Coriolis Meters
the science behind accurate Flow Measurement
Coriolis Technology: Proven Accuracy Through Innovation
Coriolis technology is a highly accurate method for measuring mass flow and density, widely regarded as one of the most reliable techniques in flow measurement. First developed in the 1970s by Micro Motion™, this technology is based on the Coriolis effect, named after the French scientist Gustave-Gaspard de Coriolis, who described it in 1835.
The Coriolis effect explains the apparent deflection of the path of an object within a rotating coordinate system. While the object’s path doesn’t actually change, it appears to deviate due to the rotation of the system. This principle forms the foundation of Coriolis flow measurement, offering unmatched accuracy and reliability.
How the Coriolis Effect Works in Flow Meters?
Coriolis flow meters use oscillating tubes to measure fluid movement. Here’s how it works:
1. Oscillation: A sine wave voltage is applied to an electromagnetic drive, causing the flow tube(s) to oscillate.
2. Mass Flow Measurement: As the fluid flows through the oscillating tubes, the Coriolis force causes a twisting effect. This twist is proportional to the mass flow rate and is measured by sensors.
3. Density Calculation: The frequency of oscillation changes with the density of the fluid, enabling simultaneous density measurement.
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Principles of Operation
The effect of the Coriolis force is an apparent deflection of the path of an object that moves within a rotating coordinate system. The object does not actually deviate from its path, but it appears to do so because of the motion of the coordinate system.
View our Coriolis mass flow meters
or
use our product comparison table to guide you in selecting the right product for your needs.
Advantages of Coriolis Meters
Direct mass flow measurement
Unaffected by temperature or pressure fluctuations
High accuracy, with readings as precise as ±0.05% of mass flow
No moving parts, ensuring low maintenance and high reliability
- Low cost of ownership
Coriolis Meter Limitations
- May not be suitable for viscous fluids as the pressure drop increases with fluid viscosity
Coriolis flow meters are suitable for a variety of processes requiring mass flow measurement including
- Monitoring concentration and solids content
- Measurement of slurries
- Blending ingredients and additives
- Metering natural-gas consumption
- Pharmaceutical, cosmetic, and biochemical industries
- Custody transfer
- Catalyst addition processes
Need Advice About Coriolis Meters?
iCenta is a instrumentation and control solution specialist with experience in control technologies for diverse applications, fluid types and process conditions. Call iCenta now for advice, sales & technical information on 01722 439 880.