Detecting Coolant Corrosivity with Electrochemical Sensors

R Baboian; GS Haynes

doi:10.1520/STP29218S

SYMPOSIA PAPER Published: 01 January 1980

STP29218S

Detecting Coolant Corrosivity with Electrochemical Sensors

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The corrosivity of engine antifreeze coolants depends on many factors including inhibitor concentration. Degradation of these antifreeze inhibitors occurs with time in service and therefore leads to increased corrosivity. This paper describes a low cost coolant sensor capable of detecting the corrosivity of engine coolant in-situ. The system is based on electrochemical principles and consists of a sensing probe, electronics package, and an indicating device. Electrochemical theory and supporting data for the system will be presented.

Author Information

Baboian, R

Texas Instruments, Inc., Electrochemical and Corrosion Laboratory, Attleboro, Mass.

Haynes, GS

Texas Instruments, Inc., Electrochemical and Corrosion Laboratory, Attleboro, Mass.

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Details

Developed by Committee: D15

Pages: 169–189

DOI: 10.1520/STP29218S

ISBN-EB: 978-0-8031-4774-4

ISBN-13: 978-0-8031-0331-3

Detecting Coolant Corrosivity with Electrochemical Sensors

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