OPB872T55TXV

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Optical sensors, also known as photointerrupters, are equipped with an infrared light source and a photodetector, and are specially designed for detection and switching of non-contact objects. There are two major types of optical sensors - slot type and thru-beam type. Slot type sensors are designed to detect the presence and/or passage of objects through a slot or infrared-ray beam, while the thru-beam type detects the presence or absence of objects outside the slot or infrared-ray beam. The OPB872T55TXV is an optical sensor that falls under the category of slot type with a transistor output.

Application Field

The OPB872T55TXV is designed to provide superior detection stability and high speed response for applications such as paper processing, package inspection, and material handling. It is suitable for use in a range of environments, including wet or dusty conditions, and can detect size changes in objects passing through a slot or infrared-ray beam. This feature makes the OPB872T55TXV particularly suitable for the detection of non-contact objects in a variety of applications.

Working Principle

The principle behind the OPB872T55TXV is based on PhotoMOS technology, which uses solid state technology to detect the presence of non-contact objects. The sensor works by having a light source emitting infrared light which is directed towards a photodetector. When an object passes through the slot or beam, the light is interrupted, causing a change in the voltage output of the photodetector. This change in voltage output triggers the transistor output to switch and report the detection.

To ensure that the sensor is precisely and reliably triggered, the OPB872T55TXV utilizes forward voltage sensing technology. This technology triggers the output based on the voltage of the photodetector neurons. As the detection voltage increases, the transistor output of the device becomes more sensitive and responds more reliably. This makes the OPB872T55TXV well suited for high-speed detection applications.

The OPB872T55TXV also features an integrated resistor and LED indicator. The resistor ensures a constant current to the photodetector neurons, allowing for more precise and accurate detection. The LED indicator indicates the current on/off state of the sensor, further enhancing the usability and efficiency of the device.

Conclusion

The OPB872T55TXV is an optical sensor that belongs to the slot type with a transistor output. It is designed for use in paper processing, package inspection, and material handling applications, and is suitable for use in a wide range of environments, including wet or dusty conditions. The working principle of the OPB872T55TXV is based on PhotoMOS technology, and utilizes forward voltage sensing and an integrated resistor and LED indicator to provide superior detection stability and high speed response.

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