Gyros & INS
Autonomous true-north finding without satellites: gyrocompass systems (CA series) and north seekers (NS series) with 0.1–0.3° class north-finding accuracy.
Fiber-Optic Gyrocompass — C501 / C505 / C507
| Item | C501 | C505 | C507 | Evidence |
|---|---|---|---|---|
| Heading accuracy | ≤0.1° | ≤0.5° | ≤0.75° | Manufacturer spec |
| Attitude accuracy | ≤0.01° | ≤0.02° | ≤0.03° | Manufacturer spec |
| Heave accuracy | 5 cm or 5% | 5 cm or 5% | 5 cm or 5% | Manufacturer spec |
| Startup / alignment | ≤5 s / ≤10 min | ≤5 s / ≤10 min | ≤5 s / ≤10 min | Manufacturer spec |
| Data update rate | ≤200 Hz | ≤200 Hz | ≤200 Hz | Manufacturer spec |
| Power / voltage | ≤20 W, 18–36 V DC | — | — | Manufacturer spec |
| Dimensions / weight | 270×212×140 mm, ≤5 kg | — | — | Manufacturer spec |
| Environment | −40…+65 °C, aluminum | — | — | Manufacturer spec |
| Interfaces | RS232, RS422 | — | — | Manufacturer spec |
Fiber-Optic North Seeker — N001 / N002
| Item | N001 | N002 | Evidence |
|---|---|---|---|
| North-finding accuracy | ≤0.06° | ≤0.1° | Manufacturer spec |
| Azimuth resolution | 0.01° | 0.01° | Manufacturer spec |
| Attitude accuracy / range | ≤0.01°; ±90° | ≤0.01°; ±90° | Manufacturer spec |
| Startup / north-finding time | ≤10 s / ≤3 min | ≤10 s / ≤3 min | Manufacturer spec |
| Power / voltage | ≤20 W, 10–26 V DC | — | Manufacturer spec |
| Dimensions / weight | 138×122×120 mm (display) or 117×104×105 mm; ≤1.5 / 1.1 kg | — | Manufacturer spec |
| Environment | −40…+65 °C, aluminum | — | Manufacturer spec |
| Interfaces | RS232, RS422 | — | Manufacturer spec |
Applications
Mining and drilling alignment · antenna and radar north-alignment · ship and vehicle initial alignment · tunnel surveying.
No GNSS needed?
Correct — gyrocompassing finds true north from Earth rotation alone, ideal for GPS-denied initial alignment (manufacturer specification).
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