||Evaluation of an Atmospheric Corrosion Rate Monitor as a Time-of-Wetness Meter.
Haynie, F. H. ;
Stiles., D. C. ;
||Environmental Research Center, Research Triangle Park, NC. ;Northrop Services, Inc./Environmental Sciences, Research Triangle Park, NC.
Atmospheric corrosion ;
Measuring instruments ;
Dew point ;
Field tests ;
Surface temperature ;
Time of wetness ;
Research Triangle Park(North Carolina)
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
A polarization resistance type sensor has been designed and has been evaluated with an Atmospheric Corrosion Rate Monitor (ACRM). A year of hourly average data were evaluated with respect to simultaneously collected environmental data at a site in the Research Triangle Park, NC. The system can be used as a time-of-wetness meter. The primary effect on time-of-wetness is the difference between dew point and surface temperature. Sensor responses to wetness are reproducable between sensors and are sensitive enough to detect significant environmental changes other than the primary effects of surface temperature and air moisture content.