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| Both sides previous revisionPrevious revisionNext revision | Previous revisionLast revisionBoth sides next revision | ||
| resources:eval:user-guides:inertial-mems:imu-overview [27 Jul 2021 00:11] – [Additional Resources!] Chas Frick | resources:eval:user-guides:inertial-mems:imu-overview [31 Aug 2021 21:58] – [Linear-g Rejection (Linear-g Sensitivity)] Chas Frick | ||
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| Can be approximated with the formula: ND ≅ ARW/60* √2 | Can be approximated with the formula: ND ≅ ARW/60* √2 | ||
| - | ====== Linear Acceleration Effect (Linear-g) ====== | ||
| - | Measured in degrees/ | ||
| ====== Vibration Rectification Error (VRE) ====== | ====== Vibration Rectification Error (VRE) ====== | ||
| Line 50: | Line 48: | ||
| ====== Cross-Axis Sensitivity ====== | ====== Cross-Axis Sensitivity ====== | ||
| - | Unintended effect where rotation/ | + | Unintended effect where rotation/ |
| + | Can be calculated from axis to axis misalignment error for accels/ | ||
| + | |||
| + | Example: For the ADIS16448, the accel axis to axis misalignment is 0.2 degrees. Therefore Cross-axis sensitivity accel is sin(0.2) = 0.197%. Gyro is sin(0.05) = 0.09%. Magnetometer: | ||
| + | |||
| + | ====== Linear Acceleration Effect (Linear-g), Linear Acceleration Effect on Bias, Linear-g Rejection (Linear-g Sensitivity) ====== | ||
| + | Unintended effect where linear acceleration is detected as rotation. Measured in degrees/ | ||
| - | ====== Linear-g Rejection (Linear-g Sensitivity) ====== | ||
| - | Unintended effect where linear acceleration is detected as rotation | ||
| ====== Additional Resources! ====== | ====== Additional Resources! ====== | ||
| - | | + | * Information on Allan Variance for Gyros: http:// |
resources/eval/user-guides/inertial-mems/imu-overview.txt · Last modified: 31 Aug 2021 22:00 by Chas Frick