Nortek Aquadopp Z-Cell

Nortek Aquadopp Z-Cell

Available to rent and buy

In the new Aquadopp Z-Cell, Nortek has extended the profiling range by introducing a “Cell Zero”. 

Share

In the new Aquadopp Z-Cell, Nortek has extended the profiling range by introducing a “Cell Zero”. This new feature is generated by an extra set of horizontal transducers, making the transducers operate at a different frequency (2 MHz) and provide the 2D current velocity at the level of the instrument - making it extremely efficient for gathering data in hard to reach places such as the bottom boundary layer.

The Aquadopp Z-cell is a hardware and firmware extension to the existing current profiler, the 1 MHz Aquadopp profiler. The instrument has the same specifications as the Aquadopp profiler but with the added benefit of a measurement cell located at the level of the instrument. The photos below shows how an extra set of transducers is embedded into the 1 MHz profiler head (left) and the 600 kHz head (right). Z-cell 1 MHz 600 kHz Z-cell

Because the Z-cell requires an extra set of receiver channels, the Z-cell feature is not backward compatible with electronics shipped before 2010. Please note that the 1 MHz unit has three horizontal beams (at the same azimuth angle as the slanted beams but slightly offset) while the 600 kHz version only has two horizontal beams.

The near instrument data loss in traditional current profilers comes from the combination of mounting height, the electroacoustic blanking and the offset of the first measurement cell. In many applications this means that valuable and interesting information about the ocean current is lost. The Z-cell solves this problem by measuring the horizontal velocity at the level of the instrument.

The Aquadopp Z-cell can be mounted in the frame on the bottom or in a surface buoy. Preliminary studies show that the surface current can be quite different from what is normally observed 2-3 m below the surface. The addition of an extra cell is not just "nice to have" but has a profound impact on how we view and analyze ocean current data.

In the new Aquadopp Z-Cell, Nortek has extended the profiling range by introducing a “Cell Zero”. This new feature is generated by an extra set of horizontal transducers, making the transducers operate at a different frequency (2 MHz) and provide the 2D current velocity at the level of the instrument - making it extremely efficient for gathering data in hard to reach places such as the bottom boundary layer.

The Aquadopp Z-cell is a hardware and firmware extension to the existing current profiler, the 1 MHz Aquadopp profiler. The instrument has the same specifications as the Aquadopp profiler but with the added benefit of a measurement cell located at the level of the instrument. The photos below shows how an extra set of transducers is embedded into the 1 MHz profiler head (left) and the 600 kHz head (right). Z-cell 1 MHz 600 kHz Z-cell

Because the Z-cell requires an extra set of receiver channels, the Z-cell feature is not backward compatible with electronics shipped before 2010. Please note that the 1 MHz unit has three horizontal beams (at the same azimuth angle as the slanted beams but slightly offset) while the 600 kHz version only has two horizontal beams.

The near instrument data loss in traditional current profilers comes from the combination of mounting height, the electroacoustic blanking and the offset of the first measurement cell. In many applications this means that valuable and interesting information about the ocean current is lost. The Z-cell solves this problem by measuring the horizontal velocity at the level of the instrument.

The Aquadopp Z-cell can be mounted in the frame on the bottom or in a surface buoy. Preliminary studies show that the surface current can be quite different from what is normally observed 2-3 m below the surface. The addition of an extra cell is not just "nice to have" but has a profound impact on how we view and analyze ocean current data.

Sign up to our Newsletter

© 2017 Seatronics Limited Company Registration No: 124658 | Sitemap