QVA11124

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Optical Sensors are designed to detect physical sensing, and are used in a wide variety of applications, from motion sensing, to medical imaging. In particular, Photointerrupters are designed to detect the position of a light beam or object with a light receiver. Slot type photointerrupters consist of an emitter and receiver that are paired together, and when an object interrupts the beam, a signal is sent to the receiver. One common type of slot type with transistor output is the QVA11124.

QVA11124 Application Field

The QVA11124 is a photoelectric slot type sensor with transistor output intended for use in a variety of applications. Common uses include alarms, printing, timing circuits, machine control, and the detection of the presence or absence of an object. It is durable and reliable, and designed to provide reliable and repeatable performance. It is easy to install and has a stable output to minimize false alarms or misreads. It can operate from both 5V and 12V, enabling greater flexibility in a wide variety of applications.

QVA11124 Working Principle

At the heart of the QVA11124 is an infrared light emitting diode (LED) and an integrated phototransistor. The infrared LED emits a beam of light away from the unit and towards the integrated phototransistor. When the beam is interrupted, either by the presence of an object, or by shifting the device itself, the phototransistor will detect the interruption and will send a signal indicating either the presence or the absence of an object. The signal is then processed by the device’s internal circuitry, which then controls the output of the device.

Conclusion

The QVA11124 is a versatile, stable, and easy-to-install photointerrupter with transistor output. Its ability to operate in a variety of applications, and its high performance in terms of repeatability and reliability make it well-suited for use in applications requiring the detection of the presence or absence of an object. It is suitable for use in both 5V and 12V power sources, providing greater flexibility in a wide variety of applications.

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