| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electromagnetic flowmeter capable of protecting surely lined portions of measuring tubes easy to be ground down, particularly with solid matters mixed into liquid, minimizing measuring error, and enhancing reliability and durability. <P>SOLUTION: Of the electromagnetic flowmeter, an earth ring 15 fixed to a piping connecting edge face 3a of a measuring tube 2 is composed of a discoid ring body 15A and a cylindrical part 15B protruded at one with an inner circumference edge of the ring body 15A, the cylindrical part 15B covers the lined portions 12B-1 near the inner circumference aperture of the measuring tube 2 to protect from solid matters, such as slurry and the like. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
