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公开(公告)号：US20230118150A1
公开(公告)日：2023-04-20
申请号：US18047833
申请日：2022-10-19
发明人： Thomas Wilhelm , Andreas Löbbert , Matthäus Speck
IPC分类号： G01N27/30 , G01N27/416
摘要： A sensor for measuring a pH value of a measuring liquid includes: a sensor element including a surface adapted to the measuring liquid; a radiation source configured to emit electromagnetic transmission radiation to the sensor element, wherein at least a portion of the transmission radiation is converted into measurement radiation by reflection and/or scattering in a region of the surface; a radiation receiver configured to receive the measurement radiation and convert it into electrical signals; and a measuring circuit configured to determine the pH value from signals, wherein a wavelength of at least a portion of the transmission radiation generates charge carriers in at least a surface region or a near-surface region of the surface of the sensor element as to effect a photoelectrochemical reaction with formation of hydrogen at the surface.
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公开(公告)号：US20230078394A1
公开(公告)日：2023-03-16
申请号：US17931207
申请日：2022-09-12
发明人： Stefan Paul , Thomas Nagel
IPC分类号： G01R27/22
摘要： The present disclosure relates to a method for determining a conductivity value of a measurement medium using a conductivity sensor. The method includes providing a conductivity sensor with at least one transmitting unit, at least one receiving unit, and a control unit having a storage module, and transmitting a stimulation signal into the measurement medium at the transmitting unit by the control unit. The method also includes receiving a detection signal at the receiving unit, determining a signal quality indicator by the control unit based on the detection signal, and determining a conductivity signal corresponding to the detection signal. The method further includes storing the conductivity signal, determining a dynamic factor by the control unit based on the conductivity signal, filtering the conductivity signal using a filter function depending on the determined signal quality indicator and the dynamic factor, and outputting a filtered measured value of the filtered conductivity signal.
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公开(公告)号：USD976725S1
公开(公告)日：2023-01-31
申请号：US29767733
申请日：2021-01-25
设计人： Holger Lippert , Thomas Pfauch
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公开(公告)号：USD976133S1
公开(公告)日：2023-01-24
申请号：US29767711
申请日：2021-01-25
设计人： Holger Lippert , Thomas Pfauch
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公开(公告)号：US11536661B2
公开(公告)日：2022-12-27
申请号：US16993823
申请日：2020-08-14
发明人： Andreas Löbbert , Alexander Hörig
摘要： The present disclosure discloses an optochemical sensor for determining a measurand correlating with a concentration of an analyte in a measuring fluid, comprising: a housing having an immersion region configured for immersing in the measuring fluid; a removable cap having a sensor spot, the removable cap removably arranged at the immersion region of the housing, wherein the sensor spot is disposed on a circumferential face; a radiation source disposed in the housing for radiating excitation radiation into the removable cap, wherein a deflection module is disposed in the removable cap as to deflect excitation radiation radiated into the removable cap; a radiation receiver disposed in the housing for receiving received radiation emitted by the sensor spot; and a sensor circuit disposed in the housing and configured to control the radiation source, receive signals of the radiation receiver, and generate output signals based on the signals of the radiation receiver.
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公开(公告)号：US11486855B2
公开(公告)日：2022-11-01
申请号：US16695761
申请日：2019-11-26
发明人： Andreas Löbbert , Michael Hanko
IPC分类号： G01N27/40 , G01N27/333 , G01N27/36 , G01N27/416
摘要： The present disclosure relates to an electrochemical sensor for determining a measurand correlating with a concentration of an analyte in a measuring fluid, comprising: a sensor membrane designed to be in contact with the measuring fluid for detecting measured values of the measurand; a probe housing which has at least one immersion region designed for immersion into the measuring fluid, wherein the sensor membrane is arranged in the immersion region of the probe housing; and a measurement circuit which is at least partially contained in the probe housing and is designed to generate and output a measurement signal dependent on the measurand, wherein the sensor membrane contains an optically detectable substance for marking the sensor membrane.
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公开(公告)号：US11460429B2
公开(公告)日：2022-10-04
申请号：US16103816
申请日：2018-08-14
发明人： Holm Petzold , Jens Vettermann , Erik Hennings
IPC分类号： G01N27/333 , G01N27/30 , G01N27/31
摘要： The present disclosure discloses a method for producing an ISE half-cell, including the steps of: immersing a first end of a hollow body into a membrane solution comprising at least one solvent and an ion-specific ionophore; removing the hollow body from the membrane solution; drying the hollow body and evaporating the solvent from the membrane solution, whereby an ion-selective membrane is created at the immersed end of the hollow body; and completing the hollow body to make an ISE half-cell. The present disclosure also discloses an ISE half-cell that is produced according to such a method. The present disclosure further discloses a sensor and a multiparameter sensor comprising several such ISE half-cells.
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公开(公告)号：US20220307896A1
公开(公告)日：2022-09-29
申请号：US17656550
申请日：2022-03-25
发明人： Marvin Buchfink
IPC分类号： G01H11/06 , H01L41/053 , H01L41/08 , H01L41/23 , G01R27/26
摘要： A method for the quality inspection of an ultrasonic transducer and an ultrasonic sensor comprising an ultrasonic transducer and carrying out the quality inspection method are described. The ultrasonic transducer comprises a housing having an electrically conductive layer extending at least over an inner surface of a housing wall of the housing, and a piezoelectric transducer arranged in the housing, the end face of which equipped with an electrode is connected to the electrically conductive layer by means of a dielectric coupling layer. According to the method, at least one quality inspection of the ultrasonic transducer is carried out, in which a capacitance of a capacitor comprising the electrode, the electrically conductive layer serving as the counter electrode, and the dielectric coupling layer as a dielectric is measured and a quality defect of the ultrasonic transducer is determined if the measured capacitance is outside a specified capacitance range.
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公开(公告)号：US11428610B2
公开(公告)日：2022-08-30
申请号：US17128861
申请日：2020-12-21
发明人： Thomas Pfauch , Jens Bindrich , Angela Eubisch , Arne Kleinpeter , Carsten Schippan , Jörg Uhle , Melanie Ullrich
摘要： The present disclosure discloses a retractable assembly for immersion, flow and mounted measuring systems in analytical process technology for receiving a sensor which is designed to measure at least one measurement variable of a medium in a container, comprising: a substantially hollow-cylindrical housing comprising a housing wall, a service chamber which is formed in the interior in a region of the housing, and a dip tube which is axially movable in the housing between a service position moved out of the medium and a process position moved into the medium, the dip tube being positioned in the service chamber in the service position, the sensor being receivable in the dip tube, wherein at least one optical window is arranged in the housing wall in the region of the service chamber.
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公开(公告)号：US20220196627A1
公开(公告)日：2022-06-23
申请号：US17645158
申请日：2021-12-20
IPC分类号： G01N33/18
摘要： A TOC analyzer for determining a carbon content of a sample includes: a processing unit for removing carbon dioxide gas from the carrier gas before the oxidation of the sample, wherein the processing unit has a binder for binding the carbon dioxide gas from the carrier gas, wherein a defined water content is provided within the binder, wherein the processing unit is configured for moistening the binder by means of water vapor contained in the carrier gas; a condensation unit for condensing the water vapor resulting from the vaporization and/or oxidation of the sample to form a condensate, wherein the condensation unit has an outlet for the condensate toward a moistening unit; and the moistening unit for moistening the carrier gas by means of the condensate. A method for moistening a binder using such a TOC analyzer is further disclosed.
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