution of ultrasound propagation velocity of a section to be measured. The sensor can provide measured capacitance signals and ultrasound signals at the same time, and the flame distribution image of the space to be measured is reconstructed by virtue of the capacitance signals and the ultrasound signals through a unified image reconstruction algorithm.
Description
Technical field
The invention belongs to the sensor design field, relate in particular to a kind of integrated capacitive-ultrasound tomography sensor.
Background technology
The distribution of combustion process Flame is usually closely related with the state of burning.Flame degree of filling for example, kindling point, the length of flame and subtended angle etc., be the important parameter of burning.In addition, the flicker frequency of burning Flame, also often relevant with the stability of burning.Therefore, for the space distribution of flame, and the detection of flicker frequency, be the important ways and meanses such as fired state diagnosis and burner research and development.
Electrical capacitance tomography is the parameter detecting technology of new generation of getting up along with the progress of computer technology and detection technique, and its English name is Electric Capacitance Tomography, is called for short ECT.Be similar to known medicine CT, ECT with senser element with electrod-array the measured section from the outer most surrounding flow channel, by scanning all electrode pairs of mode sequentially determining between capacitance.The variation of species distribution will cause the respective change of surveyed capacitance in measured section, and ECT is according to surveyed capacitance, and the process by image reconstruction reconstructs the species distribution in measured section.With medicine CT, compare, the leading decades of times of the speed of capacitance chromatography imaging even, more than hundred times, can be realized the real-time measurement of transient, and safety, economy, flexibly; With optical measurement, compare, capacitance chromatography imaging is not subject to the impact of equipment light transmission.
The measuring object of ECT can be diversified, comprises gas-solid phase, gas-liquid two-phase flow, solid-liquid two-phase flow, there is the liquid-liquid two-phase of different dielectric coefficient, and the polyphasic flow such as solid-liquid-gas three-phase flow.A common application is the ducted phase distribution measuring of different liquids, the oil in pipeline-water two-phase flow in petroleum production engineering for example, or cross-sectional distribution and even the flow measurement of oil in oil gas water three phase flow.Because the ECT potential electrode can be installed around the periphery of measurement space, so ECT sensor itself can, to mobile the impacting in pipeline, be not a kind of measuring technique of non-intervention type; Simultaneously, ECT can also obtain the complete species distribution figure on measured cross section.
Ultrasonic tr-ansducer or ultrasonic transducer, its English name is Ultrasonic Transducer, use the excess revolutions parallel operation as sensor, and the marked difference of ultrasonic propagation velocity in different medium and the relation between acoustic wave propagation velocity and temperature in the integrated use Principles of Acoustics, can the pair cross-section species distribution and temperature field distribute and carry out image reconstruction, this ultrasonic imaging technique is another kind of emerging non-intervention type imaging technique.Adopt the cross section polyphasic flow that ultrasonic method can measuring channel inside to distribute, also can measure air-flow or liquid and flow the even temperature field of polyphasic flow simultaneously, solved the interference of thermopair stream field, equally the pipeline flow field is not impacted, improved the poor problem of temperature measure real-time simultaneously, and solved the one-sidedness problem that point is surveyed, can obtain the Temperature Distribution in this cross section comprehensively, but ultrasonic method is also so accurate not as capacitance chromatography imaging for the measurement imaging effect of polyphasic flow, but, combine the ECT-UST sensor of ultrasonic method and capacitance chromatography imaging, advantage in conjunction with two kinds of methods, and utilize unified image reconstruction algorithm, can complete the flame combustion situation of closed channel or combustion space and the comprehensive detection of cross section species distribution and Temperature Distribution.
Capacitance chromatography imaging and ultrasound tomography, two kinds of measuring methods that emphasize particularly on different fields, but, these two kinds of methods have again a lot of similar places, and the two is all non-invasive measurement mode, for the internal motion of measurement space, all impact hardly, simultaneously, these two kinds of detection modes can be used unified image reconstruction algorithm again, and therefore, it is a kind of ideal detection scheme that these two comprehensive combination is used.
Summary of the invention
For in background technology, mention in metal piping system, can't realize in the structure that does not affect equipment and mechanical property, problem with the measurement not disturbing the mobile mode of fluid to carry out on pipeline section to distribute mutually, the present invention proposes a kind of integrated capacitive-ultrasound tomography sensor.
A kind of integrated capacitive-ultrasound tomography sensor, is characterized in that, described sensor comprises capacitance tomography sensor and ultrasound tomography sensor; The plane at the plane at described capacitance tomography sensor place and ultrasound tomography sensor place is parallel to each other; The ultrasound tomography sensor is parallel to capacitance tomography sensor, separated by a distance with capacitance tomography sensor, around burning gallery, arrange, the capacitance tomography sensor array is close to the outer wall of burning gallery, does not affect all states in passage fully;
Described capacitance tomography sensor comprises one or more potential electrode modules; Described potential electrode module adopts the structure of three layers of printed circuit board, comprises inner panel, electrode array strake and outside plate; Described inner panel forms the inwall of measuring passage; The substrate that the centre of described electrode array strake is non-conductive material; Described substrate is positive towards the one side of measuring passage, the guarded electrode between layout potential electrode, potential electrode lead-in wire, potential electrode and the end profile shielding electrode at potential electrode two ends; The another side of described substrate is the back side, the arranging shielding electrode; Described outside plate forms the capacitance tomography sensor outside;
Wherein, the guarded electrode of the end profile shielding electrode at the guarded electrode between described potential electrode, potential electrode two ends and substrate back is connected by the wire through substrate;
Described ultrasound tomography sensor is comprised of ultrasound transducer array; Described ultrasound transducer array comprises N ultrasonic transducer, and one of them ultrasonic transducer is as emitter, and remaining ultrasonic transducer is as receiving trap.
During described a plurality of potential electrode module combination, formed shape comprises close-shaped and non-closed proterties; Described closed proterties comprises circle, ellipse and rectangle; Described non-close-shaped flute profile and the semicircle of comprising.
During described a plurality of potential electrode module combination, at guarded electrode between installation module between adjacent two potential electrode modules, and the intermodule guarded electrode is connected by the common wire.
A described N ultrasonic transducer is evenly arranged with circular pattern in same plane.
The invention has the beneficial effects as follows:
(1) thickness of capacitance tomography sensor is minimum, can be in the situation that do not change original burning gallery, and even the impact of flow is dropped to minimum negligible degree, thereby form and a kind ofly can not change original flow channel, and mobile tomography sensor in interfering channel not, can solve thus the problem that conventional sensor need to be replaced the original pipeline of part or space wall surface material.
(2) due to inner panel as thin as a wafer on capacitance tomography sensor potential electrode surface, the impact of the dielectric coefficient of inner panel significantly reduces, and contributes to improve the measurement sensitivity of sensor, reduces error, thereby obtains good measurement performance.
(3) the ultrasound tomography sensor can be close on the outer wall of detected space, utilize the ultrasound wave penetration power extremely strong to solid, ultrasound wave can very easily see through wall and enter detected space, hyperacoustic this specific character, can form equally a kind of original burning gallery that do not change, and mobile tomography sensor in interfering channel not, need not replace equally the wall in original pipeline or space.And the ultrasound examination precision is high, contribute to obtain good measurement result.
(4) the capacitance tomography sensor integral thickness is minimum and have good pliability, the ultrasound tomography sensor array is only with being arranged in outside wall, integrated capacitive-ultrasound tomography sensor can have various sizes and can carry out to a certain extent the adjustment of shape like this, thereby there is the adaptability very flexibly to multiple burning gallery structure, make sensor can be arranged in neatly any position of burning gallery, except adapting to the wall of rectangular duct, also can adapt to preferably circular channel wall.
(5) capacitance tomography sensor is combined by discrete module, and modules can design respectively according to the size of existing burning gallery (for example be designed to different width and finally form the square-section of different size), finally all modules is combined in passage.The ultrasound tomography sensor array, only need be parallel to as required the outside wall surface that capacitance tomography sensor is arranged in burning gallery and get final product.
The accompanying drawing explanation
Fig. 1 is the structural drawing of the electrode array strake of capacitance tomography sensor provided by the invention; Wherein, (a) be the one side towards measured passage of electrode array strake; (b) the electrod-array backboard is to the one side of measured passage;
Fig. 2 is the arrangement enlarged drawing of a sensor in ultrasound tomography sensor array provided by the invention;
Fig. 3 is the detailed structure view of the integrated capacitive by five module combinations provided by the invention-ultrasound tomography sensor; Wherein, (a) be the top view of sensor; (b) be left side view;
Fig. 4 is layout and the data acquisition instrument connected mode of integrated capacitive-ultrasound tomography sensor in flow channel;
Wherein, 1-electrode array strake; 2-potential electrode lead-in wire; The 3-potential electrode; Guarded electrode between the 4-potential electrode; The end profile shielding electrode at 5-potential electrode two ends; 6-substrate back guarded electrode; 7-detected space wall; The 8-ultrasonic transducer; 9-ultrasonic transducer lead-in wire; The 10-ground wire; The capacitance tomography sensor of the tested channel interior of 11-; 12-intermodule guarded electrode; The capacitance tomography sensor of the tested passage of 13-outside; 14-combustion measurement space; The 15-data acquisition instrument.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment is elaborated.Should be emphasized that following explanation is only exemplary, rather than in order to limit the scope of the invention and to apply.
Fig. 1 is the structural drawing of the electrode array strake of capacitance tomography sensor provided by the invention; Wherein, (a) be the one side towards measured passage of electrode array strake; (b) the electrod-array backboard is to the one side of measured passage.Wherein, the substrate that the centre of electrode array strake 1 is non-conductive material; Described substrate is positive towards the one side of measuring passage, the guarded electrode 4 between layout potential electrode 3, potential electrode lead-in wire 2, potential electrode and the end profile shielding electrode 5 at potential electrode two ends; The another side of described substrate is substrate back guarded electrode 6.The guarded electrode 6 of the guarded electrode 4 between potential electrode, the end profile shielding electrode 5 at potential electrode two ends and substrate back is connected by the wire through substrate; Described outside plate forms the capacitance tomography sensor outside.
Fig. 2 is the arrangement enlarged drawing of a sensor in ultrasound tomography sensor array provided by the invention.Wherein, ultrasonic transducer 8 is installed on detected space wall 7, and goes between and 9 connect the signal generators by ultrasonic transducer; Also by ground wire 10, carry out ground connection simultaneously.Each sensor in the UST sensor array is this kind of connected mode.
Fig. 3 is the detailed structure view of the integrated capacitive by five module combinations provided by the invention-ultrasound tomography sensor; Wherein, (a) be the top view of sensor; Show the side, test section, comprise respectively the capacitance tomography sensor 13 of capacitance tomography sensor 11, intermodule guarded electrode 12 and the tested passage outside of tested channel interior; In measurement passage outside, ultrasonic transducer 8 also is installed; (b) be left side view, show the left side module of sensor, and upper and lower module.By left view, can see and be positioned at sensor on the 14 bottom xsects of combustion measurement space and arrange the capacitance tomography sensor 13 of the capacitance tomography sensor 11 that is included as tested channel interior, potential electrode lead-in wire 2, tested passage outside.The capacitance tomography sensor 11 of tested channel interior is arranged in above plate pedestal, form with array is paved with whole pedestal, center through hole is passage of flame, and potential electrode is faced inside, combustion zone, and is connected by inner capacitance tomography sensor 11, potential electrode lead-in wire 2; The capacitance tomography sensor 13 of tested passage outside, around passage of flame outer wall one week, in pipe and the layout of the outer capacitance tomography sensor of pipe basic identical; The electrode array strake is towards the plate face of passage of flame, be called for short medial surface, arrange potential electrode on medial surface, and the guarded electrode between potential electrode, the end profile shielding electrode, and potential electrode lead-in wire 2, be arranged on lateral surface, slightly distinguishing be exactly the lead-in wire of inner capacitance tomography sensor 11 be to penetrate tube wall to connect out.The ultrasound tomography sensor, passage of flame outer wall one week, and parallel with the capacitance tomography sensor cross section with the arranged in form of array, the two spacing is without explicitly calling for, and the course of work of the two becomes the phase mutual interference not.
Fig. 4 is layout and the data acquisition instrument connected mode of integrated capacitive-ultrasound tomography sensor in flow channel.
The concrete measuring process of inside and outside this sensor of installation of burning gallery is as follows:
(1) capacitance tomography sensor is divided into two parts, and the capacitance tomography sensor 11 of tested channel interior is arranged on substrate, sensor is close to the substrate inwall and installs, and the capacitance tomography sensor 13 of tested passage outside is looped around the passage periphery.If necessary, can also be by substrate inwall sensor installation again after reaming a little.After installation of sensors, inner body can be very level and smooth like this, guarantees not affect original state of burning gallery inside.
(2) the ultrasound tomography sensor is parallel to capacitance tomography sensor, separated by a distance with capacitance tomography sensor, around burning gallery, arrange, the capacitance tomography sensor array is close to the outer wall of burning gallery, does not affect all states in passage fully.
(3) at first carry out the demarcation of integrated capacitive-ultrasound tomography sensor measurement before the measurement.Calibration process is consistent with traditional scaling method, measures each capacitance of all electrode pairs while at first in sensor, there is no flame combustion, and the acoustic velocity value of the every a pair of transmitting terminal of ultrasound transducer array and receiving end is demarcated as barnyard simultaneously; Then measure capacitance under each different temperatures and acoustic wave propagation velocity during (as in constant temperature oven) rising temperature as demarcating in isoperibol in the whole field.Then record all measurement electric capacity and the velocity of sound and when measuring for image reconstruction.
(5) start the normal operation of equipment and with data acquisition instrument 15 collection signals;
(6) rebuild the temperature distribution image in burning gallery according to measuring-signal.
The above; be only the present invention's embodiment preferably, but protection scope of the present invention is not limited to this, anyly is familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (4)
1. integrated capacitive-ultrasound tomography sensor, is characterized in that, described sensor comprises capacitance tomography sensor and ultrasound tomography sensor; The plane at the plane at described capacitance tomography sensor place and ultrasound tomography sensor place is parallel to each other; The ultrasound tomography sensor is parallel to capacitance tomography sensor, separated by a distance with capacitance tomography sensor, around burning gallery, arrange, the capacitance tomography sensor array is close to the outer wall of burning gallery, does not affect all states in passage fully;
Described capacitance tomography sensor comprises one or more potential electrode modules; Described potential electrode module adopts the structure of three layers of printed circuit board, comprises inner panel, electrode array strake and outside plate; Described inner panel forms the inwall of measuring passage; The substrate that the centre of described electrode array strake is non-conductive material; Described substrate is positive towards the one side of measuring passage, the guarded electrode between layout potential electrode, potential electrode lead-in wire, potential electrode and the end profile shielding electrode at potential electrode two ends; The another side of described substrate is the back side, the arranging shielding electrode; Described outside plate forms the capacitance tomography sensor outside;
Wherein, the guarded electrode of the end profile shielding electrode at the guarded electrode between described potential electrode, potential electrode two ends and substrate back is connected by the wire through substrate;
Described ultrasound tomography sensor is comprised of ultrasound transducer array; Described ultrasound transducer array comprises N ultrasonic transducer, and one of them ultrasonic transducer is as emitter, and remaining ultrasonic transducer is as receiving trap.
2. sensor according to claim 1, is characterized in that, during described a plurality of potential electrode module combination, formed shape comprises close-shaped and non-closed proterties; Described closed proterties comprises circle, ellipse and rectangle; Described non-close-shaped flute profile and the semicircle of comprising.
3. sensor according to claim 1, is characterized in that, during described a plurality of potential electrode modules combination, at guarded electrode between installation module between adjacent two potential electrode modules, and the intermodule guarded electrode connected by the common wire.
4. sensor according to claim 1, is characterized in that, a described N ultrasonic transducer is evenly arranged with circular pattern in same plane.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106814114A (en) * | 2017-01-11 | 2017-06-09 | 燕山大学 | A kind of coplanar capacitor array imaging sensing empty full establishing method |
| CN107063944A (en) * | 2017-04-26 | 2017-08-18 | 华北电力大学 | Merge the burner flame measurement apparatus and method of electrostatic and acoustic sensor array |
| CN107091858A (en) * | 2017-03-27 | 2017-08-25 | 北京航空航天大学 | A kind of method mapped by Current Voltage map construction voltage x current |
| CN107478716A (en) * | 2017-07-06 | 2017-12-15 | 中国船舶重工集团公司第七〇九研究所 | The detection means and detection method of gas-liquid two-phase distribution field in a kind of boiler |
| CN108254418A (en) * | 2017-12-25 | 2018-07-06 | 华北电力大学 | The three-dimensional variational method of capacitance and ultrasound tomography multi-modal fusion |
| CN108445052A (en) * | 2018-06-15 | 2018-08-24 | 华北电力大学（保定） | Capacitance chromatography imaging static experiment platform and its application method |
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| WO2019214471A1 (en) * | 2018-05-08 | 2019-11-14 | 中国科学院大连化学物理研究所 | Built-in electrode electrical capacitance tomography sensor |
| CN110865287A (en) * | 2019-11-27 | 2020-03-06 | 国网重庆市电力公司电力科学研究院 | GIS partial discharge positioning device |
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| DE102020100980A1 (en) | 2020-01-16 | 2021-07-22 | Endress+Hauser SE+Co. KG | Method for determining and / or monitoring at least one property of a medium |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005019779A1 (en) * | 2003-08-22 | 2005-03-03 | Instituto Mexicano Del Petróleo | Method of viewing multiphase flows using electrical capacitance tomography |
| CN101025404A (en) * | 2007-03-05 | 2007-08-29 | 天津大学 | ECT/ERT double mode-state imaging system cross-type composite array sensor |
| CN101034075A (en) * | 2007-04-18 | 2007-09-12 | 天津大学 | Square double mode self-calibration sensor and image rebuilding method based on sensor thereof |
| CN102156225A (en) * | 2011-03-18 | 2011-08-17 | 华北电力大学 | Capacitance tomography sensor with powder dielectric coefficient variation measurement electrode |
| CN102305828A (en) * | 2011-05-13 | 2012-01-04 | 中北大学 | Encircling-array-based ultrasound computed tomography detection system and method |
| CN202330346U (en) * | 2011-11-16 | 2012-07-11 | 公安部第三研究所 | Improved capacitance sensor for security detection on liquid prohibited products |
-
2013
- 2013-08-23 CN CN201310373305.2A patent/CN103439375B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005019779A1 (en) * | 2003-08-22 | 2005-03-03 | Instituto Mexicano Del Petróleo | Method of viewing multiphase flows using electrical capacitance tomography |
| CN101025404A (en) * | 2007-03-05 | 2007-08-29 | 天津大学 | ECT/ERT double mode-state imaging system cross-type composite array sensor |
| CN101034075A (en) * | 2007-04-18 | 2007-09-12 | 天津大学 | Square double mode self-calibration sensor and image rebuilding method based on sensor thereof |
| CN102156225A (en) * | 2011-03-18 | 2011-08-17 | 华北电力大学 | Capacitance tomography sensor with powder dielectric coefficient variation measurement electrode |
| CN102305828A (en) * | 2011-05-13 | 2012-01-04 | 中北大学 | Encircling-array-based ultrasound computed tomography detection system and method |
| CN202330346U (en) * | 2011-11-16 | 2012-07-11 | 公安部第三研究所 | Improved capacitance sensor for security detection on liquid prohibited products |
Non-Patent Citations (1)
| Title |
|---|
| 马平等: "过程层析成像技术的发展及应用", 《化工自动化及仪表》, vol. 36, no. 01, 10 February 2009 (2009-02-10) * |
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| CN108254418A (en) * | 2017-12-25 | 2018-07-06 | 华北电力大学 | The three-dimensional variational method of capacitance and ultrasound tomography multi-modal fusion |
| WO2019214471A1 (en) * | 2018-05-08 | 2019-11-14 | 中国科学院大连化学物理研究所 | Built-in electrode electrical capacitance tomography sensor |
| US11162915B2 (en) | 2018-05-08 | 2021-11-02 | Dalian Institute Of Chemical Physics, Chinese Academy Of Sciences | Built-in electrode electrical capacitance tomography sensor |
| CN108445052A (en) * | 2018-06-15 | 2018-08-24 | 华北电力大学（保定） | Capacitance chromatography imaging static experiment platform and its application method |
| CN109738493A (en) * | 2019-03-06 | 2019-05-10 | 深圳市联恒星科技有限公司 | A kind of production method of capacitance tomography system and its capacitance sensor |
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