WFM120-120P311

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Optical Sensors are designed to measure the intensity level of light, and they can be used as a form of detection. Photointerrupters are one type of optical sensor, and they use phototransistors to detect changes in light intensity. The WFM120-120P311 is a slot type photointerrupter with transistor output that can detect small changes in light intensity. This sensor can be used for a variety of applications, and its working principle is based on light interruption.

Applications of the WFM120-120P311

The WFM120-120P311 is well-suited for a range of applications due to its ability to detect small changes in light intensity. This sensor can be used for rotational speed detection of motors and fans, for sensing the position of components on an assembly line, or for contact-less switch and encoder applications. The sensor can also be used to detect presence or absence of light, allowing it to be used as an alternative to traditional mechanical switches. The sensor is also used in industrial safety equipment to detect the presence or absence of an object or person.

Working Principle

The working principle of the WFM120-120P311 is based on light interruption. It utilizes the phototransistor output to detect changes in the light intensity for the particular application. The sensor emits a beam of light from its transmitter side, and when the receiver side is blocked, the output is altered accordingly. This interruption of the light beam is monitored by the built-in phototransistor and used to determine the situation of the application.

The phototransistor detects changes in the received light intensity and produces a corresponding output signal. This output signal can then be used for a variety of purposes, such as in controlling a motor or detecting the presence of an object. This feature makes the sensor particularly useful for applications where precise measurements or control processes are required.

Conclusion

The WFM120-120P311 is a slot type photointerrupter with transistor output that can detect small changes in light intensity. This sensor is well-suited for a range of applications, such as rotational speed detection, position sensing, and contactless switching. Its working principle is based on light interruption, and it utilizes the phototransistor output to detect changes in the light intensity for the particular application. This sensor allows for accurate sensing and control of a variety of applications, making it an ideal choice for many industrial, commercial, and domestic applications.

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