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Precision Inertial Measurement

Factory-calibrated MEMS accelerometer and gyroscope modules for guidance, navigation, and control applications.

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Tactical-Grade MEMS Sensor Modules

Aeron's Castor family of Inertial Measurement Units delivers control-grade inertial sensor data for platforms that need reliable, factory-calibrated acceleration and angular-rate measurement — not a full navigation solution. Each module combines high-performance triaxial MEMS sensors with a high-speed onboard processor running digital signal processing and calibration algorithms, so every unit ships characterized and compensated for bias, misalignment, scale-factor error, and temperature drift.

The family spans a full 6DOF accelerometer + gyroscope + inclinometer module (IMU 1100), a dedicated gyroscope-only module for angular-rate-only applications (GYR 1200), and an OEM PCB-mounted 6DOF module built for high-speed SPI integration (IMU 1640) — giving system integrators the right sensor grade and interface for guidance, navigation, and control computers, robotics, gimbal stabilization, and unmanned ground and aerial platforms.

How Every Castor Module Works

IMU 1100, GYR 1200, and IMU 1640 all run the same onboard calibration and signal-processing approach — only the sensor suite and interface change between them.

In

Out

  • Triaxial AccelerometerRaw acceleration (IMU 1100, IMU 1640)
  • Triaxial GyroscopeRaw angular rate (all 3 modules)
Digital Signal ProcessorCalibration & Compensation Engine
  • Calibrated Sensor DataOutput via RS422 or SPI
  • Health & DiagnosticsContinuous Built-In Test (BIT)

Engineered for Control-Grade Precision

Nine core capabilities shared across the Castor IMU family.

  • High-End Tactical Gyro Performance

    Gyro bias instability as low as 0.6°/hr (typ.) across the family, with thermal compensation and good turn-on to turn-on repeatability.

  • Digital Software Filtering

    Configurable digital filters with programmable taps, tuned for the best performance in each application.

  • Fully Calibrated Over Temperature

    Every sensor is factory calibrated for misalignment, offsets, and scale-factor errors, and temperature compensated across its full operating range.

  • High Shock & Vibration Survival

    Qualified for shock survival up to 1500 g (MIL-STD-883F), suitable for high-dynamics platforms like quadcopters and ground vehicles.

  • Continuous Self-Diagnostics

    Built-in continuous monitoring of onboard temperature, voltages, and sensor health, alerting integrators to issues in real time.

  • High Update Rate

    Update rates from 2000 Hz (RS422 modules) up to 4250 Hz on the SPI-based IMU 1640, with configurable bandwidth per application.

  • Low Supply Voltage Options

    RS422 modules run from a single 4.5–5.5 V DC supply; the SPI OEM module runs from 3–3.6 V DC — easy to power from low-voltage battery systems.

  • Low Noise Sensors

    Low-noise, highly stable accelerometer and gyroscope sensors deliver consistent, high-performance sensor data across the family.

  • Flexible Communication

    Standalone modules communicate over RS422; the OEM IMU 1640 integrates directly via a high-speed digital SPI interface for PCB-mount designs.

Choose your IMU

IMU 1100, GYR 1200 & IMU 1640 Series · Castor

Choose your IMU
Castor GYR 1200

Gyroscope-Only · RS422 · CSTR-GYR1200

Castor GYR 1200

Tactical Grade 3-Axis Gyro Module

A dedicated triaxial MEMS gyroscope module for applications that need angular-rate data only — no accelerometer or magnetometer. Runs off a single +5V supply over RS422, with the lowest bias instability in the Castor family, and is qualified for high mechanical shock environments up to 1500 g.

SensorsGyroscope only (3-axis)
Gyro Bias Instability0.6°/hr (typ.)
InterfaceRS422
Update RateUp to 2000 Hz
PowerSingle +5 V DC · 1.2 W
Mechanical Shock1500 g / 0.5 ms half-sine
ComplianceIP65 · MIL-STD-810G · MIL-STD-461F · MIL-STD-883 · JSS-55555

Applications

  • Unmanned Ground Vehicle
  • Drone Navigation & Control

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Castor IMU 1100

Full 6DOF · RS422 · CSTR-IMU1100

Castor IMU 1100

Miniature Tactical 6DOF IMU with RS422 Interface

A high-end tactical-class IMU combining a triaxial accelerometer, gyroscope, and inclinometer over a standard RS422 interface — factory calibrated and temperature compensated, suitable for guidance, navigation, and control systems, robotics, gimbal control, and unmanned ground and flight-control applications.

SensorsAccelerometer, Gyroscope, Inclinometer
Gyro Bias Instability0.7°/hr (typ.)
InterfaceRS422
Update RateUp to 2000 Hz
Power4.5–5.5 V DC · < 1.3 W
Mechanical Shock1500 g / 0.5 ms half-sine
ComplianceIP65 · MIL-STD-883F

Applications

  • Guidance, Navigation & Control
  • Drone Navigation & Control

View product

Castor IMU 1640

OEM SPI · High Rate · CSTR-IMU1640

Castor IMU 1640

Miniature 6DOF IMU (OEM PCB-Mounted) with SPI Interface

A tactical-class 6DOF IMU (accelerometer + gyroscope) built for direct OEM PCB mounting via a board-to-board connector, with the family's fastest digital SPI interface — up to 4250 Hz — for UAV flight control, robotics, and high-dynamics guidance applications.

SensorsAccelerometer, Gyroscope
Gyro Bias Instability1°/hr (typ.)
InterfaceSPI (15 Mbps)
Update RateUp to 4250 Hz
Power3–3.6 V DC · < 1 W
Mechanical Shock1500 g / 0.5 ms half-sine
ComplianceIP65 · MIL-STD-883F

Applications

  • UAV Flight Control & Stabilization
  • Unmanned Ground Vehicle

View product

Compare the Castor Family

IMU 1100, GYR 1200, and IMU 1640 — every spec, side by side.

Castor IMU 1100Accel + Gyro + Inclinometer · RS422Castor GYR 1200Gyroscope-Only Module · RS422Castor IMU 1640Accel + Gyro · OEM SPI
Sensor Suite
SensorsAccelerometer, Gyroscope, InclinometerGyroscope onlyAccelerometer, Gyroscope
Gyro Bias InstabilityGYR 1200's single-axis-family design delivers the lowest gyro bias instability in the range0.7°/hr (typ.)0.6°/hr (typ.) (stronger)1°/hr (typ.)
Accelerometer Bias Instability0.02 mg (typ.)—0.019 mg (typ.)
Update RateUp to 2000 HzUp to 2000 HzUp to 4250 Hz (stronger)
Communication & Interface
InterfaceRS422RS422SPI (15 Mbps)
Data FormatBinaryBinaryBinary
MountingStandalone moduleStandalone moduleOEM PCB-mount (board-to-board connector)
Electrical & Power
Input Voltage4.5 to 5.5 V DC4.5 to 5.5 V DC3 to 3.6 V DC
Power Consumption< 1.3 W1.2 W< 1 W (stronger)
Mechanical & Environmental
Dimensions38.6 × 44.8 × 21.5 mm37.6 × 43.8 × 19 mm47 × 44 × 14 mm
Weight72 ± 3 g60 ± 4 g57 ± 3 g (stronger)
Mechanical ShockAll three qualified per MIL-STD-883F, Method 2002.4, Test Condition B1500 g / 0.5 ms half-sine1500 g / 0.5 ms half-sine1500 g / 0.5 ms half-sine
Operating Temperature−40°C to +85°C−40°C to +85°C−40°C to +71°C
Ingress ProtectionIP65IP65IP65

Why Choose Aeron

Aeron Systems focuses on innovation and high-precision engineering, prioritising sovereign control over critical technologies. Every Castor module is characterized and calibrated in-house for bias, misalignment, and temperature drift, then screened to military environmental and shock standards — so integrators get consistent, control-grade sensor data unit after unit, whether it's mounted standalone or built directly onto a customer's PCB.

Why Choose Aeron

Where Our IMUs Deliver

Field-proven performance across robotics, unmanned, and control platforms.

  • Guidance, Navigation & Control

    Factory-calibrated accelerometer and gyroscope data feeding guidance and control computers across robotics and unmanned platforms.

  • Unmanned Ground Vehicles

    Rugged, shock-qualified inertial sensing for UGV motion control and stabilization in demanding field conditions.

  • UAV Flight Control & Stabilization

    High update-rate inertial data for drone flight controllers, gimbal stabilization, and attitude-hold systems.

Contact

Ask for a price, or talk to one of our engineers about your platform or your plant.

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Offices

India

Head office and design centre, Pune

Plot No. 7, Lane No. 5, Laxman Nagar, Balewadi
Pune, Maharashtra 411045, India

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Factory, Pune

Vivan Kohli Industrial Park, Shed No. 5, Gat No. 446
Old Pune-Mumbai Highway, Naigaon, Kanhe Phata, Talegaon
Pune, Maharashtra 412106, India

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Sales and support, Bengaluru

First Floor, Building No. 11, Sai Anugraha
Jeevan Bhima Nagar Main Road
Bengaluru, Karnataka 560075, India

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Sales and support, Vijayawada

Door No. 52-1/4-8D, Plot No. 9, 5th Cross Road
Veterinary Colony
Vijayawada, Andhra Pradesh 520008, India

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International

Aeron Systems Pvt. Ltd., Sharjah

Saif Executive Office # P8-17-02
Sharjah Airport International Free Zone Authority
PO Box 8000, Sharjah, U.A.E.

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