Table 2 Thrust balance design specifications, as given by manufacturer AST
From: Thrust measurement and thrust balance development at DLR’s electric propulsion test facility
Parameter | Specification |
|---|---|
Maximum thruster mass | 40 kg |
Thrust range | 0–250 mN |
Accuracy | 2.5 mN |
Repeatability | 0.5 mN |
Resolution | <0.25 mN |
Response time (0–90%) | 5 s |
Settling time | 10 s |
Drift | < 0.5% of full range per hour |
Temperature drift | < 0.1% per deg., measured at thruster platform |
Burn-in time | 1 hour |
Mass | 130 kg |
Size | height: 697 mm, width: 570 mm, depth: 592 mm |
Other features | – calibration with voice coil |
– calibration with weight | |
– calibration in vacuum | |
– option for 1N full range upgrade |