Method and control circuit for measuring trace constituents in a

Details Method and control circuit for measuring trace constituents in a Method and control circuit for measuring trace constituents in a

1991-07-08

1992-06-02

Raevis, Robert

Measuring and testing

Test stand

For engine

73 2331, G01M 1500

Patent

active

051176807

ABSTRACT:
Provided is a method and circuit for measuring on a real-time basis trace constituents in vehicle engine exhaust. The control circuit operates to maintain a small, constant concentration of a selected electrolyte constituent reactive with the exhaust constituent sought to be measured. The amount of current necessary to regenerate and maintain the concentration of the selected electrolyte constituent is continuously measured to generate a real-time electrical signal proportional to the mass flow of the exhaust constituent entering the electrochemical cell.

REFERENCES:
patent: 3473372 (1969-10-01), Klink
patent: 3928162 (1975-12-01), Takata
patent: 4029563 (1977-06-01), Binder et al.
patent: 4277368 (1981-07-01), Amy et al.
patent: 4321056 (1982-03-01), Dimitroff
patent: 4391690 (1983-07-01), Lin et al.
patent: 4409069 (1983-10-01), Luft
patent: 4499190 (1985-02-01), Spicer et al.
patent: 4500391 (1985-02-01), Schmidt et al.
patent: 4532023 (1985-07-01), Furst et al.
patent: 4622105 (1986-11-01), Liu et al.
patent: 4642172 (1987-02-01), Fruhwald
patent: 4735691 (1988-04-01), Green et al.

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