What is the unit of r on the water flow meter instrument

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1. What are the types of mass flow meters?

2. What are the types of flow meters?

What are the types of flow meters? This article provides a detailed introduction to the commonly used types of flow meters; If you think the answer is helpful to you, please kindly give a thumbs up to the US Weidun VTON flowmeter! Common types of flow meters

1. Vortex flowmeter Intelligent imported vortex flowmeter is researched and produced based on the Karman vortex principle, mainly used for flow measurement of industrial pipeline medium fluids, such as gas, liquid, vapor and other media. Its characteristics are small pressure loss, large range, high accuracy, and almost unaffected by parameters such as fluid density, pressure, temperature, viscosity, etc. when measuring volumetric flow rate under working conditions. No movable mechanical parts, therefore high reliability and low maintenance. The instrument parameters can be stable for a long time. The vortex flowmeter adopts a piezoelectric stress sensor with high reliability and can operate within a temperature range of -20 ℃ to+250 ℃. It has both analog standard signals and digital pulse signal outputs, making it easy to use in conjunction with digital systems such as computers. It is a relatively advanced and ideal measuring instrument. Vortex flowmeter is a new type of flow measurement instrument that rapidly developed in the 1950s and 1960s with the development of electronic technology. It is a triangular cylinder type vortex generator set up in the fluid, which alternately generates regular vortices from both sides of the vortex generator. These vortices are called Karman vortices, and the vortex columns are asymmetrically arranged downstream of the vortex

generator. For example, the new imported electromagnetic flowmeter of Weidun VTON brand began to be sold in 1968; Electromagnetic flowmeter is an induction instrument manufactured according to Faradays law of electromagnetic induction, used to measure the volumetric flow rate of conductive medium inside pipes. The measurement principle of electromagnetic flowmeter is based on Faradays law of electromagnetic induction. The measuring tube of the flowmeter is a non-magnetic alloy short tube lined with insulating material. Two electrodes are fixed on the measuring tube by passing through the tube wall along the diameter direction. The electrode tip is basically flush with the inner surface of the lining. When the excitation coil is excited by two pulse waves, a working magnetic field with a magnetic flux density of B will be generated in the direction perpendicular to the axis of the measuring tube. At this point, if a fluid with a certain conductivity flows through the measuring tube. Induce an electromotive force E by cutting the magnetic field lines. The electromotive force E is proportional to the flux density B of the magnetic stove, and measure the product of the inner diameter d of the tube and the average flow velocity v. The electromotive force E (flow signal) is detected by the electrode and sent to the converter through a cable. After amplifying and processing the flow signal, the converter can display the fluid flow rate and output signals such as pulses and analog currents for flow control and regulation. Spiral vortex gas flowmeter can be widely used in industries such as petroleum, chemical, power, metallurgy, and urban gas supply to measure various gas flow rates. It is currently the preferred product for oil

What is the unit of r on the water flow meter instrument

1. What are the types of mass flow meters?

2. What are the types of flow meters?

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