Mass flowmeter knowledge big inventory

Mass flowmeter is a kind of accurate measurement of gas flow instrument. Its measurement value will not be out of alignment due to temperature or pressure fluctuations, no temperature and pressure compensation is required. Mass flowmeter can directly measure the mass flow of the medium through the flowmeter, can also measure the density of the medium, and indirectly measure the temperature of the medium. As the transmitter is a single chip microcomputer as the core of the intelligent instrument, it can be based on the above three basic quantities derived more than a dozen parameters for users to use. Mass flowmeter is a new generation flowmeter with flexible configuration, powerful function and high cost performance. There is a lot more knowledge about mass flowmeters. Here, mass flowmeter manufacturers will introduce the principle of mass flowmeter, advantages and so on.

Principle of mass flowmeter by mass flowmeter manufacturer:

The principle of mass flowmeter is Newton's second law F=Ma. When the fluid flows in the vibrating tube, the Coriolis force proportional to the mass flow rate will be generated. When there is no fluid flowing through, the vibrating tube does not distort, and the signals detected by the electromagnetic signal detector on both sides of the vibrating tube are in the same phase. When a fluid passes through, the vibration tube will distort under the action of torque, and there will be a phase difference between the two detectors. The transmitter measures the lag time between the left and right detection signals, and the time difference multiplied by the flow calibration coefficient can determine the mass flow rate. The density measurement principle of mass flowmeter manufacturers is that the vibration frequency is inversely proportional to the square root of fluid density, and the fluid density is determined by measuring the vibration frequency. So can realize the measurement of fluid mass flow rate, but also can realize the measurement of fluid density.

Advantages of mass flowmeter from mass flowmeter manufacturers

1. Directly measure the mass flow of the fluid, the current signal converted by the transmitter need not be specified;

2. Long service life, low maintenance rate: the measuring body of the mass flowmeter is a U-shaped tube, the two open ends of the U-shaped tube are fixed, and the fluid flows into and out through it. There are no obstacles and moving parts in the pipe, less fault factors, convenient installation and maintenance.

3. Multifunctional: Mass flowmeter manufacturer's products can measure multiple field variables, such as flow, density, temperature, etc. At the same time. The transmitter has two independently configurable output signals that can be used to display measurements of flow, density, temperature, etc. One mass flowmeter can replace several measuring instruments;

4. Adjustable damping time;

5. Powerful loop self-diagnosis function, easy to find faults.

At present, in our country's import instrumentation, the mass flowmeter manufacturers of mass flowmeter occupies a large proportion, specifically, the installation of small caliber gas mass flowmeter is relatively more, is generally used in petrochemical, chemical test device.