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SBE-218D Compact Single-Beam Echosounder
Compact Single-Beam Echosounder for Small Unmanned Surface Vehicle 218 kHz / 50 kHz
The SBE-218D is a high‑frequency single‑beam echosounder developed for small inland‑water survey unmanned surface vehicles (USV). It adopts an integrated deck‑unit‑free design, featuring compact dimensions and powerful performance. This dual‑frequency Chirp single‑beam echosounder features a primary survey frequency of 220 kHz and a backup deep‑water frequency of 50 kHz, covering measurement scenarios from 0.15 m to 450 m.
Built‑in adaptive bottom‑tracking algorithm greatly mitigates interferences induced by roll/pitch motion of small USVs and side‑slope clutter, ensuring continuous and stable bathymetric data under rough water conditions. The equipment supports simplified one‑touch start‑stop operation for user‑friendly control. It is suitable for routine river‑lake topographic survey as well as maximum‑depth sounding, delivering excellent overall operational efficiency and environmental adaptability.
SBE-218D Compact Single-Beam Echosounder
Key Features:
- Dual-Frequency Coverage 218 kHz/50 kHz dual-frequency design delivers a 0.15 m–450 m depth range for both shallow river-lake survey and deep open-water sounding.
- Excellent Anti-Interference Performance Adaptive bottom-tracking algorithm filters clutter and noise, supporting ±10° roll/pitch tolerance for stable data output in rough water.
- High Survey Precision Advanced Chirp technology ensures high signal-to-noise ratio, providing 1 cm resolution and 0.1%h ±1 cm accuracy for reliable turbid water measurement.
- Compact & Lightweight Integrated deck-unit-free structure (≤400 g) features ultra-small size for seamless integration on small USVs.
- Low Power Consumption 9–28 V wide-voltage input with 5 W typical power consumption enables long-endurance operation for unmanned platforms.
Overview
Specifications
Application
- Adaptive bottom‑tracking algorithm dynamically filters clutter, wave‑induced noise and fish echoes to maintain reliable bottom lock for stable output.
- Enhanced roll‑and‑pitch tolerance (up to ±10°), solving the common bottom‑loss issue of small USVs under wave conditions.
- Standard Chirp modulation technology across the full series for improved signal‑to‑noise ratio and better adaptability to turbid water.
- Built‑in automatic parameter optimization; one‑touch start‑stop enables rapid commissioning.
USVs Simplify Underwater Exploration
Portable USVs Built for Underwater Exploration
- No redundant cruising. Side-scan, bottom-scan and depth full details in one run.
- No trade-offs, tri-frequency sonar balances long range and clarity.
- No shipping hassles – one person easily fits it in any car trunk.