Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

3D Sonar Technology Made in Germany - High-resolution 3D imaging on short distances

07.06.2017

The technology of sonar is used for many years in the field of seafloor mapping, in the fishery industry or for the search for sunken objects. By the help of new 3D sonar systems of the Fraunhofer Institute for Biomedical Engineering IBMT, these tasks can be accomplished more efficiently and precisely. The Business Unit Sonar concentrates research and development activities in the field of acoustic underwater measurements. One focus is on the high-resolution volumetric sonar imaging at distances up to 25 m.

The Fraunhofer IBMT exhibits at this year's OCEANS conference in Aberdeen from June 19-22, 2017 (Booth No. 4).

The technology of sonar - the measurement of structures under water with sound signals - is used for many years in the field of seafloor mapping, in the fishery industry or for the search for sunken objects. The sonar systems used for these tasks are usually designed for long measurement distances and therefore provide a rather low spatial resolution.


Real-time 3D sonar camera

Fraunhofer IBMT


3D reconstruction of a measurement object

Fraunhofer IBMT

Many applications under water demand a high-resolution visualization of the surrounding environment on short distances. Optical video cameras are often used for this purpose. However, these systems are often inapplicable in turbid waters leading to the abort of operations in some cases. By the help of new 3D sonar systems, these tasks can be accomplished more efficiently and precisely.

The Business Unit Sonar of the Main Department of Ultrasound at the Fraunhofer Institute for Biomedical Engineering IBMT in Sulzbach (Germany) concentrates the previous and the future research and development activities in the field of acoustic underwater measurements.

One focus of the recent research and development is on the high-resolution volumetric sonar imaging at distances up to 25 m. High-resolution in this context means the imaging of structures in the range of some centimeters at distances of few meters. At the moment, three different imaging sonar systems are available as demonstrators which are used for labor and field measurements on various objects and structures.

One of these systems, a multibeam echosounder (MBES), generates a sound fan, which is moved along the measurement object. While doing so, the position of the sonar antenna is tracked continuously via GPS so that the single image slices can be subsequently merged correctly to form an accurate representation of the measured structure. The system is suitable for all kinds of measurements on stationary structures from distances up to 15 m.

Real-time 3D imaging

If dynamic processes are supposed to be visualized, a volumetric imaging in real-time is necessary. For this purpose, two additional sonar systems have been developed. Due to their operational mode, these systems provide a three-dimensional visualization of their environment from a fixed position. And this with the same high spatial resolution as the multibeam echosounder.

One of these systems is constructed in a pressure-resistant version, so that even a deep-sea operation up to 600 bar can be performed. Additionally, a miniaturization of the systems is in progress.

Besides the 3D imaging systems, the Fraunhofer IBMT is developing other sonar systems like a sediment penetrating sub-bottom-profiler for the measurement of sedimentary layers in the seafloor with centimeter precision.

The Fraunhofer IBMT presents the whole range of its sonar technologies at this year's OCEANS conference in Aberdeen from 19th to 22nd of June (Booth No. 4). Here, interested industrial companies as well as research groups can inform about the competences and services of the Business Unit Sonar.

Contact:

Dipl.-Ing. Michael Ehrhardt
Business Unit Sonar
Fraunhofer-Institute for Biomedical Engineering IBMT
Joseph-von-Fraunhofer-Weg 1
66280 Sulzbach
Germany
Fon: +49 6897 / 9071 330
Fax: +49 6897 / 9071 302
E-Mail: michael.ehrhardt@ibmt.fraunhofer.de
https://www.ultrasound.fraunhofer.de

Weitere Informationen:

https://www.ibmt.fraunhofer.de/en.html
https://www.ibmt.fraunhofer.de/en/ibmt-core-competences/ibmt-ultrasound.html
https://www.ibmt.fraunhofer.de/en/ibmt-core-competences/ibmt-ultrasound/ibmt-son...

Dipl.-Phys. Annette Maurer | Fraunhofer-Institut für Biomedizinische Technik IBMT

More articles from Earth Sciences:

nachricht The unintended consequences of dams and reservoirs
14.11.2018 | Uppsala University

nachricht Earth's magnetic field measured using artificial stars at 90 kilometers altitude
14.11.2018 | Johannes Gutenberg-Universität Mainz

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

Im Focus: Coping with errors in the quantum age

Physicists at ETH Zurich demonstrate how errors that occur during the manipulation of quantum system can be monitored and corrected on the fly

The field of quantum computation has seen tremendous progress in recent years. Bit by bit, quantum devices start to challenge conventional computers, at least...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

Epoxy compound gets a graphene bump

14.11.2018 | Materials Sciences

Microgel powder fights infection and helps wounds heal

14.11.2018 | Health and Medicine

How algae and carbon fibers could sustainably reduce the athmospheric carbon dioxide concentration

14.11.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>