MostaTech will present its miniature fiber optic gyroscopes (FOGs) and FOG-based inertial measurement units (FOG IMUs) for UAVs, drones, and robotics at INTERGEO 2025, Stand 0H113, on October 7-9 in Frankfurt, Germany.
Thumb-Sized Fiber Optic Gyros
MostaTech’s VG191A and VG091A-4LN gyros combine ultra-compact design with high-performance capabilities. The VG191A measures 24mm in diameter and 40mm in length, offering low-noise performance of 0.015 °/√h ARW and 2 °/h bias stability, while the slightly longer VG091A-4LN, at 52mm, delivers exceptional performance of 0.01 °/√h ARW and 1 °/h bias stability.
Both gyros are housed in μ-metal for enhanced magnetic immunity, integrate optics and electronics, and require only 0.5W for operation. Their cylindrical design makes them ideal for pipeline inspection, underground utility mapping, borehole surveying, and other demanding applications.
Three-Axis Fiber Optic Gyro with High-Speed Output
The G321M is an advanced three-axis FOG designed to meet the industry’s demand for compact, high-performance inertial sensors. Measuring 53 x 53 x 36mm, it offers an 8kHz data output rate and features three single-axis FOGs along with a fully integrated three-channel ADC board with an RS422 interface.
The G321M’s low-noise performance features a bias stability of 1°/h and an ARW of 0.025°/√h. Enhanced with built-in magnetic shielding, it ensures reliable operation in environments with high magnetic interference. Despite its robust capabilities, the G321M remains lightweight at 145 grams and consumes only 2W of power.
MostaTech will also showcase:
- VG221: The smallest fiber optic gyro on the market, measuring ∅33 x 12mm, weighing just 15 grams, and consuming only 0.3W. It sets a new industry benchmark for SWaP (size, weight, and power).
- U121D and U123D IMUs: SWaP-optimized inertial measurement units combining miniature FOGs with MEMS accelerometers, offering low-noise performance, high bias stability, and enhanced magnetic shielding for reliable operation in challenging environments.
MostaTech’s inertial sensors are designed as low-SWaP, cost-effective, non-ITAR solutions well-suited for various space- and layout-limited applications including inertial navigation systems (INS) in UAVs, UUVs, USVs, ROVs, and gimbal/camera stabilization.
Visit Stand 0H113 at INTERGEO 2025 to meet the MostaTech team.






