OPL811

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The OPL811 is an optically operated, logic level output, positioned detector. It is designed to detect the presence or absence of an object at particular distances. The sensor can be used in a variety of applications, such as robotics, material handling equipment and factory automation.

The OPL811 is an integrated single chip detector. It consists of an infrared LED and a NPN silicon phototransistor detector integrated in the same package. It features a visible red-light status indicator, which allows for easier detection and orientation in operation. The device is designed to operate from a 5V single supply to 32 VDC with an operating current range from 70 mA. It can be mounted in any orientation.

The OPL811\'s working principle relies on a light beam created with a LED and the phototransistor detectors. The light beam is aimed at an object, and when the object blocks the path of the beam, it is detected. The sensor then triggers the logic high output. If the object is removed, the beam is re-established and the logic low output is triggered.

The OPL811 is sensitive and can detect objects from 0 cm (0") to 25 cm (10") in the dark. The detection distance reduces when the presence of ambient light sources is present. The presence of light can cause false activation or cause the sensing range to decrease. Therefore, the OPL811 should be shielded from light sources to ensure reliable performance. It also features a start up delay time, which helps to reject false activations.

The OPL811 is an ideal solution for applications that require the detection of objects at certain distances. The device is relatively low cost and provides an easy to integrate alternative to traditional motion sensors. It can be used in a variety of applications ranging from robotics and industrial automation, to material handling equipment.

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