Hi, I am your little control in the housekeeper, every day a little knowledge of industrial control technology, study together with me! Today we'll learn about the content and quality of flowmeter, mass flowmeter development in the 1970 s, around the world, mass flowmeter is a kind of dynamic measurement important means, in the petrochemical industry trade settlement, mass flowmeter play an important role, so you know what is the principle of mass flowmeter, we take a closer look at,

Mass flowmeter can effectively for closed pipe fluid mass flow rate accurately direct measurement of a measuring instrument, its working principle is simple, the coriolis mass flowmeter measurement principle is Newton's second law F=Ma, when the fluid flow in the pipe vibration, will produce the coriolis force is proportional to the mass flow rate, when there is no fluid flow, vibration tube does not produce distortion, the vibration tube on both sides of the electromagnetic signal detector detects the signal with phase; When the fluid passes, vibrating tube in the torque under the action of the distortion, the phase difference between the two detectors will exist, between the measurement signal around the time lag in the transmitter, this time on the flow calibration factor can determine the mass flow rate, the density of coriolis mass flowmeter measurement principle of vibration frequency and fluid density is inversely proportional to the square root, determine the fluid density by measuring the vibration frequency, so the mass flowmeter can be realized to measure fluid mass flow rate, and it can realize measurement of fluid density,