• 专利标题:   Sensing device useful for determining acoustic velocity comprises microsensors configured to detect electrical conductivity, and a graphene layer coating the microsensors and prevents biofouling of the microsensors.
  • 专利号:   US2019293540-A1
  • 发明人:   OILER J K, LERNER M B
  • 专利权人:   US SEC OF NAVY, SPAWAR SYSTEMS CENT PACIFIC
  • 国际专利分类:   C09D001/00, C09D005/08, C09D005/16, G01N015/06, G01N033/18
  • 专利详细信息:   US2019293540-A1 26 Sep 2019 G01N-015/06 201979 Pages: 8 English
  • 申请详细信息:   US2019293540-A1 US927833 21 Mar 2018
  • 优先权号:   US927833

▎ 摘  要

NOVELTY - Sensing device (200) comprises many microsensors (220A) configured to detect electrical conductivity, and a graphene layer (240A) coating the microsensors, where the graphene layer prevents biofouling of the microsensors. USE - The device is useful for determining acoustic velocity. ADVANTAGE - The device: is simple, small and cost effective; has longer lifetime; utilizes less power overall than one that would require a pump; and has minimized biofouling and corrosion on surfaces other than electrical conductivity sensors, e.g. ship hulls. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a method (m1) of fabricating the sensing device comprising growing a graphene layer directly on a top surface of each of many electrodes (230A) configured for sensing electrical conductivity, where the graphene layer prevents biofouling and corrosion of the electrodes, and depositing the electrodes, with the graphene grown on the top surface of each electrode, on a top surface of an insulating material, so that a bottom surface of each of the electrodes contacts the top surface of the insulating material; and (2) a method (m2) for fabricating the sensing device comprising growing at least one graphene layer, transferring the graphene layer to a top surface of each of many electrodes configured for sensing electrical conductivity, where the graphene layer prevents biofouling and corrosion of the electrodes, depositing the electrodes on a top surface of an insulator material, so that a bottom surface of each of the electrodes contacts the top surface of the insulator material. DESCRIPTION OF DRAWING(S) - The figure shows a cross-sectional view of the sensing device in an aqueous solution. Sensing device (200) Substrate (210) Outer microsensors (220A) Electrode (230A) Graphene layer (240A)