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Fiber Optic Gyroscope (FOG) Inertial Measurement Units (IMUs) from OEM manufacturers offer
high-precision, tactical to strategic grade performance
, designed for demanding environments, autonomous vehicles, and aerospace applications. Key performance metrics include
bias instability (in-run) as low as 0.001°/hr to 0.04°/hr
and
angle random walk (ARW) as low as 0.001 to 0.015°/√hr
.
Key OEM FOG IMU Manufacturers and Performance
- EMCORE Corporation: Known for the EN-300 FOG IMU, which achieves bias in-run stability as low as 0.04°/hr and ARW of 0.015°/√hr. Their photonic FOG (TAC-450-320) and closed-loop FOG sensors provide high-performance navigation and stabilization for defense and aerospace.
- Advanced Navigation: Offers high-accuracy FOG IMUs (e.g., in their Motus and Boreas series) with bias instability as low as 0.001°/hr, providing 0.005° roll/pitch accuracy.
- KVH Industries: Produces FOG-based IMUs (1750 and 1775) used for high-accuracy, continuous navigation, often paired with VectorNav inertial systems.
- Ericco (China): Produces FOG IMUs like the ER-FOG-02, designed for full-temperature compensation and high-precision navigation, offering 3-axis angular velocity and acceleration measurement.
- FIBERPRO: Manufactures tactical-grade FOG IMUs (FI 200) for unmanned systems, drones, and ROVs, known for high reliability, low drift, and robust performance in GPS-denied environments.
- MostaTech: Specializes in miniature FOG sensors using spliceless, 40-micron polarization-maintaining (PM) fibers for improved, stable performance in UAVs and robots.
Typical Performance Characteristics (FOG IMU)
- Gyro Bias Instability (In-run): Typically ranges between 0.001°/hr and 0.1°/hr .
- Angle Random Walk (ARW): Generally 0.001 - 0.015°/√hr .
- Roll/Pitch Accuracy: As high as 0.005° to 0.03° .
- Heading Accuracy: Often 0.01° - 0.5° , depending on GNSS availability.
- Operating Temp Range: Typically -40°C to +85°C, with full calibration.
Key Advantages in OEM FOGs
- High Stability & Accuracy: Superior to MEMS alternatives for long-duration, GPS-denied navigation.
- Low SWaP-C: Modern FOGs are increasingly designed with lower Size, Weight, Power, and Cost (SWaP-C),, making them more accessible for UAVs and robotics.
- No Dead Zones: FOGs offer near-instantaneous response and high reliability.
- Customization: Many manufacturers offer OEM-specific form factors, including easy-to-integrate modular designs without standard housing for space-constrained, high-precision applications.
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IMU & AHRS | Inertial Navigation SystemsHigh-Performance and Compact Inertial Sensors. Advanced Navigation is a leading manufacturer of high-accuracy MEMS and FOG inertia...Advanced Navigation
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New Precision FOG IMU Achieves General Availability | USTOct 27, 2020 — The COTS (Commercial Off-The-Shelf) EN-300-3 model achieves bias in-run stability as low as 0.04 degree/hr with ARW (Angle Random ...Unmanned Systems Technology
-
KVH and VectorNav Collaborate to Offer Precision Inertial ...May 1, 2018 — “The combination of VectorNav's Tactical Series products with our FOG-based IMUs provides a great solution for applications that r...KVH
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IMU & AHRS | Inertial Navigation Systems
Advanced Navigation
https://www.advancednavigation.com
› imu-ahrs
Advanced Navigation
https://www.advancednavigation.com
› imu-ahrs
Advanced Navigation is a leading
manufacturer
of high-
accuracy
MEMS and
FOG
inertial measurement units (
IMU
) and attitude and heading reference systems (AHRS).
Read more
IMU - Inertial Measurement Unit
SBG Systems
https://www.sbg-systems.com
› Glossary
SBG Systems
https://www.sbg-systems.com
› Glossary
The first factor is
sensor accuracy
, which directly impacts the
precision
of measurements. High-quality IMUs have low bias, drift, and noise, ensuring that the ...
Read more
Top 10 FOG Inertial Measurement Unit (IMU) Suppliers in ...
GuideNav
https://guidenav.com
› blog › top-10-fog-inertial-meas...
GuideNav
https://guidenav.com
› blog › top-10-fog-inertial-meas...
GuideNav brings over 15 years of specialization in inertial navigation
, delivering high-precision FOG IMUs tailored for defense, aerospace, marine, and ...
Read more
Choosing an IMU: FOG vs MEMS IMUs
Canal Geomatics
https://canalgeomatics.com
› knowledgebase › choosin...
Canal Geomatics
https://canalgeomatics.com
› knowledgebase › choosin...
The superior
accuracy
of a
FOG
is seen in low bias instability, or drift over time. For applications requiring dead reckoning position updates or experiencing ...
Read more
FOG & Quartz MEMS Inertial Sensors - Gyros, IMU, INS
Unmanned Systems Technology
https://www.unmannedsystemstechnology.com
› emcor...
Unmanned Systems Technology
https://www.unmannedsystemstechnology.com
› emcor...
EMCORE Corporation
is a leading designer and manufacturer of the world's highest-performance Fiber Optic Gyro (FOG), Ring Laser Gyro (RLG), and MEMS-based ...
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High-Precision Inertial Sensors for Military, Aerospace & ...
Defense Advancement
https://www.defenseadvancement.com
› micro-magic
Defense Advancement
https://www.defenseadvancement.com
› micro-magic
Micro-Magic is a leading
manufacturer
of MEMS, quartz,
FOG
and RLG inertial
sensing
systems for military, aerospace and defense applications.
Read more
IMU-LN200 Tactical Grade Fiber Optic Gyros (FOG)
NovAtel
https://novatel.com
› products › imus
NovAtel
https://novatel.com
› products › imus
The
IMU
-LN200 contains the Northrop Grumman LN200
IMU
. The LN200 is a tactical grade
IMU
containing closed-loop fiber optic gyros and solid-state silicon ...
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Customer guide
Silicon Sensing
https://siliconsensing.com
› category › customer-guide
Silicon Sensing
https://siliconsensing.com
› category › customer-guide
FOGs are known for their precision and stability
, making them ideal for high-end applications such as navigation systems in commercial aviation and military ...
Read more
Low Cost 3 Axis FOG North Seeker Supplier - ERICCO China
Ericco Inertial Technology
https://www.ericcointernational.com
› north-finders › e...
Ericco Inertial Technology
https://www.ericcointernational.com
› north-finders › e...
North seeking
precision
(1σ), 1 secψ, 0.5 secψ ; Working latitude, 65°N~65°S ; Attitude
accuracy
(1σ), 0.03° ; Holding, 20min ; Heading measurement range, 0°~ 360°.
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(820)
KVH and VectorNav Collaborate to Offer Precision Inertial ...
KVH
https://ir.kvh.com
› news-releases › news-release-details
KVH
https://ir.kvh.com
› news-releases › news-release-details
May 1, 2018
—
VectorNav's Tactical Series line of inertial navigation systems now supports KVH's high-performance fiber optic gyro-based 1750
IMU
and 1775
IMU
.
Read more