1. RPWI Mechanics: RWI sensor design Marta Tokarz
RPWI Team Meeting – Warszawa, January 2011
RPWI Mechanics:
RWI sensor design
Marta Tokarz

2. Possible 1÷1.5m long antenna with similar weight
The advantages of use of a tubular boom on the nanosatellite
NanoSpace -1 satellite
Length of only 25-30cm
Possible 1÷1.5m long antenna with similar weight
RPWI Team Meeting – Warszawa, January 2011

3. Early activities Two types of tapes: Diameter: ø25mm Thickness: 0.15mm
Mass: ~100g/m
Diameter: ø15mm
Thickness: 0.1mm
Mass: ~50g/m
Material: spring stainless steel
RPWI Team Meeting – Warszawa, January 2011

4. Beryllium bronze tubular booms
Present solution:
Diameter: ø6mm
Thickness: 0.05mm
Mass: ~8g/m
Max tubular boom length: 1.5m
In developing:
Diameter: ø10mm
Thickness: 0.07mm
Mass: ~15g/m
Max tubular boom length: 2÷2.5m
RPWI Team Meeting – Warszawa, January 2011

5. RWI – An orthogonal tri-axial antenna system
Smooth deployment
Small mass of 375g including:
- 3x 1.5m dipoles
- deployment unit
- 3x pre-amplifiers
Motor power consumption during deployment should not exceed 2W
RPWI Team Meeting – Warszawa, January 2011

6. RWI – An orthogonal tri-axial antenna system
Stowed antenna – dimensions:
Front view
Top view
RPWI Team Meeting – Warszawa, January 2011

7. RWI – An orthogonal tri-axial antenna system
Deployed antenna – dimensions:
Front view
Top view
RPWI Team Meeting – Warszawa, January 2011

8. RELEC – Microantenna Very small dimensions
Very small mass of 200g including:
- 3x 1.5m dipoles
- deployment unit
- 3x pre-amplifiers
Dyneema string power consumption is 3W for a few seconds
RPWI Team Meeting – Warszawa, January 2011

9. RELEC – Microantenna
RPWI Team Meeting – Warszawa, January 2011

10. RELEC – Microantenna Stowed antenna – dimensions: Front view Top view
RPWI Team Meeting – Warszawa, January 2011

11. RELEC – Microantenna Deployed antenna – dimensions: Front view
Top view
RPWI Team Meeting – Warszawa, January 2011

12. Thank you for your attention
RPWI Team Meeting – Warszawa, January 2011
Thank you for your attention
Marta Tokarz