AH337-WG-7 Sensors, Transducers

The AH337-WG-7 is a magnetic sensor switch designed to reliably detect the presence or absence of a magnetic field. This switch contains a Hall-effect sensor that when exposed to a magnetic field, generates a signal proportionate to the intensity of the field. The AH337-WG-7 is a solid-state switch and is designed to replace a mechanical switch in a variety of applications including limit switches and proximity sensing applications.

Application Field

The AH337-WG-7 is ideal for many industrial and commercial applications that require detection of the presence or absence of a magnetic field. It is capable of detecting very small magnetic fields so the AH337-WG-7 is commonly used as proximity sensors in industrial automation systems for robotic arms and other automated machinery. It is also commonly used as a limit switch in applications where mechanical switches cannot be used. It can be used to accurately detect the position of slides and gates in industrial production lines.

The AH337-WG-7 is also commonly used in consumer applications such as automobile cameras or motor sensing applications. It can also be used in consumer electronics such as gaming keyboards and remote controls. The AH337-WG-7 is also popularly used in burglar alarms and security systems.

Working Principle

The AH337-WG-7 is composed of a Hall-effect sensor and necessary electronic components sorted in a single package. The Hall-effect sensor consists of a semiconductor material with the necessary electrodes implanted into it. The Hall-effect sensor is exposed to a magnetic field via a surrounding metal case. When a magnetic field is present, the electrons in the semiconductor material are redistributed in the plane perpendicular to the magnetic field. This creates a voltage difference, known as the Hall voltage, which is the signal generated by the sensor.

A comparator circuit is used to compare the Hall voltage with a reference voltage. When the Hall voltage exceeds the reference voltage, a signal is outputted by the AH337-WG-7 indicating the presence of a magnetic field. The output signal can then be used by systems to initiate an action or a response. The reference voltage of the switch can be adjusted using two on board potentiometers for precise detection of the magnetic field.

Conclusion

The AH337-WG-7 is a reliable and versatile magnetic sensor switch designed to detect the presence or absence of a magnetic field and is ideal for limit switch and proximity sensing applications. The AH337-WG-7 is a solid state switch, providing superior performance and reliability as it does not contain any moving parts. This switch is a popular choice for many industrial and consumer applications due to its robustness and accuracy in detecting small magnetic fields.

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