Overview
The 120 single‑axis FOG is a high precision angular rate sensor based on the Sagnac effect. It uses a single‑axis design to measure real‑time angular motion relative to inertial space. With an all‑solid‑state package and no moving parts, it delivers an ultra‑high measurement accuracy of 0.001°/h, excellent long‑term stability, and low drift. It is a critical core component for high‑precision inertial navigation, precision stabilization control, and accurate attitude measurement.
Product Features
● All‑solid‑state design, long life, high reliability
No mechanical wear, resistant to shock and vibration, quick startup with no warm‑up time.
● Ultra‑high precision, stable performance
Bias stability of 0.001°/h (100s smoothing).
● Low power consumption, wide dynamic range
Typical power consumption < 4W, measurement range up to ±300°/s, suitable for various complex motion conditions.
● Excellent full‑temperature performance
Bias stability ≤ 0.003°/h (with compensation) under 1°C/min temperature ramp.
Applications
- Strapdown inertial navigation systems (SINS)
- North‑finding systems
- Orientation and positioning systems
- High‑precision control platforms
Technical Specifications
| Parameter | Unit | Requirement |
| Dimensions | mm | 120 × 120 × 38 (L × W × H) |
| Startup Time | s | < 3 |
| Bias Stability (Room Temp, Constant Temp) | (°)/h | ≤ 0.001 (100s smoothing) |
| Bias Repeatability (Room Temp) | (°)/h | ≤ 0.001 |
| Bias Stability Under Temperature Ramp (1°C/min, 100s smoothing) | (°)/h | ≤ 0.003 (with compensation) |
| Bias Magnetic Sensitivity | (°)/h/Gs | ≤ 0.001 |
| Angle Random Walk | °/√h | ≤ 0.0015 |
| Scale Factor Stability (Room Temp) | ppm | ≤ 1 |
| Scale Factor Repeatability (Room Temp) | ppm | ≤ 1 |
| Scale Factor Stability (Full Temp) | ppm | ≤ 10 (with compensation) |
| Bandwidth | Hz | ≥ 200 |
| Operating Temperature | °C | -45 ~ +70 |
| Storage Temperature | °C | -55 ~ +85 |
| Dynamic Range | (°)/s | ±300 |
| Supply Voltage | V | +5 |
| Steady-State Power Consumption | W | ≤ 4 |
| Threshold | (°)/h | ≤ 0.001 |
| Misalignment Angle (Room Temp) | (‘) | ≤ 1 |
| Bias Variation During Vibration (vs. pre/post vibration) | (°)/h | ≤ 0.002 |
