AMR Sensors (Magnetic Sensors)

These products are magnetic sensors using AMR elements whose resistance varies according to the strength or direction of the magnetic field. Combination with a magnet permits non-contact rotation detection or position detection.

There are two types of sensors: magnetic switches with a built-in IC that outputs High/Low digital signals according to the magnetic strength and analog output type switches whose output voltage varies according to the magnetic field.
Magnetic switches are most commonly used for cylinder position detection, smart meters, and open/close detection of single-lens reflex cameras, video cameras, refrigerators, etc.
Analog output type switches help reduce the size and power consumption of encoders for machine tools.

Analog output type switches for encoders

Enables non-contact detection of rotation or displacement by mounting a magnet on the rotary shaft of the motor etc. and bringing the target close to it. This type of switch helps reduce the size and power consumption of encoders in machine tools etc.

Tamper Detection

3-dimensional sensing is supported, enabling magnetic field detection in all directions with the same sensitivity.
This magnetic switch can detect a magnetic field in an unspecified direction, making it suitable for tamper detection for electricity meters, gas meters, etc.

Position/Rotation Detection
-General-Purpose Type-

General-purpose type that can detect a broad range of movements, such as position detection and rotation detection, through combination with a magnet.Please select the appropriate product depending on the conditions of use (e.g. supply voltages, response frequency).

Rotation Detection
-High accuracy resonators Type-

Specialized for detecting rotations.
Stable output characteristics can be gained, so this type of magnetic switch achieves high accuracy detection of rotational displacements. Using two switches enables the sensing of the rotational direction.

Characteristics, dimensions, features, and applications of AMR sensors

AMR Sensors (Magnetic Sensors)

Product Lineup

Technical Reference

Basic Knowledge of AMR Sensors (Magnetic Switches)

Application Guide of AMR Sensors (Magnetic Switches)

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