TEMPERATURMESSEINRICHTUNG UND VERFAHREN ZUR TEMPERATURBESTIMMUNG

    公开(公告)号:WO2020035260A1

    公开(公告)日:2020-02-20

    申请号:PCT/EP2019/069574

    申请日:2019-07-19

    Applicant: ABB SCHWEIZ AG

    Abstract: Die Erfindung betrifft eine Temperaturmesseinrichtung zur Bestimmung einer Mediumstemperatur über die Temperatur einer das Medium umschließenden Oberfläche. Es wird vorgeschlagen,dass mindestens ein Messsensor (11) und mindestens ein Referenzsensor (12) über mineralisolierte Mantelleitungen an Messwertverarbeitungsmittel (16) anzuschließen, wobei die Mantelleitungen nahe der Messstelle mit mindestens einem Koppelelement (23) verbunden sind, wobei mindestens ein Messsensor (11) nahe der Messstelle angeordnet ist und wobei der Wärmewiderstand (R1) zwischen dem mindestens einen Messsensor (11) und dem Koppelelement (23) größer ist als der Wärmewiderstand (R2) zwischen dem mindestens einen Referenzsensor (12) und dem Koppelelement (23).

    TESTING METHOD FOR NON-INVASIVE TEMPERATURE MEASURING INSTRUMENTS

    公开(公告)号:WO2020234156A1

    公开(公告)日:2020-11-26

    申请号:PCT/EP2020/063623

    申请日:2020-05-15

    Applicant: ABB SCHWEIZ AG

    Abstract: A method for testing a temperature measuring instrument (1), wherein said instrument (1) comprises at least one sensor (2a-2c) that changes its electrical resistance R, and/or an electrical voltage U that it produces, in response to being exposed to a change in temperature T, and wherein the instrument (1) is configured to be coupled to an object of interest (3), the method comprising: ° changing (110) the temperature T of at least one sensor (2a-2c) by an amount that is detectable given the measurement resolution dT of the at least one sensor (2a-2c), by driving an electrical manipulation current IM through this sensor (2a-2c); ° obtaining (120) one or measurement values (4) from at least one sensor (2a-2c); and ° evaluating (130) a state (5a) of the measuring instrument (1), a state (5b) of one or more of its sensors (2a-2c), and/or a state (5c) of a coupling to an object of interest (3), from the one or more measurement values (4).

    A PRESSURE SENSOR FOR A PIPE
    3.
    发明申请

    公开(公告)号:WO2020020779A2

    公开(公告)日:2020-01-30

    申请号:PCT/EP2019/069524

    申请日:2019-07-19

    Applicant: ABB SCHWEIZ AG

    Abstract: The present invention relates to a pressure sensor for a pipe and a method to measure pressure in a pipe non-invasively. The pressure sensor comprises a flexible strip (1), at least one strain sensing element (4), and a tensioning device (5, 9, 10). A first end (2) of the strip is configured to pass through a second end (3) of the strip. Between the first end of the strip and the second end of the strip, the strip comprises the at least one strain sensing element. The pressure sensor is configured to attach to a pipe (6), wherein the first end of the strip extends through the second end of the strip. The tensioning device is configured to tension the pressure sensor around the pipe.

    A PRESSURE SENSOR FOR A PIPE
    4.
    发明申请

    公开(公告)号:WO2020020779A3

    公开(公告)日:2020-01-30

    申请号:PCT/EP2019/069524

    申请日:2019-07-19

    Applicant: ABB SCHWEIZ AG

    Abstract: The present invention relates to a pressure sensor for a pipe and a method to measure pressure in a pipe non-invasively. The pressure sensor comprises a flexible strip (1), at least one strain sensing element (4), and a tensioning device (5, 9, 10). A first end (2) of the strip is configured to pass through a second end (3) of the strip. Between the first end of the strip and the second end of the strip, the strip comprises the at least one strain sensing element. The pressure sensor is configured to attach to a pipe (6), wherein the first end of the strip extends through the second end of the strip. The tensioning device is configured to tension the pressure sensor around the pipe.

    VERFAHREN ZUR NICHT-INTRUSIVEN ERMITTLUNG EINER TEMPERATUR EINES DURCH EINEN LEITUNGSABSCHNITT STRÖMENDEN FLUIDS

    公开(公告)号:WO2019170778A1

    公开(公告)日:2019-09-12

    申请号:PCT/EP2019/055618

    申请日:2019-03-06

    Applicant: ABB SCHWEIZ AG

    Abstract: Die Erfindung betrifft ein Verfahren zur Ermittlung einer Temperatur eines durch einen Leitungsabschnitt (11) strömenden Fluids (12), wobei: - eine Temperatur des Leitungsabschnittes (11) bestimmt wird, - eine Referenztemperatur in einem Abstand (13) von einer Oberfläche (14) des Leitungsabschnittes (11) erfasst wird, - ein Wärmeübertragungsverhalten, insbesondere ein thermischer Widerstand, einer Grenzschicht (15) des Fluids (12) an einer inneren Wand (16) des Leitungsabschnittes (11) anhand von zumindest einer Stoffeigenschaft und zumindest eines Wertes einer Zustandsgröße des Fluids (12) ermittelt wird und, - die Temperatur des Fluids (12) anhand des Wärmeübertragungsverhaltens der Grenzschicht (15), eines Wärmeübertragungsverhaltens, insbesondere eines thermischen Widerstandes, des Leitungsabschnittes (11), der Temperatur des Leitungsabschnittes (11) und der Referenztemperatur ermittelt wird.

    METHOD FOR DETECTING AN ELECTRICAL DISCHARGE IN AN ELECTRICAL APPARATUS AND A SYSTEM THEREFOR

    公开(公告)号:EP3933418A1

    公开(公告)日:2022-01-05

    申请号:EP20183241.7

    申请日:2020-06-30

    Applicant: ABB Schweiz AG

    Abstract: The present disclosure provides a method for detecting an electrical discharge (1) in an electrical apparatus (5), the method comprises: Sensing an electromagnetic wave (4) using an electrical sensor (101) and generating an electric signal (SE) for a predetermined time period (T1); Sensing an acoustic wave (3) using an acoustic sensor (102) and generating an acoustic signal (SA) for the predetermined time period (T1), said acoustic sensor (102) being associated with at least one compartment (5a) of the electrical apparatus (5); Generating electrical data (201) based on a quasi-periodic characteristic of electric peak sequences of said electrical signal (SE); Generating acoustic data (202) based on a quasi-periodic characteristic of acoustic peak sequences of said acoustic signal (SA); wherein the electrical data (201) is combined with the acoustic data (202) to provide an operation status of the at least one compartment (5a).

    METHOD FOR DETECTING AN ELECTRICAL DISCHARGE IN AN ELECTRICAL APPARATUS AND SYSTEM THEREFOR

    公开(公告)号:EP3943957A1

    公开(公告)日:2022-01-26

    申请号:EP20186742.1

    申请日:2020-07-20

    Applicant: ABB Schweiz AG

    Abstract: The present disclosure provides a detection system (100, 200) for detecting an electrical discharge in an electrical apparatus, and a method for detecting an electrical discharge in an electrical apparatus. The detection system (100, 200) includes a first sensing device (101, 101a) configured for sensing an acoustic wave (3) and an electromagnetic wave (4) and generating a first combined signal (S C , S C1 ) and a signal processing device (110) configured for processing the first combined signal (S C , S C1 ) to determine the occurrence and properties of an electrical discharge (1). In further embodiments, the detection system (200) further includes at least a second sensing device (101b) configured for sensing the acoustic wave (3) and the electromagnetic wave (4) and generating a second combined signal (S C2 ), wherein the signal processing device (110) is further configured for comparing the first combined signal (S C1 ) and the second combined signal (S C2 ).

    A PRESSURE SENSOR FOR A PIPE
    10.
    发明公开

    公开(公告)号:EP3599451A1

    公开(公告)日:2020-01-29

    申请号:EP18185013.2

    申请日:2018-07-23

    Applicant: ABB Schweiz AG

    Abstract: The present invention relates to a pressure sensor for a pipe and a method to measure pressure in a pipe non-invasively. The pressure sensor comprises a flexible strip (1), at least one strain sensing element (4), and a tensioning device (5, 9, 10). A first end (2) of the strip is configured to pass through a second end (3) of the strip. Between the first end of the strip and the second end of the strip, the strip comprises the at least one strain sensing element. The pressure sensor is configured to attach to a pipe (6), wherein the first end of the strip extends through the second end of the strip. The tensioning device is configured to tension the pressure sensor around the pipe.

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