Patents by Inventor Holger GLASMACHERS
Holger GLASMACHERS has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11062027Abstract: A system includes an electrical apparatus and a connecting device. The electrical apparatus comprises a control unit, a first interface device and a second interface device. A wire-bound first communication path is provided between the control unit and the connecting device via the first interface device and a second communication path is provided between the control unit and the second interface device. The system further includes a coupling device that can be set into a first coupling state and into a second coupling state. The first communication path is led through the coupling device in the first coupling state and is interrupted in the coupling device in the second coupling state. The control unit detects an attack on the system via the second interface device and, in the event of a detected attack, sets the coupling device from the first coupling state into the second coupling state.Type: GrantFiled: January 14, 2019Date of Patent: July 13, 2021Assignee: KROHNE Messtechnik GmbHInventor: Holger Glasmachers
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Patent number: 11036860Abstract: An electrical apparatus includes a secured functional unit, an unsecured functional unit and a supply device. The secured functional unit has a first interface device for secure communication and a control unit, and the unsecured functional unit has a second interface device for non-secure communication. The secured functional unit and the unsecured functional unit are designed for communicating with one another. The supply device further includes a supply unit. A first power path for supplying the secured functional unit is arranged between the supply unit and the secured functional unit, and a second power path for supplying the secured functional unit with electrical energy from the supply unit is arranged between the supply unit and the unsecured functional unit. A switch is arranged in the second power path. A second power path in the switch is looped in the first switching state and disconnected in the second switching state.Type: GrantFiled: January 14, 2019Date of Patent: June 15, 2021Assignee: KROHNE Messtechnik GmbHInventor: Holger Glasmachers
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Patent number: 10805065Abstract: An electrical device includes a functional unit subdivided into a secure functional block and a non-secure functional block. The functional unit has a single transmission device for transmitting information from the secure functional block into the non-secure functional block. The functional unit has a first interface device and the first interface device is arranged in the non-secure functional block. A key is stored in the secure functional block. The secure functional block is designed to assign an identifier to a meaning using the key, to form a value pair from the identifier and a value, and to transmit the value pair via the transmission device in the non-secure functional block. The non-secure functional block is designed to transmit the value pair via the first interface.Type: GrantFiled: May 3, 2018Date of Patent: October 13, 2020Assignee: KROHNE Messtechnik GmbHInventors: Holger Glasmachers, Michael Deilmann
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Patent number: 10585055Abstract: A method for operating an inductive conductivity meter having a transmitting coil, a receiving coil and a terminating impedance device, the transmitting coil having a transmitting coil terminal, the receiving coil having a receiving coil terminal and the terminating impedance device having a terminating impedance, wherein the receiving coil is terminated with the terminating impedance device and wherein the transmitting coil and the receiving coil are inductively coupled with one another by an electrically conductive medium. To provide an improved accuracy of a determination of a conductivity of a medium a setpoint input impedance is specified, an input impedance is determined at the transmitting coil terminal, the terminating impedance is set such that the input impedance is matched to the setpoint input impedance, and a conductivity of the medium is determined using the adjusted input impedance and the set termination impedance.Type: GrantFiled: March 9, 2018Date of Patent: March 10, 2020Assignee: KROHNE MESSTECHNIK GMBHInventor: Holger Glasmachers
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Patent number: 10488451Abstract: A method for operating an inductive conductivity measuring device that has a transmitting coil with an input and a receiving coil, the transmitting coil and the receiving coil being inductively coupled to one another by an electrically conductive medium. An electrical preset alternating signal is generated and fed to the input of the transmitting coil. The method for operating an inductive conductivity measuring device is improved in that a frequency of a preset alternating signal is varied in a frequency interval, in the frequency interval, a frequency-dependent minimum input impedance at the input of the transmitting coil is determined using a response alternating signal, a minimum frequency of the response alternating signal is determined at the minimum input impedance at the input of the transmitting coil, and a conductivity of the medium is determined using the minimum frequency of the response alternating signal.Type: GrantFiled: November 24, 2017Date of Patent: November 26, 2019Assignee: KROHNE MESSTECHNIK GMBHInventors: Holger Glasmachers, Philipp Mertmann
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Patent number: 10393686Abstract: A conductivity meter for measuring an electrical conductivity of a liquid medium having a housing, a conductive first measuring cell and a control device for controlling the first measuring cell, wherein the first measuring cell has a first conductivity measuring range, a first electrode and a second electrode, and wherein the first measuring cell and the control device are arranged at the housing. To provide a conductivity meter for measuring an electrical conductivity of a liquid medium, whose conductivity measuring range is increased, the conductivity meter has a second measuring cell with a second conductivity measuring range, that the second measuring cell is arranged at the housing, and that the control device is designed for controlling the second measuring cell.Type: GrantFiled: September 29, 2017Date of Patent: August 27, 2019Assignee: KROHNE MESSTECHNIK GMBHInventors: Holger Glasmachers, Christoph Schmits
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Publication number: 20190220600Abstract: An electrical apparatus includes a secured functional unit, an unsecured functional unit and a supply device. The secured functional unit has a first interface device for secure communication and a control unit, and the unsecured functional unit has a second interface device for non-secure communication. The secured functional unit and the unsecured functional unit are designed for communicating with one another. The supply device further includes a supply unit. A first power path for supplying the secured functional unit is arranged between the supply unit and the secured functional unit, and a second power path for supplying the secured functional unit with electrical energy from the supply unit is arranged between the supply unit and the unsecured functional unit. A switch is arranged in the second power path. A second power path in the switch is looped in the first switching state and disconnected in the second switching state.Type: ApplicationFiled: January 14, 2019Publication date: July 18, 2019Applicant: KROHNE Messtechnik GmbHInventor: Holger Glasmachers
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Publication number: 20190220598Abstract: A system includes an electrical apparatus and a connecting device. The electrical apparatus comprises a control unit, a first interface device and a second interface device. A wire-bound first communication path is provided between the control unit and the connecting device via the first interface device and a second communication path is provided between the control unit and the second interface device. The system further includes a coupling device that can be set into a first coupling state and into a second coupling state. The first communication path is led through the coupling device in the first coupling state and is interrupted in the coupling device in the second coupling state. The control unit detects an attack on the system via the second interface device and, in the event of a detected attack, sets the coupling device from the first coupling state into the second coupling state.Type: ApplicationFiled: January 14, 2019Publication date: July 18, 2019Inventor: Holger Glasmachers
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Patent number: 10161867Abstract: A method for determining a property of a medium, wherein an excitation signal is generated and transmitted into the medium, a measuring signal is generated from the excitation signal transmitted into the medium, the measuring signal is measured, an amplitude of the excitation signal and an amplitude of the measuring signal are determined, and the property of the medium is determined using the amplitude of the excitation signal and the amplitude of the measuring signal. To provide a method in which the accuracy of determination of the property of the medium is improved, the amplitude of the excitation signal is determined by digitizing the excitation signal and applying a lock-in method to the digitized excitation signal and determining the amplitude of the measuring signal by digitizing the measuring signal and applying the lock-in method to the digitized measuring signal.Type: GrantFiled: November 1, 2017Date of Patent: December 25, 2018Assignee: KROHNE MESSTECHNIK GMBHInventors: Holger Glasmachers, Edin Andelic, Andreas Schwaner
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Publication number: 20180323961Abstract: An electrical device includes a functional unit subdivided into a secure functional block and a non-secure functional block. The functional unit has a single transmission device for transmitting information from the secure functional block into the non-secure functional block. The functional unit has a first interface device and the first interface device is arranged in the non-secure functional block. A key is stored in the secure functional block. The secure functional block is designed to assign an identifier to a meaning using the key, to form a value pair from the identifier and a value, and to transmit the value pair via the transmission device in the non-secure functional block. The non-secure functional block is designed to transmit the value pair via the first interface.Type: ApplicationFiled: May 3, 2018Publication date: November 8, 2018Inventors: Holger Glasmachers, Michael Deilmann
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Publication number: 20180259470Abstract: A method for operating an inductive conductivity meter having a transmitting coil, a receiving coil and a terminating impedance device, the transmitting coil having a transmitting coil terminal, the receiving coil having a receiving coil terminal and the terminating impedance device having a terminating impedance, wherein the receiving coil is terminated with the terminating impedance device and wherein the transmitting coil and the receiving coil are inductively coupled with one another by an electrically conductive medium. To provide an improved accuracy of a determination of a conductivity of a medium a setpoint input impedance is specified, an input impedance is determined at the transmitting coil terminal, the terminating impedance is set such that the input impedance is matched to the setpoint input impedance, and a conductivity of the medium is determined using the adjusted input impedance and the set termination impedance.Type: ApplicationFiled: March 9, 2018Publication date: September 13, 2018Applicant: KROHNE Messtechnik GmbHInventor: Holger Glasmachers
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Publication number: 20180149684Abstract: A method for operating an inductive conductivity measuring device that has a transmitting coil with an input and a receiving coil, the transmitting coil and the receiving coil being inductively coupled to one another by an electrically conductive medium. An electrical preset alternating signal is generated and fed to the input of the transmitting coil. The method for operating an inductive conductivity measuring device is improved in that a frequency of a preset alternating signal is varied in a frequency interval, in the frequency interval, a frequency-dependent minimum input impedance at the input of the transmitting coil is determined using a response alternating signal, a minimum frequency of the response alternating signal is determined at the minimum input impedance at the input of the transmitting coil, and a conductivity of the medium is determined using the minimum frequency of the response alternating signal.Type: ApplicationFiled: November 24, 2017Publication date: May 31, 2018Applicant: KROHNE Messtechnik GmbHInventors: Holger Glasmachers, Philipp Mertmann
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Publication number: 20180120226Abstract: A method for determining a property of a medium, wherein an excitation signal is generated and transmitted into the medium, a measuring signal is generated from the excitation signal transmitted into the medium, the measuring signal is measured, an amplitude of the excitation signal and an amplitude of the measuring signal are determined, and the property of the medium is determined using the amplitude of the excitation signal and the amplitude of the measuring signal. To provide a method in which the accuracy of determination of the property of the medium is improved, the amplitude of the excitation signal is determined by digitizing the excitation signal and applying a lock-in method to the digitized excitation signal and determining the amplitude of the measuring signal by digitizing the measuring signal and applying the lock-in method to the digitized measuring signal.Type: ApplicationFiled: November 1, 2017Publication date: May 3, 2018Applicant: KROHNE Messtechnik GmbHInventors: Holger Glasmachers, Edin Andelic, Andreas Schwaner
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Publication number: 20180088065Abstract: A conductivity meter for measuring an electrical conductivity of a liquid medium having a housing, a conductive first measuring cell and a control device for controlling the first measuring cell, wherein the first measuring cell has a first conductivity measuring range, a first electrode and a second electrode, and wherein the first measuring cell and the control device are arranged at the housing. To provide a conductivity meter for measuring an electrical conductivity of a liquid medium, whose conductivity measuring range is increased, the conductivity meter has a second measuring cell with a second conductivity measuring range, that the second measuring cell is arranged at the housing, and that the control device is designed for controlling the second measuring cell.Type: ApplicationFiled: September 29, 2017Publication date: March 29, 2018Applicant: KROHNE Messtechnik GmbHInventors: Holger Glasmachers, Christoph Schmits
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Publication number: 20170317982Abstract: An electronic device has an operational unit for communication. The operational unit is provided with a first interface unit for secure communication and a second interface unit for insecure communication. To provide electronic devices, in which the manipulation of information that is transmitted via the first interface unit is made at least more difficult, the operational unit is separated into a secure operational block and an insecure operation block and has only a first transmitter unit, the first interface unit being arranged in the secure operational block and the second interface unit being arranged in the insecure operational block, and the first transmitter unit is designed for transmitting first signals only from the secure operational block via a first signal path to the insecure operational block.Type: ApplicationFiled: May 1, 2017Publication date: November 2, 2017Applicant: KROHNE Messtechnik GmbHInventor: Holger GLASMACHERS