OPB872N51

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Optical sensors such as Photointerrupters and Slot Type Transistor Output have gained widespread use in modern technology. The OPB872N51 is an example of such an optical device and it has become increasingly popular within industrial applications due to its reliable non-contact switching capability. In this article, we will be exploring what OPB872N51 is, the application fields that it can be used in, and how it works.

What is OPB872N51?

The OPB872N51 is an optical sensor, specifically classified as a Photointerrupter and Slot Type with Transistor Output. The sensor is only 17.8mm in width and 9.2mm in height, which makes it small enough to be easily integrated into a variety of applications. It is made from a non-conductive material, which helps to increase its robustness and resistivity in a wide range of environmental conditions.

The OPB872N51 is a short-cut type with through-beam type slot structure. It has two parts, a transmitter and a receiver, which is designed to detect the presence of an object. The sensor includes two detector sections, a transmitter (light source) and a receiver (light detector). The transmitter emits an infrared light beam which is detected by the receiver when the object interrupts the beam.

Application Fields and Working Principle

Due to its small size and reliability, the OPB872N51 can be applied to many industries in different fields. Common applications include material handling, dispensing, automation control, printing, and optical character recognition (OCR). Additionally, the sensor can be used to detect the amount and color of optical materials, such as paper or cardboard, when used in printing or copying machines. Such sensing capabilities can be used to reliably identify various parts or materials in industrial processes, and to automate tasks such as material handling.

The OPB872N51 has a detection range of 0.2mm to 4.0mm, allowing it to detect objects that are very close and precisely “read” information from small objects such as cards or labels. Its -35V to +35V operating voltage means that the sensor can be used in high-voltage applications such as electrical machines or industrial automation.

The working principle of the OPB872N51 is relatively simple. The transmitter is designed to emit an infrared light beam that is received by the detector, which is then sent to the transistor output hybrid IC. When an object interrupts the light beam, the transistor output is switched on and off, allowing it to accurately detect the presence or absence of an object. Its optical isolation feature ensures that the output is not affected by external electrical noise.

Conclusion

In conclusion, the OPB872N51 is a reliable and versatile optical sensor that is widely used for a variety of applications in different industries. Its small size and robust construction make it ideal for use in environments where space is limited and reliability is a priority. The working principle of the device is relatively easy to understand, making it easy to integrate into a wide range of systems and applications.

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