Overview
The HG1700 Inertial Measurement Unit (IMU) by Honeywell Aerospace is a high-performance, tactical-grade device designed for a variety of guidance and control applications. It is widely used in weaponry, UAVs, stabilized platforms, and commercial applications, with over 350,000 units delivered globally.

Description
The HG1700 features three Ring Laser Gyroscopes (RLG), three quartz Resonating Beam Accelerometers (RBA), and associated electronics, all housed in rugged aluminum. It offers excellent stability, with negligible bias stability in thermally stable environments. The unit includes an external environmental ring isolator to filter unwanted sensor inputs.

Power and Integration
The HG1700 consumes less power than fiber optic gyro-based systems and simplifies system integration with configurable features like data rate output and flight control filtering. It does not require external heat sinks or cooling.

Configurations
The HG1700 is available in two variants, four performance grades, and thirty configurations. The HG1700SG variant is smaller and lighter than the HG1700AG.

Key Characteristics

• Volume: HG1700 AG - 33 in³ (541 cm³), HG1700 SG - 27 in³ (443 cm³)
• Height: HG1700 AG - 2.865 in (7.25 cm), HG1700 SG - 2.262 in (5.75 cm)
• Weight: HG1700 AG - <2 lbs (0.9 kg), HG1700 SG - <1.5 lbs (0.7 kg)
• Power Consumption: <5 watts
• Operating Temperature Range: -54°C to +85°C
• Data Rate: 100 Hz (Guidance) and 600 Hz (Control)
• Built-In-Test Coverage: >90%
• Gyro Operating Range: Varies from +/- 358 deg/sec to +/- 1620 deg/sec
• Accelerometer Operating Range: Varies from +/- 12 g to +/- 70 g
• Supply Voltages: +15V (.25 amps), +5V (.15 amps)

Standard Models & Performance
The document lists various models with specific gyro and accelerometer biases, angular random walk (ARW), and velocity random walk (VRW) values. It also details the interface protocols and isolator types used.

Benefits

• All inertial sensors are designed, developed, and manufactured by Honeywell.
• Industry-standard RS-422 serial interface.
• Proven performance in military and commercial applications, including weaponry, ground survey, UAVs, mobile mapping, and stabilized platforms.
• Configurable interface protocols, including SDLC, Asynchronous serial, and Gated clock.