• Multi-position Static Calibration : The sensor is placed in different, fixed, static positions (e.g., all six faces of a cube) to determine zero-bias and scale factor errors.
• Figure-of-Eight / Dynamic Calibration : The sensor is moved in a figure-eight pattern for 10-30 seconds, covering all three axes to calibrate the accelerometer, gyroscope, and magnetometer.
• Allan Variance Analysis : A stochastic method used to determine the noise parameters of the IMU.
• Least Squares Fitting : A mathematical method for determining unknown parameters in the calibration equation.
• Robot-assisted/Turntable Calibration : High-precision calibration using a mechanical platform that rotates the IMU to known orientations.
• In-Field Calibration (No Equipment) : A robust method requiring only manual movement, often used for drones or handheld devices, exploiting gravitational stability.
  IEEE Xplore +6

• Accelerometer Calibration: Focuses on detecting the gravitational vector at different orientations. The sensor must be kept still, often recording for 3 seconds per position.
• Gyroscope Calibration: Requires finding the zero-rate offset by keeping the sensor stationary.
• Magnetometer Calibration: Often involves the "figure-eight" motion to align with magnetic North.
• Software-based Tools: Using tools like VESC IMU Wizard or DJI Fly app to guide the user through the process.
  YouTube +4

• Temperature Stability: Ensure the sensor is at a stable temperature.
• Avoid Metallic Interference: Keep the sensor away from metal when calibrating.
• Data Quality: Inspect timestamps to ensure consistent data rates, particularly when combining with camera data.
  IEEE Xplore +2

Calibrate IMUs - IMU documentation - Vicon Help

May 13, 2024 — Wave the sensor in a figure-of-eight for at least 10 seconds, ensuring that it rotates through all three axes during the motion. P...

Vicon

A robust and easy to implement method for IMU calibration without external equipments

A paper proposes a robust and easy-to-implement method for calibrating an inertial measurement unit (IMU) without external equipme...

IEEE Xplore

IMU calibration method and calibration process

Apr 10, 2024 — The calibration methods of IMU are mainly divided into two categories: static calibration and dynamic calibration. Static calibrat...

Ericco Inertial Technology

45s

9-Axis IMU LESSON 5: Calibrating the BNO055 9-axis Inertial ...

YouTube · Paul McWhorter

IMU Calibration and Validation in a Factory, Remote on Land ...

Two different methods of calibration are investigated: Kalman smoothing using an Aided Inertial Navigation System (AINS) framework...

College of Engineering - UC Santa Barbara

Improving the calibration process of inertial measurement unit ...

To calibrate an IMU, five steps must be taken, shown in Figure 1. In the first step, the mathematical model of the sensor output (

The Institute of Navigation

IMU Calibration Guide - Noraxon

Which Calibration Method Should I Use? * If available, the Walking calibration is recommended. However, this calibration requires ...

Noraxon

IMU calibration without mechanical equipment - Padova

Traditionally the calibration of an IMU has been done by using spe- cial mechanical platforms such as a robotic manipulator, movin...

Università di Padova

Camera IMU calibration · ethz-asl/kalibr Wiki - GitHub

May 24, 2023 — One should make sure to inspect the IMU timestamp DTs. One example of bad IMU timestamps where a burst of IMU are send at a rate o...

GitHub

6m

VESC IMU Accelerometer Calibration - How To

YouTube · surfdado

IMU Calibration Guide - Log in to DJI

Power on the goggles, go to "Setting" > “Safety” > “Aircraft IMU Calibration”, tap “Start”, and follow the on-screen prompts.

DJI