DVL-300K Phased-array
Doppler Velocity Log Phased-array 300kHz
The DVL‑300K‑Phased is a long‑range 300 kHz phased‑array Doppler Velocity Log (DVL), designed for deep‑water and long‑range operational platforms such as AUVs, ROVs and marine engineering equipment. Focused on stable velocity measurement and navigation at large altitudes and water depths, it leverages low‑frequency phased‑array beamforming to deliver longer bottom‑tracking range, superior penetration capability and robust performance against complex seabed conditions. Balancing long‑distance operation and high‑precision measurement, it acts as a core navigation sensor for GPS‑denied deep‑sea underwater environments.
| Operating Frequency: 300 kHz |
| Array Type: Phased Array (4-beams) |
| Max Bottom Tracking Altitude: 200 m |
| Bottom Tracking Velocity Range: ±7.5 m/s |
| Bottom Tracking Accuracy: ±0.3% ±1 mm/s(License-required), >1% (license‑free) |
| Bottom Tracking Resolution: 1 mm/s |
| Water Profiling Range: 4.5-150m |
| Maximum Operating Depth: 300 m (options: 3000 m, 6000 m) |
| Current Profiling Capability: 10 m fixed layer |
| Velocity Measurement Modes: Bottom Tracking / Auto Current Tracking (automatic switching) |
| Operating Voltage: 24±4V DC |
| Average Power Consumption: ≤ 30 W |
| Electronic Chassis (Excluding Plug): Integrated V1.0: Ф165 mm × 250 mm; Split‑type V2.0: 150*135*105mm |
| Phased Array Dimensions: Integrated V1.0: Ф145 ± 1 mm Array Diameter (Acoustic Radiation Surface); Split‑type V2.0: Ф135*32.5mm |
| Weight: Integrated V1.0: approx.9kg ; Split‑type V2.0: Transducer approx. 2 kg |
| Communications: RS-422; Output Data Format: PD6 (ASCII); Frames Transmitted in Bottom Tracking Mode：:BI, :BD Frames Transmitted in Water Layer Tracking Mode：:WI, :WD |
System Composition
The DVL-300K-Phased Doppler Velocity Log consists of two main components: a phased-array transducer and an electronic chassis, featuring an integrated waterproof design.
- Phased-array transducer (waterproof): Responsible for transmitting and receiving acoustic signals, capturing velocity-sensitive Doppler shifts.
- Electronic chassis: Handles signal preprocessing, acoustic analysis, velocity calculation, and acoustic transmission functions.
This flexible design supports both separate configuration and fully integrated options, ensuring adaptability to different vehicle layouts and integration requirements.
Applications
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Autonomous Underwater Vehicles (AUVs)
The DVL-300K-Phased Doppler Velocity Log is well-suited for both compact and large-diameter AUVs, providing highly accurate bottom velocity and altitude measurements. This enables precise navigation, path planning, and control even in GPS-denied environments. -
Remotely Operated Vehicles (ROVs)
For inspection-class ROVs, the DVL-300K-Phased ensures reliable bottom tracking and altitude data, supporting stable maneuvering and positioning in near-bottom or confined subsea environments. -
Uncrewed Surface Vessels (USVs)
On surface platforms, the DVL-300K-Phased delivers dependable speed-over-ground measurement and drift compensation, maintaining navigation accuracy when GPS signals are unavailable, degraded, or intentionally denied.
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