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Description of the factors that are subject to the measurement of the thermal gas mass flowmeter during measurement

1, pressure
The flow rate of the gas measured by the flow meter used in the dispenser is not less than 20 MPa, and the pressure is much greater than atmospheric pressure. The high pressure changes the internal stress of the vibrating tube, and the equivalent stiffness of the elastic tube is increased, so that the vibration frequency of the vibrating tube is increased, and the phase difference between the two tubes is reduced; when the gas flows through the vibrating tube, there is a pressure drop, so that the vibrating tube The force is asymmetrical, which also has an effect on the phase difference.
2. Flow rate
When the gas is measured, the flow rate of the gas is a problem that must be considered. If the flow rate is too fast, it will directly limit the accuracy of the measurement. When measuring the gas, people need to fully consider the measurement of the gas in a suitable measurement environment. In order to ensure the accuracy and practicability of the measured data.
3, temperature
In the gas measurement, the problem of gas is another important factor that restricts the flow measurement of the flowmeter. In the measurement, people need to fully consider the influence of the temperature change on the measurement data, so as to better understand the industrial production and application.
When measuring gas-related data, the flowmeter is mainly restricted by the above three factors. In actual operation, the operator needs to fully consider the above factors, so as to obtain more accurate and practical data.

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