US 5,667,653 A · Electrochemical sensor

Abstract

The present invention provides a low-cost alternative to currently available electrochemical sensors. In general, the present invention provides an electrochemical sensor for the detection of an analyte comprising a first metallic housing member and a second metallic housing member. The first metallic housing member and the second metallic housing member are brought together in sealed connection to create a sealed enclosure therebetween. Contained within the enclosure are a first electrode, at which the analyte reacts, and a second electrode, at which a reaction complimentary to the reaction of the analyte at the first electrode takes place. An acidic electrolyte is also contained within the enclosure of the first metallic housing member and the second metallic housing member.

Claims28

Dependent claims

An electrochemical sensor comprising:

a metallic housing, the metallic housing including an inlet port therein to allow an analyte to enter the housing, the electrochemical sensor further comprising within the metallic housing at least a first electrode and a second electrode, electrical conductivity being maintained between the first electrode and the second electrode via an acidic electrolyte system having a pH less than approximately 3.0 present within the metallic housing and contacting at least a portion of the metallic housing, the first electrode comprising an electrochemically active material suitable to cause a reaction of the analyte to detect a concentration of the analyte, the electrochemical sensor further comprising circuitry adapted to measure an output signal resulting from reaction of the analyte at the first electrode during operation of the electrochemical sensor.

Dependencies are inferred from the claim text.

Electrochemical sensor

Life of this patent

Electrochemical sensor

Life of this patent

Abstract

Claims28