Rugged accelerometer AI-Q-550

compactwith integrated temperature compensation

In Strapdown Inertial Navigation Systems, accelerometers are the primary tool for measuring both gravitational and inertial accelerations and providing the host vehicle with Guidance and Flight-Control parameters in a self- contained manner. Ultimately, the success of the mission highly depends on how well the Strapdown system performs and this is to a large extent determined by the performance capabilities of the accelerometers. Key Performance Features •Navigation grade performance •Good Bias •High input range •High stability under temperature changes •High reliability •Internal temperature sensor for thermal compensation •Compact, rugged design Specification Parameters Units Values Performance Input Range (10 Ω load resistor) g ±80 Bias mg ≤4 One-year Composite Repeatability (3σ) μg ≤1,000 Temperature Sensitivity μg/°C ≤50 Scale Factor mA/g ±0.65 to 0.85 One-year Composite Repeatability (3σ) ppm ≤600 Temperature Sensitivity ppm/°C ≤100 Axis Misalignment μrad ≤1,500 One-year Composite Repeatability (3σ) μrad ≤100 Vibration Rectification μg/g2 RMS ≤25 (50-200 Hz) ≤50 (200-750 Hz) ≤100 (750-2000 Hz) Intrinsic Noise (1kΩ load resistor) μg RMS ≤7 (0-10 Hz) ≤70 (10-500 Hz) ≤1,500 (500-10 kHz) Environment Operating Temperature °C -55 to +105 Shock half-sine (4 ms) g 250 Vibration peak sine (≤ 2 kHz) 35 peak 250 Resolution/Threshold μg ≤1 Bandwidth Hz ≥300