摘要:
The invention relates to A sensor end module, comprising: a sensor cap having a first connecting element and a sensorially active element for contact with a medium; and a memory module, comprising: a housing having a second connecting element, wherein the second connecting element enters into a shape- and/or force interlocking connection with the first connecting element; a memory element, wherein the memory element contains information concerning the sensorially active element the memory element is arranged in or on the housing; a first communication interface for sending and/or receiving information and/or data, and wherein the first communication interface is in electrical contact with the memory element. Furthermore, the invention relates to a sensor and a measuring system.
摘要:
An ion-sensitive sensor with an EIS structure includes: a semiconductor substrate, on which a layer of a substrate oxide 103 is produced; an adapting or matching layer, which is prepared on the substrate oxide; a chemically stable intermediate insulator, which is deposited on the adapting or matching layer; and a sensor layer, which comprises a tantalum oxide or a tantalum oxynitride, and which is applied on the intermediate insulator; wherein the intermediate insulator comprises hafnium oxide or zirconium oxide or a mixture of zirconium oxide and hafnium oxide, and wherein the adapting or matching layer differs in its chemical composition and/or in its structure from the intermediate insulator and from the substrate oxide.
摘要:
A method, and a measuring point for performing the method, for measuring at least one physical and/or chemical, process variable of a medium contained in a single use container. A single use sensor is connected with the single use container. The single use sensor with the single use container is sterilized by radiation, especially beta or gamma radiation. An electronics unit is connected with the single use sensor, and the electronics unit is connected with at least one superordinated system via at least one interface. The electronics unit and/or the single use sensor are/is supplied with energy, and measurement data of the single use sensor are registered. The measurement data are processed by the electronics unit and/or the superordinated system, data, including measurement data, are transmitted to the superordinated system and/or received from the superordinated system, and, after termination of one or more measuring cycles, the electronics unit is released from the single use sensor.
摘要:
An apparatus and method for cleaning deposits and accretions from an end plate of a sensor body, for accommodating a measuring apparatus for determining one or more physical and/or chemical, process variables. The sensor body is sealed against penetration by liquid and a wiper is provided having a wiper blade for cleaning the end plate. The wiper is arranged as a subcomponent on a peripheral, appended module, wherein geometries of the wiper and the peripheral, appended module are so embodied that the wiper in the case of rotary movement from a rest position into a cleaning position, with the lower edge of the wiper blade being flush with the upper edge of the end plate, in the cleaning position, and in order that the wiper cleans the end plate by contact of the wiper blade with the end plate, and the wiper then returns to the rest position.
摘要:
A method for determining residual coupling of an inductive, conductivity sensor, in which the conductivity sensor is surrounded by a measured medium and an equivalent impedance of the medium is calibrated with a variable compensation impedance. The variable compensation impedance and the equivalent impedance of the medium act on a measuring coil of the conductivity sensor with a phase shift of 180°. In order to be able to perform a measuring of the residual coupling with a high accuracy of measurement at any time during operation of the conductivity sensor, the variable compensation impedance is varied until an output voltage of the measuring coil of the conductivity sensor assumes a minimum voltage; wherein the minimum voltage corresponds to the residual coupling of the inductive, conductivity sensor.
摘要:
A combination electrode, including: A first tube; a measuring membrane, which sealedly closes the first tube to form a measuring chamber; a second tube, which surrounds the first tube and is connected borderingly with the first tube to form an annular reference chamber; a buffer solution located in the measuring chamber; an electrolyte solution located in the reference chamber; a first tapping electrode in contact with the buffer solution; and a second tapping electrode in contact with the electrolyte; wherein, additionally, arranged in the reference chamber is an axially shiftable, annular, sealing element, which bounds the volume occupied by the electrolyte solution, the sealing element is biased by means of an electrically conductive, elastic, deformation element, which surrounds the first tube, and the second tapping electrode is electrically connected with the deformation element, in order to tap the potential of the second electrode via the deformation element.
摘要:
In a method for determining a measured variable of a measured medium, wherein the measured medium is brought in contact with an indicator or an indicator mixture, whose absorption spectrum has a first, and a second, wavelength range, which essentially do not overlap,a first light source (6) is activated for emitting a first light signal with a wavelength from the first wavelength range and a second light source (7) is activated for emitting a second light signal with a wavelength from the second wavelength range, wherein the intensity of the first light signal is modulated by a first and the intensity of the second light signal by a second, periodic signal, wherein at least a part of the first light signal and at least a part of the second light signal propagate as first and second measurement light signals along a measuring path and are transformed on the measuring path by optical interaction with the indicator or the indicator mixture to transformed measurement light signals, and wherein a total intensity of the transformed first and second measurement light signals is registered, wherein the first periodic signal has a first phase difference relative to the second, periodic signal, and a second phase difference between the total intensity of the transformed first and second measurement light signals and the first, or the second, periodic signal is ascertained, and the measured variable is determined with application of the second phase difference.
摘要:
A arrangement for calibrating at least two sensors in parallel, including a data processing unit, especially a measurement transmitter for a multisensor system or a computer, wherein the data processing unit has an interface, via which the at least two sensors are connected via separate transmission lines for transmission of data, and wherein the data processing unit is embodied to perform calibrations of the at least two sensors in parallel and independently of one another.
摘要:
A retractable assembly, comprising: a housing; an immersion tube, which is axially movable between a service position and a process position. A first inlet facing away from the medium and a second inlet facing the medium. The immersion tube is moved from the service position to the process position by supplying the first inlet with energy, and the immersion tube is moved from the process position to the service position by supplying the second inlet with energy. A first mechanical blocking member shifts against a spring bias, and the blocking member engages in a first groove on the immersion tube. The first groove is located in the movement direction. The spring bias is so embodied that supplying the second inlet with energy releases the blocking member from the groove, whereby movement of the immersion tube from process position to service position becomes possible.
摘要:
A retractable assembly and a sealing system, the sealing system comprising: an essentially hollow, cylindrical housing with an inner space and a peripheral groove open to the inner space in the housing. The peripheral groove defines a plane in the housing and the normal of the plane is parallel to the longitudinal axis of the housing. The groove includes at least one, preferably two, extension spaces expanding the groove. The extension space is arranged on the side of the groove facing away from the inner space. An annular seal corresponding to the groove is arranged in the groove. The annular seal is formed of at least a first section facing the inner space and a second section facing away from the inner space.