Electromagnetic flowmeter type of measurement, since the instrument electromagnetic flowmeter (certified), electromagnetic flowmeters measure the force provided by the Shanghai Automation Instrumentation Co., Ltd. Shanghai Automation Instrumentation Co., force measurement (www.licesh.com) is specialized in "industrial thermocouple, RTD, compensation wire, hot wire" of the enterprise, the company of "honesty, hard service" concept, to provide you with The most high-quality products and services. Welcome to inquire! Contact: China powder. Magnetic system: its role is to generate DC or AC magnetic field uniform. DC magnetic circuit with a permanent magnet to achieve the advantage of relatively simple structure electromagnetic flowmeter, interference by the alternating magnetic field is small, but it is easy to make by measuring the polarization of the liquid electrolyte within the duct, so that the positive electrode is surrounded by negative ions, a negative electrode surrounded by positive ions, i.e., electrode polarization, and lead to increased resistance between the two electrodes, and seriously affect the normal operation of the instrument. When the pipe diameter is larger electromagnetic flowmeter specifications, permanent magnet correspondingly large, bulky and not economic model electromagnetic flowmeters, electromagnetic flowmeter so commonly used alternating magnetic field, and is 50HZ power frequency excitation generated. 10, unimpeded flow measurement pipe fittings, so there is no additional pressure loss; measurement tube no moving parts, so very long sensor life. 11, due to the induced voltage signal is filled in the whole space formed in the magnetic field, is the average of the surface pipe set, so the sensor straight pipe for a shorter length of 5 times the pipe diameter.