Fluid flow measuring method based on electromagnetic principle

• Main Authors: BAO DEXIAN, ZHU JIDONG
• Format: Patent
• Language: Chinese; English
• Published: 04.05.2016
• Subjects: MEASURING; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; PHYSICS; TESTING

The invention discloses a fluid flow measuring method based on an electromagnetic principle. The method comprises the steps that conducting fluid flows into a measuring tube and flows in the direction vertical to magnetic lines in an alternating current magnetic field produced by an electromagnetic coil; the conducting fluid cuts the magnetic lines to produce induced electromotive force, and an electrode detects and transmits the electromotive force to an electro-optical converter which transmits converted digital electromotive force data to a signal receiver through optical fibers; the signal receiver transmits digital signals to a main control computer after conversion, and the main control computer calculates instantaneous flow and accumulated flow of the conducting fluid according to the electromotive force data. According to the fluid flow measuring method, a photovoltaic conversion technology is used, electromotive force signals are transmitted to the main control computer through the optical fibers for