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Hardware extra content #110

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Aug 24, 2023
Merged

Hardware extra content #110

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1b95e57
additional: sonars: add Cerulean 450 + sonars guide link
ES-Alexander Aug 4, 2023
b4ba37b
recommended: tether-interface: add SeaView and DWE fiber options
ES-Alexander Aug 4, 2023
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8 changes: 5 additions & 3 deletions additional/sonars/index.md
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title = "Sonars"
description = "Allows measuring range to surfaces, or acoustically imaging targets. Can be helpful for navigation and terrain following, especially in structured environments without alternative positioning systems. Robust to poor lighting and water clarity."
date = 2022-10-11T17:33:19+11:00
date = 2023-08-04T23:40:00+11:00
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Sonars are useful pieces of equipment in situations where visibility is low. Sonars can help get ranges to surfaces or acoustically image targets to better understand their shape.

If you want to learn more, see this [guide to sonar technology and acoustic devices](https://bluerobotics.com/learn/a-smooth-operators-guide-to-underwater-sonars-and-acoustic-devices/).

## Echosounders and Altimeters

A useful type of sonar is an echosounder, also known as an altimeter when installed on an underwater vehicle. An altimeter is a single-beam sonar which gets a range measurement from the bottom of the ROV to the seabed. This is useful in low visibility situations where the distance to the bottom is unknown.
Expand All @@ -33,7 +35,7 @@ Mechanically scanning sonars are useful tools for navigation, and acoustically i

### Supported Scanning Sonars

Only the Blue Robotics Ping360 Scanning Sonar is fully integrated with the ArduSub system and has advanced features such as heading rotation and a direct connection to the Companion Computer.
Only the Blue Robotics Ping360 Scanning Sonar is fully integrated with the ArduSub system and has advanced features such as heading rotation and a direct connection to the Onboard Computer.

{{ easy_image(src="ping360", width=350) }}

Expand All @@ -48,11 +50,11 @@ The following scanning sonars have been installed on ArduSub vehicles:
Multibeam imaging sonars are similar to mechanically scanning sonars in that they acoustically image targets in a top-down 2-dimensional representation. However, with multiple sonar beams the refresh rate is much higher presenting a real-time image of what is in front of the vehicle.

The following multibeam sonars have been installed on ArduSub vehicles:
* [Cerulean Omniscan 450](https://ceruleansonar.com/pages/omniscan-product-page) ForwardScan and SideScan (Ethernet + [BlueOS Extension](https://docs.bluerobotics.com/BlueOS-Extensions-Repository/#:~:text=SonarView,-Maintainer))
* [Blueprint Subsea Oculus Series Multibeam Sonars](https://www.blueprintsubsea.com/oculus/) (Ethernet)
* [Tritech International Gemini 720im Multibeam Sonar](https://www.tritech.co.uk/product/gemini-720im) (Ethernet or RS485 connection through tether)
* [Tritech International Gemini 720ik Multibeam Sonar](https://www.tritech.co.uk/product/gemini-720ik) (Ethernet)


## Profiling Sonars

Profiling sonars are 1-dimensional echosounders with a rotating head that are able to get accurate acoustic range data to create a "profile" of the surrounding environment. These types of sonars are useful for inspecting material buildup in pipes.
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4 changes: 3 additions & 1 deletion recommended/tether-interface/index.md
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title = "Tether Interface"
description = "Converts an ethernet connection to a signal type more suited to long distances and different tether types."
date = 2022-10-11T17:33:19+11:00
date = 2023-08-04T23:45:00+11:00
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Expand All @@ -28,4 +28,6 @@ The following interface boards are supported:
With communications being Ethernet based, fiber optic cables may also be used with Ethernet-to-Fiber converters installed inside the ROV and topside.

The following fiber optic interface boards have been known to work:
* [SeaView SVS-700BR Fiber Kit](https://www.seaviewsystems.com/products/blue-robotics-bluerov2-and-accessories/bluerov2-fiber-optic-upgrade-kit/)
* [DeltaROV Subsea Fiber to Ethernet Communication Kit](http://www.deltarov.com/new/product/drov-subsea-fiber-to-ethernet-communication-kit/)
* [DeepWaterEngineering Fiber to Ethernet Converter](https://dwe.ai/products/ethernet-fiber-converter)