Abstract: The application discloses a method for verifying the accuracy of a guided-wave radar measuring device used in process automation. The method includes sending measuring radar waves to a built-in verification circuit of a known and verified length and performing time-of-flight analysis on the measuring radar wave reflected by the built-in verification circuit. The application also discloses a guided-wave radar device having a built-in verification circuit.

Abstract: The application discloses a method for verifying the accuracy of a guided-wave radar measuring device used in process automation. The method includes sending measuring radar waves to a built-in verification circuit of a known and verified length and performing time-of-flight analysis on the measuring radar wave reflected by the built-in verification circuit. The application also discloses a guided-wave radar device having a built-in verification circuit.

Abstract: A level measurement device for measuring a level (L) of a product, in particular a product contained in a container, comprising: mounting means for mounting said measurement device at a measurement site, an antenna comprising a dielectric antenna element for transmitting microwave signals (S) towards the product and/or for receiving echo signals (R) resulting from reflections of the transmitted microwave signals, and measurement electronics for determining the level (L) of the product based on a transit time needed for the microwave signals to travel to a surface of the product and of their echo signals to return to the device, is described allowing to prevent deposits to build up, which may eventually impair transmission and/or reception of the signals. To this extent, the measurement device according to the invention comprises a cap covering said dielectric antenna element and cleaning means for cleaning said cap are foreseen, which cause said cap to vibrate when they are activated.

Abstract: A level measurement device for measuring a level (L) of a product, in particular a product contained in a container, comprising: mounting means for mounting said measurement device at a measurement site, an antenna comprising a dielectric antenna element for transmitting microwave signals (S) towards the product and/or for receiving echo signals (R) resulting from reflections of the transmitted microwave signals, and measurement electronics for determining the level (L) of the product based on a transit time needed for the microwave signals to travel to a surface of the product and of their echo signals to return to the device, is described allowing to prevent deposits to build up, which may eventually impair transmission and/or reception of the signals. To this extent, the measurement device according to the invention comprises a cap covering said dielectric antenna element and cleaning means for cleaning said cap are foreseen, which cause said cap to vibrate when they are activated.

Abstract: A drilling rig which provides information, which may be used to detect abnormal drilling mud backflow, comprising: a drill string for drilling a borehole comprising a drill bit at its end, structure for pumping drill mud down the borehole inside the drill string through the drill bit, and up the borehole on an outside of the drill string, a riser surrounding the drill string above the borehole, an annulus enclosed between the riser and the drill string forming a passageway for drill mud rising from the bottom of the borehole on the outside of the drill string structure for measuring a level of the drill mud inside the annulus inside the riser above the borehole, comprising: a first pressure measurement device for measuring a first pressure prevailing inside the annulus at a first height and a second pressure measurement device for measuring a second pressure prevailing inside the annulus at a second height, structure for determining a density of the drill mud, based on a ratio of a pressure difference between

Abstract: A measurement arrangement for measuring and/or monitoring a physical property, comprising a measurement device comprising: at least one primary sensing element to be exposed to a product at a measurement site, a remotely located secondary measurement device, and transmission lines connecting said primary sensing elements to said secondary measuring device, suitable for applications wherein the primary sensing elements may be exposed to strong vibrations at the measurement sites, is described, wherein said secondary measurement device is mounted above all primary sensing elements and wherein said transmission lines comprise an inner core, an outer tubular protection conduit enclosing said core, and a vibration absorbing medium filling an interior of said outer protection conduit surrounding said inner core.

Abstract: A measurement arrangement for measuring and/or monitoring a physical property, comprising a measurement device comprising: at least one primary sensing element to be exposed to a product at a measurement site, a remotely located secondary measurement device, and transmission lines connecting said primary sensing elements to said secondary measuring device, suitable for applications wherein the primary sensing elements may be exposed to strong vibrations at the measurement sites, is described, wherein said secondary measurement device is mounted above all primary sensing elements and wherein said transmission lines comprise an inner core, an outer tubular protection conduit enclosing said core, and a vibration absorbing medium filling an interior of said outer protection conduit surrounding said inner core.

Abstract: A level measurement arrangement for measurement of a level of a product in a container, comprising: a level sensor, having: a mounting element, including a process connector, for mounting the mounting element on a mating counter connector on an opening of the container, and a conductive probe segment extending from the mounting element into the container; a conductive probe extension (19), having a first end, which is permanently fixed to an inner wall of the container, and having a second end, which is detachably connectable to an end of the conductive probe segment extending into the container; and sensor electronics comprising elements for generating and sending short electromagnetic pulses down the probe segment and the probe extension, elements for reception of the echoes of the pulses reflected at a surface of the product elements for determining the level of the product in the container, based on a time of flight needed for a pulse to travel down the probe segment and the probe extension, and its echo

Abstract: A level measurement arrangement for measurement of a level of a product in a container comprising: a level sensor, comprising: a conductive probe, a mounting element, comprising, and a process connector, for mounting the mounting element on a ferrule on the container, is described, wherein electrical isolation of the conductive probe from the ferrule is ensured via a dielectric insert, which is inserted in the ferrule, fills all cavities inside the ferrule, and extends through the ferrule into the container.

Abstract: A level measurement arrangement for measurement of a level of a product in a container comprising: a level sensor, comprising: a conductive probe, a mounting element, comprising, and a process connector, for mounting the mounting element on a ferrule on the container, is described, wherein electrical isolation of the conductive probe from the ferrule is ensured via a dielectric insert, which is inserted in the ferrule, fills all cavities inside the ferrule, and extends through the ferrule into the container.

Abstract: A level measurement arrangement for measurement of a level of a product in a container, comprising: a level sensor, having: a mounting element, including a process connector, for mounting the mounting element on a mating counter connector on an opening of the container, and a conductive probe segment extending from the mounting element into the container; a conductive probe extension (19), having a first end, which is permanently fixed to an inner wall of the container, and having a second end, which is detachably connectable to an end of the conductive probe segment extending into the container; and sensor electronics comprising elements for generating and sending short electromagnetic pulses down the probe segment and the probe extension, elements for reception of the echoes of the pulses reflected at a surface of the product elements for determining the level of the product in the container, based on a time of flight needed for a pulse to travel down the probe segment and the probe extension, and its echo