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Working principle of rotary cup type current meter and the velocity measurement and calculation method

by:Sincerity     2021-01-28
Abstract: the working principle of rotary cup type current meter and the velocity measurement and calculation method of the information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. When the water flow to the instrument of the sensing elements cup, because of the difference of the two sides of the cup has a concave and convex shape, so the pressure will vary, the pressure difference is formed a rotational torque and prompted spin cup rotation. The faster the speed of the water, the speed of the rotary cup are more. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the working principle of rotary cup type current meter and the velocity measurement and calculation method of the article details. When the water flow to the instrument of the sensing elements & ndash; — Cup, because of the difference of the two sides of the cup has a concave and convex shape, so the pressure will vary, the pressure difference is formed a rotational torque and rotating cup. The faster the speed of the water, the speed of the rotary cup also faster; There is a certain functional relation between them, this relationship is determined through the experiment of calibration tank. Each instrument verification results are provided verification formula, its form is as follows: V = V&mdash Kn + C type; Velocity ( m/s) ; n— Cup transfer rate, is equal to the cup to the total number of turns & other; N” With the corresponding speed over & other T” The ratio of n = T ( N) ( 1/S) K - Hydraulic pitch ( m) ; C— Instrument constants ( m/s) 。 Coefficient K and C is the characterization of instrument performance, with the cup's size, shape, rotary shaft axial clearance, thimble is related to such factors as the gem bearing circular arc, smooth finish. For that part of the cooperation relations, therefore, must strictly comply with technical requirements to check 2, velocity measurement and calculation method of current meter was used to measure flow rate, is actually measuring cup in a due time when hit by the current generated by the revolution. Cup of revolution by means of instrument contact mechanism converted to electrical signals, and via wire transfer to the surface of the counter. Cup per turn 1 turn, the contact agency processing circuit, signals a counter that is. Measurer statistical serial number of the letter & other; N” And the corresponding speed over & other T” , accordingly, can press type calculation on flow velocity. Specializing in the production of current meter, trough, bashir's open channel flowmeter, ultrasonic flowmeter, ultrasonic echo sounder, etc. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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