Laboratory investigation into the precision and accuracy of various mechanical-current meters are presented. Horizontal-axis and vertical-axis meters that are used for the measurement of point velocities in streams and rivers were tested. Meters were tested for repeatability and response to oblique flows. Both horizontal- and vertical-axis meters were found to under- and over-register oblique flows with errors generally increasing as the velocity and angle of flow increased. For the oblique flow tests, magnitude of errors were smallest for horizontal-axis meters. Repeatability of all meters tested was good, with the horizontal- and vertical-axis meters performing similarly.
Additional publication details
Repeatability and oblique flow response characteristics of current meters
Publ by ASCE
New York, NY, United States
Larger Work Title:
Proceedings - National Conference on Hydraulic Engineering
Proceedings of the National Conference on Hydraulic Engineering