Laboratory evaluation of an OTT acoustic digital current meter and a SonTek Laboratory acoustic Doppler velocimeter
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Abstract
Recently, an acoustic current meter known as the OTT * acoustic digital current meter (ADC) was introduced as an alternative instrument for stream gaging measurements. The Bureau of Reclamation and the U.S. Geological Survey collaborated on a side- by-side evaluation of the ADC and a SonTek/YSI acoustic Doppler velocimeter (ADV). Measurements were carried out in a laboratory flume to evaluate the performance characteristics of the ADC under a range of flow and boundary conditions. The flume contained a physical model of a mountain river with a diversion dam and variety of bed materials ranging from smooth mortar to a cobble bed. The instruments were installed on a trolley system that allowed them to be easily moved within the flume while maintaining a consistent probe orientation. More than 50 comparison measurements were made in an effort to verify the manufacturer’s performance specifications and to evaluate potential boundary disturbance for near-bed and vertical boundary measurements. Data and results from this evaluation are presented and discussed.
Suggested Citation
Vermeyen, T., Oberg, K.A., and Jackson, P.R., 2009, Laboratory evaluation of an OTT acoustic digital current meter and a SonTek Laboratory acoustic Doppler velocimeter, 33rd International Association of Hydraulic Engineering and Research Congress, Vancouver, BC, August 9-14, 2009, p. 1-8.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Laboratory evaluation of an OTT acoustic digital current meter and a SonTek Laboratory acoustic Doppler velocimeter |
| Year Published | 2009 |
| Language | English |
| Contributing office(s) | Office of Surface Water |
| Description | 8 p. |
| First page | 1 |
| Last page | 8 |
| Conference Title | 33rd International Association of Hydraulic Engineering and Research Congress |
| Conference Location | Vancouver, BC |
| Conference Date | August 9-14, 2009 |
| Country | UNITED STATES |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |