Gyros & INS
Ring-laser-gyro INS with pure inertial accuracy up to 0.003 °/h class and 0.5 m RTK positioning — for long-endurance, GNSS-denied and military-standard applications.
Series Overview — Full Specifications
| Item | L850 | L851 | LS850 | LS870 | Evidence |
|---|---|---|---|---|---|
| Gyro type | Ring-laser gyro | Ring-laser gyro | Single-axis modulation RLG | Single-axis modulation RLG | Manufacturer spec |
| Gyro bias stability | 0.01 °/h | 0.006 °/h | 0.008 °/h | 0.005 °/h | Manufacturer spec |
| Heading (pure inertial) | ≤0.05° × secφ/h | ≤0.05° × secφ/2h | 0.02° × secφ/6h | 0.01° × secφ/12h | Manufacturer spec |
| Heading (integrated) | ≤0.02° | ≤0.02° | 0.01° | 0.01° | Manufacturer spec |
| Position (pure inertial) | ≤1 nmile/h | ≤1 nmile/2h | <1 nm/6h | <1 nm/12h | Manufacturer spec |
| Position (GNSS / DVL-ODO) | ≤1.5 m; 0.2%×D | ≤1.5 m; 0.15%×D | ≤1.5 m; 0.1%×D | ≤1.5 m; 0.1%×D | Manufacturer spec |
| Alignment time | 5–15 min | 5–15 min | 10–30 min | 10–30 min | Manufacturer spec |
| Data update rate | 200 Hz | 200 Hz | 200 Hz | 200 Hz | Manufacturer spec |
| Dimensions / weight | 166×164×150 mm; ≤6 kg | 168×130×112 mm; ≤4.0 kg | 212×211×260 mm; ≤30 kg | 231×231×198 mm; ≤13 kg | Manufacturer spec |
| Power / voltage | ≤25 W, 18–36 V | ≤25 W, 18–36 V | ≤35 W, 18–36 V | ≤40 W, 18–36 V | Manufacturer spec |
| Interfaces | RS422; Ethernet; baud to 921600 | — | — | — | Manufacturer spec |
Applications
Long-endurance aircraft · survey aircraft · ships · vehicles in GNSS-denied environments · military-grade platforms (authorized clients).
Why laser over fiber?
Ring-laser gyros hold the highest bias stability class (0.003–0.005 °/h) with proven military-environment records — the choice when GNSS denial duration is the driver.
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