FD-3D1000 Mechanical Scanning 3D Sonar

FD-3D1000 3D Scanning Sonar

Technical Specification

1. Purpose of the Equipment

The FD-3D1000 3D scanning sonar is a single-beam mechanical scanning 3D imaging sonar, primarily designed for scanning the 3D contours of fixed objects in water. It features low cost, compact size, lightweight construction, and low power consumption. Thanks to its sealed oil-filled design, the external components are free of rotating parts, effectively preventing risks such as sand clogging bearings and entanglement of seagrass or fishing lines.

The FD-3D1000 operates using a single-beam dual-axis scanning method. Two motors drive the sonar transducer to rotate along the θ-axis and φ-axis, generating intensity maps and point cloud images of the scene from echoes at each position. The θ-axis covers a 360° omnidirectional range, while the φ-axis spans -15° to 90°, enabling full coverage of the water body. The scanning range, speed, and resolution can all be configured via software.

The FD-3D1000 sonar features dual frequencies of 750kHz and 1MHz, with software-controlled switching. The standard model operates at a maximum depth of 500m. For deeper applications, please contact our company.

2. Technical Specifications

2.1. Sonar Technical Specifications

（1）Center frequencies: 750kHz and 1MHz, with other frequencies available upon request.

（2） For details on the detection range, central beam width, and opening angle, please refer to the table below (maximum detection range applies to strong reflective targets such as rocks or coastlines; clear water, flat sandy seabed, good or moderate hydrological conditions, and speed below 6 knots.）

pour ：

1. The horizontal 3dB energy distribution angle of the target formed by the horizontal and vertical center points of the sonar is allowed to have an error of +10%/-30%.

2. The detection distance of high reflectivity objects such as embankment and bridge pier in seawater under good hydrological conditions is about 1~1.2 times of that in fresh water under the same conditions.

（1） Range resolution: Range-dependent, minimum 1mm;

（2） Range: 1~70 meters, continuously adjustable;

（3）Transmission mode: CW or CHIRP, with automatic or manual selection;

（4） Maximum working depth: 500m; can be customized for deeper applications.

（5）working blind spot: ≤0.2m;

（6） Scan resolution: up to 0.1°;

（7）Horizontal scanning range (θ axis): 360°;

（8）Vertical scanning range (φ-axis): -15° to 90° (0° is the horizontal plane, 90° is directly overhead).

（9）Scanning speed ：

Serial version: up to 20 lines/s;

Network port version: up to 100 lines/s;

（10）Scanning mode: Panoramic or Sector scan;

2.2. Electrical Interfaces

（1）Input voltage: 12 to 40VDC;

（2）Power consumption: The average power is approximately 5W, with peak power below 10W.

（3）Communication interface ：100Mbps Ethernet, with optional half-duplex isolated RS-485 (which reduces scan speed and is not recommended).

（4）External connectors: 1 waterproof connector for signal and power transmission;

2.3. Mechanical Specifications

（1） Dimensions (diameter × height, excluding cable): Standard model: 110 (±1) x 139 (±1) mm;

（2）Weight (air/water, excluding cable): approximately 1.8kg/0.9kg;

（3）Installation: Secure with M4 screws on the underside.

（4）Outer shell materials: engineering plastics and 316 stainless steel.

（5） Color: The engineering plastic section is black, while the metal section is left in its original color.

（6） The surface is smooth without burrs or sharp edges.

 3. Mechanical dimensions of appearance

4. Connectors and Definitions

4.1. Connector and Description

The external cable adapter socket is mounted on the rear of the sonar system for serial port and power supply. Note: The connector does not support end-face sealing, and waterproofing is only achieved when the plug and socket are assembled.

4.2. Connector Pin Definition

4.2.1. Ethernet version:

4.2.2. RS-485 Version:

Note: A 120Ω termination resistor is included between TRX+ and TRX-

5. Coatings, Markings, Packaging and Transportation

5.1. Surface Treatment and Corrosion Protection

（1）The sonar surface is constructed from engineering plastics and 316 stainless steel, providing exceptional corrosion resistance.

（2）The sonar can operate continuously in seawater for weeks without maintenance. However, regular checks for aquatic biofouling on the sonar surface must be performed and promptly cleaned to prevent performance degradation. Additionally, after each submersion, the device should be thoroughly rinsed with clean water and dried.

（3）Sonar should not be exposed to direct sunlight for extended periods, as this may significantly reduce its lifespan.

（4）The sonar system employs an oil-filled design. Should any cracks or oil leakage be detected, immediate factory repair is required.

（5） If you require products capable of long-term underwater operation, please specify this requirement during the ordering process. Our company will then utilize specialized materials and manufacturing techniques.

5.2. Packaging and Labeling

（1）The sonar uses polypropylene aviation boxes as its outer packaging, offering shockproof, waterproof, and drop-resistant features.

（2）The sonar model and specifications are printed on both the sonar surface and the packaging box, with a sonar nameplate affixed to the exterior of the box.

（3）The package includes: the sonar host, a 5-meter waterproof cable (standard with sonar connector), user manual, software USB drive, and test report.

5.3. Transportation

（1）The sonar can be transported by common railway, highway and air.