Supmea Coriolis mass flowmeters provide highly accurate flow measurement for liquids and gases across industries like oil, gas, chemicals, and food production. Based on the advanced Coriolis effect and technology, Supmea Coriolis meters directly measure mass flow, density, and temperature with precision up to ±0.1%.
A high accuracy flow meter is based on the principle of Coriolis effect. If a pipe is rotated around a point (P) while liquid is flowing through it (toward or away from the center of rotation), that fluid will generate an inertial force, with reference to Fig.1:
The particle of mass δm moves to the right in the tube at a uniform speed υ, while the tube rotates around a fixed point P at an angular velocity ω. At this time, the particle will have two acceleration components:
(1) Normal acceleration αr (Centric acceleration), its value is equal to ω2r, which is directed towards point P.
(2) Tangential acceleration αt (Coriolis acceleration), whose value is equal to 2ωυ, and the direction is αr perpendicular. The force produced by the tangential acceleration is called Coriolis force, and its magnitude is equal to Fc=2ωυδm.
In the Fig.1 table, the fluid Δm=ρA×ΔX,
so, the Coefficient of friction can be expressed as:
ΔFc=2ωυ×δm=2ω×υ×ρ×A×ΔX=2ω×δqm×ΔX
where A is the cross-sectional area of the tube
Δqm=δdm/dt=υρA
For a specific rotating tube, its frequency characteristics are certain, ΔFc depends only on δqm. Therefore, the mass flow can be measured directly or indirectly by measuring the Coriolis force.
For more details on how Coriolis mass flowmeter works, please visit our manual PDF of SUP Coriolis mass flowmeter for custody, oil, gas, and water or wastewater processing.
| Diameter |
U-type:DN20~DN150; Triangular:DN3~DN15; Straight Tube:DN8~DN80 |
| Measurand |
Mass flow,density,temperature |
| Density accuracy |
earth 0.002g/cm³ |
| Accuracy |
0.1%,0.15%,0.2% |
| Temperature |
-40℃~+60℃ |
| Power consumption |
<15W |
| Power supply |
220VAC ; 24VDC |
| Signal output |
4~20mA, RS485, HART |
| Ingress protection |
IP67 |
| Density range |
(0.3~3.000)g/cm³ |
| Repeatability |
1/2 of the measurement error |
| Medium temperature |
Standard type: (-50～200)℃, (-20～200)℃; High temperature type: (-50～350)°C; Low-temperature type: (-200～200)°C |
| Process pressure |
(0~4.0)MPa |
| Humidity |
35%~95% |
| Transmission output |
(4～20) mA, output load (250～600) Ω |
-
SUP Coriolis Mass Sensor Lineups
Supmea Coriolis flow measurement solutions offer you three choices: U-type Coriolis mass flow meter, triangular Coriolis mass flow meter, and straight tube Coriolis mass flow meter seamlessly tailed to meet the specific demands of your industry.
SUP Coriolis mass flow meters are widely used across various industries -- oil, gas, chemistry processing, food and beverage, pharmaceutical, water treatment, environment protection, renewable energy applications such as hydrogen and bio-diesel production.
Supmea Coriolis mass flow rate measurements provide flexible customization, adequate supply, and fast delivery with its well-equipped factories, offering customers with exceptional localized service around the world.
Why Choose Supmea Flowmeters?
-
Accurate & Reliable: Consistent, precise results even for challenging applications, such as high-viscosity fluids.
-
Industry-Focused: Ideal for custody transfer, process control, and more.
-
Affordable Quality: High performance at a competitive price point.
-
User-Friendly: Compact, low-maintenance design that integrates seamlessly into your existing processes.
-
FAQ about Coriolis Mass Flowmeter
Q: What is the principle of Coriolis Effect?
A: The Coriolis effect is a phenomenon that occurs when a fluid flows through a vibrating tube. As the tube vibrates, the fluid’s motion causes a shift in the vibration pattern, which is directly proportional to the mass flow rate. This shift is detected and used to measure the flow, density, and temperature of the fluid. The Coriolis effect allows for highly accurate and reliable flow measurements without the need for temperature or pressure compensation.
Q: What is the difference between the ultrasonic flowmeter and Coriolis flow meter?
A: The most significant difference between the ultrasonic flowmeter and Coriolis mass flowmeter lies on the measurement method. Ultrasonic Flowmeters sound waves to measure the flow rate of liquids or gases, which calculates the flow based on the time it takes for sound waves to travel through the fluid. While the Coriolis mass flowmeter measures mass flow directly using the Coriolis effect. It detects changes in vibration caused by the fluid's movement through a vibrating tube, providing accurate readings of mass flow, density, and temperature.
Q: What's the difference between the thermal mass flow meter and Coriolis type mass flow meter?
A: Thermal mass flow meter measures the mass flow rate based on changes in temperature as the fluid passes over a heated sensor, which is ideal for measuring gases and commonly seen in precise gas flow measurement cases. Coriolis Mass Flowmeter uses the Coriolis effect to measure mass flow directly by detecting changes in the vibration of a tube that the fluid flows. It provides flow, density, and temperature with high accuracy and in oil, liquids, and gases processing plants.
