Low Shock Release Device (LSRD-10K/C-2000)
| Registration date (updated date) |
2/12/2016 (25/4/2018) |
|---|---|
| JAXA development group | Research Unit II, Research and Development Directorate |
| View diagram | See Attachment 1 |
| Environmental resistance | See Attachment 2 |
| Patent number (publication number) |
N/A |
| Reference | N/A |
| Satellite and launch date | Flight-proven 8 devices Installed in the TSUBAME (Super Low Altitude Test Satellite. Launched at December 23, 2017) |
| Note | N/A |
Manufacturer
Mitsubishi Electric Corporation
Kamakura-shi, Kanagawa, Japan
https://www.mitsubishielectric.com/en/worldwide/index.html
Features
By converting the holding tension force to rotational motion of an inner rotor, it is possible to prolong the operating time to release (shock reduction).
Shape memory alloy is adopted as trigger mechanism.
- Low shock level (200 Gsrs or less @10kN)
- Reusable
- Small and light weight
- Easy-handled
Applications
For many types of hold-down and release mechanisms.
- Solar array panels
- Launch locks of antenna
- Small satellite separation mechanisms
- and so on
Specifications
| Property | Specification |
|---|---|
| Load | 10 kN (2248 lbf) |
| Shock level | 200 Gsrs ↓ @10kN |
| Actuation period | 150 msec ↓ |
| Life | 20 times |
| Reusability | Resettable without refurbishment |
| Dimension | φ 52 × 43 mm (φ 2.047 × 1.693 inch) |
| Weight | 350 g (12.35 oz) ↓ |
| Temperature range | Nonoperating -80 to +60 °C (-112 to +140 °F) Operating -55 to +60 °C (-67 to +140 °F) |
| Resistrance value | 3.0 ±1.0 Ω |
| Actuation current | 6.0 +1.5 / -0.7 A |
| Current pulse width | 30 ±3 msec |
