What are the common influencing factors of gas mass flow meters? The gas mass flow meter is designed and produced based on the principle of thermal diffusion. The product is widely used in steel plants, coking plants, petroleum, chemical, thermal, medical, thermal power plants, environmental protection and other industries. The gas mass flow meter is a true direct mass flow meter, and the user does not have to compensate for the pressure and temperature. The instrument has no moving parts, small pressure lo ss, wide range ratio, high accuracy, high reliability, simple installation and convenient operation.

There are many factors that affect the flow meter. Simply talk about the common influencing factors:

(1) Pressure

The pressure of the gas measured by the CMF used in the gas dispenser is not less than 20MPa, and the pressure is much higher than the atmospheric pressure. The high pressure changes the internal stress of the vibrating tube and improves the equivalent stiffness of the elastic tube, so that the vibration frequency of the vibrating tube increases and the phase difference between the two tubes decreases; when the gas flows through the vibrating tube, there is a pressure drop, which makes the vibrating tube The force is asymmetric, which also affects the phase difference.

(2) Temperature

The working temperature of the CMF used for the gas dispenser is much lower than the room temperature, and the temperature effect must be considered; the change of the medium temperature or the ambient temperature will change the Young's modulus of the measuring vibrating tube and the structure that affects the zero drift.

(3) Flow rate

Compressed gas has low density and fast flow velocity, and its influence cannot be ignored. Ideally, as the flow rate increases, the vibration frequency of the vibrating tube decreases. Usually the change of fluid density is small, and it can be considered that the flow velocity is proportional to the mass flow of the fluid, so the compensation of the flow velocity can be converted into a nonlinear factor of flow change for compensation.

NONCON Instrument Technology Co., Ltd., professional selection, professional quotation, summarizes the experience of production practice over the years, strives to develop various flow metering products, and professionally customizes flow meter products according to your needs.

Adhere to the principle of "quality first, users first", to ensure long-term stability and continuous improvement of product quality, and to provide users with high-quality products and perfect services. To ensure that the flow meter of the NONCON instrument has the greatest effect, bringing more convenience and benefits to customers.