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Xsens MTi User Manual

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Magnetic Calibration Manual
User Manual
Please visit mtidocs.xsens.com for the latest version of this document.
Created: Monday, March 13, 2023
Copyright © Xsens. All Rights Reserved.
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Xsens MTi Specifications

General IconGeneral
TypeInertial Measurement Unit (IMU)
GyroscopeYes
AccelerometerYes
Storage Temperature-40°C to +85°C
MagnetometerYes
InterfaceUSB, UART
Operating Temperature-40°C to +85°C
Communication InterfacesUSB, UART
Power Supply3.3 VDC
Magnetometer Range±1.9 Gauss
Barometer Range300 to 1100 hPa

Summary

Introduction to Magnetic Calibration

Magnetic Distortion Theory

Understanding Magnetic Distortions

Explains Earth's magnetic field, distortion causes, and types (temporal, static).

Calibration Tools Overview

Introduces Magnetic Field Mapper, Representative Motion, and In-Run Compass Calibration.

Using the Magnetic Field Mapper

Mounting and Preparation

Instructions for attaching the MT to an object and general preparation steps.

Performing the Calibration Measurement

Details the steps for conducting 3D and 2D calibration measurements.

Analyzing Results and Error Causes

Explains advanced results, common errors, and example reports.

Non-default Calibration Procedures

Using Previously Recorded Measurements

Guidance on processing logged sensor data for calibration.

Off-line Magnetic Field Mapping

Procedure for generating and processing log files offline.

Magnetic Field Mapping SDK

Information on using the SDK for embedding MFM in third-party applications.

In-Run Compass Calibration and RepMo

Covers continuous background calibration methods (ICC & RepMo).

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