Abstract: The present disclosure relates to a field device, comprising: a first inductive interface, at least for transmitting and receiving data, especially for transmitting a value dependent on the measured condition; at least one second interface at least for receiving energy; and a first coupling body comprising the first, inductive interface and the second interface.

Abstract: A measuring method for measuring dissolved oxygen includes performing a first measurement sequence, including: emitting a first stimulation signal onto a sensor for a first period; detecting a first detection signal; determining a phase shift between the first stimulation signal and the first detection signal; and calculating a first measured value based on the determined phase shift. Performing a second measurement sequence, including a second stimulation signal onto the sensor for a second period, wherein the second stimulation signal is different than the first stimulation signal; detecting a second detection signal; determining a decay time of the second detection signal; calculating a second measured value based on the decay time. The method further includes comparing the first measured value to the second measured value and correcting the first measured value when a difference between the first measured value and the second measured value is greater than a first limit value.

Abstract: The present disclosure includes a method for correcting a primary measurement signal detected by an optical detector. The method includes: emitting a first light signal from a light source to an active sensor layer such that the active sensor layer is stimulated and emits a second light signal, which is detected by an optical detector; determining the primary measurement signal of a primary measurement parameter based on the second light signal and/or the first light signal; determining a secondary measurement signal of a secondary measurement parameter that is different from the primary measurement parameter based on the first light signal or the second light signal; comparing the determined secondary measurement signal with a first limit value; and correcting the primary measurement signal when the secondary measurement signal exceeds the first limit value, wherein correcting the primary measurement signal comprises smoothing the primary measurement signal by filtering.

Abstract: The present disclosure relates to an optical sensor having a light source that emits light on a sensor layer, wherein the sensor layer can be brought into contact with a medium, wherein the first sensor layer emits emission light as a function of the incident light and a concentration of a measured value of the medium; a receiver, which receives the emission light; a first light guide, which conducts light from the light source onto a first region of the sensor layer and conducts emission light from the first region of the sensor layer to the receiver; and a second light guide independent of the first light guide which conducts light from the light source onto a second region of the first sensor layer and conducts emission light from the second region of the sensor layer to the receiver.

Abstract: A measuring method for measuring dissolved oxygen includes performing a first measurement sequence, including: emitting a first stimulation signal onto a sensor for a first period; detecting a first detection signal; determining a phase shift between the first stimulation signal and the first detection signal; and calculating a first measured value based on the determined phase shift. Performing a second measurement sequence, including a second stimulation signal onto the sensor for a second period, wherein the second stimulation signal is different than the first stimulation signal; detecting a second detection signal; determining a decay time of the second detection signal; calculating a second measured value based on the decay time. The method further includes comparing the first measured value to the second measured value and correcting the first measured value when a difference between the first measured value and the second measured value is greater than a first limit value.

Abstract: The present disclosure relates to a field device, comprising: a first inductive interface, at least for transmitting and receiving data, especially for transmitting a value dependent on the measured condition; at least one second interface at least for receiving energy; and a first coupling body comprising the first, inductive interface and the second interface.

Abstract: The present disclosure includes a method for correcting a primary measurement signal detected by an optical detector. The method includes: emitting a first light signal from a light source to an active sensor layer such that the active sensor layer is stimulated and emits a second light signal, which is detected by an optical detector; determining the primary measurement signal of a primary measurement parameter based on the second light signal and/or the first light signal; determining a secondary measurement signal of a secondary measurement parameter that is different from the primary measurement parameter based on the first light signal or the second light signal; comparing the determined secondary measurement signal with a first limit value; and correcting the primary measurement signal when the secondary measurement signal exceeds the first limit value, wherein correcting the primary measurement signal comprises smoothing the primary measurement signal by filtering.

Abstract: The present disclosure relates to an optical sensor having a light source that emits light on a sensor layer, wherein the sensor layer can be brought into contact with a medium, wherein the first sensor layer emits emission light as a function of the incident light and a concentration of a measured value of the medium; a receiver, which receives the emission light; a first light guide, which conducts light from the light source onto a first region of the sensor layer and conducts emission light from the first region of the sensor layer to the receiver; and a second light guide independent of the first light guide which conducts light from the light source onto a second region of the first sensor layer and conducts emission light from the second region of the sensor layer to the receiver.

Abstract: An arrangement for optical measurement of at least one process variable in a medium, comprising: at least one light source; at least one light receiver; an optical sensor element at least one data processing unit; and a light conductor. The light conductor connects the light source with the optical sensor element and the optical sensor element with the light receiver. The light conductor is embodied with at least three arms, wherein the first arm is arranged at the light source, the second arm is arranged at the light receiver and the third arm is arranged at the optical sensor element first arm and the second arm combine to form the third arm. The invention relates further to a measuring device comprising an above described arrangement.

Abstract: An optical sensor, comprising a sensor head, which contains a sensitive element and which is adjoined by a housing, which contains sensor electronics, wherein the sensitive element is irradiated with light from an optical transmitter and a light characteristic radiated back by the sensitive element is detected by an optical receiver and evaluated by the sensor electronics. The sensor head and the housing are embodied to be separable, wherein different sensor heads having different sensitive elements are connectable to the housing containing the sensor electronics and the sensor electronics evaluates the light characteristics generated by the different sensitive elements.

Abstract: An arrangement for optical measurement of at least one process variable in a medium, comprising: at least one light source; at least one light receiver; an optical sensor element at least one data processing unit; and a light conductor. The light conductor connects the light source with the optical sensor element and the optical sensor element with the light receiver. The light conductor is embodied with at least three arms, wherein the first arm is arranged at the light source, the second arm is arranged at the light receiver and the third arm is arranged at the optical sensor element first arm and the second arm combine to form the third arm. The invention relates further to a measuring device comprising an above described arrangement.

Abstract: 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.

Abstract: A measuring system for determining a value of a physical or chemical, measured variable of a medium, includes: a base unit; at least one relay unit connected with the base unit and a sensor unit connected with the relay unit. The sensor unit includes a circuit having at least one microcontroller, at least a first memory region, and a second memory region. The upload software is embodied, in interaction with the microcontroller, to perform an updating of the basic software with at least one software module provided from the base unit. The relay unit includes a circuit having at least one microcontroller, and at least a first memory region, in which a basic software of the relay unit is stored. The circuit of the relay unit further includes a second memory region, in which an upload software of the relay unit is stored.

Abstract: An optical sensor, comprising a sensor head, which contains a sensitive element and which is adjoined by a housing, which contains sensor electronics, wherein the sensitive element is irradiated with light from an optical transmitter and a light characteristic radiated back by the sensitive element is detected by an optical receiver and evaluated by the sensor electronics. The sensor head and the housing are embodied to be separable, wherein different sensor heads having different sensitive elements are connectable to the housing containing the sensor electronics and the sensor electronics evaluates the light characteristics generated by the different sensitive elements.

Abstract: A measuring system for determining a value of a physical or chemical, measured variable of a medium, comprises: a base unit; at least one relay unit connected with the base unit and a sensor unit connected with the relay unit. The relay unit is especially embodied to receive from the base unit, and to forward to the sensor unit, data, especially measurement data, operating data, commands or software modules, and/or to receive from the sensor unit, and to forward to the base unit, data, especially measurement data, operating data, commands or software modules wherein the sensor unit comprises a circuit having at least one microcontroller, at least a first memory region, in which a basic software of the sensor unit is stored, and a second memory region, in which an upload software of the sensor unit is stored.

Abstract: A device for preventing the unintentional restarting of motors or machines is proposed, it being possible to control the supply of energy to the motor or to the machine by means of a control valve with a mechanically adjustable control element and it being possible to connect the control valve non-detachably to the motor or to the machine, the energy for the motor being generated by means of compressed air, and in that a pneumatic piston, to which the primary air pressure prevailing upstream of the motor and upstream of the control valve can be applied, being arranged as a restarting inhibitor between the control valve and the motor, and in that, in order to apply the primary air pressure, a connecting line being arranged between the motor and the piston.

Abstract: A device for preventing the unintentional restarting of motors or machines is proposed, it being possible to control the supply of energy to the motor or to the machine by means of a control valve with a mechanically adjustable control element and it being possible to connect the control valve non-detachably to the motor or to the machine, the energy for the motor being generated by means of compressed air, and in that a pneumatic piston, to which the primary air pressure prevailing upstream of the motor and upstream of the control valve can be applied, being arranged as a restarting inhibitor between the control valve and the motor, and in that, in order to apply the primary air pressure, a connecting line being arranged between the motor and the piston.