The instruments belonging to this kind of principle include the differential pressure type and rotor type utilizing Bernoulli's theorem, the impulse type and movable tube type using the momentum theorem, the direct mass type using Newton's second law, and the target type using the fluid momentum principle. Turbo type using angular momentum theorem; vortex type, vortex type using fluid oscillation principle; Pitot tube type using total static pressure difference, and positive displacement type, enthalpy, trough, etc. Principles of Mechanics One of the flowmeters: differential pressure flowmeters: It has a particularly wide range of applications and has applications in flow measurement of closed pipes, such as fluids: single-phase, miscible, clean, dirty, viscous flow, etc. Work status: normal pressure, high pressure, vacuum, normal temperature, high temperature, low temperature, etc.; pipe diameter: from a few mm to several m; flow conditions: subsonic, sonic, pulsating flow. There are many types of differential pressure flowmeters. Differential pressure flowmeters that are frequently used in the market today include orifice flowmeters, V-cone flowmeters, Annubar flowmeters, Verabar flowmeters, Toba tube flowmeters, and bends. Tube flowmeters, open channel flowmeters, etc. Mechanics Principle Flowmeter 2: Rotor-type flowmeter: It measures the flow rate by measuring the position of a rotating part located in a DC pipeline. It is a type of variable area flowmeter. In a vertical conical tube that expands from bottom to top, the gravity of a float of circular cross-section is supported by liquid power. The float can rise and fall freely in the conical tube. It moves up and down under the action of flow velocity and buoyancy, and after balancing with the weight of the float, it is transmitted through the magnetic coupling to the dial to indicate the flow. Generally divided into glass and metal rotor flowmeter. Principles of Mechanics Flowmeter III: The vortex flowmeter: It is inserted vertically in the fluid pipeline - a cylindrical barrier, and vortices are generated alternately on the sides opposite to the fluid flow. As the fluid flows downstream to form vortex columns, we call it Karman vortex street. We define the vortex column barrier as a vortex generator. Experiments have shown that the vortex separation frequency is linear with the fluid velocity under certain conditions. Therefore, as long as the frequency of vortex separation is detected, the flow rate or flow rate of the fluid in the pipeline can be calculated. Mechanics Principle Flowmeter IV: Vortex Flowmeter: It is composed of vortex generators, detection probes and corresponding electronic circuits designed in the flow field. When fluid flows through a vortex generating body, two alternating rows of vortices are formed on both sides of the vortex generating body. This vortex is called Karman vortex street. Based on Karman vortex street theory, Strohal proposed that the frequency of Karman vortex street is proportional to the flow velocity of the fluid. The instrument uses advanced differential technology, with isolation, shielding, filtering and other measures to overcome similar problems such as poor seismic resistance, small signal data disorder and other issues, and uses a unique sensor packaging technology and protective measures to ensure the reliability of the product . There are two types of products: basic type and compound type. The basic type measures single flow signal; the composite type can simultaneously measure temperature, pressure, and flow. Each type has an integral, split structure to accommodate different installation environments. We all know that practice without correct theoretical guidance tends to have greater blindness and it is easy to take detours. It is also often less effective. Therefore, we must pay attention to the study of swimming theory knowledge, use the correct theory to guide our swimming practice, improve efficiency, and avoid detours. Article Source: Abrasion Resistant Acrylic,Abrasion Resistant Acrylic Sheet,Super Abrasion Resistant Acrylic Sheet,Abrasion Resistant Unbreakable-glass Jiangmen Kunxin new Material Technology Co.,Ltd , https://www.jmkunxinplastics.com