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Electronic Distance Measuring Instruments

Electronic Distance Measuring Instruments

Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...

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Related Experiment Video

Updated: May 31, 2026

Long-term Behavioral Tracking of Freely Swimming Weakly Electric Fish

Long-term Behavioral Tracking of Freely Swimming Weakly Electric Fish

Published on: March 6, 2014

[Research progress in electromagnetic tracking method].

Xin Ge, Xiaomei Wu, Yuanyuan Wang

Zhongguo Yi Liao Qi Xie Za Zhi = Chinese Journal of Medical Instrumentation

|June 29, 2011

Summary

This summary is machine-generated.

Electromagnetic tracking precisely monitors object position and orientation using magnetic fields. This review classifies methods, algorithms, and calibration techniques, addressing key challenges for future advancements.

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Last Updated: May 31, 2026

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Published on: January 3, 2018

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Area of Science:

Physics
Engineering
Computer Science

Context:

Electromagnetic tracking is a crucial technology for determining the position and orientation of objects in 3D space.
It relies on generating and sensing electromagnetic fields to infer spatial parameters.

Purpose:

To provide a comprehensive summary and classification of electromagnetic tracking methods.
To discuss tracking algorithms, calibration techniques, and critical development issues.
To guide future research and applications in electromagnetic tracking.

Summary:

This paper reviews electromagnetic tracking, categorizing methods by magnetic field generation, source/sensor configurations, and geometry.
It also examines tracking algorithms and calibration procedures.
Critical challenges and future directions are analyzed to foster further development.

Impact:

Enhances understanding of electromagnetic tracking principles and methodologies.
Provides a foundational resource for researchers and developers in the field.
Aims to accelerate innovation and adoption of electromagnetic tracking technologies.