Fundamentals of magnetic sensors: detection examples | Basic Knowledge of AMR Sensors (Magnetic Sensors)

AMR Sensors (Magnetic Sensors)

AMR Sensors (Magnetic Sensors）Fundamentals of magnetic sensors: detection examples

Open / close and position detection examples
Rotation detection examples: Locations on same plane
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Open / close and position detection examples

When the sensor and magnet are on the same plane:

When sensor and magnet are not on the same plane:
(Sensor center is on same axis)

When the sensor and magnet are not on the same plane:
(Perpendicular to magnetization direction)
(Sensor center is on same axis)

For details on the optimum magnet size and positional relationship, see the Simulation Tool.

Download AMR (Magnetic) Sensor Simulation Tool

Rotation detection examples: Locations on same plane

Detection example 1: Rectangular magnet x 1 pc

AMR sensor output image:
Detects 4-part resolution by single rotation

Detection example 2: Rectangular magnet x 4 pcs

AMR sensor output image:
Detects 4-part resolution by single rotation

What is an AMR sensor?

Differences from Hall effect sensors

Differences from reed switches

AMR sensor principles of operation

Detection examples

Glossary

Design Support

AMR Simulation Tool Download

Download a tool that enables you to easily simulate the relationship between the positions (the ON / OFF area) of the AMR sensor and the magnet.

Evaluation board

Here we will introduce breakout boards for checking the operations and characteristics of AMR sensors.

Datasheet

You can view technical documents about AMR sensors.

Video Library

See videos related to AMR sensors.

Basics

Learn about the basics of AMR sensors (magnetic sensors), including their general characteristics and advantages, how they differ from other types of sensors used, and more.

Selection Guide

Customers can find desired AMR sensors on various comparison axes based on detection applications, supported voltages, sensitivity, frequencies and more.

Application Guide

Here are ways opening / closing detection, position detection, rotation detection, and omnidirectional detection are each used and applied as applications of AMR sensors (magnetic sensors).

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AMR Sensors (Magnetic Sensors）Fundamentals of magnetic sensors: detection examples

Open / close and position detection examples

When the sensor and magnet are on the same plane:

When sensor and magnet are not on the same plane:
(Sensor center is on same axis)

When the sensor and magnet are not on the same plane:
(Perpendicular to magnetization direction)
(Sensor center is on same axis)

Rotation detection examples: Locations on same plane

Detection example 1: Rectangular magnet x 1 pc

Detection example 2: Rectangular magnet x 4 pcs

Design Support

Avoiding Counterfeit Products

Inquiries

萝莉影视

AMR Sensors (Magnetic Sensors）Fundamentals of magnetic sensors: detection examples

Open / close and position detection examples

When the sensor and magnet are on the same plane:

When sensor and magnet are not on the same plane: (Sensor center is on same axis)

When the sensor and magnet are not on the same plane: (Perpendicular to magnetization direction) (Sensor center is on same axis)

Rotation detection examples: Locations on same plane

Detection example 1: Rectangular magnet x 1 pc

Detection example 2: Rectangular magnet x 4 pcs

Design Support

Related Links

Avoiding Counterfeit Products

Inquiries

When sensor and magnet are not on the same plane:
(Sensor center is on same axis)

When the sensor and magnet are not on the same plane:
(Perpendicular to magnetization direction)
(Sensor center is on same axis)