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The ISA500 underwater Altimeter & Echo Sounder provides exceptionally long range measurement capability – in excess of 120 meters.
In addition to providing exceptionally long range capability, the unit has a 1mm accuracy – allowing precision underwater distance measurements to be made.
Optionally, the ISA500 can also be provided with an integrated Attitude and Heading Reference System (AHRS). This provides highly stable Heading, Pitch and Roll readings.
The ISA500 utilises sonar technology to derive distance measurement.
Operating by default at 500kHz, the unit utilises a broadband composite transducer and electronics together with an advanced digital acoustic engine. The combination of these enable the unit to achieve long range and high accuracy.
The unit can be operated at any frequency from 400 to 600kHz – ideal for different applications or operating in conjunction with other hydro-acoustic or sonar equipment.
Optionally available on the ISA500 is an integrated Attitude & Heading Reference System (AHRS) providing Heading, Pitch & Roll.
The AHRS is based on Micro-Electrical-Mechanical-System (MEMS) based technology.
Within the ISA500 there are three MEMS based Gyros, Accelerometers & Magnetometers. The outputs from each of these MEMS devices are fused together, providing highly stable Heading, Pitch & Roll.
The Heading is highly resilient against temporary magnetic interferes. This is aided by a soft and hard iron calibration feature once the unit has been installed on the ROV, AUV or other underwater application.
Provides Altitude readings in excess of 120 meters above the seabed. Also provides Heading, Pitch & Roll. Can emulate any other Altimeter – making integration into any Autonomous Surface Vehicle (ASV) Autonomous Underwater Vehicle (AUV) or Remotely Operated Vehicle (ROV) very easy.
The high level of accuracy also ensures that precise positioning of the vehicle can be obtained.
Reduce the equipment required to provide Altitude, Heading, Pitch & Roll by using a single ISA500 unit.
Measure distance to a target underwater with 1mm accuracy.
Ideal for final positioning of equipment underwater, positioning a tool in real time, monitoring under ice distance measurements etc
Using the multi-echo capability, measure the distance to and between multiple targets in one ping.
Monitor the height off the seabed together with the Pitch, Roll and Heading of the equipment. Provides a clear understanding of equipment position and attitude.
Ideal for touchdown monitoring applications.
The ISA500 provides the ideal sensor for detecting flooded members underwater. The high accuracy and sensitivity of the unit allows a precise and accurate check to be conducted. Within seaView a dedicated FMD application is provided. The FMD application provides all that is required to conduct, log and report on underwater flooded members.
Read more about the ISA500 & FMD Application in the system datasheet here.
Monitor Altitude above the seabed and also the Pitch, Roll and Heading of the Magnetometer or Towfish.
The ISA500 is ready for direct integration with a variety of Magnetometers (such as the G882).
With RS232, RS485, Analogue Voltage and Analogue Current interfaces, the ISA500 can easily be interfaced with other Oceanographic sensors and systems.
When mounted to a surface buoy the ISA500 can measure the altitude below the buoy – ideal for wave height measurement.
The ISA500 can also be mounted facing upwards to monitor wave height from the seabed.
The ISA500 is available in 1,000, 6,000 & 11,000 meter rated housing configurations. Housings are offered in either Titanium or Acetal.
Both forward looking and right angle housing configurations are available – enabling simple integration into any underwater vehicle, towed asset or structure.
An OEM version of the ISA500 is also available, which offers an un-housed version of the ISA500 for integration into a third party housing or system. Alternative connector options are also available upon request.
