Merak-G70SR2 Integrated Fiber Optic Gyroscope

Description

A high-precision integrated fiber optic gyroscope (IFOG) (gyro bias repeatability ≤1°/hr) with fast startup, RS-422/Ethernet output and extended-temperature operation, suited to demanding navigation and stabilization applications.

The Merak-G70SR2 Integrated Fiber Optic Gyroscope is part of the Merak series of integrated fiber optic gyroscopes (IFOG), in which the optical gyroscope and its detection electronics are packaged in a single cylindrical housing. It is an angular-rate sensor based on the Sagnac effect: light from a superluminescent diode travels through a fiber coil in opposite directions, and the Sagnac phase shift induced by rotation is detected and processed to deliver a highly stable rate output. The unit delivers a dynamic range of at least ±400°/s with excellent bias stability and low angular random walk. Key performance figures include Dynamic Range ≥±400°/s; Bias In-Run Stability ≤1°/hr; Accuracy (100 s, 1σ) ≤0.015°/hr; Angular Random Walk (1σ) ≤0.005°/√hr. A companion “Deep Pilot” variant (SD-GT70SR2) with the same specifications is also available. Electrical interfacing is provided through high-speed serial or Ethernet links with fast startup, and the unit operates over an extended industrial temperature range with high MTBF for long-endurance missions. Typical applications include guidance weapons, attitude control, torpedoes, tactical missiles and other mid-to-high-precision navigation and stabilization systems. All specifications below are taken directly from the manufacturer’s 2026 catalog and datasheet.

Key specifications: Dynamic Range: ≥±400°/s; Bias In-Run Stability: ≤1°/hr; Accuracy (100 s, 1σ): ≤0.015°/hr; Angular Random Walk (1σ): ≤0.005°/√hr; Vibration Screening: 20~2000Hz, 6.06g; Bandwidth: ≥200Hz.

Specifications

All specifications are taken from the manufacturer’s current datasheet.