ACM (Atmospheric Corrosion
Monitor) type corrosion sensor
In this sensor,
an ammeter is connected between a base plate of carbon steel and an Ag
electrode, and the current which passes between the two electrodes is measured
as the sensor output. Because the sensor output increases as environmental
corrosiveness becomes more severe, it is possible to estimate and evaluate
factors related to environmental corrosiveness (Corrosion
rate (µm/year), wetting condition, amount of deposited sea salt, etc.) by analyzing the magnitude and change over time in the sensor
output. This sensor, which is being used to develop evaluation methods for
environmental corrosiveness, centering on the Corrosion Group, is commercially
available in products approved by the Corrosion Center of the Japan Society of
Corrosion Engineering, and is widely used in a variety of fields.
Specification
|
Substrate |
Fe or Zn |
|
Sensor output |
0.1nA〜1mA |
|
Detection limit of
corrosion rate |
2µm/year |
|
Detection of sea salt |
0.001g/m2〜10 g/m2 |
|
Time for |
2 month (In an oceanic region at the
exposure. ) |
|
Interelectrode
resistance |
10GΩ or more |
Syrinx.
Inc
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