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Industrial precision sensing (client anonymized)
Sub-degree rotation from commodity IMUs
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Challenge
Measure vertical rotational rate from 0.5 to 60 deg/s in a swinging, magnetically noisy environment (ruling out magnetometers), on a board costing under $100 to make. No single low-cost IMU can resolve this.
Approach
Fused three 6-DOF IMUs with custom mathematical models and filters, and dynamically cancel gyro bias drift over time to keep readings honest.
Result
Hit the full 0.5-60 deg/s range within ~10% error, held over time, on a sub-$100 board — performance usually tied to far costlier hardware.
Sector
Industrial precision sensing (client anonymized)
Tech Stack
- Triple-IMU array
- Kalman / Mahony filtering
- Custom bias tracking
- Embedded C++
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Proof
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