US 12,216,076 B2
Vascular sap measurement sensor
Fusao Shimokawa, Takamatsu (JP); and Kazuma Ishida, Takamatsu (JP)
Assigned to National University Corporation Kagawa University, Takamatsu (JP)
Appl. No. 17/767,897
Filed by National University Corporation Kagawa University, Takamatsu (JP)
PCT Filed Oct. 8, 2020, PCT No. PCT/JP2020/038182
§ 371(c)(1), (2) Date Apr. 10, 2022,
PCT Pub. No. WO2021/070913, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 2019-186455 (JP), filed on Oct. 10, 2019.
Prior Publication US 2024/0085366 A1, Mar. 14, 2024
Int. Cl. G01N 27/414 (2006.01); G01N 27/06 (2006.01); G01N 27/07 (2006.01); G01N 27/416 (2006.01); G01N 33/00 (2006.01); G01R 1/067 (2006.01); G01R 1/073 (2006.01); G01R 27/22 (2006.01)
CPC G01N 27/414 (2013.01) [G01N 27/07 (2013.01); G01N 27/416 (2013.01); G01N 27/06 (2013.01); G01N 33/0098 (2013.01); G01N 2333/415 (2013.01); G01R 1/06744 (2013.01); G01R 1/06783 (2013.01); G01R 1/0735 (2013.01); G01R 1/07357 (2013.01); G01R 1/07371 (2013.01); G01R 27/22 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A vascular sap measurement sensor comprising:
an indicator electrode probe that includes an indicator electrode which is an ion-sensitive field effect transistor;
a reference electrode probe that includes a solid reference electrode, the solid reference electrode including a base layer, a silver chloride layer, and a chloride layer, the base layer being formed of an electrically conductive body, the silver chloride layer being formed on a surface of the base layer, the chloride layer being formed on a surface of the silver chloride layer;
an electrical conductivity probe that includes an electrical conductivity electrode pair, the electrical conductivity electrode pair including a pair of electrodes disposed at a predetermined interval; and
a supporting portion that supports the indicator electrode probe, the reference electrode probe and the electrical conductivity probe arranged in parallel, wherein each of the pair of electrodes includes a metal layer that covers a top surface and side surfaces of a projection formed on a probe surface.