This section describes many of the custom transducers that are available for special applications for Aquadopp Current Meters, Aquadopp Current Profilers, EasyQs and EasyVs. We can also design new transducer heads specifically for your requirements. A completely new design will typically add 2-4 weeks to the time required to fill your order, and it will incur a one-time design and development fee. We use a process called "rapid prototyping" to create molds for custom heads. Once we have made the first head, extra costs for making additional heads with the same mold are minimal.
Tilt sensors may be installed in line with or perpendicular to the pressure case--the choice largely depends on which transducer you use. Tilt sensors automatically detect up and down--there are no settings to change if you turn an instrument upside down.
Two horizontal beams plus one slanted at 45°. Optimized to measure horizontal currents.
Aquadopp Current Profiler head
Three beams, symmetric about the axis of the profiler.
90-Degree Aquadopp Current Profiler head
The same geometry as the standard profiler, but designed for low-profile bottom mounting. The pressure sensor is identified with the letter "P".
Fan beam 1 head
All four beams are in a plane below or above the Aquadopp. Two beams look down slanted 25° to measure velocity and one looks ahead with a shallow angle to measure velocity closer to the surface. A fourth beam looks straight down at the bottom. This transducer is designed for measurements in channels and rivers where the mean direction of the flow stays parallel to the channel.
EasyQ head
Beams 1 and 2 face forward to measure velocity, beam 4 looks up to measure water level and beam 3 looks down at the bottom at a 45° angle.
EasyV head
Two beams measure velocity only. There is no pressure sensor or tilt sensor.
Vertical EasyQ and EasyV
To allow vertical mounting in slots or pipes.
Flat 3-beam transducer head
Three horizontal beams, each separated by 120°. The pressure sensor is centered on the top.
Horizontal slant-beam head
Use this in horizontal mounts where you want the measurement to be made just above or below the instrument. Suited for near-bottom currents.
