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What are the recommended manufacturers for flow meters?
2. Principle of mass flowmeter? The principle of a mass flowmeter is based on the continuity principle of fluid flow, which measures parameters such as flow velocity and density in real time to obtain the mass flow rate of the fluid. The specific principle is as follows: the principle of fluid continuity: when a fluid flows through a pipeline, its flow velocity, density, and other parameters will remain relatively stable under certain conditions. This is the foundation of the operation of a quality flow meter. Measurement of flow velocity: Mass flow meters use flow velocity sensors to measure the flow velocity of fluids. These sensors can be vortex flowmeters, ultrasonic flowmeters, etc., which use different physical principles to accurately detect the flow velocity of fluids. Measurement of fluid density: In addition to flow velocity, fluid density is also an important measurement parameter for mass flow meters. Density sensors are used to measure the mass per unit volume of fluid, reflecting the material properties of the fluid. Calculation of mass flow rate: After obtaining the two key parameters of flow velocity and density, the mass flow meter combines these two parameters through an internal calculation module or algorithm to calculate the mass flow rate of the fluid in real time. This calculation process can reflect real-time changes in fluid flow rate, providing important data support for the control and optimization of production processes. 3. Principle of mass flowmeter
The principle of mass flowmeter is to use an external heat source to heat the measured fluid inside the pipeline, and reflect the mass flow rate of the fluid by measuring the heat changes caused by fluid flow.
. The specific explanation is as follows: Basic principle: The mass flowmeter heats the fluid through an external heat source, and the thermal energy flows along with the fluid. Measure the changes in heat during fluid flow to reflect the mass flow rate of the fluid. Measurement method: Constant heating power method: When the fluid composition is determined, the specific heat at constant pressure of the fluid is a known constant. If the heating power is kept constant, the mass flow rate can be calculated by measuring the temperature difference. Constant temperature difference method: Keep the temperature difference between the heater and the temperature measuring element constant, and calculate the mass flow rate by measuring the heating power. This method is relatively simple and easy to implement, so it is widely used in practical applications. Non contact measurement method: To avoid contamination and corrosion of temperature measuring and heating elements by the measured fluid due to direct contact, non-contact measurement methods can be used. Install the heater and temperature measuring element outside the thin-walled tube, allowing the fluid to pass through the inside of the tube, thus achieving non-contact measurement of flow rate. Range extension method: For measuring small flow rates in small-diameter pipelines, non-contact measurement methods are more suitable. When used for high flow measurement, the method of diversion can be adopted, that is, only measuring the diversion part of the flow, and then calculating the total flow to expand the range.4. How does the Coriolis mass flowmeter work?
Based on the principle of vibration, the Coriolis mas