D40R-SPU-21-10

Magnetic sensors, such as the D40R-SPU-21-10, are used for a wide variety of applications and for the most part their inner workings and principles of operation remain the same. This article will discuss the application field and working principle of the D40R-SPU-21-10, a type of magnetic sensor.

What Is the D40R-SPU-21-10 Magnetic Sensor?

The D40R-SPU-21-10 is an angular position, speed, and proximity sensing module, the multi-sensor combines a magnetic Hall effect and a high temperature reed switch. It is designed to detect and measure the angular position of a rotating object, as well as measure the speed and proximity of that object. This module can be used to detect the position of the speedometer gear, the rotating shaft of an electric motor, or any other rotating objects.

Principle of Operation

The D40R-SPU-21-10 is equipped with two different sensing elements: a high temperature reed switch and a Hall effect sensor. The reed switch acts as the proximity sensor and is located on the upper side of the module. As the rotating object passes near the switch, its magnetic field interrupts the normally closed contacts, sending an output signal. On the lower side of the module, the Hall effect sensor is located. This device detects the rotation of a nearby magnet and the vibration of its pole. As the magnet passes by the sensor, the rotation is converted into an electrical signal that is sent to the output. The Hall effect sensor also provides an indication of speed by monitoring the time intervals between the outputs.

Applications

Due to its versatile design, the D40R-SPU-21-10 can be used in a variety of applications, such as:

• For angular position detection, such as for the speedometer gear in a vehicle (measuring the angular velocity of the motor vehicle)
• For measuring the speed of a rotating object
• For detecting when an object is moving or stationary
• For automated assembly line systems
• For other rotating objects, such as in robotics

Conclusion

The D40R-SPU-21-10 magnetic sensor is a versatile and reliable tool for sensing the angular position, speed and proximity of a rotating object. It combines the use of both a high temperature reed switch and a Hall effect sensor, helping to ensure accurate sensing with minimal power consumption. The D40R-SPU-21-10 is well suited for a variety of applications, including measuring the speed of a motor vehicle, detecting when an object is in motion, and automated assembly line systems.