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公开(公告)号：US11782026B2
公开(公告)日：2023-10-10
申请号：US17652509
申请日：2022-02-25
Applicant: ABB Schweiz AG
Inventor： Martin Zlatanski , Thomas Wiik
Abstract: A measurement device for measuring properties of a metal sheet processed in a rolling mill, including: an inspection coil set including a transmitter coil and a receiver coil, the transmitter coil being configured to apply a time-varying magnetic field to the metal sheet, and the receiver coil being configured to detect a magnetic field transient produced from the metal sheet. The property of the metal sheet is derivable from the magnetic field transient. A correction coil set, for detecting a spatial deviation of the metal sheet from a reference plane, each correction coil being connectable to a capacitor to form a respective resonance circuit having a resonance frequency. The correction coils are resonated at the respective resonance frequency. A shift in the resonance frequency in the presence of the metal sheet is detectable and the spatial deviation is derivable from the shifts.
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Patent Agency Ranking
公开(公告)号：US20230019486A1
公开(公告)日：2023-01-19
申请号：US17866385
申请日：2022-07-15
Applicant: ABB Schweiz AG
Inventor： Martin Zlatanski , Yannick Maret , Wojciech Piasecki , Matija Varga
IPC: G01R31/327
Abstract: A circuit breaker is connected between an input supply line and an output supply line of a low-voltage electrical system and comprises a test signal transceiver and evaluator. The test signal transceiver comprises a first transceiver section being capacitively or inductively coupled, at a first coupling point, with the input supply line, and a second transceiver section being inductively coupled, at a second coupling point, with the input or output supply line. One of the first and second transceiver section is a test signal transmitter configured to generate and inject an AC test signal into the input or output supply line, and the other one of the first and second transceiver section is a test signal receiver configured to receive the test signal from the input or output supply line. A test signal evaluator is configured to determine the state of the circuit breaker from the received test signal.
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公开(公告)号：US20240264120A1
公开(公告)日：2024-08-08
申请号：US18575897
申请日：2022-06-28
Applicant: ABB Schweiz AG
Inventor： Martin Zlatanski , Parham Davami , Jarl Sobel , Thomas Wiik , Jan Nilsson
CPC classification number: G01N27/9006 , G01B7/10 , G01N27/025 , G01N27/028
Abstract: A receiver for a Pulsed Eddy Current (PEC) system configured to detect a changing electromagnetic field generated by eddy currents induced in an object of an electrically conductive material. The receiver includes an electrically conductive receiver coil, a high-voltage receiver channel, a low-voltage receiver channel, and an over-voltage protection connected between the receiver coil and the LVRC. The OVP includes a bias circuit B, a diode D connected between the receiver coil and the bias circuit, and a capacitor C connected between the bias circuit and the LVRC.
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公开(公告)号：US20220283120A1
公开(公告)日：2022-09-08
申请号：US17652509
申请日：2022-02-25
Applicant: ABB Schweiz AG
Inventor： Martin Zlatanski , Thomas Wiik
Abstract: A measurement device for measuring properties of a metal sheet processed in a rolling mill, including: an inspection coil set including a transmitter coil and a receiver coil, the transmitter coil being configured to apply a time-varying magnetic field to the metal sheet, and the receiver coil being configured to detect a magnetic field transient produced from the metal sheet. The property of the metal sheet is derivable from the magnetic field transient. A correction coil set, for detecting a spatial deviation of the metal sheet from a reference plane, each correction coil being connectable to a capacitor to form a respective resonance circuit having a resonance frequency. The correction coils are resonated at the respective resonance frequency. A shift in the resonance frequency in the presence of the metal sheet is detectable and the spatial deviation is derivable from the shifts.
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公开(公告)号：US11940272B2
公开(公告)日：2024-03-26
申请号：US18255993
申请日：2021-09-21
Applicant: ABB Schweiz AG
Inventor： Jarl Sobel , Martin Zlatanski
IPC: G01B7/06
CPC classification number: G01B7/10
Abstract: The present disclosure relates to a transmitter for a Pulsed Eddy Current system, configured to generate a changing electromagnetic field which induces eddy currents in an object of an electrically conductive material arranged within the electromagnetic field. The transmitter includes a switching device and a transmitter coil configured to be connected to a voltage source. The switching device is arranged for switching a current generated by the voltage source through the transmitter coil. The transmitter coil comprises a plurality of parallel electrically conductive coil layers with a respective damping resistor connected across each of the coil layers, each of the coil layers being connected in series with a respective diode.
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公开(公告)号：US20240044635A1
公开(公告)日：2024-02-08
申请号：US18255993
申请日：2021-09-21
Applicant: ABB Schweiz AG
Inventor： Jarl Sobel , Martin Zlatanski
IPC: G01B7/06
CPC classification number: G01B7/10
Abstract: The present disclosure relates to a transmitter for a Pulsed Eddy Current system, configured to generate a changing electromagnetic field which induces eddy currents in an object of an electrically conductive material arranged within the electromagnetic field. The transmitter includes a switching device and a transmitter coil configured to be connected to a voltage source. The switching device is arranged for switching a current generated by the voltage source through the transmitter coil. The transmitter coil comprises a plurality of parallel electrically conductive coil layers with a respective damping resistor connected across each of the coil layers, each of the coil layers being connected in series with a respective diode.
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