QVA21114

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Optical Sensors — Photointerrupters — Slot Type — Transistor Output

QVA21114 Application Field and Working Principle

The QVA21114 photointerrupter is a type of optical sensor that utilizes an optical molding technology based on a slot type with a transistor output. It consists of an infrared LED placed opposite of an integrated photodetector, which works in conjunction with a polymeric optical lens system.

This type of sensor is used in a variety of applications, specifically those related to control of motion, factory automation, and access control systems. For example, the QVA21114 photointerrupter can be used in door access systems, air conditioning systems, and vending machines. This particular model is particularly suitable for applications in which there is a need for reliable detection of a wide variety of objects, due to its high performance, low power consumption, and its compact shape.

The QVA21114 photointerrupter works by sensing objects passing through its slot-type infrared LED and photodetector. The slot-type design is advantageous due to its ability to detect multiple objects passing through a wide range of distances, from very close (up to 5 mm) to very far (up to 250 mm). With the integrated polymeric optical lens system, the sensor is capable of producing very accurate and consistent measurements.

The main purpose of the QVA21114 photointerrupter is to detect objects passing through its illuminated field of vision. When an object enters the sensor’s field of view, the IR LED emits a signal which is detected by the photodetector and is then converted into an electrical signal. This signal is then used to signal other devices or systems, depending on the application.

The sensitive and accurate detection capabilities of the QVA21114 photointerrupter make it an advantageous choice for a variety of applications. Its small size, wide range of detection distances and low power consumption make it ideal for applications such as door access systems, air conditioning systems, and vending machines. Furthermore, the integrated polymeric optical lens system ensures reliable detection of a wide variety of objects.

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