Precision Inertial Sensor Family powered by AIT Sensing: High‑Accuracy IMUs, AHRS, and GNSS/INS for Demanding Applications
AIT's 2026 Portfolio Delivers Tiered Performance, Robust Interfaces, and Advanced GNSS/INS Fusion, Including Fiber‑Optic Navigation Systems
AIT’s 2026 inertial sensor lineup features ARS AHRS (0.05° heading), multi‑tier IMUs (0.3–5°/h gyro stability), and INS with RTK, dual‑antenna heading, and odometry fusion for harsh‑environment navigation.
AIT introduces its expanded 2026 inertial sensor family, engineered for applications where precision, reliability, and environmental resilience are critical. The portfolio includes high‑performance Attitude and Heading Reference Systems (AHRS), a tiered series of industrial‑grade IMUs, advanced GNSS/INS navigation modules, and a fiber‑optic integrated navigation system—each designed to meet distinct performance and integration requirements.
The ARS‑4647 and ARS-8878 AHRS series provides compact, lightweight attitude sensing with heading accuracy up to 0.05° per circle and pitch/roll accuracy of 0.05°. It features intelligent magnetic interference mitigation and offers both USB (R12) and TTL/CAN (R10) interfaces, making it ideal for space‑constrained robotic and unmanned systems.
The IMU‑X663 series delivers scalable precision in a rugged, IP65‑sealed package. Gyro bias stability ranges from 5°/h (IMU‑2663) to 1°/h (IMU‑4663) and 0.3°/h (IMU‑7663), supporting applications from general motion tracking to high‑precision stabilization. All models include wide temperature compensation, RS422 output, and optional acceleration ranges up to ±50 g.
For absolute positioning, the INS‑3820‑R11 integrates multi‑constellation RTK GNSS with a 200 Hz IMU, achieving sub‑centimeter horizontal accuracy. Key features include dual‑antenna heading (0.05° static), odometry fusion for drift reduction, and a tightly coupled architecture that maintains reliable navigation during GNSS interruptions.
For applications requiring enhanced long‑term stability and performance in challenging signal environments, the INS‑4533‑R10 fiber‑optic integrated navigation system combines a triple‑axis fiber‑optic gyroscope (≤0.05°/h bias stability) with a triple‑constellation GNSS receiver. It supports multi‑sensor fusion (odometer/DVL/barometer) and delivers high‑precision attitude, heading, and positioning for aviation, marine, and vehicular platforms.
All sensors are factory‑calibrated, support in‑field updates, and operate across a wide temperature range (--40 °C to +85 °C), ensuring consistent performance in challenging environments.
Features:
· ARS Series: 0.05° heading accuracy, USB/TTL/CAN interfaces, <7 g weight, intelligent magnetic rejection
· IMU‑X663 Series: Gyro bias stability from 5°/h to 0.3°/h, ±20 g default accelerometer range (optional ±5 g/±50 g), RS422 output, IP65 sealed
· INS‑3820‑R11: RTK positioning (0.8 cm + 1 ppm), dual‑antenna heading, odometry‑aided drift control (<0.2% over 1 km), CAN FD/Ethernet capable
· INS‑4533‑R10: Fiber‑optic gyro (≤0.05°/h bias stability), triple‑constellation GNSS, multi‑sensor fusion support, RS232/RS422/CAN/Ethernet interfaces
· Wide operating temperature range (–40 °C to +85 °C) with embedded temperature compensation
· Rugged designs: IP65/IP67, magnesium‑alloy or anodized aluminum housings
· High data‑output rates (up to 1000 Hz raw, 500 Hz filtered)
· Field‑upgradable firmware and in‑site calibration support
Applications:
· Autonomous vehicles and robotic navigation
· Unmanned aerial and underwater vehicles
· Precision agriculture and construction machinery guidance
· Industrial platform stabilization and motion control
· Marine survey and pipeline inspection
· Structural health and tilt monitoring
· Defense and aerospace tracking systems
· Photoelectric pod stabilization and antenna systems
· Railway inspection and mining vehicle navigation
Part Numbers (Active DigiKey -ND Suffix):
· ARS‑4647‑R12‑USB‑ND
· ARS‑4647‑R10‑TTL‑ND
· ARS‑8878‑R11 ‑ND
· IMU‑2663‑R07‑422‑ND
· IMU‑4663‑R07‑422‑ND
· IMU‑7663‑R07‑422‑ND
· INS‑3820‑R11‑GNSS‑ND
· INS 4533 R10 ND
Key Search Terms:
1. AHRS 0.05 degree heading accuracy
2. High stability IMU 0.3 deg per hour
3. GNSS INS RTK dual antenna
4. Rugged inertial measurement unit
5. Fiber optic INS navigation system
