An intercomparsion study using electromagnetic three-component turbulent velocity probes

An intercomparison study was performed with four Russian-made, electromagne tic probes capable of measuring three components of oceanic turbulent veloc ities and two single-axis velocity sensors familiar to western scientists, namely, a hot-film anemometer and an airfoil shear probe. The intercomparis on measurements were conducted in a water flume rank in the Marine Scientif ic Production Corporation on Fishery Technology facility in Kaliningrad, Ru ssia. Measurements were obtained in the turbulent region generated behind a grid at three different mean how speeds (0.7, 1.1, and 1.7 m s(-1)). In al l the intercomparison runs, data from the electromagnetic velocity probes b ehave in a manner expected from the sensor and filtering characteristics. O n the average, turbulent velocity variances from the electromagnetic probes are about +/- 20% of those from both the hot-film and airfoil probes.