Method of manufacturing an electrochemical device
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United States of America Patent
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Jul 24, 1990
Issued Date -
N/A
app pub date -
Feb 17, 1989
filing date -
Mar 17, 1986
priority date (Note) -
Expired
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Abstract
An electrochemical device for detecting a measurement fluid, which includes a planar solid electrolyte body, a first electrode formed on the planar solid electrolyte body and substantially exposed to the measurement fluid, a second electrode formed on the planar solid electrolyte body and substantially isolated from the measurement fluid, a porous layer disposed in direct contact with the second electrode, and a device for applying an electric current so as to flow from the second electrode to the first electrode. The device may further include a third electrode, and a fourth electrode substantially directly exposed to the measurement fluid. In this case, the first and third electrodes are exposed to the measurement fluid through a thin flat space or porous layer having a predetermined diffusion resistance to the measurement fluid, and a current regulating device is connected between the third and fourth electrodes, for controlling an atmosphere adjacent to the first electrode.
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