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DVL-150K Phased

Phased-Array Doppler Velocity Log 150kHz

The DVL-150K is a medium-frequency Doppler Velocity Log designed for reliable underwater velocity measurement and navigation. With phased array technology, automatic bottom/water tracking, and robust depth capability, it offers an ideal balance of range, accuracy, and integration flexibility for ROVs, AUVs, and subsea operations.

DVL-150K-Phased Doppler Velocity Log Phased

DVL-150K-Phased

Key Features

  • Optimized 150 kHz Frequency for Extended Range
    Provides an ideal balance between measurement range and accuracy, suitable for medium-depth underwater operations.
  • High-Precision Velocity Measurement
    Delivers accurate velocity data with up to ±0.3% accuracy, ensuring reliable navigation and positioning performance.
  • Robust Depth Capability
    Supports up to 500 m bottom tracking depth (model dependent), with optional high-pressure resistance for deeper deployments.
  • Compact & Modular Design
    Separate transducer and electronics housing enables flexible integration into ROVs, AUVs, and USVs.
  • Versatile Application Support
    Suitable for underwater navigation, station keeping, seabed inspection, offshore engineering, and scientific research.

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Overview

System Composition

The Doppler Velocity Log (DVL) consists of two main components: a phased array transducer and an electronics housing.

  • The phased array (pressure-resistant) is responsible for sensing velocity-sensitive acoustic signals.
  • The electronics housing (non-pressure-resistant) performs signal preprocessing, acoustic signal analysis, velocity calculation, and acoustic signal transmission.

The electronics housing is installed inside a dry compartment, while the transducer is mounted in the wet end.

Specifications

Specification DVL-150K-I DVL-150K-II
Working Frequency150 kHz150 kHz
Array TypePhased ArrayPhased Array
Velocity Range-10 kn to +15 kn (customizable)-10 kn to +15 kn (customizable)
Velocity AccuracyBetter than 0.5% ± 0.2 cm/sBetter than 0.3% ± 0.2 cm/s
Maximum Bottom Tracking Depth300 m500 m
Current Profiling Capability10 m fixed layer10 m fixed layer
Acoustic Array Pressure Resistance2.4 MPa (customizable)10 MPa (customizable)
Velocity Measurement ModesBottom Tracking / Water Tracking (auto switching)Bottom Tracking / Water Tracking (auto switching)
Sound Speed CorrectionNot requiredNot required
Operating Voltage18 – 36 VDC18 – 36 VDC
Average Power Consumption≤ 30 W≤ 70 W
Electronic Chassis Dimensions232 × 202 × 112 mm300 × 230 × 160 mm
Phased Array DimensionsΦ225 × 55 mmΦ225 × 82 mm
WeightPhased Array: ~9 kg; Electronics: ~5 kgPhased Array: <15 kg; Electronics: <9 kg
Communications RS-422; PD6 (ASCII);
Bottom Track: :BI, :BD;
Water Track: :WI, :WD 		RS-422; PD6 (ASCII);
Bottom Track: :BI, :BD;
Water Track: :WI, :WD

Applications


    The DVL-150K series is designed for a wide range of underwater navigation and positioning applications, including:

    • ROV/AUV navigation: Provides real-time velocity and positioning support for autonomous and remotely operated underwater vehicles.
    • USV motion control: Enables precise speed over ground and station-keeping for unmanned surface vessels.
    • Subsea inspection: Supports pipeline inspection, seabed survey, and underwater structure monitoring.
    • Offshore engineering: Used in installation, construction, and positioning tasks in offshore oil and gas operations.
    • Scientific research: Applied in oceanographic surveys, current profiling, and environmental monitoring.

Explore the DVL-Phased Series

The DVL-Phased Series includes the versatile 600 kHz model for mid-range missions and the long-range 300 kHz model for deep-sea operations. Whether for coastal trials, ocean monitoring, or deep-water engineering and system integration, the DVL-Phased Series delivers accurate, stable, and reliable underwater velocity and navigation performance powered by phased-array beamforming and advanced bottom-tracking capability.  


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AUV Communication & Navigation Kit

Compact Navigator & Underwater Acoustic Modem

Designed for Autonomous Underwater Vehicles (AUVs), the AUV Communication & Navigation Kit delivers high-precision navigation and reliable underwater communication in a unified solution.

  • NAVS-3000 Compact Navigator — Provides INS-based positioning, DVL velocity measurements, and depth data for precise real-time navigation.
  • UAC-08160X-OEM Underwater Acoustic Modem — Ensures stable, long-range underwater communication across multiple frequency bands.

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Documents


DVL-150K-Phased Datasheet