Skip to main content
U.S. flag

An official website of the United States government

Field comparison of optical and clark cell dissolved-oxygen sensors

January 1, 2005

Three multi-parameter water-quality monitors equipped with either Clark cell type or optical type dissolved-oxygen sensors were deployed for 30 days in a brackish (salinity <10 parts per thousand) environment to determine the sensitivity of the sensors to biofouling. The dissolved-oxygen sensors compared periodically to a hand-held dissolved oxygen sensor, but were not serviced or cleaned during the deployment. One of the Clark cell sensors and the optical sensor performed similarly during the deployment. The remaining Clark cell sensor was not aged correctly prior to deployment and did not perform as well as the other sensors. All sensors experienced substantial biofouling that gradually degraded the accuracy of the dissolved-oxygen measurement during the last half of the deployment period. Copyright ASCE 2005.

Publication Year 2005
Title Field comparison of optical and clark cell dissolved-oxygen sensors
DOI 10.1061/40792(173)312
Authors J.M. Fulford, W.J. Davies, L. Garcia
Publication Type Conference Paper
Publication Subtype Conference Paper
Index ID 70027312
Record Source USGS Publications Warehouse
Was this page helpful?