OPB802L55

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Optical Sensors typically can provide a wide range of applications due to their ability to detect and enable communication between two distant points. Photointerrupters, which are one type of optical sensors, are typically used for low-speed applications such as detecting the presence of objects or switching circuits. The OPB802L55 slot type photointerrupter is an example of a transistor output optical sensor specifically suited for such applications.

Application Field

The OPB802L55 has a transmission sensor width of 0.29–2.54mm depending on the model and it can detect objects up to 0.5mm. It has an operating voltage of 4.5–24vDC and a response time of 6ms max with a switch life of 100M time/min. It is built with twin light receiving elements and designed to reject external light interference. This makes the OPB802L55 suitable for a wide range of applications that require precision, high speed response and accuracy. These include industrial applications such as optical measurement, counting and packaging amongst many others. It is also suitable for small-scale electronic systems such as personal computers and communication gear.

Working Principle

The OPB802L55 is an optical slot type photointerrupter. It works on the principle of light being interrupted when an object passes through its gap. The OPB802L55 consist of two parts; an infrared LED which transmits light pulses and a photo-transistor which receives the light. When the object passes through the gap, the infrared beam from the LED is blocked and the receiver element detects the change in the light intensity which is then used to generate an output signal.

The newly generated signal from the receiver element triggers a switching circuit which provides a change in voltage to the microcontroller. This in turn causes it to send out a signal through its respective output. This output will indicate the presence or absence of the object. This is the basis of how the OPB802L55 works, sensing and indicating the presence of objects.

Conclusion

The OPB802L55 is a small-scale, high-speed optical slot type photointerrupter designed to detect the presence of objects. It works on the principle of light intensity being blocked when an object passes through its gap. This enables it to be used in a wide range of applications that require precision, accuracy and high-speed response to change in presence and absence of objects. This makes it suitable for many types of industrial applications such as optical measurement, counting and packaging amongst other applications.

The specific data is subject to PDF, and the above content is for reference