High-Performance Fiber Optic, Ring Laser Gyro and MEMS Inertial Sensors & Navigation Systems
SDI170 Tactical-grade MEMS IMU alternative to legacy RLG systems

Tactical-grade MEMS IMU alternative to legacy RLG systems

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The EMCORE SDI170 IMU (Inertial Measurement Unit) offers unparalleled performance and reliability, designed specifically for military and defense applications. This advanced inertial system is fully compatible in form, fit, and function with legacy RLG-based IMU products but delivers superior performance, versatility, and a significantly higher Mean Time Before Failure (MTBF) in rugged environments.

Key features:

  • Tactical-Grade Performance: The SDI170 IMU leverages EMCORE’s mature and proven quartz MEMS inertial sensor technology, originally developed for the SDI500 tactical-grade IMU, ensuring dependable and accurate operation in the field.
  • Enhanced Reliability: With solid-state quartz sensors and hermetically sealed construction, the SDI170 IMU boasts a robust MTBF and a 20-year operating and storage lifespan, making it ideal for mission-critical applications.
  • Superior Precision: Incorporating the latest generation quartz gyros and accelerometers, coupled with high-speed signal processing, the SDI170 IMU achieves outstanding precision and stability.
  • Rugged Design: Engineered for continuous use in demanding environments, the SDI170 IMU features no wear-out components and highly linear accelerometer performance, ensuring longevity and consistent performance under harsh conditions.
  • Ease of Integration: The SDI170 IMU includes Continuous Built-in Test (BIT), configurable communication protocols, EMI protection, and flexible input power compatibility, simplifying integration into a wide range of advanced defense systems.


  • Navigation and stabilization systems
  • Guidance systems for missiles and unmanned vehicles
  • Targeting and fire control systems
  • Any application requiring precise inertial measurement and reliability


Gyro Channels Acceleration Channels
Bias (over temperature 1°/hr - 3°/hr 1.0 mg - 2.0 mg
Bias In-Run Stability 1.0°/hr - 1.5°/hr 100 - 200 μg
Random Walk Noise 0.02°/√hr 100 μg /√Hz - 120 μg /√Hz
Scale Factor Error 200 ppm 200 ppm
Operating Temperature -55 °C to +85 °C -55 °C to +85 °C