Trillium Compact User Guide
16889R5
2014-03-04
41
Chapter 8
Specifications
8.1 Technology
8.2 Performance
Table 8-1
Technology specifications
Topology
Symmetric triaxial
Feedback
Force balance with capacitive transducer
Mass Centring
Not required
Table 8-2
Performance specifications
Self-noise
120 s models
Figure 9-2 “Self-noise for 120 s models”
20 s models
Figure 9-3 “Self-noise for 20 s models”
Sensitivity
120 s models
754.3
nominal ± 0.5% precision
20 s models
753.1
nominal ± 0.5% precision
Off-axis sensitivity
±0.5%
Bandwidth
120 s models
–3 dB points at 120.2 s and 108 Hz
20 s models
–3 dB points at 20.04 s and 108 Hz
Transfer function
Lower corner poles within ±0.5% of nominal provided
High frequency response within 1 dB of nominal up to 45 Hz
No peak in response at high frequency
See
Figure 9-1 “Bode plot for 120 s and 20 s models”
Clip level
26 mm/s from 0.1 Hz to 10 Hz
Tilt
120 s models
Dynamic and operational tilt range of ±2.5°
20 s models
Dynamic and operational tilt range of ±10°
Parasitic resonances
None below 200 Hz
V s m
⁄
⋅
V s m
⁄
⋅