SPATIAL platform

The SPATIAL platform is equipped with 1000 m² of clean rooms with all the easements and means of handling necessary for their operation. They are mainly composed by:

• ISO 8 hall: 400 m²
• ISO 8 Vibrations room: 25 m²
• ISO 7 preparation rooms: 25 m² and 30 m²
• ISO 5 optics integration rooms: 35 m², 35 m² and 40 m²

Qualify the space instruments for launch

Shock and testing with sinusoidal and random excitations

Main technical featuresThe LAM shaker serves to simulate the vibrations undergone by a satellite instrument during its launch phase in space. It is located in an ISO 8 cleanliness room which can be increased to iso 5.

3 vibrations axes
33 KN capability
Cleanliness level environment : ISO8 to ISO5

Air-cooled electrodynamic shaker : LDS V875/440 35 KN
Slip Low Pressure Table: LPT 600, 600mm x 600 mm
Cleanliness environment up to ISO 5 level
Spectral Dynamics SD 2560 with 28 channels
Power amplifier : LDS SPAK 35/40
Acquisition & control system : Spectral Dynamics SD 2560 with 28 channels
Piezo and ICP Accelerometers : ~ 30 ENDEVCO and ~15 B&K types

Signal conditioning
B&K 2525 pre-amp stage : 2 dedicated channels for pilot and control
B&K NEXUS : 16 voies

PC under Linux ‘jaguar System’
Printing curves

Main (sub)systems vibrated : NAC (Rosetta), Spire Mechanism (Herschel), NI-DS (Euclid Nisp)

The Euclid Nisp NI-DS and NI-GS vibrations campaing

Euclid is an ESA mission which will be launched in 2024 to understand the nature of the dark matter and energy. The NISP is one of the two Euclid instruments used to map the geometry of the dark Universe. The NI-DS and NI-GS are NISP detection and optical subsystems. All the NI-DS and NI-GS models (including flight one) are vibrated on the LAM vibrations testing system. The picture hereafter shows the vibrations for NI-DS Qualification model and NI-GS flight model.

Simulate the flight space conditions

Global description

The NAC vacuum chamber is intended for thermal cycling, thermal balance tests or qualifications of instruments or subsystems embedded on satellites. Its useful volume is 2.5 m3. The COL chamber is intended to research on micro optical components. Its useful volume is 0.06 m³.

The NAC chamber

The useful volume is 2.5 m³ and its dimensions are :

• Length = 1000mm
• Width = 800 mm
• Height = 405 mm

Main technical features :

Building cleanliness level : ISO8

Vacuum level : <=10-5 mbar

Environment Temperatures range: from 353 K to 80 K

This mean can be adapted to specific test request on demand

Main (sub)systems tested : NAC (Rosetta) ; HRS (Herschel), HFI (Planck), NI-DS (Euclid Nisp) .

The COL chamber
The useful volume is 0.6 m³ and its dimensions are :

• Diameter = 400 mm
• Height = 400 mm

This volume consists of an opto-thermal table, a ferrule and its lid. This aluminum assembly is supported by three feet in invar connected to a damped optical bench.

The COL has sixteen portholes allowing internal and external optical alignments.

Main technical features :

Building cleanliness level : ISO8

Vacuum level : <=10-5 mbar

Environment Temperatures range: from 330 K to 30 K

Bake out flight space components or subsystems

Global description

The PBEM and the BE chambers are intended for the cleaning of satellites components or susbsystems to prevent pollution of the instrument flight optics. The useful respective volumes are 0.1 and 2 m³.

The PBEM chamber

The oven useful volume is 0.1 m³ and its dimensions are :

• Diameter = 0.45 mm
• Height = 0.65 mm

Main technical features :

Building cleanliness level : ISO8

Vacuum level : <=10-5 mbar

Environment Temperatures range: from 393 K to ambient temperature

The parts to be baked out are placed in the oven and can be heated up to 120 ° C under secondary vacuum conditions and for a period of several days continuously.

Main (sub)systems baked out : NI-TC and mounts of NI-GS (Euclid Nisp) .

The BE chamber

The oven useful volume is 2 m³ and its dimensions are :

• Length = 2000 mm
• Width = 1000 mm
• Height = 1000 mm

The parts to be baked out are placed in the oven and can be heated up to 120 ° C under secondary vacuum conditions and for a period of several days continuously.

Main technical features :

Building cleanliness level : ISO8

Vacuum level : <=10-5 mbar

Oven Temperatures range: from 393 K to ambient temperature

Cold trap temperature  : <=120 k

Main (sub)systems baked out : NI-TC and NI-GS (Euclid Nisp) .

Test satellites instruments in flight conditions

Global description

ERIOS, the main element of the LAM platform “SPATIAL”, is a large thermal-vacuum space simulation chamber for calibration, adjustment and integration for space instruments which combines vacuum, temperature close to 80 K and an optical bench with very high mechanical stability.

The main technical features

The useful volume is 50 m3 and the whole chamber overall dimensions are :

• Diameter = 4000 mm
• Lenght = 6000 mm

Main technical features :

Building cleanliness level : ISO8

Vacuum level : <=10-5 mbar

Environment Temperatures range: from 353 K to 80 K

Optical bench size : 1.5 m * 6 m

Optical bench mechanical stability : <= 10-7 g

To ensure stability, and hence accurate measurements, the optical bench is connected to a 100-tone concrete block under the floor resting on pillars via spring boxes.

Main (sub)systems tested : Nisp STM, Nisp EM and Nisp FM (Euclid Nisp) + associated GSEs

Euclid Nisp : the first ERIOS TB/TV campaign

Euclid is an ESA mission which will be launched in 2021 to understand the nature of the dark matter and energy. The NISP is one of the two Euclid instruments used to map the geometry of the dark Universe. All the NISP models (including flight one) are fully integrated at LAM and tested in ERIOS in its flight operating environment. The picture hereafter shows the blank test configuration which is operated to perform the NISP final acceptance tests before delivery to the payload.