Land Systems

IMUs for control and stabilisation

Tactical-class MEMS IMUs and a gyro module that give control-grade inertial data to stabilise pedestals, gimbals and weapon stations.

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The challenge

An EO pedestal, a radar pedestal, a remote controlled weapon station or a gimbal camera has to hold its line of sight while the platform under it moves.

The control loop that keeps it steady is only as good as the motion data it gets: low noise, low drift, fast updates and a bandwidth that suits the loop.

How we solve it

The Castor range gives the control computer tactical-class MEMS inertial data. The IMU 1100 and the GYR 1200 are housed units; the IMU 1640 is the OEM version that mounts on your own PCB.

Tactical-class gyros
In-run gyro bias instability of 0.6 °/hr (GYR 1200), 0.7 °/hr (IMU 1100) and 1 °/hr (IMU 1640), typical.
Fast updates, configurable bandwidth
Update rates up to 2000 Hz (IMU 1100, GYR 1200) and 4250 Hz (IMU 1640). Bandwidth on the IMU 1100 and IMU 1640 is configurable to suit the application.
Wide measurement range
Angular rate range of ±480 °/s on all three. Acceleration range of ±10 g on the IMU 1100, and ±16 g with ±40 g overrange on the IMU 1640.
Built for shock
All three survive 1500 g mechanical shock (MIL-STD-883F, Method 2002.4) and are rated IP65, from -40 °C.
Housed or on your board
IMU 1100 and GYR 1200 talk RS422 with an external trigger input. The IMU 1640 talks SPI and plugs onto your control board through a board-to-board connector.
Watches its own health
Continuous onboard monitoring of temperature, voltage and sensor health.