Cignus Mass Flowmeters
Coriolis measurement principle
The Coriolis measurement principle uses the Coriolis effect to directly measure the mass flow rate and density of fluids with high precision. Inside the traditional Coriolis flowmeter, vibrating flow tubes interact with the moving fluid, creating inertial forces that cause the tubes to deform differently than with fluid at standstill. Sensors detect this deformation as a phase shift, which is directly proportional to the mass flow rate. The vibration frequency of the tubes changes with the fluid’s density, allowing the meter to calculate density simultaneously. Unlike volumetric flowmeters, Coriolis meters provide direct mass flow measurement.
Cignus mass-flow meters make use of the known Coriolis measurement principle without the use of oscillating flow tubes. Cignus mass flowmeters use an internal oscillating structure that is fully independent of the pressure bearing flow tube. The stiffness and strength of the flow tube can therefore be sized independently for high pressures and large dimensions without affecting the internal oscillator flow sensitivity and measurement accuracy.
The Cignus mass flowmeter technology is challenging traditional flowmeters on the marked with a novel design that has several key advantages. Our design solves technology gaps and limitations found in traditional Coriolis technology and keeps the proven benefits of the measurement principle.
Adaptable for different medias
Cignus mass-flow meters can be adapted for metering of a variety of fluids, with key advantages for applications within emerging H2 and CO2 value chains, such as large flow capacity, high accuracy, high sensitivity for low density fluids and wide operating pressure range.
Robust Design
The Cignus mass flowmeters are suitable for high pressure applications and a wide range of pipe diameters without affecting accuracy, and is practically scalable to very large piping sizes.
High Accuracy
Cignus mass flowmeters are tested and proven to be as accurate as market leading technologies, and even surpass these in challenging applications where technical limitations of traditional Coriolis flowmeters become evident.
Negligible pressure loss
Cignus mass-flow meters novel design has negligible pressure loss compared to traditional coriolis flow meters. For traditional coriolis meters there is always a trade-off between operating pressure capabilities, mass-flow sensitivity and internal pressure loss. The Cignus design gives minimal interference with the flow path, and there is no trade-off between operating pressure capabilities, mass-flow sensitivity and internal pressure loss.
Pressure loss in traditional Coriolis meters is given by the geometry of the oscillating flow tube(s). In order to increase the mass-flow sensitivity and/or increase the pressure capability, the oscillating pipe diameter can be reduced or split into several parallell flow tubes leading to a reduced cross sectional total area with the sacrifice of increased pressure loss.
Contact us for more information on how our technology can be applied in you applications and qualification test data.