Electrostatic capacity type liquid state detecting sensor

Details Electrostatic capacity type liquid state detecting sensor Electrostatic capacity type liquid state detecting sensor

2005-05-25

2008-03-04

Williams, Hezron (Department: 2856)

Measuring and testing

Liquid level or depth gauge

Immersible electrode type

Reexamination Certificate

active

07337662

ABSTRACT:
An electrostatic capacity type liquid state detecting sensor includes an outer tubular electrode, and an inner electrode disposed within the outer tubular electrode and having an insulation layer at an outer surface portion to be brought into contact with liquid contained in a container for detection of a state of the liquid, wherein the thickness of the insulation layer is less than 500 μm and not less than 100 μm.

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Wah On Ho et al.; “Electrochemical Sensor for Measurement of Urea and Creatinine in Serum Based on ac Impedance Measurement of Enzyme-Catalyzed Polymer Transformation”; Analytical Chemistry, Vo. 71, No. 10, May 15, 1999, pp. 1940-1946.

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