Method for judging the failure or end of life of a sensor elemen

Details Method for judging the failure or end of life of a sensor elemen Method for judging the failure or end of life of a sensor elemen

1998-09-30

2000-06-20

Raevis, Robert

Measuring and testing

Instrument proving or calibrating

Gas or liquid analyzer

F02B 3300

Patent

active

060763892

ABSTRACT:
In the present sensor element failure or end of life judging method, the internal impedance of a gas sensor element is measured and, if the thus measured internal impedance goes beyond a previously determined threshold value, then it is judged that the gas sensor element fails or comes to the end of life.

REFERENCES:
patent: 4252098 (1981-02-01), Tomczak et al.

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