Overview

The HG1930 Inertial Measurement Unit (IMU) by Honeywell Aerospace is a high-performance Micro-Electro-Mechanical-Systems (MEMS) based device designed for demanding environments. It is suitable for applications such as ground and oceanographic surveying, robotics, commercial camera stabilization, and navigation of unmanned aerial vehicles, missiles, munitions, and projectiles.

Description

The HG1930 features MEMS gyroscopes and accelerometers housed in a rugged aluminum casing with an internal environmental isolation system to reduce unwanted inputs. Honeywell designs and manufactures all MEMS sensors used in the HG1930, ensuring industry-leading performance with minimal size, weight, and power (SWAP) parameters.

Configurations

The HG1930 is available in three performance grades, offering configurable features such as data rate output and flight control filtering to facilitate system integration.

Key Characteristics

• Volume: 5 in³ (82 cm³)
• Weight: <0.35 lbs (0.16 kg)
• Power Consumption: <3 watts
• Operating Temperature Range: -54°C to +85°C
• Data Rate: 100 Hz (Guidance) and 600 Hz (Control)
• Built-In-Test Coverage: >89%
• Gyro Operating Range: Up to 7,200 deg/sec (X axis), 1,440 deg/sec (Y and Z axes)
• Accelerometer Operating Range: Up to 85g (X axis), 35g (Y and Z axes)
• Supply Voltages: +5V

Standard Models & Performance

The HG1930 is available in models CA50, BA50, and AA50, each with varying specifications for gyro bias repeatability, in-run stability, angular random walk (ARW), and velocity random walk (VRW).

Typical Performance Over Full Operating Temperature Range

Performance metrics such as gyro bias repeatability, in-run stability, ARW, and VRW are provided for each model, demonstrating the unit's reliability across temperature variations.

Key Honeywell Advantages

• All inertial sensors are designed and manufactured by Honeywell.
• Fast start time of 350 msec for quicker target acquisition.
• Industry-standard RS-422 serial interface.
• Wide range of configurable interface protocols.
• Solid-state electronics for improved reliability.
• 20-year storage life without repair or overhaul.