Abstract: A device for analyzing a liquid or pasty sample, which is provided in the form of drops, using nuclear spin resonances of the sample includes: a first plate and a second plate; a mechanism via which a measuring position and a recording position can be set, wherein the first plate and the second plate are arranged substantially parallel to each other in the measuring position, wherein a spacer sets a defined spacing between the first plate and the second plate; a sensor unit with a sensor component, which forms at least one sub-region of the first plate and/or the second plate and at least partly contacts the sample, wherein the sensor unit is designed to detect a variable which is influenced by the nuclear magnetic resonances of the sample; and an analysis unit.

Abstract: A method for distinguishing between the presence of a foreign body and a gas bubble in a flowable medium in a pipeline or a container includes evaluating received microwave signals, wherein mechanical vibrations are introduced into the medium by means of which a gas bubble present in the medium is set into vibration. A gas bubble is detected only in the event that when mechanical vibrations are introduced and the received microwave signals or the value derived therefrom is/are modulated; otherwise, a foreign body is detected. Also disclosed is a system which is suitable for carrying out the method according to the present disclosure.

Abstract: The present disclosure relates to a system for identifying the presence of a foreign body in a flowable medium in a pipeline. The system comprises a pipeline having a line inlet section and a choke section and also comprises a first transmitting/receiving unit for the line inlet section and a second transmitting/receiving unit for the line outlet section and a superordinate unit, which system is designed to ascertain the presence of a foreign body in the medium on the basis of at least one comparison between the mean permittivity (epsilon_m,3) in the choke section and the mean permittivity (epsilon_m,1) in the line inlet section.

Abstract: A method for monitoring the condition of a coil, wherein the coil is part of a device for determining at least one process variable of a medium in a container, includes applying an electrical excitation signal to the coil and receiving an electrical reception signal from the coil, determining a first value for the reception signal at a first predefinable measurement time, comparing the first value for the reception signal at the first measurement time with a reference value, and determining a condition indicator for the coil on the basis of the comparison. Disclosed also is a device that is designed for carrying out the disclosed method.

Abstract: A sensor device for determining and/or monitoring a process variable of a medium in a container includes: a crystal body having at least one defect; and a magnetic field device for generating a magnetic field, the magnetic field device arranged such that a magnetic field can be generated in the region of the crystal body and in the region of the medium located within the container, so that a change of the magnetic field in the region of the crystal body is amplified, wherein the crystal body and the magnetic field device are arranged from the outside on a wall of the container. A method for determining and/or monitoring a process variable of a medium in a container using the sensor device is also disclosed.

Abstract: The present disclosure relates to a pH-sensor for determining and/or monitoring a pH value of a medium, having a sensor unit with a wall in contact with the medium, and at least one pH-sensitive material, which has at least one spin state that changes as a function of a pH value. The at least one pH-sensitive material is arranged in or on a region of the wall in such a way that the at least one spin state is subjected to a change in the pH value of the medium. The pH-sensor also includes a spin-sensitive unit, which is configured to detect a variable associated with the at least one spin state, wherein the spin-sensitive unit is arranged in an environment of the at least one pH-sensitive material such that the spin-sensitive unit is subjected to a change in the spin state of the at least one pH-sensitive material.

Abstract: A sensor apparatus for determining and/or monitoring a process variable of a medium in a containment includes: a crystal body including at least one defect; a magnetic field system for producing a magnetic field in the region of the crystal body and in the region of the medium within the containment, wherein the crystal body and the magnetic field system are arrangeable from the outside at a wall of the containment; a detection unit for detecting a magnetic field-dependent, fluorescent signal from the crystal body, wherein the detection unit has an excitation unit for optical exciting of the defect and a detector for detecting the fluorescent signal; and an evaluation unit for ascertaining at least one piece of information concerning the process variable based on the fluorescent signal.

Abstract: A method for monitoring the condition of a coil, wherein the coil is part of a device for determining at least one process variable of a medium in a container, includes applying an electrical excitation signal to the coil and receiving an electrical reception signal from the coil, determining a first value for the reception signal at a first predefinable measurement time, comparing the first value for the reception signal at the first measurement time with a reference value, and determining a condition indicator for the coil on the basis of the comparison. Disclosed also is a device that is designed for carrying out the disclosed method.

Abstract: The present disclosure relates to a pH-sensor for determining and/or monitoring a pH value of a medium, having a sensor unit with a wall in contact with the medium, and at least one pH-sensitive material, which has at least one spin state that changes as a function of a pH value. The at least one pH-sensitive material is arranged in or on a region of the wall in such a way that the at least one spin state is subjected to a change in the pH value of the medium. The pH-sensor also includes a spin-sensitive unit, which is configured to detect a variable associated with the at least one spin state, wherein the spin-sensitive unit is arranged in an environment of the at least one pH-sensitive material such that the spin-sensitive unit is subjected to a change in the spin state of the at least one pH-sensitive material.

Abstract: Using and updating topological relationships amongst a set of nodes in event clustering is disclosed. A current event occurs on a current node. A first cluster of related events includes a first event, occurring on a first node, that is time-correlated with the current event. The first cluster does not include any event that is topologically-correlated with the current event based on the existing set of topological relationships. A level of interdependence is determined between (a) occurrence of events on the current node and (b) occurrence of events on the first node. Based on the level of interdependence, the current event is added to the first cluster. Further, an event-based topological relationship between the first node and the second node is added to the set of topological relationships. Subsequently, clustering for new events may be determined based on the event-based topological relationship between the first node and the second node.

Abstract: Using and updating topological relationships amongst a set of nodes in event clustering is disclosed. A current event occurs on a current node. A first cluster of related events includes a first event, occurring on a first node, that is time-correlated with the current event. The first cluster does not include any event that is topologically-correlated with the current event based on the existing set of topological relationships. A level of interdependence is determined between (a) occurrence of events on the current node and (b) occurrence of events on the first node. Based on the level of interdependence, the current event is added to the first cluster. Further, an event-based topological relationship between the first node and the second node is added to the set of topological relationships. Subsequently, clustering for new events may be determined based on the event-based topological relationship between the first node and the second node.