PM-Y45

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Optical sensors are devices designed to detect or measure light and transforms it into other forms of energy such as electrical signals. Photointerrupters (also known as photoelectric sensors) are a specialized type of optical sensor which detect an interrupt or “break” in a light beam. Slot type photointerrupters are specifically designed to detect the presence of an object that passes through a light path enclosed in a slot. The PM-Y45 is a high performance slot type photointerrupter with logic output. This article will explore the application fields and working principle of the PM-Y45.

Application Fields

The PM-Y45 slot type photointerrupter can be used in a wide range of applications, such as order sorting, detection of product movement, and presence detection. It is suitable for integration into a range of industrial automation systems and can easily be incorporated into devices such as robots and packaging machinery.

The PM-Y45 can also be used in a variety of home automation applications, including door counters, switch detection, and circuit control. In addition, the PM-Y45 can be used in safety and security systems, such as intruder detection.

Working Principle

The PM-Y45 slot type photointerrupter consists of an infrared LED (light emitting diode) and an NPN silicon phototransistor, both of which are enclosed in a compact housing. The light emitted by the LED is directed onto the phototransistor, which is sensitive to IR light. When an object passes through the light path created by the LED and phototransistor, the phototransistor detects the disturbance and converts the light into an electrical signal.

The electrical signal is then transmitted through the output transistor of the photointerrupter to the user’s application circuit. If the phototransistor detects the presence of an object, a high logic level is detected at the output, and if the phototransistor does not detect an object, a low logic level is detected at the output.

Conclusion

The PM-Y45 slot type photointerrupter provides reliable detection of objects passing through a light path enclosed in a slot. It is suitable for a wide range of applications, including industrial automation, home automation, safety, and security systems. This device is easy to incorporate into various applications, and its working principle works reliably and accurately.

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