How to reduce the influence of bubbles on a micro motion coriolis flow meter?

Oct 14, 2025

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Ethan Smith
Ethan Smith
Ethan is a senior engineer at Shaanxi Dongsheng Energy Technology Co., Ltd. With over 10 years of experience in the energy technology field, he specializes in valve development and production. His expertise has contributed significantly to the company's product innovation.

Bubbles can significantly affect the performance of a micro motion Coriolis flow meter, leading to inaccurate measurements and potential operational issues. As a supplier of micro motion Coriolis flow meters, we understand the challenges posed by bubbles and are committed to providing solutions to reduce their influence. In this blog post, we will explore the causes of bubble formation, the impact of bubbles on Coriolis flow meters, and effective strategies to minimize their effects.

Causes of Bubble Formation

Bubbles can form in a fluid for various reasons, including:

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  • Dissolved Gases: When a fluid contains dissolved gases, changes in pressure, temperature, or flow conditions can cause the gases to come out of solution and form bubbles. For example, if the pressure of a fluid decreases suddenly, the solubility of gases in the fluid decreases, leading to the formation of bubbles.
  • Mechanical Agitation: Agitation or turbulence in the fluid can also cause bubbles to form. This can occur during pumping, mixing, or other processes that involve the movement of the fluid.
  • Chemical Reactions: Some chemical reactions can produce gases as a byproduct, which can form bubbles in the fluid. For example, the reaction between an acid and a base can produce carbon dioxide gas, which can form bubbles in the solution.

Impact of Bubbles on Micro Motion Coriolis Flow Meters

Bubbles can have several negative effects on the performance of a micro motion Coriolis flow meter, including:

  • Measurement Inaccuracy: Bubbles can cause the density and viscosity of the fluid to change, which can affect the accuracy of the flow measurement. The presence of bubbles can also cause the flow meter to detect false signals, leading to incorrect readings.
  • Increased Noise: Bubbles can create noise in the flow meter signal, which can make it difficult to distinguish between the true flow signal and the noise. This can result in increased measurement uncertainty and reduced reliability.
  • Wear and Tear: Bubbles can cause erosion and wear on the internal components of the flow meter, such as the tubes and sensors. This can lead to reduced lifespan and increased maintenance costs.

Strategies to Reduce the Influence of Bubbles

To minimize the impact of bubbles on a micro motion Coriolis flow meter, several strategies can be employed:

  • Proper Installation: Ensuring proper installation of the flow meter is crucial to reducing the influence of bubbles. The flow meter should be installed in a location where the fluid flow is laminar and free from turbulence. It is also important to ensure that the flow meter is installed in a vertical or horizontal position, depending on the manufacturer's recommendations.
  • Use of Bubble Traps: Bubble traps can be installed upstream of the flow meter to remove bubbles from the fluid before it enters the flow meter. Bubble traps work by allowing the bubbles to rise to the surface of the fluid and be removed through a vent or drain.
  • Filtration: Filtration can be used to remove solid particles and debris from the fluid, which can help reduce the formation of bubbles. A filter can be installed upstream of the flow meter to remove any contaminants that may be present in the fluid.
  • Pressure and Temperature Control: Maintaining stable pressure and temperature conditions can help prevent the formation of bubbles. It is important to ensure that the fluid pressure and temperature are within the recommended operating range of the flow meter.
  • Flow Rate Optimization: Optimizing the flow rate of the fluid can help reduce the formation of bubbles. The flow rate should be adjusted to ensure that the fluid is flowing smoothly through the flow meter without excessive turbulence.

Specific Solutions for Different Applications

In addition to the general strategies mentioned above, there are specific solutions that can be used to reduce the influence of bubbles in different applications:

  • Oil and Gas Industry: In the oil and gas industry, where the presence of bubbles is common, the use of a 8800 Wafer Vortex Flow Meter can be an effective solution. This flow meter is designed to handle high-viscosity fluids and can tolerate the presence of bubbles without significant loss of accuracy.
  • Chemical Industry: In the chemical industry, where chemical reactions can produce bubbles, the use of a Rosemount 3051 Multivariable Transmitter can be beneficial. This transmitter can measure multiple variables, such as pressure, temperature, and flow rate, and can compensate for the effects of bubbles on the flow measurement.
  • Food and Beverage Industry: In the food and beverage industry, where hygiene is a major concern, the use of a Rosemount 8800 Flanged Vortex Flow Meter can be a good choice. This flow meter is designed to meet the strict hygiene requirements of the industry and can handle the presence of bubbles without compromising the quality of the product.

Conclusion

Bubbles can have a significant impact on the performance of a micro motion Coriolis flow meter, but with the right strategies and solutions, their influence can be minimized. By understanding the causes of bubble formation, the impact of bubbles on the flow meter, and the effective strategies to reduce their effects, you can ensure accurate and reliable flow measurement in your application.

As a supplier of micro motion Coriolis flow meters, we have the expertise and experience to help you select the right flow meter for your application and provide you with the necessary support and solutions to reduce the influence of bubbles. If you have any questions or need further information, please do not hesitate to contact us. We look forward to working with you to meet your flow measurement needs.

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