The present disclosure relates to a Coriolis measuring transmitter of a Coriolis measuring device for measuring a mass flow or a density of a medium flowing through a pipe, which includes: at least one pair of measuring tubes arranged to oscillate relative to each other, wherein each measuring tube includes a centrally arranged bend, at least one driver and at least two vibration sensors; two guiding devices, each including a fluid chamber with a first opening for connection with the pipe and second openings for each measuring tube for connection with the measuring tubes, wherein the guiding devices are each formed from multiple parts, for example, formed from two parts, wherein a first part forms a pipe connecting part, and wherein at least one second part forms a measuring tube connecting part.

In some embodiments, an apparatus includes a base structure and a tube. The tube has a first tube portion, a second tube portion substantially parallel to the first tube portion, an inlet portion, and an outlet portion. The tube is configured to have a material pass from the inlet portion to the outlet portion. The apparatus further includes a drive element in contact with the tube. The drive element is configured to vibrate the tube such that the first tube portion conducts vibrational movements out of phase with vibrational movements of the second tube portion. The apparatus also includes a sensing element, at least a portion of which is in contact with the tube. The sensing element is configured to sense deflections of the first tube portion and the second tube portion such that at least one property of the material is determined.

In some embodiments, an apparatus includes a base structure and a tube. The tube has a first tube portion, a second tube portion substantially parallel to the first tube portion, an inlet portion, and an outlet portion. The tube is configured to have a material pass from the inlet portion to the outlet portion. The apparatus further includes a drive element in contact with the tube. The drive element is configured to vibrate the tube such that the first tube portion conducts vibrational movements out of phase with vibrational movements of the second tube portion. The apparatus also includes a sensing element, at least a portion of which is in contact with the tube. The sensing element is configured to sense deflections of the first tube portion and the second tube portion such that at least one property of the material is determined.

Methods and apparatus are disclosed utilizing a low-order parametric model for decoupling in conjunction with an optimization procedure to improve the ability to determine the density of the liquid phase of a bubbly mixtures within Coriolis meters by characterizing the effect of decoupling in the presence of bubble coalescence.

Methods and apparatus are disclosed utilizing a low-order parametric model for decoupling in conjunction with an optimization procedure to improve the ability to determine the density of the liquid phase of a bubbly mixtures within Coriolis meters by characterizing the effect of decoupling in the presence of bubble coalescence.

The invention relates to a method for metering fuel in a fuel supply circuit of an aircraft engine, the circuit comprising a metering device for a fuel circuit of an aircraft engine comprising, downstream of a fuel pumping system and upstream of injectors: —a fuel inlet (E), —a metering device (FMV) and a cut-off device (HPSOV) arranged in series, —an adjustment valve (VR) arranged on a fuel recirculation branch, such that any excess fuel supplied by the pumping system is fed back into the fuel circuit, wherein at least one flow-metric sensor (WFM1) is arranged on the recirculation branch, a density value for the metered fuel is determined according to the sensor measurements and the metering device is controlled according to the fuel density value thus determined.

The invention relates to a method for metering fuel in a fuel supply circuit of an aircraft engine, the circuit comprising a metering device for a fuel circuit of an aircraft engine comprising, downstream of a fuel pumping system and upstream of injectors: —a fuel inlet (E), —a metering device (FMV) and a cut-off device (HPSOV) arranged in series, —an adjustment valve (VR) arranged on a fuel recirculation branch, such that any excess fuel supplied by the pumping system is fed back into the fuel circuit, wherein at least one flow-metric sensor (WFM1) is arranged on the recirculation branch, a density value for the metered fuel is determined according to the sensor measurements and the metering device is controlled according to the fuel density value thus determined.

A measuring device with a measuring tube is disclosed. The measuring device includes a sensor unit for capturing a parameter of a medium, a control and evaluation unit, and a deflectable measuring sensor with a cavity and a base unit. The sensor unit is at least partially integrated in the wall of the measuring tube. The measuring sensor is connected to the base unit via a spring element. The base unit is arranged outside of the measuring tube. A side of the measuring sensor is in contact with the medium during operation. The cavity is arranged on the side of the measuring sensor facing the medium. The measuring sensor is integrated into the measuring tube wall in such a way that it can be deflected at least in the plane of the measuring tube wall. The sensor unit has a means for capturing the deflection of the measuring sensor.

A measuring device with a measuring tube is disclosed. The measuring device includes a sensor unit for capturing a parameter of a medium, a control and evaluation unit, and a deflectable measuring sensor with a cavity and a base unit. The sensor unit is at least partially integrated in the wall of the measuring tube. The measuring sensor is connected to the base unit via a spring element. The base unit is arranged outside of the measuring tube. A side of the measuring sensor is in contact with the medium during operation. The cavity is arranged on the side of the measuring sensor facing the medium. The measuring sensor is integrated into the measuring tube wall in such a way that it can be deflected at least in the plane of the measuring tube wall. The sensor unit has a means for capturing the deflection of the measuring sensor.

A separation system including a control unit, a first pump connected to the control unit, and a first valve in fluid communication with the first pump and connected to the control unit. Also, a first density meter in fluid communication with the first valve and connected to the control unit. The system further includes a separator in fluid communication with the density meter and connected to the control unit and a tank in fluid communication with the separator. The system also includes a second pump in fluid communication with the tank and connected to the control unit, as well as a second density meter in fluid communication with the second pump and connected to the control unit and a second valve in fluid communication with the second density meter and connected to the control unit.