What does the number after flowmeter ft represent?

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1. What type of flow meter does MFC belong to? MFC stands for Mass Flow Controller and is a type of mass flow meter that is a specialized device for accurately measuring and controlling fluid mass flow rate. 1. Working principle based on thermal diffusion principle to achieve flow measurement and control: When the fluid flows through the sensor, it will take away heat, and the mass flow rate of the fluid can be calculated by measuring the heat carried away. Then, a feedback control system can be used to achieve precise flow adjustment Mainstream Application Scenarios - Semiconductor Manufacturing: Accurately controlling the flow rate of process gases such as silane and ammonia during chip production to ensure process stability and product quality - Chemical Industry: Accurately regulating the flow rate of various gases or liquids in chemical reactions to ensure smooth reactions and stable product quality - Food and Beverage Industry: Controlling the flow rate of gases such as carbon dioxide during beverage filling and food packaging to ensure product taste and quality Flow meters are the most accurate type of flow meters. They use mechanical measuring elements to continuously divide the fluid into individual known volume parts, and measure the total volume of the fluid based on the number of times the measuring chamber repeatedly fills and discharges that volume part of the fluid. Volumetric flow meters, differential pressure flow meters, and float flow meters are among the three most widely used types of flow meters, commonly used for measuring the total amount of expensive media such as oil and natural gas.

2、 Ultrasonic flowmeter is mainly an instrument that measures flow by detecting the effect of fluid ac

tivity on ultrasonic beams (or ultrasonic pulses). The propagation time method and Doppler effect method are commonly used in ultrasonic flow meters to measure the average velocity of fluids. Like other speedometers, it is an instrument for measuring volumetric flow rate. It is an unobstructed flow meter, and if the ultrasonic transmitter is installed outside the pipeline to measure Huiming, there is no need to insert it. It is suitable for almost all liquids, including slurries, with high accuracy. But the contamination of the pipeline can affect accuracy.

3、 Electromagnetic flowmeter is an instrument made according to Faradays law of electromagnetic induction for measuring conductive liquids. When a fluid with conductivity flows through an electromagnetic field, the velocity of the fluid can be obtained by measuring the voltage. Electromagnetic flow meters have no moving parts and are not affected by fluids. The accuracy of measuring conductive liquids is high when the tube is full. Electromagnetic flow meters can be used to measure the flow velocity of slurry fluids. Electromagnetic flow meters are widely used in various fields, and large-diameter instruments are more commonly used in water supply and drainage engineering; Small and medium-sized calibers are commonly used in high demand or difficult to measure applications, such as cooling water control for blast furnace tuyere in the steel industry, measurement of pulp and black liquor in the paper industry, strong corrosive liquids in the chemical industry, and slurry in the non-ferrous metallurgy industry; Small caliber and micro caliber are commonly used in places with hygiene requirements such as the pharmaceutical industry, food industry, and biochemistry

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