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881A

Product catalog summary

Overview: The document details the specifications and applications of the Imagenex Model 881A series, including the Digital Multi-Frequency Imaging Sonar, Profiling Sonar, and Azimuth Drive, designed for underwater applications such as ROV, AUV, UUV operations, offshore exploration, archaeology, and research.

Imaging Sonar Specifications: The 881A Imaging Sonar is a programmable, multi-frequency digital sonar with default frequencies of 310 kHz, 675 kHz, and 1 MHz, tunable from 280 kHz to 1.1 MHz. It features a compact design, low power consumption, and supports a range from 1 m to 200 m, operating at depths up to 3000 m.

Profiling Sonar Specifications: Similar to the Imaging Sonar, the Profiling Sonar is optimized for profiling, operating primarily at 675 kHz with tunable frequencies from 600 kHz to 1 MHz. It offers a range resolution of 2 mm for distances up to 4 m, suitable for inspections.

Azimuth Drive Specifications: The Azimuth Drive is a rotary actuator for 3D precision surveying, allowing continuous rotation and controlled via a PC-compatible program using RS-485 protocol.

Software Specifications: The Win881A.exe software controls and displays sonar data, supporting Windows 95 through Vista, with features like sector, polar, and side scan modes, data recording, and playback.

Ordering Information: Provides ordering codes for sonar units and Azimuth Drive configurations, including RS-232 interfaces and connector types.

Color Table Menu: Offers various color tables for mapping echo data amplitude to display colors, with 107 colors per table.

Options Menu: Allows changes in measurement units, sonar echo data display, sound velocity adjustments, user text entry, and sonar head recalibration.

Com Ports Menu: Enables selection of serial communication ports for sonar head and GPS input, supporting RS-485 and RS-232 ports.

Multi-Frequency Operation: Automatically adjusts operating frequency, absorption, and pulse length based on range, with specific parameters for different sonar models.

Settings Menu: Users can adjust sonar head parameters manually or automatically, with options to load, save, or revert configurations.

Misc Menu: Includes features like pixel zoom, screen clearing, diagnostics display, and sonar operation settings when minimized.

Profile Menu: Offers modes for displaying digitized profile range points, grid display options, and profile data plotting settings.

Auto-Profile and Auto-Azimuth: Automates scanning and data saving, generating ASCII XYZ files and screen captures, with customizable scanning processes.

XYZ ASCII File Format: Records multiple scans with date, time, profile range, azimuth angle, vertical scanning angle, and x, y, z coordinates, tab-delimited and grouped by azimuth angle.

Main Menu: Includes options like Grid On/Off for sonar display and an About section for software version and contact information.

On-Screen Switches: Options for displaying data, holding display, reversing scanning direction, adjusting plotting speed, and changing sonar settings.

Keyboard Switches: Commands for clearing display, changing start gain and range, and reversing scanning direction.

Cursor Measurements: One Cursor Measurement measures distance and bearing to a target, while Two Cursor Measurement measures between two targets.

Messages: Error messages indicate issues like no power to the sonar head or GPS receiver not sending data.

Data Storage File Format (.81A): Describes the structure of the .81A file, including file header, sonar return data, and extended bytes for additional information like GPS data.

Scanning Speeds and Storage: Tables provide scanning speeds and storage requirements for different ranges and modes.

Serial Interface Specification: The Model 881A communicates via RS-485 or RS-232 lines, requiring specific command strings and baud rate settings.

Operational Specifications: Outlines care and operational specifications for the Model 881A sonar, focusing on environmental conditions like depth and temperature.

General Care and Usage: Maintenance tasks include rinsing in fresh water, cleaning the transducer dome, lubricating connectors, and proper storage to prevent corrosion and damage.

Service: Repairs should be directed to Imagenex Technology Corp. as there are no user-serviceable components.

Safety: Inspect the transducer dome and cable connector for damage before each use.

Operational Environmental Specifications: The Model 881A operates within specific environmental limits, including temperature, depth, and salinity.

Sonar Theory and Applications: Explains sonar terminology and applications, focusing on imaging and profiling techniques.

Imaging: Uses a fan-shaped beam for visual images, primarily as a viewing tool.

Profiling: Uses narrow beams for accurate cross-sections, primarily a quantitative tool.

Using an Imaging Sonar on an ROV: Enhances ROV operations by allowing area scanning without movement, aiding in target recognition and sonar interpretation training.

Interpretation of Sonar Images: Sonar images differ from optical images due to ultrasonic signals, requiring understanding of the scanning process and shadow analysis for interpretation.

Catalog excerpts

IMAGENEX MODEL 881A DIGITAL MULTI-FREQUENCY IMAGING SONAR ROV, AUV, & UUV Offshore Oil & Gas Sunken Timber Recovery Diving Support Surveying Search & Recovery Inspection Underwater Archaeology Scientific Research Programmable Multi-frequency High performance Lower cost Low power Simple set-up and installation Digital telemetry Full scale range from 1 m to 200 m Compact size Communication format available to user Now with Multi-frequency Sonar, operators can generate highly detailed full-scale images with just one unit. The 881A is a programmable multi-frequency digital imaging sonar that you can operate using default frequency settings or customize the configurations for your own situation. High performance, lower cost, low power and simple set-up and installation, make this sonar perfect for the largest ROV’s to the smallest inspection ROV’s, plus AUV or UUV applications. Specifications subject to change without notice Copyright © 2002 - 2013 Imagenex Technology Corp.

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HARDWARE SPECIFICATIONS: FREQUENCY TRANSDUCER TRANSDUCER BEAM WIDTH RANGE RESOLUTION MIN. DETECTABLE RANGE MAX. OPERATING DEPTH MAX. CABLE LENGTH INTERFACE CONNECTOR POWER SUPPLY DIMENSIONS (for both depth ratings) WEIGHT: In Air 310 kHz, 675 kHz, or 1 MHz (default settings) -Other frequencies can be selected through programmable software configurations (Tunable from 280 kHz to 1.1 MHz in 5 kHz steps) Imaging type, fluid compensated 310 kHz: 4° x 40° 675 kHz: 1.8° x 20° 1 MHz: 0.9° x 10° 1 m – 4 m: 2 mm (0.08”) 5 m & up: 10 mm (0.4”) 150 mm (6”) 1000 m and 3000 m available 1000 m on typical twisted...

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ORDERING INFORMATION: 1000 m UNIT 3000 m UNIT RS-232 End mount connector Right angle connector Interface source code in “C” (TEST881A.C) Standard Standard Option Option Option Option Product and company names listed are trademarks or trade names of their respective companies.

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IMAGENEX MODEL 881A DIGITAL MULTI-FREQUENCY PROFILING SONAR Profiling ROV, AUV & UUV Offshore Oil & Gas Surveying Dam Face Inspection Pipeline Inspection Underwater Archaeology Scientific Research Programmable Multi-frequency High performance Lower cost Low power Simple set-up and installation Digital telemetry 1 to 100 m operation (full scale) Compact size Communication format available to user Now with Multi-frequency Sonar, operators can fine-tune their profiling range resolution. The Model 881A Profiling Sonar Head is a programmable multi-frequency digital scanning sonar that you can operate...

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HARDWARE SPECIFICATIONS: FREQUENCY TRANSDUCER TRANSDUCER BEAM WIDTH RANGE RESOLUTION MIN. DETECTABLE RANGE MAX. OPERATING DEPTH MAX. CABLE LENGTH INTERFACE CONNECTOR POWER SUPPLY DIMENSIONS (for both depth ratings) WEIGHT: In Air 675 kHz -Other frequencies can be selected through programmable software configurations (Tunable from 600 kHz to 1 MHz in 5 kHz steps) Profiling type, fluid compensated 600 kHz: 2.4° 675 kHz: 2.1° 1 MHz: 1.4° 1 m – 4 m: 2 mm (0.08”) 5 m & up: 10 mm (0.4”) 150 mm (6”) 1000 m and 3000m available 1000 m on typical twisted shielded pair (RS-485) RS-485 serial interface @...

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881A Azimuth Drive 445-019 AUGUST 2002-REVISED JANUARY 2011 IMAGENEX MODEL 881A AZIMUTH DRIVE APPLICATIONS: • • • • 3D Precision Surveying Sediment Transport Research Marine Geology Scientific Research Programmable Continuous Rotation Suitable for Autonomous or Remote Deployment The Model 881A Azimuth Drive is a rugged and powerful rotary actuator drive that can be coupled to an Imagenex Model 881A Profiling Sonar. The two axes of rotation in this combined unit provide the capability to obtain accurate, high resolution range information in any direction. In standard applications, profiles may...

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SOFTWARE SPECIFICATIONS: WINDOWS™ OPERATING SYSTEM AZIMUTH ANGLE FILE FORMAT RECOMMENDED MINIMUM COMPUTER REQUIREMENTS: Windows™ 95, 98, Me, NT*, 2000*, XP*, Vista* 0° – 359.7°, 0.3° increments (filename).81a, (filename).xyz 100 MHz Pentium 16 MB RAM 1 GB Hard Disk 800 x 600 x 256 colour graphics * Requires Win881A.exe v2.00 or higher (Free upgrade available for older versions – Contact Imagenex) ORDERING INFORMATION: 1000 m UNIT 3000 m UNIT Interface source code in “C” (TESTAZIM.C) Standard Standard Option Product and company names listed are trademarks or trade names of their respective companies....

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PLAN VIEW RIGHT ANGLE SIDE VIEW FREQUENCY: Tunable. Three default settings of 330kHz TRANSDUCER: Oil filled protective transducer housing. - Operater can select a frequency of his own choosing other than the default settings. — 360 degree continuous rotation. — Polar mode, sector mode, single side scan mode. RANGE: Full scale range is from 1M - 200M POWER: 24 VDC less than 5 Watts DEPTH: 1000M Aluminium housing MATERIALS: 6061T6 Aluminum, Polyurethane, 300 series stainless steel, Epoxy resin. FINISH: Hard Anodised TECHNOLOGY CORPORATION 209-1875 BROADWAY STREET, PORT COQUITLAM, B.C. CANADA, V3C...

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AZIMUTH DRIVE DO NOT CLAMP THIS AREA

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HEAD POWER SERIAL PORT TEST CABLE PINOUT IS FOR INDUSTRIAL COMPUTER SOURCE IMAGENEX Technology Corp. MODEL 881A SONAR HEAD TEST CABLE Document Number

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HEAD POWER SERIAL PORT TEST CABLE IMAGENEX Technology Corp. MODEL 881A SONAR HEAD TEST CABLE (RS-232) Document' Number

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IMAGENEX MODEL 881A SONAR 1. Remove the green nylon cord that secures the electronics housing. Don't remove the cord that secures the red polyurethane dome as it contains oil. 2. Gently wiggle the electronics housing away from the middle bulkhead section ensuring that the O-Ring remains clean and intact. 3. Locate all suitcase jumper positions on the top circuit board (PCB 130-008.V2). - install jumpers JP11, JP13 and JP 17. Remove all other jumpers. - install jumpers JP12, JP14, JP15 and JP18. Remove all other jumpers. 4. Ensure that the O-Ring and O-Ring surfaces are clean and replace the housing....

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881A

881A

Catalog excerpts

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