
NexSens data loggers are now compatible with Teledyne RD Instruments’ Workhorse Monitor Acoustic Doppler Current Profiler, allowing this unit to be fully incorporated into a real-time data system.
This ADCP is widely accepted as the instrument of choice for current and wave measurements. It offers a tremendous degree of accuracy, capable of measuring as precisely as 0.3% of water velocity, ±0.3cm/s, at 1200kHz and 600kHz beam frequencies.
Because of how sophisticated the RDI interface protocol is, not many platforms are capable of integrating with it. Thus, these bottom-deployed systems must often run standalone without a continuous uplink. With NexSens compatibility, however, users are able acquire data from the Workhorse Monitor using a variety of real-time telemetry options. That means Doppler data can be accessed at any time during a monitoring project instead of having to wait until the end of a deployment.
This real-time data affords a number of benefits. For instance, fault can be detected early, allowing the user to take corrective active immediately instead of at the end of the season when valuable data has already been lost.
Data collected from the Workhorse Monitor by a NexSens platform is stored in the original RDI PD0 Binary format, meaning the data file can still be processed by all RDI software as if it were being downloaded directly from the device.
Additionally, portions of the information from this data file can be automatically extracted and made available in NexSens iChart software as well as via a WQData online datacenter, allowing for quick report generation, alarm notification, and data sharing.
Setting itself apart from traditional three-beam systems, the Workhorse Monitor features a redundant fourth Doppler beam for improved data reliability should another beam be blocked or damaged. This fourth beam also provides an independent measurement identified as error velocity.
The high-resolution Workhorse Monitor also features BroadBand processing, which provides much better data quality, power efficiency, and error detection when compared with narrowband systems. The unit’s two-dimensional phased array transducer design significantly reduces size, weight, and deployment complexity
Integration with the industry-leading Workhorse Monitor expands NexSens data loggers to support yet another Doppler system. Using sensorBUS technology, the NexSens platform offers the most flexible and advanced submersible network available. This allows the Workhorse Monitor to be combined with a temperature string and a wide variety of water quality sensors, which can all be connected to the data logger along a single eight-wire cable bus.