Abstract: A radar arrangement includes a multi-layer printed circuit board, an antenna, an electronic component for generating and converting a high frequency (HF) signal, and a lead structure for guiding the HF signal between the electronic component and the antenna. The circuit board includes a first layer of a carrier material and a second layer of a HF substrate. The electronic component and the antenna are arranged on a component side of the HF substrate. The lead structure is arranged at least in regions on the component side. The component side is cast at least in the region of the electronic component. A metal layer is arranged between the first and second layers. The lead structure is connected to the metal layer in areas via a through-hole such that the through-hole forms a DC short circuit so the lead structure and the metal layer have the same potential during operation.

Abstract: A system includes a fill level measuring device and at least one attachment. The fill level measuring device measures the fill level of a medium in a container. The fill level measuring device has a control and evaluation unit for generating a measurement signal, and a process connection element. The process connection element has a transmission element on the medium side. The transmission element is at least partially permeable to the measurement signal. The at least one attachment is connected to the process connection element. The at least one attachment has, on the medium side, an attachment lens for coupling the measurement signal into the container. The attachment lens is designed and, during operation, arranged behind the transmission element in the propagation direction of the measurement signal in such a way that the attachment lens changes the opening angle of the measurement signal.

Abstract: A fill level measuring device having at least one transmitting and receiving unit, a measuring antenna with a first supply element for transmitting and receiving an electromagnetic measurement signal and at least one dielectric body for guiding and/or shaping the waves of the measurement signal, and a communication antenna. The communication antenna has at least one second supply element for wireless transmission and for receiving an electromagnetic communication signal. To provide a fill level measuring device that can be used particularly flexibly, the first supply element and the second supply element are arranged inside the dielectric body so that the dielectric body is able to guide and/or shape the measurement signal and the communication signal.

Abstract: Described and shown is a device for measuring the distance to an object, including at least two freely radiating transmitter units for transmitting an electromagnetic measuring signal, at least one receiver unit for receiving a reflection signal reflected on the object, and at least one evaluation unit. The at least one receiver unit forwards the received reflection signal to the at least one evaluation unit. The transmitter units and the at least one receiver unit are arranged within one measuring environment. The transmitter units and the at least one receiver unit have at least one common measuring frequency range. The operation of the transmitter units is coordinated so that the measuring signals transmitted by the transmitter units and the reflection signals resulting from the measuring signals can be differentiated from one another.

Abstract: A conductivity meter for measuring an electrical conductivity of a liquid medium having a housing, a conductive first measuring cell and a control device for controlling the first measuring cell, wherein the first measuring cell has a first conductivity measuring range, a first electrode and a second electrode, and wherein the first measuring cell and the control device are arranged at the housing. To provide a conductivity meter for measuring an electrical conductivity of a liquid medium, whose conductivity measuring range is increased, the conductivity meter has a second measuring cell with a second conductivity measuring range, that the second measuring cell is arranged at the housing, and that the control device is designed for controlling the second measuring cell.

Abstract: A fill level measuring device having at least one transmitting and receiving unit, a measuring antenna with a first supply element for transmitting and receiving an electromagnetic measurement signal and at least one dielectric body for guiding and/or shaping the waves of the measurement signal, and a communication antenna. The communication antenna has at least one second supply element for wireless transmission and for receiving an electromagnetic communication signal. To provide a fill level measuring device that can be used particularly flexibly, the first supply element and the second supply element are arranged inside the dielectric body so that the dielectric body is able to guide and/or shape the measurement signal and the communication signal.

Abstract: A method for operating a measuring site (1), wherein a measured variable is determined by a sensor (5) that can be calibrated and in which an exact as possible planning of activities, to which, for example, calibration or sensor replacement belong, is possible is obtained, in accordance with the method, in that the sensor (5) is calibrated at presettable calibration points in time, that at least one parameter in conjunction with calibration is stored as a part of reference data of the sensor (5) and that at least one aging-dependent variable of a sensor (8, 6) differing from the sensor (5) is estimated based on reference data of the sensor (5).

Abstract: A conductivity meter for measuring an electrical conductivity of a liquid medium having a housing, a conductive first measuring cell and a control device for controlling the first measuring cell, wherein the first measuring cell has a first conductivity measuring range, a first electrode and a second electrode, and wherein the first measuring cell and the control device are arranged at the housing. To provide a conductivity meter for measuring an electrical conductivity of a liquid medium, whose conductivity measuring range is increased, the conductivity meter has a second measuring cell with a second conductivity measuring range, that the second measuring cell is arranged at the housing, and that the control device is designed for controlling the second measuring cell.

Abstract: Described and shown is a device for measuring the distance to an object, including at least two freely radiating transmitter units for transmitting an electromagnetic measuring signal, at least one receiver unit for receiving a reflection signal reflected on the object, and at least one evaluation unit. The at least one receiver unit forwards the received reflection signal to the at least one evaluation unit. The transmitter units and the at least one receiver unit re arranged within one measuring environment. The transmitter units and the at least one receiver unit have at least one common measuring frequency range. The operation of the transmitter units is coordinated so that the measuring signals transmitted by the transmitter units and the reflection signals resulting from the measuring signals can be differentiated from one another.

Abstract: A microwave module 1 for a fill level measuring device 2 operating with the runtime method, has a chip for generating and/or receiving microwave signals and a carrier element. To provide an advantageous as possible microwave module, the chip is located in a cavity 9 of the carrier element 8.

Abstract: A method for operating a measuring site (1), wherein a measured variable is determined by a sensor (5) that can be calibrated and in which an exact as possible planning of activities, to which, for example, calibration or sensor replacement belong, is possible is obtained, in accordance with the method, in that the sensor (5) is calibrated at presettable calibration points in time, that at least one parameter in conjunction with calibration is stored as a part of reference data of the sensor (5) and that at least one aging-dependent variable of a sensor (8, 6) differing from the sensor (5) is estimated based on reference data of the sensor (5).

Abstract: A microwave module 1 for a fill level measuring device 2 operating with the runtime method, has a chip for generating and/or receiving microwave signals and a carrier element. To provide an advantageous as possible microwave module, the chip is located in a cavity 9 of the carrier element 8.

Abstract: One embodiment relates to a circuit for active loss compensation. The circuit includes a parallel inductor-capacitive (LC) tank circuit having a first single-ended output. A first adjustable capacitor, which includes a first terminal and a second terminal, is coupled to the first single-ended output. The circuit also includes a first pair of transistors having sources coupled to a first common node. One transistor of the first pair of transistors has a drain coupled to the first single-ended output and the other transistor of the first pair of transistors has a gate coupled to the second terminal of the first adjustable capacitor. Other embodiments are also disclosed.

Abstract: One embodiment relates to a circuit for active loss compensation. The circuit includes a parallel inductor-capacitive (LC) tank circuit having a first single-ended output. A first adjustable capacitor, which includes a first terminal and a second terminal, is coupled to the first single-ended output. The circuit also includes a first pair of transistors having sources coupled to a first common node. One transistor of the first pair of transistors has a drain coupled to the first single-ended output and the other transistor of the first pair of transistors has a gate coupled to the second terminal of the first adjustable capacitor. Other embodiments are also disclosed.