Abstract: A spectroscopic sensor assembly for detecting at least one predefined analyte constituent of a measurement fluid, the sensor assembly including a sensor housing; a radiation source; a detector device; a barrier assembly, which is transmissive for measurement radiation and is impermeable to the analyte constituent; a polymer matrix, which absorbs and releases the analyte constituent; a reflector assembly, which has a signal side facing the polymer matrix and facing the barrier assembly; wherein the reflector assembly has at least one passage extending through the reflector assembly, through which passage the analyte constituent is exchanged between a measurement environment and the polymer matrix, which polymer matrix is located on the signal side of the reflector assembly; and wherein the reflector assembly reflects incident measurement radiation back toward the apparatus portion; the sensor assembly having a spacing means different from the polymer matrix, the spacing means being designed to prevent the refl

Abstract: A sensor arrangement includes a reaction subassembly having a housing and a detector subassembly. The housing is a layered component arrangement encompassing a luminophore-containing reaction laminate excitable, by irradiation with a first electromagnetic radiation of a first wavelength, to emit a second electromagnetic radiation of a second wavelength different from the first wavelength; and a temperature-detection laminate emitting an infrared radiation. The housing includes an opening for introducing a fluid, a reaction window and a temperature-sensing window. The reaction window transmits the first and second electromagnetic radiation, and the temperature-sensing window is penetrable by infrared radiation.

Abstract: Described is an oxygen permeable layer for detection of molecular oxygen, wherein the layer has a carrier material in which at least one particle is comprised, wherein the carrier material is polyvinylidene fluoride or a copolymer of polyvinylidene fluoride, and the particle comprises a polymer or a copolymer, wherein the polymer or copolymer of the particle has a chemically covalently bonded indicator compound for detection of molecular oxygen. In addition, a multilayer system for detection of molecular oxygen is described. Also described are a method for producing the layer, and the use of the layer or of the multilayer system for detection of molecular oxygen.

Abstract: A method is provided for degradation-compensated evaluation of detection signals of a sensor arrangement operating on the principle of luminescence quenching, which arrangement has a luminophore that degrades over time, an excitation radiation source, and at least one optical sensor. The luminophore radiates, in accordance with a response characteristic of the sensor arrangement, in reaction to irradiation with a predefined modulated excitation radiation and as a function of the extent of an interaction of the luminophore with a quencher substance that quenches the luminescence of the luminophore. A response radiation is detected by the at least one optical sensor. The sensor arrangement outputs a detected intensity value representing an intensity of the response radiation and a detected phase value representing a phase difference of the response radiation with respect to the modulation of the excitation radiation.

Abstract: A sensor arrangement includes a reaction subassembly having a housing and a detector subassembly. The housing is a layered component arrangement encompassing a luminophore-containing reaction laminate excitable, by irradiation with a first electromagnetic radiation of a first wavelength, to emit a second electromagnetic radiation of a second wavelength different from the first wavelength; and a temperature-detection laminate emitting an infrared radiation. The housing includes an opening for introducing a fluid, a reaction window and a temperature-sensing window. The reaction window transmits the first and second electromagnetic radiation, and the temperature-sensing window is penetrable by infrared radiation.

Abstract: A pH combination electrode includes inner and outer tubes, working and reference electrodes, and a hydrogel diaphragm between the tubes. A seal is disposed inside the inner tube closer to a first inner tube end than to the second inner tube end. An extended reference chamber is formed inside the inner tube between the seal and the second inner tube end. A first conductive fluid is contained in the inner tube between the seal and the first inner tube end. A second conductive fluid is contained in the extended reference chamber and in a reference chamber formed between the inner and outer tubes. A through-hole in the inner tube allows the second conductive fluid to flow between the reference chamber and the extended reference chamber. The working electrode extends into the inner tube, through the seal and into the first conductive fluid. The reference electrode contacts the second conductive fluid.

Abstract: A sensor arrangement (50) encompasses a reaction subassembly (72) having a housing (52) and having a detector subassembly (54), there being provided in the housing (52) a layered component arrangement (60) that encompasses: a luminophore-containing reaction laminate (62) that is excitable, by irradiation with a first electromagnetic radiation of a first wavelength, to emit a second electromagnetic radiation of a second wavelength different from the first wavelength; and a temperature-detection laminate (64) emitting an infrared radiation; the housing (52) comprising an opening (78a, 78b) through which a fluid is introducible; the housing (52) comprising a reaction window (66a) and a temperature-sensing window (66b) arranged physically remotely therefrom; the one reaction window (66a) transmitting the first (E1) and the second electromagnetic radiation (E2); and the temperature-sensing window (66b) being penetrable by infrared radiation (I); the detector subassembly (54) encompassing: a radiation source (

Abstract: A method is provided for degradation-compensated evaluation of detection signals of a sensor arrangement operating on the principle of luminescence quenching, which arrangement has a luminophore that degrades over time, an excitation radiation source, and at least one optical sensor. The luminophore radiates, in accordance with a response characteristic of the sensor arrangement, in reaction to irradiation with a predefined modulated excitation radiation and as a function of the extent of an interaction of the luminophore with a quencher substance that quenches the luminescence of the luminophore. A response radiation is detected by the at least one optical sensor. The sensor arrangement outputs a detected intensity value representing an intensity of the response radiation and a detected phase value representing a phase difference of the response radiation with respect to the modulation of the excitation radiation.

Abstract: A device for monitoring a biological process in a liquid medium includes a wall portion, a silanization layer and a sensor arrangement. The device attaches to a container of a bioreactor and can be used with disposable bioreactors. The wall portion is adapted to retain the liquid medium during operation of the bioreactor. A through-hole is disposed in the wall portion. A silanization layer covers the surface encircling the through-hole and the wall portion between the liquid medium and the wall portion. The sensor arrangement includes a glass layer, a substrate and an electrode. The glass layer is bonded by an adhesive to the silanization layer so as to cover the through-hole. The electrode is mounted on the substrate and measures electrical conductivity through the liquid medium. The sensor arrangement also includes an optical sensor that detects electromagnetic radiation that passes from the liquid medium through the glass layer.

Abstract: A sensor arrangement (50) encompasses a reaction subassembly (72) having a housing (52) and having a detector subassembly (54), there being provided in the housing (52) a layered component arrangement (60) that encompasses: a luminophore-containing reaction laminate (62) that is excitable, by irradiation with a first electromagnetic radiation of a first wavelength, to emit a second electromagnetic radiation of a second wavelength different from the first wavelength; and a temperature-detection laminate (64) emitting an infrared radiation; the housing (52) comprising an opening (78a, 78b) through which a fluid is introducible; the housing (52) comprising a reaction window (66a) and a temperature-sensing window (66b) arranged physically remotely therefrom; the one reaction window (66a) transmitting the first (E1) and the second electromagnetic radiation (E2); and the temperature-sensing window (66b) being penetrable by infrared radiation (I); the detector subassembly (54) encompassing: a radiation source (

Abstract: A reference electrode assembly for an electrochemical sensor, in particular for a potentiometric sensor, comprising a reference half-cell space having a reference electrode provided therein, the reference half-space comprising a storage space in which a reference electrolyte is provided at any rate in a storage state of the reference electrode assembly, the reference half-cell space further comprising a lock space that is permeable at any rate with respect to the passage of reference electrolyte into an environment of the reference half-cell space, the storage space, in the storage state of the reference electrode assembly, being separated from the lock space with respect to the passage of reference electrolyte, the reference electrode assembly being designed such that a connection permeable for the passage of reference electrolyte from the storage space to the lock space can be created between the storage space and the lock space in order to transfer the reference electrode assembly from the storage state to

Abstract: The invention relates to a sensing unit (1) comprising a housing (2) that has a first housing opening which can be oriented towards a medium (M) to be analyzed, and a second housing opening on which at least one means for detachably rigidly connecting to a sensor shaft or sensor housing are arranged, or may be arranged, on the inner and/or outer side; at least one sensor element (3) that is arranged in the housing (2) and comprises indicators and, optionally, indicator protectors, said sensor element (3) having a first side facing the first housing opening and a second side lying opposite the first housing opening; and at least one protector element (4) which is arranged in the region of the first housing opening between the at least one sensor element (3) and the medium (M) which surrounds the sensing unit (1), particularly in the region of said housing opening, such that the sensor element (3) does not come into direct contact with the medium (M).

Abstract: The invention relates to an optical sensor element, comprising indicators, selected from luminescence-active means that are of the same type or different, and indicator protectors, and to a sensor, comprising at least one such sensor element, an energy source that excites the luminescence emission of the indicators, and a detector unit, wherein the sensor element or sensor is suitable for detecting molecular oxygen in a gaseous or liquid medium and/or for determining the molecular oxygen content of a gaseous or liquid medium and at least one layer of the sensor element bearing the indicator protectors is designed in such a way that the diffusion rate of the molecular oxygen formed on the indicator protectors by means of the reduction of strong oxidants back into the medium is greater than the diffusion rate of molecular oxygen from the medium in the direction of the at-least-one layer bearing the indicator molecules.

Abstract: A reference electrode assembly for an electrochemical sensor, in particular for a potentiometric sensor, comprising a reference half-cell space having a reference electrode provided therein, the reference half-space comprising a storage space in which a reference electrolyte is provided at any rate in a storage state of the reference electrode assembly, the reference half-cell space further comprising a lock space that is permeable at any rate with respect to the passage of reference electrolyte into an environment of the reference half-cell space, the storage space, in the storage state of the reference electrode assembly, being separated from the lock space with respect to the passage of reference electrolyte, the reference electrode assembly being designed such that a connection permeable for the passage of reference electrolyte from the storage space to the lock space can be created between the storage space and the lock space in order to transfer the reference electrode assembly from the storage state to

Abstract: The invention relates to an optical sensor element, comprising indicators (2), selected from luminescence-active means that are of the same type or different, and indicator protectors (1), and to a sensor, comprising at least one such sensor element, an energy source that excites the luminescence emission of the indicators, and a detector unit, wherein the sensor element or sensor is suitable for detecting molecular oxygen in a gaseous or liquid medium and/or for determining the molecular oxygen content of a gaseous or liquid medium and at least one layer of the sensor element bearing the indicator protectors is designed in such a way that the diffusion rate of the molecular oxygen formed on the indicator protectors by means of the reduction of strong oxidants back into the medium is greater than the diffusion rate of molecular oxygen from the medium in the direction of the at-least-one layer bearing the indicator molecules.

Abstract: The invention relates to an optical sensor element, comprising indicators, selected from luminescence-active means that are of the same type or different, and indicator protectors, and to a sensor, comprising at least one such sensor element, an energy source that excites the luminescence emission of the indicators, and a detector unit, wherein the sensor element or sensor is suitable for detecting molecular oxygen in a gaseous or liquid medium and/or for determining the molecular oxygen content of a gaseous or liquid medium and at least one layer of the sensor element bearing the indicator protectors is designed in such a way that the diffusion rate of the molecular oxygen formed on the indicator protectors by means of the reduction of strong oxidants back into the medium is greater than the diffusion rate of molecular oxygen from the medium in the direction of the at-least-one layer bearing the indicator molecules.

Abstract: The invention relates to a sensing unit (1) comprising a housing (2) that has a first housing opening which can be oriented towards a medium (M) to be analysed, and a second housing opening on which at least one means for detachably rigidly connecting to a sensor shaft or sensor housing are arranged, or may be arranged, on the inner and/or outer side; at least one sensor element (3) that is arranged in the housing (2) and comprises indicators and, optionally, indicator protectors, said sensor element (3) having a first side facing the first housing opening and a second side lying opposite the first housing opening; and at least one protector element (4) which is arranged in the region of the first housing opening between the at least one sensor element (3) and the medium (M) which surrounds the sensing unit (1), particularly in the region of said housing opening, such that the sensor element (3) does not come into direct contact with the medium (M).

Abstract: The invention relates to a reaction vessel with a sensor unit. The reaction vessel comprising a reaction space configured to be connected with the sensor unit that comprises at least one sensor device configured to be calibrated, at least one compartment containing a calibrating agent, and a housing. The sensor unit is arranged to calibrate the at least one sensor device by contact with the calibrating agent before chemical or physical parameters of a measurement substance are measured, wherein the at least one sensor device is further configured such that the relative movement between the at least one sensor device and the at least one compartment is irreversible. The at least one sensor device is movable relative to the at least one compartment from an initial position into a measurement readiness position. The reaction vessel and the sensor unit can be sterilized or are sterilized jointly.

Abstract: The present invention relates to a calibration method of a sensor unit connected to a reaction vessel, wherein the sensor unit comprises at least one sensor device configured to be calibrated, at least one compartment containing a calibrating agent, and a housing. The method comprising inserting a sensitive element of the at least one sensor device into a compartment of the sensor unit containing a calibrating agent, withdrawing the sensitive element from the compartment; inserting the sensitive element into the reaction vessel and locking the sensor device in position, wherein the steps of the method are irreversible.

Abstract: The invention relates to an optical sensor element, comprising indicators (2), selected from luminescence-active means that are of the same type or different, and indicator protectors (1), and to a sensor, comprising at least one such sensor element, an energy source that excites the luminescence emission of the indicators, and a detector unit, wherein the sensor element or sensor is suitable for detecting molecular oxygen in a gaseous or liquid medium and/or for determining the molecular oxygen content of a gaseous or liquid medium and at least one layer of the sensor element bearing the indicator protectors is designed in such a way that the diffusion rate of the molecular oxygen formed on the indicator protectors by means of the reduction of strong oxidants back into the medium is greater than the diffusion rate of molecular oxygen from the medium in the direction of the at-least-one layer bearing the indicator molecules.