Why do mass flow meters need temperature and pressure compensation?

Abstract: Why do mass flow meters need temperature and pressure compensation? The information is provided to you by the excellent manufacturers of flowmeters and flowmeters. In fluid measurement, as long as the fluid has different working conditions (two parameters of temperature and pressure), the density of the fluid will change. Whether it is necessary to compensate the measured fluid is mainly determined by the properties of the fluid we are measuring. We often use The vast majority of streams. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is why mass flowmeters need temperature and pressure compensation? Article details. In fluid measurement, as long as the fluid has different working conditions (two parameters of temperature and pressure), the density of the fluid will change. Whether it is necessary to compensate the measured fluid is mainly determined by the properties of the fluid we are measuring. We often use The vast majority of flowmeters can only directly measure the volume of the fluid, but not the mass. If we only measure the volume of the fluid under the current working conditions, the meter can display it directly. But if the electromagnetic flowmeter of the meter is displayed as fluid In the case of mass, the data of the fluid mass is obtained by calculating the product of the fluid volume parameter and the density parameter multiplied by the instant sampling (mass = density X volume) instead of directly measuring the mass of the fluid. As a meter, it measures The data must be accurate. If we want to measure the quality of the fluid, there is a problem involved: whether the density of the fluid is constant. If the density of the fluid is always the same, then just fix the density parameter of the fluid on the meter, but in the fluid When the density of the fluid is constantly changing, what should I do? At this time, the density parameters of the fluid must be adjusted continuously according to the current working conditions of the fluid. In flow measurement, the adjustment of the fluid density parameters according to the working conditions of the fluid The method is density compensation. The pressure compensation mentioned by the landlord is actually to adjust the value of the fluid density according to the pressure parameters in the fluid working condition. If we only measure the temperature or pressure in the fluid working condition according to the two parameters The practice of adjusting the density parameter by a certain parameter is called temperature compensation or pressure compensation, but if the density parameter is adjusted according to the parameters of temperature and pressure at the same time, it is called temperature pressure compensation (referred to as temperature and pressure compensation). When the measured fluid of the flowmeter is a liquid, its density parameter does not change much with the change of the fluid working condition, and there is no need to adjust the density parameter. However, when the fluid is a gas, it will not change at different temperatures and pressures. The density of the gas varies greatly. At this time, it is necessary to adjust the density of the gas to calculate the mass of the fluid (mass = density X volume) according to the parameters of the instant temperature and pressure that the fluid flows through. Now the flow meter has been made very advanced, Some of them already have the automatic compensation function. As long as we set the meter well and input the temperature and pressure signals that meet the input requirements of the meter, the meter will automatically find out the current The fluid density of the working condition, calculates and displays the instant mass flow parameters. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Why do mass flow meters need temperature and pressure compensation? 》

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