▎ 摘　　要

NOVELTY - The sensor has a substrate (1) whose front surface is formed with two rectangular grooves, respectively. A lower side of the second rectangular groove is matched with two chutes. The first rectangular groove is matched with a working electrode (2). The second rectangular groove is matched with a reference electrode (3) that is formed on a long groove and connected with a first electrode lead (4). The chutes are connected with a second electrode lead. The first electrode lead and the second electrode lead are connected with an end of a welding plate (6). USE - Sulfonated graphene oxide water content composite sensor. ADVANTAGE - The sensor simultaneously detects matrix water content, moisture content and other physical and chemical parameters. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a Sulfonated graphene oxide water content composite sensor preparation method. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a sulfonated graphene oxide water content composite sensor. Substrate (1) Working electrode (2) Reference electrode (3) Electrode lead (4) Welding plate (6)