Blue Sky -Your Leading Supplier of All Types mass Flow Meter 

1. What is a gas mass flow meter?

The gas mass flow meter is a new generation of flow measuring device, it can measure the mass and volume of gas directly, and it is widely used in petroleum processing, the chemical industry, oil distribution, and other fields.

As we all know, when the gas flows in a rotating tube, it will generate a force on the tube wall.
In 1832, Coriolis discovered it while studying turbines, so it is also called the Coriolis force. On this basis, the Americans developed the first gas mass flowmeter.

Its principle is that when the gas flows in the flowmeter when passing through the vibrating tube installed on the pulser, the vibrating tube will twist and vibrate. At this time, the detection coil will generate two sets of different phase signals. By comparing The phase difference between the signals can be used to calculate the gas mass flow. The density of the gas can be calculated from the vibration frequency. And the temperature of the gas can be indirectly measured through the point resistance on the pulser.

2. Advantages of gas mass flowmeter

The gas mass flow meter can directly and accurately measure the mass flow, volume flow, and temperature of the gas.

The general flowmeter can only measure the volume flow of gas. If you want to measure the mass flow, you need to use other measuring instruments to work together.

You can calculate the mass of the gas only after you know the parameters such as density and pressure. There will be many uncontrollable factors in this process, resulting in inaccurate final measurement results.

Moreover, the volume flow cannot be dynamically detected, and the accuracy will vary greatly.

The gas mass flowmeter is suitable for a variety of media, and can also measure gas directly without being affected by temperature and pressure. It has no requirement for a straight pipe section, a low maintenance rate, and strong applicability.

3. Types of gas mass flowmeter

There are roughly five types of gas mass flowmeters on the market today.
Direct type: such as calorimetric type, angular momentum type, gyro type, double impeller type, etc.
Indirect type: such as a combination of density meter and flowmeter.
There are also thermal types, differential pressure types, and Coriolis types.

4.  Why use a gas mass flowmeter?

The volume of a gas is a variable that changes with factors such as time, temperature, pressure, etc. The course of a chemical reaction is controlled by the mass (rather than the volume) of the starting materials. The heating and cooling effects of steam and airflow are also proportional to the mass flow.

The mass is also more widely used in existing production activities such as scientific research and commodity trading. Using a volume flow meter can only measure the volume flow of the gas, which often cannot meet people’s requirements. So we need the gas mass flowmeter due to it is more powerful functions, more stable performance, and more accurate measurement.