What are the characteristics and working process of the mass flow meter? the

What are the characteristics and working process of the mass flow meter? A mass flow meter can measure the mass of a fluid medium and the density of a fluid medium. The turndown of an instrument affects its own measurement accuracy, but has not been heard to cause a pressure drop. The mass flowmeter is a mass detection instrument made according to the Coriolis force effect. Therefore, the detection of the mass flowmeter is not affected by temperature, pressure, flow rate, density, viscosity, etc. What are the characteristics and working process of the mass flowmeter? of? The characteristics of the mass flowmeter The mass flowmeter has high detection accuracy, wide range, high reliability, good performance, and less post-maintenance. When measuring the mass flow of a fluid medium, the density of the fluid medium can also be measured. Its output signal is 4-20maDC analog signal, and can output frequency signal at the same time, which can be better compatible with the computer, so it can constitute a perfect intrinsic safety. Safety. system-wide. Due to the above-mentioned characteristics of mass flow meters, although they are expensive, they are very popular in industrial automation production processes, so they have been rapidly promoted and applied. The composition of the mass flowmeter The mass flowmeter is composed of sensors, transmitters and display instruments. The shape of the measuring tube of the detecting element sensor varies from manufacturer to manufacturer. For example, the measuring tube of the mass flowmeter produced by Rosemount Company in the United States is a U-shaped tube, while the measuring tube produced by the German Engels-Haus (E+H) company is a straight tube. Although the working process of the mass flowmeter is different from the manufacturer, the principle of the sensor industry is the same. The fluid medium vibrates the measuring tube by exciting the coil, and the fluid medium generates Ge force in the vibrating tube. Since the gravitational forces generated by the fluid medium at the inlet and outlet of the measuring tube are equal in magnitude and opposite in direction, the vibrating tube will be distorted. The fluid medium passes through an electromagnetic detector or a photoelectric detector to convert the deformation generated by the measuring tube into an electrical signal, which is output to the transmitter for further processing. The transmitter converts the sent electrical signal into a low signal or binary signal, then converts and amplifies, and then outputs an electrical signal (4-20mADC) or frequency and pulse signal proportional to the flow and density. According to the subject, the turndown ratio is related to the pressure drop. There really isn't much connection in terms of how it works or how it works.

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