Castor IMU 1100

Tactical 1˚/hr. Inertial Measurement Unit (IMU) package with RS422 interface for control and guidance applications qualified as per MIL standards. The Castor IMU1100 offers acceleration measurement range of 16g (40g optional) and rate measurement range 400°/s supporting high dynamics applications.

The Castor series IMU1100 is a high-end tactical class inertial measurement unit consisting of high-performance triaxial MEMS Accelerometer, triaxial Gyroscope and triaxial Magnetometer sensors based on latest MEMS technology. The IMU is equipped with a high-speed processor that runs superior signal processing algorithms delivering control grade inertial measurement data. The IMU output is available over a RS422 interface. Its rugged and modular design makes it suitable for integration with control computers and other application hardware.


The miniature MEMS IMU, CSTR-IMU1100 offers 1˚/hr. (typ.) bias instability performance and is suitable for inertial guidance and control applications where size is the constraint. The Castor IMU design complies with MIL environmental and EMC standards.


Product Features

Excellent 1˚ /hr. in-run bias instability, thermal compensation, and good short-term turn-on to turn-on repeatability.

IMU1100 features configurable filters with programmable taps optimizing the IMU for best performance.

Factory calibrated for misalignment, offsets, and scale factor errors and temperature compensated.

Offers update rates of up to 2000Hz and configurable bandwidth as per customer application requirements.

IMU1100 is designed for shock survival up to 1000g making it suitable for high dynamics applications.

Low supply voltage requirement making it possible to power up the IMU with low voltage battery systems.

Low noise and highly stable accelerometer and gyroscope sensors for high performance sensor data.

Wide operating temperature range and temperature compensation of sensors for useful performance across operating range.

RS422 Interface, external trigger, diagnostics, and data ready options for integrated communication with user controller.

Technical Specifications

  • Accelerometer
  • Gyro
  • Electrical Specifications
  • Communication
  • Mechanical
±10 g
Bias Instability
20 μg
Initial Bias
1.5 mg
262 Hz
±480 °/s
Bias Instability
1 °/hr
Initial Bias
<0.03 °/s
Angular Random Walk
0.45 °/sqrt(hr)
262 Hz
Operating Voltage
4.5 V to 6 V DC
Power consumption
< 1.3 W
Type of connector
Micro D
Update Rate
Up to 2000 Hz
Output parameters
Rotation Rates, Accelerations, Onboard Temperature, Voltages, Sensor Health
RS422, External Trigger Input, Valid Data Output Signal
38.60 mm x 44.80 mm x 21.50 mm
<72 gm
Operating Temperature
-40 °C to +71 °C
Storage Temperature
-55 °C to +90 °C
Shock Survival
1000 g


Documents & Softwares

Q & A

What is the interface for CSTR-IMU1100?

CSTR-IMU1100 can be interfaced on RS422.

What dynamics is CSTR-IMU1100 suitable for?

CSTR-IMU1100 has a dynamic measurement range of 400 deg./s and up to 40g

User Manual