High molecular humidity sensor and manufacturing method thereof

Details High molecular humidity sensor and manufacturing method thereof High molecular humidity sensor and manufacturing method thereof

1991-07-31

1994-04-19

Niebling, John

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204434, 205317, G01N 2726

Patent

active

053042956

ABSTRACT:
A high molecular humidity sensor in which polypyrrole being of conductive high molecule is electrochemically polymerized and then reduced whereby ionic conductive property is given go that humidity sensibility becomes excellent. The sensor is a structure in which polypyrrole doped with dodecylsulfate anion DS.sup.- is stuck in film form on the surface of a fine electrode, and cations Na.sup.+, K.sup.+ are permeated to said polypyrrole whereby salt is formed and humidity sensibility is exhibited in the region of 10.sup.4 -10.sup.6 .OMEGA., and humidity sensing speed becomes within several tens of seconds to several minutes.

REFERENCES:
patent: 4582575 (1986-04-01), Warren et al.

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