Abstract: The present disclosure relates to an ion-selective electrode for an electrochemical sensor for determining a measurand representing a concentration of an analyte in a measuring medium, including a probe body made of a first material and a sensor element including a base body made of a second material different from the first material and an ion-selective layer arranged on the base body. The probe body is connected to the base body by way of a liquid-tight joint, where the joint is formed by a receptacle, serving as a first joining partner, and a joining section protruding into the receptacle, serving as a second joining partner.

Abstract: The present disclosure relates to an ion-selective electrode for an electrochemical sensor for determining a measurand representing a concentration of an analyte in a measuring medium, including a probe body made of a first material and a sensor element including a base body made of a second material different from the first material and an ion-selective layer arranged on the base body. The probe body is connected to the base body by way of a liquid-tight joint, where the joint is formed by a receptacle, serving as a first joining partner, and a joining section protruding into the receptacle, serving as a second joining partner.

Abstract: An electrochemical, measuring probe, for measuring a chemical or physical, measured variable, of a measured medium, wherein the measuring probe comprises: at least one measuring half cell and at least one reference half cell, and the reference half cell includes: a housing of electrically insulating material, in which a reference electrolyte chamber containing a liquid, reference electrolyte is formed, and which has in a housing wall a diaphragm permeable for the reference electrolyte for providing electrolytic contact between the reference half cell and the measured medium; a potential indicating element extending into the reference electrolyte; and a supply opening opening into the reference electrolyte chamber for supply of reference electrolyte into the reference electrolyte chamber.

Abstract: A sensor for registering analyte concentration includes: a housing; arranged within the housing, a sensor element, which has a front surface pressed toward a housing wall of the housing, and the sensor element has at least one contact element for electrical contacting accommodated within the housing, an inner electrolyte, which is in contact with a medium surrounding the housing via an electrochemical, liquid junction arranged in a housing wall, and a reference electrode extending into the inner electrolyte, wherein there is arranged within the housing a flexible circuit card, which includes at least a first conductive trace, which is connected with the at least one contact element of the sensor element, and at least a second conductive trace, which serves as potential sensing element of the reference electrode.

Abstract: A measuring apparatus, especially a measuring apparatus suitable for application in industrial process measurements technology for making measurements of physical or chemical, measured variables in a closed process container under increased pressure, comprising: a measuring probe, which has a probe shaft, especially a cylindrical probe shaft; and a securement apparatus to affix the measuring probe at a measuring point, wherein the securement apparatus comprises a sleeve, which at least sectionally accommodates probe shaft, wherein the measuring probe has a securement collar connected to the probe shaft; the securement collar is held, especially shape interlocked, between a coupling jacket releasably secured in sleeve and a counterbearing formed within sleeve, characterized in that, a first abutment surface is formed within the coupling jacket, and a second abutment surface, which lies opposite the first abutment surface, is formed on measuring probe.

Abstract: An electrochemical half cell for application in an electrochemical sensor, wherein a fill electrolyte of the half cell is in contact with an external medium via a liquid junction, characterized in that the liquid junction is controllable as regards its permeability and/or its flow.

Abstract: A sensor for registering analyte concentration includes: a housing; arranged within the housing, a sensor element, which has a front surface pressed toward a housing wall of the housing, and the sensor element has at least one contact element for electrical contacting accommodated within the housing, an inner electrolyte, which is in contact with a medium surrounding the housing via an electrochemical, liquid junction arranged in a housing wall, and a reference electrode extending into the inner electrolyte, wherein there is arranged within the housing a flexible circuit card, which includes at least a first conductive trace, which is connected with the at least one contact element of the sensor element, and at least a second conductive trace, which serves as potential sensing element of the reference electrode.

Abstract: A measuring apparatus, especially a measuring apparatus suitable for application in industrial process measurements technology for making measurements of physical or chemical, measured variables in a closed process container under increased pressure, comprising: a measuring probe, which has a probe shaft, especially a cylindrical probe shaft; and a securement apparatus to affix the measuring probe at a measuring point, wherein the securement apparatus comprises a sleeve, which at least sectionally accommodates probe shaft, wherein the measuring probe has a securement collar connected to the probe shaft; the securement collar is held, especially shape interlocked, between a coupling jacket releasably secured in sleeve and a counterbearing formed within sleeve, characterized in that, a first abutment surface is formed within the coupling jacket, and a second abutment surface, which lies opposite the first abutment surface, is formed on measuring probe.

Abstract: The invention relates to an electrochemical half cell for application in an electrochemical sensor, wherein a fill electrolyte (10) of the half cell is in contact with an external medium via a liquid junction (5), characterized in that the liquid junction (5) is controllable as regards its permeability and/or its flow.

Abstract: 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.

Abstract: An electrochemical, especially potentiometric, measuring probe (1), for measuring a chemical or physical, measured variable, especially a pH value, of a measured medium, wherein the measuring probe comprises: At least one measuring half cell and at least one reference half cell, wherein the reference half cell includes: A housing (3, 7) of electrically insulating material, in which a reference electrolyte chamber (8) containing a liquid, reference electrolyte (17) is formed, and which has in a housing wall (7) a diaphragm (21) permeable for the reference electrolyte (17) for providing electrolytic contact between the reference half cell and the measured medium; a potential indicating element (19) extending into the reference electrolyte (17); and a supply opening (22) opening into the reference electrolyte chamber (8) for supply of reference electrolyte (17) into the reference electrolyte chamber (8); characterized in that the reference half cell has a check valve (23) blocking exit of reference elect

Abstract: An adapter for a potentiometric sensor having a sensor shaft, which has a reference liquid opening in its exterior surface. The adapter comprises an annular chamber member having a sensor opening for receiving the sensor shaft. Arranged in the sensor opening are first and second sealing rings for the sensor shaft. The axial position of the reference liquid opening lies between the first and second sealing rings. Formed between the sealing rings and the sensor shaft is an annular chamber, which is in communication with the reference liquid opening. The annular chamber member further includes a duct extending between the annular chamber and a reference feed opening. The adapter further includes a process connection member having a process connection opening, which surrounds the sensor shaft, and whose axis is aligned with the axis of the sensor opening.

Abstract: 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.

Abstract: An adapter for a potentiometric sensor having a sensor shaft, which has a reference liquid opening in its exterior surface. The adapter comprises an annular chamber member having a sensor opening for receiving the sensor shaft. Arranged in the sensor opening are first and second sealing rings for the sensor shaft. The axial position of the reference liquid opening lies between the first and second sealing rings. Formed between the sealing rings and the sensor shaft is an annular chamber, which is in communication with the reference liquid opening. The annular chamber member further includes a duct extending between the annular chamber and a reference feed opening. The adapter further includes a process connection member having a process connection opening, which surrounds the sensor shaft, and whose axis is aligned with the axis of the sensor opening.