Knowledge point! Working principle of Yokogawa mass flow meters

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This article is reproduced from: http://www.china-yokogawa.com/News/397.html. Keywords of this article: Yokogawa mass flow meters. http://www.china-yokogawa.com/ Previously, we discussed the installation considerations for Yokogawa mass flow meters as well as other related topics; however, we have not explained in detail the working principle of these mass flow meters. Well then, everyone, follow the editor to take a look together. Yokogawa mass flow meters can only measure the mass flow rate of gases or liquids; they cannot control the flow rate. They output the flow rate value through analog current, voltage, or serial communication. Mass flow controllers, on the other hand, are instruments that can both control and measure the flow rate. The setpoint of the mass flow controller can be provided via an analog voltage, an analog current, or a PLC or computer. In addition to the measuring component, the mass flow controller itself is equipped with an electromagnetic piezoelectric valve or a control valve, thereby forming a closed-loop system that is used to control the mass flow rate of the fluid. Since the Yokogawa mass flow meter uses a heat-sensitive measurement principle, changes in gas pressure or temperature do not affect the measurement results. It uses heat-sensitive measurement to determine the flow rate by assessing the mass of molecules carried away by the separated molecules. A mass flow meter is a fast, flexible, efficient, accurate, reliable, and stable flow measurement instrument that will find even wider use in fields such as chemical industry and petroleum processing. There are two common forms: indirect mass flow meters and direct mass flow meters. There are 3 main types of indirect mass flow meters: a combination of a throttling flow meter and a volumetric flow meter, a combination of a throttling flow meter and a densitometer, and a combination of a volumetric flow meter and a densitometer ； There are various types of direct mass flow meters, such as gyroscopic, twin-impeller, calorimetric, and momentum-type ones. Shanghai Mengyan Automation Equipment Co., Ltd. Address: Room 1119, Jiahong Building, No. 639 Guangfulin Road, Songjiang, Shanghai. Contact person: Xu Gong. Mobile phones: 18616582302 / 18616582330. QQ: 764861476. Email: sales@shmyzdh.com