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-G70SR1 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) ≤0.008°/hr; Angular Random Walk (1σ) ≤0.003°/√hr. A companion “Deep Pilot” variant (SD-GT70SR1) 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): ≤0.008°/hr; Angular Random Walk (1σ): ≤0.003°/√hr; Vibration Screening: 20~2000Hz, 6.06g; Bandwidth: ≥200Hz.
Specifications
| Parameter | Value | Unit |
|---|---|---|
| Dynamic Range | ≥±400°/s | |
| Bias In-Run Stability | ≤1°/hr | |
| Accuracy (100 s, 1σ) | ≤0.008°/hr | |
| Angular Random Walk (1σ) | ≤0.003°/√hr | |
| Vibration Screening | 20~2000Hz, 6.06g | |
| Bandwidth | ≥200Hz | |
| Turn-On Time | 10s | |
| Output Signal Format | RS-422 | |
| Built-In Self-Test | — | |
| Output Update Rate | 500Hz~2000Hz | |
| Output Baud Rate | 230400bps~921600bps | |
| Operating Temperature | – 40°C ~ + 70°C | |
| Storage Temperature | – 55°C ~ + 85°C | |
| Power Supply | 5V | |
| Connector | J30JZ/XN9TJCAL01 | |
| Power Consumption | ≤4.5w | |
| MTBF (per MIL-HDBK-217-F) | ≥100000hr | |
| Weight | ≤720g | |
| Dimensions | Φ69mm×23mm |
All specifications are taken from the manufacturer’s current datasheet.
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