OPB822S

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The OPB822S is a type of optical sensor that utilizes a photointerrupter to sense the passage of a solid object. It is of the slot type, and has a transistor output. This type of sensor is generally used in applications such as safety switches, where a physical object needs to be detected. This article will discuss the application fields, working principle, and relevant features of this particular sensor.

Application Fields

The primary application field for the OPB822S is safety switches, as mentioned previously. This is because the sensor is designed to detect physical objects, such as a hand, and close a safety circuit if one is present. In fact, the OPB822S is certified by UL, making it an ideal choice for applications requiring a high level of safety. Other common applications include motor control, automated assembly systems, and robotics.

Working Principle

The OPB822S is a slot-type photointerrupter that functions by detecting when a beam of infrared light is blocked or interrupted. This occurs when a solid object, such as a hand, passes through the slot in the sensor. When this happens, the sensor will output a transistor signal that can be used to trigger other components or devices.

Relevant Features

The OPB822S is a reliable and versatile sensor thanks to its selection of relevant features. It utilizes a slot type photointerrupter arrangement, which offers greater sensitivity than many other similar sensors. In addition, it operates with fast switching speeds of up to 500kHz and a low dark current of 1nA. It is also incredibly compact, making it an ideal choice for tight spaces or portable applications.

Finally, the OPB822S is also capable of operating in a variety of environmental conditions, offering protection against dust, humidity, and temperature. This makes it an ideal choice for use in harsh, industrial environments.

Conclusion

The OPB822S is a slot type photointerrupter with a transistor output, which is primarily used in safety switches. It utilizes a beam of infrared light to sense the presence of physical objects, and can output a signal to trigger other components. It also has a selection of relevant features, such as fast switching speeds, low dark current, and protection against environmental conditions. This makes it an ideal choice for a wide range of safety and control applications.

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