The development history of smart electromagnetic flowmeter

Smart electromagnetic flowmeter is a kind of precision measurement instrument, which is widely used in industrial, chemical, power, electronics, machine tools, ships, metallurgy, petroleum, medical and other industries. With the continuous development of the times, the technology of smart electromagnetic flowmeters has been continuously improved and the fields of application have become more and more extensive. In the process of using the smart electromagnetic flowmeter, we need to master the history of its development. This is very important for the user's use. The following Xiaobian will introduce the development history of the smart electromagnetic flowmeter.

After the Second World War, with the rapid development of the international economy and science and technology, flow meters have become increasingly important and flow meters have rapidly developed. For example, in the 1950s, the main flowmeters used in industry have three kinds of orifice plates, pitot tubes, and floater meters, and the range of measured media is also narrow, but the measurement accuracy has begun to meet some low-level production. need. In the past 50 years, in order to meet the needs of different kinds of fluid characteristics and different flow conditions, flowmeters that have been developed and put into use have flowmeters, volumetric flowmeters, momentum flowmeters, and electromagnetic flowmeters. Ultrasonic flowmeters and other dozens of different types of measuring principle of the new flowmeter.

Flow measurement is widely used in industrial and agricultural production, national defense construction, scientific research, foreign trade and daily life in various fields. With the development of industrial production to the direction of automation and the development of people's daily life, flow meters are used in the entire production of meters. As the proportion increases, the data show that the flow meters used in different industrial sectors account for 15-30% of the total number of meters. The metering of the flow meter directly affects the operation and cost accounting of the company to a great extent, and there are more than one hundred types of flowmeters used in domestic and foreign markets. The reason why so many varieties are so far is that there has not yet been found a flow meter that can apply all flow measurements. Each product has its specific applicability and also has its limitations. Due to the complexity of flow measurement conditions and the rapid development of science and technology, people put forward higher and higher requirements for flow metering. The current situation of flow metering is far from meeting the needs of production and life. There are still a large number of technical issues that need further study and solution. The main problems are as follows: The variety, specification, accuracy, and reliability of flow meters cannot fully meet the requirements. Especially for the measurement of corrosive fluids, dirty fluids, highly viscous fluids, multiphase fluids, extra-large flowrates, and small flowrates, effective measurement methods need to be developed; standard flowmeters cannot meet the verification requirements of flowmeters, especially in the absence of on-site operations. Real-time verification of the technical means of the flowmeter. In response to the above problems, with the development of science and technology, people use the latest technological achievements to develop new flowmeters, and introduce new technologies such as ultrasonics, lasers, electromagnetics, nuclear technology, and microcomputers into the flow measurement field, enabling indirect measurement of no-contact and no-moving parts. With the development of technology, flow sensors tend to be electronic, digital, and multi-functional, opening up new areas for flow measurement. The new flowmeter has the characteristics of wide range, intelligent, high reliability, low price, and easy maintenance.