Acoustic Doppler Current Profiler 300 kHz
Acoustic Doppler Current Profilers (ADCP) are hydroacoustic instruments, similar to sonars. ADCPs measure current speed and direction at multiple predetermined depths simultaneously. ADCPs use the Doppler effect of sound waves that are scattered by particles in seawater over a depth range.
The travelling time of sound waves gives an estimate of distance, and the increase (blue shift) or decrease (red shift) in frequency is converted into water current velocities.
RDI Teledyne Acoustic Doppler current profilers are configured to monitor water currents at several frequencies. The instruments contain sensors for temperature, pressure, tilt and compass heading. RDI ADCPs use four beams to measure current velocity so that the fourth beam/transducer can substitute for a blocked or damaged beam or it can be used to increase data accuracy. The RDI Workhorse ADCP operating at 300 kHz monitors currents within a range up to 160 metres.
Individual instruments of the above category, which are (or have been) connected to our observatories. Click an instrument for detailed information.
|RDI Workhorse Monitor ADCP 300 kHz (15551)||Ocean Networks Canada Offices|
|RDI Workhorse Monitor ADCP 300 kHz (9273)||Folger Passage|
|RDI Workhorse Monitor ADCP 300 kHz (SN 1600)||Saanich Inlet Central Node|
|RDI Workhorse Monitor ADCP 300 kHz (SN 17955)||Marine Technology Centre|
|RDI Workhorse Monitor ADCP 300 kHz (SN 2940)||Marine Technology Centre|
|RDI Workhorse Sentinel ADCP 300 kHz (SN 24447)||Marine Technology Centre|
Click the instrument categories below for descriptions and lists of instruments belonging to that category.