| 摘要 |
An improved method and apparatus to compensate for temperature variations in an electrical resistance corrosion measuring system. Sacrificial probes are inserted into a corrosive atmosphere at significant points, and corrosion-related losses from these probes are measured by monitoring changes in probe resistance. By comparing these changes to a reference probe, accurate determinations of corrosion are made. A novel method of automatic temperature compensation removes essentially all degrading effects of changes in temperature on the corrosion measurement system, by obtaining a reference signal which varies proportionately with temperature and counteracting instantaneous and extended temperature changes by subtracting the reference signal due to temperature variations from the uncompensated system output signal due to the combined effects of corrosion and temperature.
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