EP3058318A1 - Messrohr für magnetisch-induktive durchflussmesssysteme - Google Patents
Messrohr für magnetisch-induktive durchflussmesssystemeInfo
- Publication number
- EP3058318A1 EP3058318A1 EP14809288.5A EP14809288A EP3058318A1 EP 3058318 A1 EP3058318 A1 EP 3058318A1 EP 14809288 A EP14809288 A EP 14809288A EP 3058318 A1 EP3058318 A1 EP 3058318A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- measuring
- measuring tube
- contacts
- magnetic field
- tube
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
- G01F1/584—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters constructions of electrodes, accessories therefor
Definitions
- the invention relates to a measuring tube for magnetic-inductive flow measuring systems, wherein the flow measuring systems, the measuring tube for the flow of an electrically conductive medium and a magnetic field generating means for generating at least also perpendicular to the longitudinal axis of the measuring tube extending, preferably alternating magnetic field, at least two in the electrically the measuring electrodes have on the outside of the measuring tube accessible measuring contacts, the measuring tube with the measuring electrodes a first functional unit and corresponding to the measuring contacts of the measuring electrodes mating contacts, the magnetic field generating device and the evaluation unit (if one is present) form a second functional unit and wherein the mating contacts, the magnetic field generation device and the evaluation unit ( if such exists) are provided in a measuring system housing.
- CONFIRMATION COPY to the magnetic field.
- the Faraday's law of induction is exploited in magnetic-inductive flow measuring systems that by means of a magnetic field generating device, which usually has at least one magnetic field coil, usually during the measurement time-changing magnetic field is generated and the magnetic field at least partially passes through the flowing through a measuring tube electrically conductive medium.
- the generated magnetic field has at least one component perpendicular to the longitudinal axis of the measuring tube or perpendicular to the flow direction of the medium.
- At least one magnetic field generating device belongs to the magnetic-inductive flowmeter "for generating a magnetic field extending at least perpendicular to the longitudinal axis of the measuring tube"
- the magnetic field is preferably perpendicular to the longitudinal axis of the Measuring tube resp. is perpendicular to the flow direction of the medium, but sufficient that a component of the magnetic field is perpendicular to the longitudinal axis of the measuring tube or perpendicular to the flow direction of the medium.
- the magnetic field generating device is intended to generate a preferably alternating magnetic field. This expresses the fact that it is not important for the teaching of the invention - according to its starting point, according to the underlying tasks and the solutions to these problems - that it is an alternating magnetic field, even though predominantly magnetic-inductive flowmeter have magnetic field generating devices that generate a changing magnetic field.
- At least two measuring electrodes which preferably pick up the medium, belong to the magnetically inductive flow measuring system in question, which measures the measuring voltage induced in the electrically conductive medium.
- the virtual connecting line of the two measuring electrodes extends at least substantially perpendicular to the direction of the magnetic field passing through the measuring tube perpendicular to the longitudinal axis of the measuring tube.
- the measuring electrodes be provided so that their virtual connection line actually - more or less - perpendicular to the longitudinal axis of the measuring tube passing magnetic field.
- the measuring electrodes may in particular be those which contact the medium.
- the electric field strength generated by induction in the flowing, electrically conductive medium can be tapped off as measuring voltage by measuring electrodes which are in direct contact with the medium, that is, galvanically in contact with the medium.
- magnetic-inductive flow measuring systems in which the measuring voltage is not tapped by measuring electrodes which are not directly in contact with the medium, but rather the capacitance is measured capacitively.
- Two different embodiments of magnetically inductive flow measuring systems are conceivable, namely a first embodiment in which the two functional units, ie the measuring tube on the one hand and the magnetic field generating device on the other hand, are separate components which, when brought into operation together, produce a functioning magnetic-inductive flow measuring system, and a second Embodiment in which the two functional units, so the measuring tube and the magnetic field generating device are already factory-functioned, ie factory-functional components of an already factory-functional magnetic-inductive flowmeter are.
- magnetic-inductive flow measuring systems of the type in question usually includes a magnetic field coil to the magnetic field generating device.
- This magnetic field coil usually has a coil core, and on the coil core close on both sides of the pole pieces.
- the coil core and the pole pieces are usually made of magnetically good conductive material, ie material with a high permeability, and the pole pieces overlap on both sides of the measuring tube.
- functionally important and functionally important magnetic circuit thus include the coil core, the both sides of the coil core subsequent pole pieces and the air gap formed between the pole shoes, in which - in the functional state - is the measuring tube.
- the longitudinal axis of the measuring tube, the magnetic field direction and the virtual connecting line of the two measuring electrodes form a right-angled tripod. If the longitudinal axis of the measuring tube is referred to as the X-axis and the magnetic field direction as the Y-axis, then the virtual connecting line of the two measuring electrodes is the Z-axis of the right-angled tripod; The virtual connecting line of the two measuring electrodes thus extends both perpendicular to the longitudinal axis of the measuring tube and perpendicular to the magnetic field direction.
- the measuring tube according to the invention in which the previously derived and indicated object is achieved, is initially and essentially characterized in that the measuring contacts of the measuring electrodes are designed and provided on the measuring tube such that they essentially only pass through a direction substantially perpendicular to the magnetic field direction translational movement with the mating contacts can be brought into electrically conductive contact.
- This teaching according to the invention is advantageous both for the above-described first embodiment of magnetic-inductive flow measuring systems in which the measuring tube on the one hand and the magnetic field generating device on the other hand initially separate components, which only when they are brought together with each other, a functioning magnetic induction Flow measuring system, as well as advantageous for the second embodiment, in which the measuring tube on the one hand and the magnetic field generating device on the other hand are components of a factory-functional magnetic-inductive flowmeter.
- each of the two measuring contacts of the measuring tube which must be provided on the one hand on one side of the measuring tube and on the other side of the measuring tube, are readily accessible from one side of the corresponding mating contact or with the corresponding counter-contact can be brought into electrically conductive contact.
- a first preferred embodiment of the measuring tube according to the invention is characterized in that the measuring contact of the measuring electrode provided on the side of the measuring tube facing away from the magnetic field coil is extended at least on one side perpendicular to the virtual connecting line of the two measuring electrodes.
- This embodiment is intended for a second functional unit of magnetic-inductive flow measuring systems of the type in question, in which the counter-contact associated with the measuring contact described above is extended until it makes contact with the corresponding measuring contact.
- the mating contact, the second functional unit which must come into electrically conductive contact with the measuring contact, which faces away from the magnetic field coil Side of the measuring tube is provided, the measuring tube practically engage over its entire diameter or overlap.
- Another preferred embodiment of the measuring tube according to the invention is characterized in that the measuring contact of the measuring electrode provided on one side of the measuring tube is extended at least on one side in the circumferential direction of the measuring tube.
- This embodiment requires a second functional unit of magnetic-inductive flow measuring systems of the type in question, in which the counter-contact associated with the measuring contact described above is extended to ontakttechnik with the corresponding measuring contact.
- a measuring contact is circular arc-shaped.
- the circular-arc-shaped measuring contact may comprise somewhat less than 180 °, namely so much less that it does not come into contact with the measuring contact of the other measuring electrode.
- the measuring electrode whose outer measuring contact is designed in a special way, as well as the other measuring electrode, so be executed, as the extensive belongs to the prior art.
- the measuring tube often has at least one preferably annular ground electrode. If such a ground electrode is provided, the teaching of the invention can also be realized in that the ground electrode is one of the two measuring electrodes and is designed as explained in detail above.
- a checking contact can be assigned to each of the two mating contacts.
- the two check contacts on the one hand and the two measuring contacts of the measuring tube on the other hand are designed and arranged so that the check contacts then and only then electrically conductive contact with have the associated mating contacts, although the mating contacts have electrically conductive contact with the associated measuring contacts.
- the measuring tube is designed so that each of the measuring contacts has a galvanically connected with them check Jacobique. This can be realized in a simple manner in that each of the two check counter contacts and the associated measuring contact are made in one piece.
- magnetic-inductive flow measuring systems of the type in question are required for measuring tubes with different flow cross sections, that is to say with different inner diameters.
- To have to use different magnetic-inductive flow measuring systems is at least application technology and customer undesirable. Consequently, another teaching of the invention, which in connection with the previously described teachings of the invention, but also detached therefrom, is of particular importance to realize a magneto-inductive flow measurement system as a whole so that readily measuring tubes with different flow cross-sections, ie with different inner diameters are used or can be used.
- Measuring tubes with different flow cross-sections, ie with different inner diameters can then be used without any problems, if the different measuring tubes each have the same outer diameter and the same measuring contacts, ie only with respect to the flow cross-sections, that is with respect to the inner diameter, are different.
- measuring tubes with different flow cross-sections ie with different inside diameters
- the evaluation unit which can be part of a magnetic-inductive flow-measuring system, but can also be realized separately from a magnetic-inductive flow-measuring system
- the flow cross-section, ie enter the inner diameter of the usable or inserted measuring tube.
- a particular embodiment of a measuring tube according to the invention is characterized in that it is provided with a measuring tube identification element.
- this embodiment only makes sense if, in the second functional unit of the magnetic-inductive flow measuring systems in question, a measuring tube interrogation element associated with the measuring tube identification element of the measuring tubes is provided in the measuring system housing.
- the effective flow cross-section ie the effective inner diameter, is automatically taken into account with the insertion of the appropriately equipped measuring tube for flow measurement.
- FIG. 1 shows schematically the basic structure of a magnetic-inductive flow measuring system
- Fig. 2 is a very schematic representation for explaining one for the
- FIG. 3 is a very schematic representation for explaining another teaching essential to the invention
- FIG. 4 very schematically, a possible embodiment of a magnetic-inductive flow measuring system with an inserted measuring tube and again very schematically, another embodiment of a magnetic-inductive flow measuring system in which a measuring tube according to the invention is not yet used.
- magnetic inductive Strömungsmesss stemen include, first and substantially, an inventive measuring tube 1 for the flow of an electrically conductive medium and a magnetic field generating device 2 for generating an at least perpendicular to the longitudinal axis of the measuring tube. 1 extending, preferably alternating magnetic field and two the measuring voltage induced in the electrically conductive medium, preferably the medium touching measuring electrodes 3, 4, wherein the measuring electrodes 3, 4 outside of the measuring tube 1 accessible measuring contacts 5, 6 have.
- magnetic-inductive flow measuring systems also include an evaluation unit and a measuring system housing.
- the evaluation unit may be part of the magnetic-inductive flow measuring system, but the evaluation unit can also be realized as a separate component.
- the measuring tube 1 according to the invention with the measuring electrodes 3, 4 and the measuring contacts 5 and 6 forms a first functional unit, and counter contacts 7, 8 corresponding to the measuring contacts 5, 6 of the measuring electrodes 3, 4, the magnetic field generating device 2 and the evaluation unit (if one such is present) form a second functional unit.
- the mating contacts 7, 8, the magnetic field generating device 2 and the evaluation unit (if such is present) are provided in the measuring system housing, not shown.
- a magnetic field coil 9 which has a spool not shown in detail.
- the spool core, not shown, and the pole shoes 10, ⁇ normally consist of magnetically highly conductive material, and, as indicated in FIG. 1, the pole shoes 10, 11 overlap the measuring tube 1 on both sides.
- two different embodiments of magnetic-inductive flow measuring systems are possible, namely a first embodiment, in which the two functional units explained above are separate components which are first brought into operation together, yield a functioning electromagnetic flow measuring system, and a second Embodiment in which the two previously described functional units are already brought into operation with one another at the factory, ie components of a magneto-inductive flowmeter which are already in operation at the factory and which have been brought into operation at the factory.
- the measuring contacts 5, 6 of the measuring electrodes 3, 4 are provided on the measuring tube 1 and the mating contacts 7, 8 corresponding to the measuring contacts 5, 6 of the measuring electrodes 3, 4 in the measuring system (not shown) Housing are arranged so that the measuring contacts 5, 6 can be brought into an electrically conductive contact with the mating contacts 7, 8 by a substantially only translational movement substantially perpendicular to the magnetic field direction. This can be realized in different ways.
- FIGS. 2 and 3 A first realization possibility is indicated in FIGS. 2 and 3.
- the measuring contact 6 of the measuring electrode 4 provided at the side of the measuring tube 1 facing away from the magnetic coil 9 is extended at least on one side parallel to the magnetic field direction and the counter contact 8 assigned to the measuring contact 6 described above is extended until it makes contact with the corresponding measuring contact 6.
- Another realization possibility, not shown, is characterized in that the measuring contact of the measuring device provided on the side of the measuring tube facing away from the magnetic field coil extended electrode at least on one side in the circumferential direction of the measuring tube and the counter-contact associated with the measuring contact described above is extended to the contact with the corresponding measuring contact.
- the measuring tube often has at least one preferably annular ground electrode.
- the ground electrode may be one of the two measuring electrodes.
- FIG. 3 serves to explain a teaching of the invention, which is of particular importance in connection with what has been explained above, but also detached from it.
- each of the two mating contacts 7, 8 provided in the second functional unit is assigned a checking contact 12, 13 and that the two checking contacts 12, 13 on the one hand and the two measuring contacts 5, 6 of the measuring tube 1 on the other hand are designed and arranged in this way are that the check contacts 12, 13 then and only then have electrically conductive contact with the associated mating contacts 7, 8, although the mating contacts 7, 8 have electrically conductive contact with the associated measuring contacts 5, 6 of the measuring tube 1.
- the check contacts 12, 13 a galvanically associated with the associated measuring contacts 5, 6 Verification counter contact 14, 15 assigned. This is realized in a simple manner in that each of the two check mating contacts 14, 15 and the respectively associated measuring contact 5, 6 are made in one piece.
- magnetic-inductive flow measuring systems are often required for measuring tubes 1 with different flow cross-sections, that is to say with different inner diameters.
- the essential teaching of the invention is thus also the disposal position of a plurality of measuring tubes with different flow cross-sections, that is, with different inner diameters, which readily with second functional units of the magnetic-inductive flow measuring systems in question assembled into a functioning electromagnetic flowmeter, assembled, and combined.
- Measuring tubes 1 of a plurality of measuring tubes 1 with different flow cross-sections, ie with different inner diameters, can then be used without problems if the different measuring tubes 1 each have the same outer diameter and the same measuring contacts 5, 6, ie if the measuring tubes 1 only with respect to the flow cross sections, ie in terms of the inner diameter, differ.
- Another realization of readily usable measuring tubes 1 of a plurality of measuring tubes 1 with different flow cross-sections, ie with different inner diameters, is characterized in that the different usable or inserted measuring tubes 1 each have the same or corresponding measuring contacts 5, 6. It is sufficient, if the measuring tubes 1 of a plurality of measuring tubes 1, regardless of the flow cross-section, ie independent of the inner diameter, where it with their measuring contacts 5, 6 with the corresponding mating contacts 7, 8 in the second functional unit of the magnetic in question - Inductive flow measuring systems are brought into electrically conductive contact, equal, but at least functionally the same.
- the user can consider the use of measuring tubes with different flow cross-sections, ie with different inner diameters itself, namely the fact that it is realized in the evaluation, which may be part of a magnetic-inductive flow measuring system, but also separated from such a flow measuring system may be, the flow cross-section, that inputs the inner diameter of the measuring tube used in each case.
- this is complicated and can lead to incorrect entries in particular. Consequently, another teaching of the invention is to provide each measuring tube with a measuring tube identification element.
- a measuring tube interrogation element associated with the measuring tube identification element of the measuring tubes must then be provided in the measuring system housing, an embodiment which is not illustrated, but is readily understandable for itself.
- FIGS. 4 and 5 it is possible to magnetically move the cover by means of an upwardly pivotable cover 16 (FIG. 4) or with the aid of a flap 17 (FIG Inductive flow measuring stem can be opened so that the respective measuring tubes 1 to be used with their measuring electrodes 3, 4 and the associated measuring contacts 5, 6 can be readily used.
- Embodiments of magnetic-inductive flow measuring systems which have no moving parts such as a cover 16 in the embodiment of FIG. 4 or a flap 17 in the embodiment of FIG. 5, are preferable to the embodiments shown in FIGS. 4 and 5.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013017286 | 2013-10-17 | ||
DE201310019182 DE102013019182A1 (de) | 2013-10-17 | 2013-11-18 | Messrohr für magnetisch-induktive Durchflussmesssysteme |
PCT/EP2014/002785 WO2015055309A1 (de) | 2013-10-17 | 2014-10-16 | Messrohr für magnetisch-induktive durchflussmesssysteme |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3058318A1 true EP3058318A1 (de) | 2016-08-24 |
Family
ID=52016021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14809288.5A Ceased EP3058318A1 (de) | 2013-10-17 | 2014-10-16 | Messrohr für magnetisch-induktive durchflussmesssysteme |
Country Status (7)
Country | Link |
---|---|
US (1) | US9534943B2 (de) |
EP (1) | EP3058318A1 (de) |
CN (1) | CN105637328A (de) |
CA (1) | CA2927663C (de) |
DE (1) | DE102013019182A1 (de) |
MX (1) | MX357757B (de) |
WO (1) | WO2015055309A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020116004B3 (de) * | 2020-06-17 | 2021-09-23 | Endress+Hauser Flowtec Ag | Magnetisch-induktive Durchflussmesssonde |
Citations (4)
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---|---|---|---|---|
DE3818259C1 (de) * | 1988-05-28 | 1989-09-07 | Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart, De | |
US5220841A (en) * | 1990-12-12 | 1993-06-22 | Carolina Medical Electronics, Inc. | Electromagnetic fluid flow transducer |
US5450758A (en) * | 1994-09-23 | 1995-09-19 | Smoll; Owen C. | Bioprobe replacement sensor and transducer |
WO2002013676A2 (en) * | 2000-08-11 | 2002-02-21 | Sam Technology, Inc. | Ceramic single-plate capacitor eeg electrode |
Family Cites Families (23)
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US4195515A (en) * | 1976-06-28 | 1980-04-01 | Smoll Owen C | In line electromagnetic flow measurement transducer |
US4346604A (en) * | 1980-07-14 | 1982-08-31 | Narco Bio-Systems, Inc. | Electromagnetic flow probe |
DE3643755C1 (en) * | 1986-11-13 | 1992-10-22 | Ruhrtal Elek Zitaetsgesellscha | Switching fault protection device |
US4881413A (en) * | 1988-10-31 | 1989-11-21 | Bio-Medicus, Inc. | Blood flow detection device |
JP3065115B2 (ja) * | 1991-02-18 | 2000-07-12 | 日本ゼオン株式会社 | 医療用血液回路 |
DE69216381T2 (de) | 1991-09-03 | 1997-04-24 | Aichi Tokei Denki Kk | Magnetisch induktiver freispiegeldurchflussmesser |
DE19655107C2 (de) | 1996-04-17 | 2002-11-14 | Krohne Messtechnik Kg | Magnetisch-induktives Durchflußmeßgerät |
DE19907864A1 (de) | 1999-02-23 | 2000-09-14 | Krohne Messtechnik Kg | Magnetisch-induktives Durchflußmeßgerät |
DE10064738B4 (de) | 2000-12-22 | 2004-02-12 | Krohne Meßtechnik GmbH & Co KG | Verfahren zur Prüfung eines magnetisch-induktiven Durchflußmeßgeräts |
JP3915459B2 (ja) * | 2001-09-20 | 2007-05-16 | 横河電機株式会社 | 電磁流量計 |
US6598487B1 (en) * | 2002-05-20 | 2003-07-29 | Marsh-Mcbirney, Inc. | Magnetic flowmeter having a separable magnet/electrode assembly |
DE10356007B3 (de) * | 2003-11-27 | 2005-07-07 | Krohne Meßtechnik GmbH & Co KG | Verfahren zum Betreiben eines magnetisch-induktiven Durchflußmeßgeräts |
DE102004014300A1 (de) * | 2004-03-22 | 2005-10-06 | Endress + Hauser Flowtec Ag, Reinach | Vorrichtung zum Messen und/oder Überwachen des Durchflusses eines Messmediums |
US7827870B2 (en) * | 2005-04-26 | 2010-11-09 | Severn Trent Metering Services Limited | Meter |
CN101194147B (zh) * | 2005-05-16 | 2010-06-09 | 恩德斯+豪斯流量技术股份有限公司 | 磁感应流量计和用于这种流量计的测量管 |
JP5083853B2 (ja) * | 2005-09-07 | 2012-11-28 | 愛知時計電機株式会社 | 電磁流量計 |
US7415892B2 (en) * | 2006-03-24 | 2008-08-26 | Wing Yin Lam | Disposable flow chamber electro-magnetic flow sensor |
DE102007004826B4 (de) | 2007-01-31 | 2009-06-18 | Ifm Electronic Gmbh | Messvorrichtung für ein magnetisch induktives Durchflussmessgerät und Durchflussmessgerät |
DE102007014469A1 (de) * | 2007-03-22 | 2008-09-25 | Endress + Hauser Flowtec Ag | Verfahren zur vorausschauenden Wartung und/oder Verfahren zur Bestimmung der elektrischen Leitfähigkeit bei einem magnetischinduktiven Durchflussmessgerät |
DE102008005258A1 (de) | 2008-01-18 | 2009-07-30 | Abb Ag | Verfahren zum Betrieb einer Durchflussmesseinrichtung, sowie eine Durchflussmesseinrichtung selbst |
US9633397B2 (en) | 2010-09-15 | 2017-04-25 | GM Global Technology Operations LLC | Social networking with autonomous agents |
CN102221383B (zh) * | 2011-03-04 | 2013-02-27 | 厦门海旭东方智能科技有限公司 | 差动磁感应式流量计 |
DE102012002013B4 (de) | 2012-02-03 | 2015-09-10 | Krohne Messtechnik Gmbh | Prüfung einer Messgerätanordnung, entsprechende Messgerätanordnung und Prüfanordnung |
-
2013
- 2013-11-18 DE DE201310019182 patent/DE102013019182A1/de not_active Withdrawn
-
2014
- 2014-10-16 WO PCT/EP2014/002785 patent/WO2015055309A1/de active Application Filing
- 2014-10-16 CN CN201480057010.7A patent/CN105637328A/zh active Pending
- 2014-10-16 EP EP14809288.5A patent/EP3058318A1/de not_active Ceased
- 2014-10-16 MX MX2016004888A patent/MX357757B/es active IP Right Grant
- 2014-10-16 CA CA2927663A patent/CA2927663C/en active Active
- 2014-10-16 US US15/030,145 patent/US9534943B2/en active Active
Patent Citations (4)
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DE3818259C1 (de) * | 1988-05-28 | 1989-09-07 | Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart, De | |
US5220841A (en) * | 1990-12-12 | 1993-06-22 | Carolina Medical Electronics, Inc. | Electromagnetic fluid flow transducer |
US5450758A (en) * | 1994-09-23 | 1995-09-19 | Smoll; Owen C. | Bioprobe replacement sensor and transducer |
WO2002013676A2 (en) * | 2000-08-11 | 2002-02-21 | Sam Technology, Inc. | Ceramic single-plate capacitor eeg electrode |
Non-Patent Citations (1)
Title |
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See also references of WO2015055309A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2927663A1 (en) | 2015-04-23 |
US20160245679A1 (en) | 2016-08-25 |
US9534943B2 (en) | 2017-01-03 |
DE102013019182A1 (de) | 2015-05-07 |
CN105637328A (zh) | 2016-06-01 |
WO2015055309A1 (de) | 2015-04-23 |
MX357757B (es) | 2018-07-24 |
MX2016004888A (es) | 2016-10-12 |
CA2927663C (en) | 2017-09-26 |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20160406 |
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