OPB875N11

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Optical sensors are devices used to detect and measure specific types of light energy. Photointerrupters are a type of optical sensor that uses light to detect the presence of a gap, hole, or slot. The OPB875N11 is a particular type of photointerrupter - a slot type photointerrupter with a transistor output. This type of photointerrupter is typically used in a range of applications, such as sensors for photoelectric switches, limit switches, and proximity detectors.

The OPB875N11 photointerrupter has an integral infrared LED and a silicon phototransistor that works together to create an ON/OFF switch. The LED emits infrared light, which is reflected back from the opposed surface when the gap is facing each other. When the gap is perpendicular to the LED, the phototransistor receives no light and is in an OFF state. When the gap is in line with the LED, the phototransistor receives light and is in an ON state. This behavior produces a digital output signal, which can be used in a variety of applications.

This photointerrupter is used in a variety of applications such as automotive, consumer electronics, industrial automation, robotics, medical, security and military. In automotive applications, the photointerrupter can be used to monitor the position of various parts of an engine or transmission, detect faults, and provide feedback into a control system. In consumer electronics, the photointerrupter can be used for motion sensing and touchless input. In industrial automation and robotics, the photointerrupter is often used to detect objects, detect the passage of objects, and measure distance with high precision. In medical applications, photointerrupters can be used to detect the presence of medical instruments, to detect changes in biological parameters, to monitor the movement of medical robots, and to detect the presence of drugs. In security and military applications, photointerrupters are used in activities such as authentication, encryption, and surveillance.

The OPB875N11 slot type photointerrupter consists of an infrared LED and a silicon phototransistor, which are used together to detect the presence of a gap, hole, or slot. The LED emits infrared light, which is reflected back from the opposed surface when the gap is perpendicular to the LED. When the gap is in line with the LED, the phototransistor receives the light and sends an output signal via a transistor. This output can then be used in a range of applications for automotive, consumer electronics, industrial automation, robotics, medical, security, and military applications.

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