Flowmeters, industrially used to measure the flow of water, pulp and other media. Measurable maximum pipe diameter of 2m, and minimal pressure loss. However, the medium with low conductivity, such as gas and steam, cannot be used. And there are many types of flowmeters used in the industrial field. About the difference between various types of flowmeters, I believe that you already know a lot, here is a brief introduction to the difference between several common flowmeters. (Provided by sensor trading network) Electromagnetic flowmeter: According to Faraday's electromagnetic induction principle, when a conductive fluid flows through an electromagnetic field, the velocity of the fluid can be obtained by measuring the voltage. Electromagnetic flowmeters have no moving parts and are not affected by fluids. Measuring conductive liquids at full pipe is highly accurate. It can be used to measure the flow rate of a slurried fluid. Like other speedometers, it is a meter that measures volume flow. Ultrasonic flowmeter: The propagation time method and the Doppler effect method are commonly used ultrasonic flowmeters to measure the average velocity of a fluid. It is also an unobstructed flowmeter. If the ultrasonic transducer is installed outside the pipeline, it does not need to be inserted. Turbine Flow Meter: The fluid rotates the rotor as it flows through the turbine flow meter. The speed of rotation of the rotor is related to the speed of the fluid. The average flow rate sensed by the rotor is used to derive the flow rate or total amount. Can accurately measure clean liquids and gases. Like differential pressure throttling flowmeters, turbine flowmeters also produce irrecoverable pressure errors and require moving parts. Differential pressure flowmeters: use the most common flow measurement technology, including orifice flowmeters, V-cone flowmeters, venturis and sonic nozzles, and Verabar flowmeters, Annubar flowmeters, deltaba flowmeters, etc. Speed tube flow meters can be used to measure the flow rates of most liquids, gases, and vapors. Differential pressure flow meters have no moving parts and are widely used and easy to use. However, after the blockage, it will produce pressure loss, affecting the accuracy. The accuracy of the flowmeter accuracy measurement depends on the accuracy of the pressure measuring instrument.