specifications
A total of three gliders are to be procured for the Helmholtz-Zentrum Hereon, all three underwater gliders have the same configuration described below.
Basic configuration
The basic configuration of the underwater gliders (gliders) consists of (the information always applies to all three gliders):
- the glider is driven by means of a buoyancy motor, which must be able to achieve an absolute volume change of about +/- 400 ml with a vehicle weight (out of water) of about 50 - 80 kg
- it must be possible to determine the flight profile of the glider by converting part of the vertical speed into horizontal speed by means of wings that can be easily custom-made by Hereon personnel.
- the buoyancy motor must be designed for a maximum operating depth of 200 m
- the Gilder must be designed in such a way that the buoyancy motor can be replaced by a buoyancy motor designed for a maximum depth of 1000 m (if such a buoyancy motor is to be purchased in the future)
- the glider must be equipped with an altimeter to avoid collisions with the seabed
- be equipped with a strobe light or other warning light to warn shipping when the glider is on the surface
- it must be possible to communicate digitally via the Iridium satellite communication system RUDICS
- the gliders must be able to communicate digitally via an additional radio system, which must work at short distances from 1000 m to a maximum of 1500 m
- be equipped with software for a web-based user interface to control the glider via a satellite or radio-based communication system
- The glider must be compatible with a Rockland Scientific Microrider turbulence package so that the microtemperature structure and shear probes are physically placed in front of the glider's fuselage to minimize interference from wake effects.
- The glider must be compatible with an existing Teledyne RDI ADCP with phased array transducer
- The glider must be able to be equipped with an additional propulsion system in the form of a propeller, which is folded when not in use
- via the satellite link, the Hereon staff must be able to program the glider (waypoints, dive parameters, sample parameters, etc.)
- The glider must be modularly expandable for additional, possibly simple, customer-specific sensors
- a suitable transport container for the glider should be included in the scope of delivery
Energiekonfiguration
The Glider's energy system must
- allow the use of custom-made battery packs that can be maintained by Hereon personnel to achieve maximum endurance; these custom-made battery packs must be able to contain at least about 15 MJ, which is equivalent to about 400 C-cell lithium primary batteries from SAFT, for example
- It should have an additional rechargeable battery system for test or short-term use, with an energy storage of at least about 8 MJ
- However, both systems are not used at the same time, only one of them is used at a time
Sensor configuration
The sensor configuration of the glider must consist of the following components:
- One pumped CTD each with a sampling rate of 1 Hz (Seabird GPCTD or at least equivalent)
- a sensor for fluorescence at 470/695 nm (0-40 ug/l) and turbidity at 700 nm (0-100NTU); e.g.: WetLabs or at least equivalent.
- 1x piece of Aandareaa Optode 4831 oxygen sensor or at least equivalent
- 1x Teledyne RDI Pathfinder DVL 600 kHz, with activated profiling mode or at least equivalent
Preamble
The Helmholtz-Zentrum hereon GmbH (Hereon) is a non-profit research institution and one of the 18 member institutions of the Hermann von Helmholtz Association of German Research Centres. 90% of the expenses of the Hereon are financed by the federal government (BMBF - Federal Ministry of Education and Research) and 10% by the four consortium states (Schleswig-Holstein, Hamburg, Lower Saxony and Brandenburg).
The statutory task of the society is to conduct research and development in a multidisciplinary network, especially in the fields of materials research, coastal, climate and environmental research as well as regenerative medicine.
specifications
A total of three gliders are to be procured for the Helmholtz-Zentrum Hereon, all three underwater gliders have the same configuration described below.
Basic configuration
The basic configuration of the underwater gliders (gliders) consists of (the information always applies to all three gliders):
- the propulsion of the glider is carried out by means of a buoyancy motor, which must be able to achieve an absolute volume change of about +/- 400 ml with a vehicle weight (out of water) of about 50 - 80 kg
- it must be possible to determine the flight profile of the glider by converting part of the vertical speed into horizontal speed by means of wings that can be easily custom-made by Hereon personnel.
- the buoyancy motor must be designed for a maximum operating depth of 200 m
- the Gilder must be designed in such a way that the buoyancy motor can be replaced by a buoyancy motor designed for a maximum depth of 1000 m (if such a buoyancy motor is to be purchased in the future)
- the glider must be equipped with an altimeter to avoid collisions with the seabed
- be equipped with a strobe light or other warning light to warn shipping when the glider is on the surface
- it must be possible to communicate digitally via the Iridium satellite communication system RUDICS
- the gliders must be able to communicate digitally via an additional radio system, which must work at short distances from 1000 m to a maximum of 1500 m
- be equipped with software for a web-based user interface to control the glider via a satellite or radio-based communication system
- The glider must be compatible with a Rockland Scientific Microrider turbulence package so that the micro-temperature structure and shear probes are physically placed in front of the glider's fuselage to minimize interference from wake effects.
- The glider must be compatible with an existing Teledyne RDI ADCP with phased array transducer
- The glider must be able to be equipped with an additional propulsion system in the form of a propeller, which is folded when not in use
- via the satellite link, the Hereon staff must be able to program the glider (waypoints, dive parameters, sample parameters, etc.)
- The glider must be modularly expandable for additional, possibly simple, customer-specific sensors
- a suitable transport container for the glider should be included in the scope of delivery
Energiekonfiguration
The Glider's energy system must
- allow the use of custom-made battery packs that can be maintained by Hereon personnel to achieve maximum endurance; these custom-made battery packs must be able to contain at least about 15 MJ, which is equivalent to about 400 C-cell lithium primary batteries from SAFT, for example
- It should have an additional rechargeable battery system for test or short-term use, with an energy storage of at least about 8 MJ
- However, both systems are not used at the same time, only one of them is used at a time
Sensor configuration
The sensor configuration of the glider must consist of the following components:
- One pumped CTD each with a sampling rate of 1 Hz (Seabird GPCTD or at least equivalent)
- a sensor for fluorescence at 470/695 nm (0-40 ug/l) and turbidity at 700 nm (0-100NTU); e.g.: WetLabs or at least equivalent.
- 1x piece of Aandareaa Optode 4831 oxygen sensor or at least equivalent
- 1x Teledyne RDI Pathfinder DVL 600 kHz, with activated profiling mode or at least equivalent
Since the underwater gliders must be compatible with each other and the measurement data must be comparable, all three underwater gliders must be offered as a complete package.
Due to special project conditions, two of the three gliders may not be delivered until 02.04.2024. The other glider may be delivered as soon as possible. All three underwater gliders must be delivered by 30.04.204 at the latest.