▎ 摘　　要

NOVELTY - The liquid flow volume measuring device has an annular stainless steel detecting pipe section (2) that is provided with a PEEK liner (3), and is mounted on a fluid pipeline. Graphene nano-electrodes (4) are symmetrically arranged on inner surface of circular stainless steel made PEEK liner, for detecting a fluid signal. Graphene nano rare-earth permanent magnet (1) and electrodes are orthogonally and symmetrically installed in the annular PEEK liner, so as to provide a magnetic field required for sensor operation. USE - Liquid flow volume measuring device for detecting electrode based on graphene nano-material, used in industrial measuring area. ADVANTAGE - The graphene rare-earth permanent magnet and electrodes are arranged orthogonally and symmetrically in the annular liner, to provide magnetic field required for sensor operation, the power consumption of liquid flow volume measuring device is reduced while avoiding the alternating current interference. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the liquid flow volume measuring device. Graphene rare-earth permanent magnet (1) Annular stainless steel detecting pipe section (2) PEEK liner (3) Graphene nano-electrode (4) Fluid channel (5)