Doppler current meter

Doppler current meter

[′däp·lər ‚kər·ənt ‚mēd·ər]
(engineering)
An acoustic current meter in which a collimated ultrasonic signal of known frequency is projected into the water and the reverberation frequency is measured; the difference in frequencies (Doppler shift) is proportional to the speed of water traveling past the meter.
References in periodicals archive ?
Contract notice: Market for the acquisition of a ctd chassis, equipped with hydrological bottles, a rosette engine of a ctd probe and a doppler current meter (ladcp) for imago service unit of the ird.