GL-VG122-XX
GL-VG122-XX is a power-efficient inertial navigation system (INS) based on new MEMS sensors. It determines position, velocity, and heading without external signals, operates from a 3–5 V battery supply, and is housed in a compact 44×44×16 mm, 40 g enclosure.
The system is easy to integrate with GNSS and external sources via RS-422/485, and the GL-VG122-60 version supports gyrocompass-based alignment (gyrocompassing). The output rate is up to 1000 Hz.
The product line also includes sensing element units (GL-BC122 -20, -40, -60) for raw inertial data: factory calibration, stable operation, and high data output rate.
| Specification | GL-VG122-60 | GL-VG122-40 | GL-VG122-20 | GL-VG122 |
|---|---|---|---|---|
| Dimensions, mm | 44 × 44 × 16 | 44 × 44 × 16 | 44 × 44 × 16 | 44 × 44 × 16 |
| Weight, g | 40 | 40 | 40 | 40 |
| Single-battery supply, V | 3 - 5.25 | 3 - 5.25 | 3 - 5.25 | 3 - 5.25 |
| Technical specifications (1σ) | ||||
| Roll / pitch angle error | ||||
| — in static conditions | 0.02 | 0.025 | 0.03 | 0.4 |
| — under all conditions | 0.25° | 0.4° | 0.60° | 1.0° provided correction outage is no more than 2 minutes |
| Heading angle determination error | 3.0/cos(φ) | 5.7/cos(φ) | 9.1/cos(φ) (per contract) | 4° not in gyrocompassing mode! Determined only in motion with valid GNSS data |
| Heading determination time | 6 minutes | 6 minutes | 6 minutes | — |
| Heading hold error | 0.8 °/h | 1.5 °/h | 2.5 °/h | 50 °/h after performing the “drift cancellation” procedure |
| Position error | ||||
| — with valid GNSS data | According to GNSS receiver specifications | According to GNSS receiver specifications | According to GNSS receiver specifications | According to GNSS receiver specifications + 2 m |
| — with loss of valid GNSS data | 85 m / 3 min, 480 m / 6 min, 1020 m / 8 min, 3000 m / 12 min, 32000 m / 30 min | 120 m / 3 min, 740 m / 6 min, 1620 m / 8 min, 4980 m / 12 min | 160 m / 3 min, 1070 m / 6 min, 2400 m / 8 min, 7550 m / 12 min | 120 m / 1 min excluding heading kinematic error |
| Velocity error with valid GNSS data | 0.15 m/s | 0.15 m/s | 0.2 m/s | 0.3 m/s |
| Angular rate measurement error: bias, scale factor | 0.8 °/h, 0.1 % | 1.5 °/h, 0.1 % | 2.5 °/h, 0.1 % | 0.5 °/s, 0.3 % |
| Acceleration measurement error: bias, scale factor | 0.5 mg, 0.2 % | 0.5 mg, 0.2 % | 0.5 mg, 0.2 % | 0.5 mg, 0.2 % |
| Limits and interfaces | ||||
| Angular rate | ±300 °/s | ±400 °/s | ±400 °/s | ±400 °/s |
| Acceleration overload | ±20 g | ±20 g | ±20 g | ±20 g |
| Power consumption, W | 1 | 1 | 1 | 1 |
| Input / output interfaces | RS-485 4W | |||
| Operating life, h | >15,000 | >15,000 | >15,000 | >15,000 |
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+7 (495) 481-01-27 Moscow
+7 (342) 214-90-40 Perm
sales@gyrolab.ru
Moscow: Khimki, Kurkinskoye Highway, Bldg. 2
Perm: Klubnaya St., 2
Perm: Klubnaya St., 2
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Perm: Klubnaya St., 2
Moscow: Khimki, Kurkinskoye Highway, Bldg. 2
Moscow: Khimki, Kurkinskoye Highway, Bldg. 2
