|
Total Travel |
360° continuous, both azimuth and elevation |
|
Clear Aperture Diameter(1) |
193.5 mm (7.6 in) |
292.1 mm (11.5 in) |
393.7 mm (15.5 in) |
489.0 mm (19.3 in) |
|
Mechanical Drive System |
Direct Drive Brushless Servomotor |
| Accuracy(3) |
±10
μrad (±2 arc sec) |
±10
μrad (±2 arc sec) |
±5
μrad (±1 arc sec) |
±5
μrad (±1 arc sec) |
| Repeatability |
±2.5
μrad (±0.5 arc sec) |
±2.5
μrad (±0.5 arc sec) |
±2.5
μrad (±0.5 arc sec) |
±2.5
μrad (±0.5 arc sec) |
| Resolution |
0.27
μrad (±0.055 arc sec) |
| Feedback |
Inductosyn
(7 in diameter; 720 poles) |
Inductosyn
(12 in diameter; 720 poles) |
|
Maximum Rotary Speed(2) |
100 rpm |
100
rpm |
50
rpm |
50
rpm |
|
Maximum Load Parameters |
Diameter |
203.2 mm (8.0 in) |
304.8 mm (12.0 in) |
406.6 mm (16.0 in) |
508.0 mm (20.0 in) |
|
Thickness |
40.6 mm (1.5 in) |
53.3 mm (2.1 in) |
63.5 mm (2.5 in) |
88.9 mm (3.5 in) |
|
Weight |
20 kg (44 lb) |
20.0 kg (44 lb) |
50.0 kg (110.2 lb) |
50.0 kg (110.2 lb) |
|
Axis Wobble |
Azimuth |
14.6 µrad (3 arc sec; 0.00083°) |
|
Elevation |
24.3 µrad (5 arc sec; 0.0014°) |
|
Orthogonality |
48.5 µrad (10 arc sec; 0.0028°); 12 µrad (2 arc sec; 0.0014°)
optional |
| AZ
Motor Type |
S-180-69-A |
S-180-69-A |
S-240-63-A |
S-240-63-A |
| EL
Motor Type |
S-180-44-A |
S-180-44-A |
S-240-63-A |
S-240-63-A |
| Mass |
84
kg |
91
kg |
208
kg |
234
kg |
| AZ
Inertia |
1.21
kg-m2 |
2.07
kg-m2 |
7.48
kg-m2 |
11.71
kg-m2 |
| EL
Inertia |
0.033
kg-m2 |
0.033
kg-m2 |
0.24
kg-m2 |
0.70
kg-m2 |
| Material |
Steel
AZ housing and yoke; Aluminum EL housing and mirror cell |
|
Standard Finish |
Paint: Textured Epoxy (Polane-T), Pebble Grey Color |
United
States [Change]
