882-GS Imaging

Gyro-stabilization makes the high resolution 882-GS sonar capable of crystal clear visualization of the ocean environment from moving platforms, no longer compromised by the blurring effects of host vehicle rotation. An advanced, low drift gyro is integrated directly into the sonar head, so the sonar can compensate for vehicle motion in real time with unprecedented accuracy, stability, and robustness.

Using Ethernet communications, this all-in-one, high performance digital imaging sonar exceeds 100 shots per second on short range at up to 2 mm range resolution, and can auto-adjust acoustic frequency and resolution to scan up to a 100 m radius, 360° surrounding area.

The Model 882-GS has low power, simple set-up, and small size that make it an ideal tool for large work ROV’s and small inspection vehicles. On it’s own it is an amazingly simple drop sonar and borehole inspection package: just add a laptop computer and power supply and run the included Imagenex software.

882-GS Imaging

Underwater Hardware Specifications

Frequency

675 kHz or 1 MHz (standard default settings)
-Other frequencies can be selected through programmable software configurations
(Tunable from 280 kHz to 1.1 MHz in 5 kHz steps)

Transducer

Imaging type, fluid compensated

Transducer Beam Width

675 kHz:  1.8° x 20°
1 MHz:  0.9° x 10°

Range Resolution

1 m – 4 m:  2 mm (0.08”)
5 m & up:  10 mm (0.4")

Orientation Module (accuracies)

Pitch & Roll:  ± 0.1° typical
Heading (Magnetic):  ± 1.0° typical

Min. Detectable Range

150 mm (6")

Max. Operating Depth

300 m and 1000 m available

Max. Cable Length

Standard:  100 m on CAT5e (Ethernet)
Cable length may be increased up to ~9000 m using an Ethernet extender.  Please enquire for more information.

Optional Serial Interface:  1000 m on typical twisted shielded pair (RS-485)

Interface

Standard:  10 Mbps Ethernet (10 BASE-T) using TCP/IP
Bit rate may vary if an Ethernet extender is in use.

Optional Serial Interface:  RS-485 serial interface @ 115.2 kbps (or optional RS-232)

Connector

Ethernet:  IE55-1206-BCR

Serial:  IE55-1004-BCR

Power Supply

20 – 32 VDC at less than 7 Watts

Dimensions

300 m unit:  See drawing

1000 m unit:  TBA

Weight in Air

300 m unit:  ~1.2 kg (~2.6 lbs)
1000 m unit:  TBA

Weight in Water

300 m unit:  ~0.3 kg (~0.7 lbs)
1000 m unit:  TBA

Materials

6061-T6 Aluminum & Polyurethane

Finish

Hard Anodize

Software Specifications

Win881AL_GS.exe

v1.0.2.8

Windows™ Operating System

Windows™ XP, Vista, 7, 8, 10

Modes

Sector, Polar and Side Scan

Gyro Modes

North Up, Heading Up, Target Steering

Range Scales

1 m, 2 m, 3 m, 4 m, 5 m, 10 m, 20 m, 30 m, 40 m, 50 m, 60 m, 80 m, 100 m

Train Angles

Continuous rotation, 3° increments

Sector Size

Sector Mode:  0° – 180°, 3° increments
Polar Mode:  0° – 357°, 3° increments, or Continuous rotation

Step Sizes

Slow (0.3°), Medium (0.6°), Fast (0.9°), Faster (1.2°), Fastest (2.4°)

Grid Types

Polar and rectangular

File Format

(filename).81R

Recommended Minimum Computer Requirements

2 GHz Pentium 4
256 MB RAM
20 GB Hard Disk
1024 x 768 Screen Resolution

Ordering Information

300 m Unit

882-000-100

1000 m Unit

882-000-101

RS-232

Option               -006

RS-485

Option               -007

IP Address* (for Ethernet version only)

Option               -020

*Note:   Standard IP Address is 192.168.0.5
            A different IP Address may be specified upon ordering.

882-GS Imaging

Features

  • Ethernet (or Optional Serial)
  • Programmable (format available)
  • Gyro stabilized transducer steering
  • Simple set-up and installation
  • Full scale range from 1 m to 100 m
  • Orientation module

Applications

  • ROV, AUV, & UUV
  • Manned Submersibles
  • Search & Recovery
  • Borehole/cave work
  • Drop sonar
  • Scientific Research

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