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11. 发明公开

EP4053494A1 THICKNESS MEASUREMENT USING A PULSED EDDY CURRENT SYSTEM 有权
公开(公告)号：EP4053494A1
公开(公告)日：2022-09-07
申请号：EP21160295.8
申请日：2021-03-02
申请人： ABB Schweiz AG
发明人： LINDER, Sten , SOBEL, Jarl , EIDENVALL, Anders , HALDIN, Martin , DZIECIOL, Aleksander
IPC分类号： G01B7/06 , G01R27/00
摘要： The present disclosure relates to a method of non-contact measurement of a thickness (d) of an object (1) of an electrically conductive material by means of a Pulsed Eddy Current, PEC, system (10) comprising a transmitter coil (2) and a receiver coil (3). The method comprises, after having turned off a current in the transmitter coil, at the receiver coil, measuring a voltage induced by the decaying magnetic field at a first time point, a second time point and a third time point. The method also comprises calculating a total magnetic flux which is generated by the eddy currents in the object at the first time point and picked up by the receiver coil, by comparing the measured flux at the first time point with a predetermined total flux picked up by the receiver coil when no object is present. The method also comprises normalizing measured magnetic flux resulting from the eddy currents and picked up by the receiver coil, using the calculated total magnetic flux as a normalization factor such that the normalized eddy current flux is independent of a distance between the object and the transmitter and receiver coils. The method also comprising, based on the measurements at the first, second and third time points, determining the thickness and the resistivity of the object.

12. 发明授权

EP3605008B1 VACUUM PUMP, MAIN SENSOR, AND SCREW GROOVE STATOR 有权
公开(公告)号：EP3605008B1
公开(公告)日：2022-08-24
申请号：EP18771283.1
申请日：2018-03-02
发明人： KABASAWA Takashi
IPC分类号： F04D19/04 , F04D27/00 , G01B7/06

13. 发明公开

EP4031771A1 A SENSING DEVICE, SYSTEM AND METHOD FOR A PUMP 审中-实审
公开(公告)号：EP4031771A1
公开(公告)日：2022-07-27
申请号：EP20866421.9
申请日：2020-09-18
申请人： Weir Minerals Australia Ltd
发明人： ARULKUMAR, Jonathan Alvin , DUONG, Chi Huy , GLAVES, Garry Bruce
IPC分类号： F04D7/02 , F04D7/04 , F04D15/02 , F04D17/08 , F04D29/40 , F04D29/66 , F04C14/28 , G01B7/06 , G01N27/82 , G01N29/24

14. 发明公开

EP3872443A1 HIGH ACCURACY AND HIGH STABILITY MAGNETIC DISPLACEMENT SENSOR IN THE PRESENCE OF ELECTROMAGNETIC INTERFERENCES 审中-实审
公开(公告)号：EP3872443A1
公开(公告)日：2021-09-01
申请号：EP21156408.3
申请日：2021-02-10
申请人： Honeywell Limited
发明人： TIXIER, Sebastien , HUGHES, Michael
IPC分类号： G01B7/06 , G01B11/06
摘要： An accurate and stable displacement sensor that reads through coated metal substrates achieves better than one micron accuracy includes: an electromagnetic coil positioned in a first enclosure; (ii) means for generating a magnetic field from the electromagnetic coil; (iii) a second enclosure which is spaced apart from the first enclosure, wherein the second enclosure includes dual magnetic sensors, such as fluxgate sensors, that are configured to measure the magnetic field; and (iv) means for calculating the separation between the operative surfaces of the enclosures from magnetic field measurements. A permanent magnet can be used instead of the electromagnetic coil and associated driving energy source. A precise displacement measurement is given by a mathematical function (such as the ratio or difference) of the two magnetic sensors demodulated signals. The displacement sensor can be mounted on a maneuverable C-frame to monitor the caliper of anodes and cathodes produced for lithium ion batteries.

15. 发明公开

EP3779351A2 CAPACITIVE SENSOR FOR MEASURING TRANSVERSE GEOMETRIC PARAMETERS OF FLAT RIBBON-SHAPED TEXTILE FIBROUS STRUCTURES AND RELATED METHOD 有权
公开(公告)号：EP3779351A2
公开(公告)日：2021-02-17
申请号：EP20186932.8
申请日：2020-07-21
申请人： VÚTS, a.s.
发明人： Svoboda, Miroslav , Braier, Zdenek , Skop, Petr , Zdarek, Pavel
IPC分类号： G01B7/06 , G01N33/36
摘要： The invention relates to a method of measuring transverse geometric parameters of flat ribbon-shaped textile fibrous structures by a capacitive sensor, in which the textile fibrous structure passes through a measuring slot in a plate capacitor, whereby the textile fibrous structure passes through a measuring slot of a first plate capacitor and subsequently through a measuring slot of a second plate capacitor, whereby in each plate capacitor the capacitance is measured, which is converted by an RC circuit into a pulse of width τ M and compared with an adjustable pulse of width τ K generated by a compensation generator, which corresponds to the pulse width generated by the plate capacitor without the textile fibrous structure, and the time difference of pulses of width Δτ between the pulse of the RC circuit and the pulse of the compensation generator is converted by a counter counting the pulses from an auxiliary oscillator into a number of pulses p and information about the number of pulses p 1 , p 2 of each of the two counters is sent to an evaluation circuit for calculating the geometric parameters of the textile fibrous structure.

16. 发明公开

EP3771882A1 SENSOR HAVING A SHAPED COIL 有权
公开(公告)号：EP3771882A1
公开(公告)日：2021-02-03
申请号：EP20187358.5
申请日：2020-07-23
申请人： Allegro MicroSystems, LLC
发明人： CADUGAN, Bryan
IPC分类号： G01B7/00 , G01B7/02 , G01B7/06
摘要： Methods and apparatus for sensing target position by generating a signal by energizing a shaped coil with an AC signal. A sensor receives a signal reflected by a target in response to the signal from the shaped coil, wherein the shaped coil has a first width, and wherein the sensor includes a first sensing element aligned with the shaped coil at the first width, wherein a ratio of the first width and a distance from the sensor to the target is about three-to-one. The received signal can be processed to determine position information of the target. In some embodiments, a shaped coil can have a trapezoidal shape and sensors aligned with the coil to select a sensor based upon target to sensor distance.

17. 发明授权

EP2399101B1 ELECTROMAGNETIC BATH LEVEL MEASUREMENT FOR PYROMETALLURGICAL FURNACES 有权
公开(公告)号：EP2399101B1
公开(公告)日：2020-09-16
申请号：EP10743384.9
申请日：2010-02-23
申请人： Hatch LTD.
发明人： SADRI, Afshin , SHAMELI, Ehsan , WASMUND, Bert O. , VOERMANN, Nils W.
IPC分类号： G01F23/28 , G01B15/02 , G01B7/06 , G01F23/284 , G01N22/00 , G01N23/00 , G01N27/74 , F27D21/00 , B22D2/00 , G01F23/288

18. 发明授权

EP2989417B1 MESSSONDE ZUR MESSUNG DER DICKE DÜNNER SCHICHTEN 有权
公开(公告)号：EP2989417B1
公开(公告)日：2020-08-12
申请号：EP14722612.0
申请日：2014-04-24
申请人： Helmut Fischer GmbH Institut für Elektronik und Messtechnik.
发明人： VOLZ, Werner
IPC分类号： G01B7/06 , G01D11/10

19. 发明授权

EP3104115B1 PROBE CALIBRATION DEVICE, METHOD OF CALIBRATING A PROBE AND METHOD OF FABRICATION 有权
公开(公告)号：EP3104115B1
公开(公告)日：2019-12-11
申请号：EP16174054.3
申请日：2016-06-10
申请人： The Boeing Company
发明人： FRASCH, Lydell L. , ROMAN, Nathaniel P.
IPC分类号： G01B21/04 , G01R1/067 , G01R35/00 , G01R27/06 , H01P5/08 , G01B7/06 , G01N22/00

20. 发明授权

EP2715335B1 MESSSONDE ZUR MESSUNG DER DICKE DÜNNER SCHICHTEN SOWIE VERFAHREN ZUR HERSTELLUNG EINES SENSORELEMENTES FÜR DIE MESSSONDE 有权
公开(公告)号：EP2715335B1
公开(公告)日：2019-10-16
申请号：EP12726767.2
申请日：2012-05-24
申请人： Helmut Fischer GmbH Institut für Elektronik und Messtechnik.
发明人： FISCHER, Helmut
IPC分类号： G01N27/90 , G01B7/06

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