QVA11133

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Optical sensors are devices that measure or detect the presence of light, then convert the incoming light signals into electrical, mechanical or optical signals. Optical sensors are widely used in industrial automation, medical, automotive and consumer electronics applications. The QVA11133 Slot Type Photointerrupter Transistor Output is a type of optical sensor that detects the presence or absence of an object that passes through its slot. It is designed to be an economical solution for a variety of applications, particularly those with low switching power requirements.

The QVA11133 is a single channel, Modulated Sensing window photointerrupter. It utilizes a light source and receiver to detect the presence of an interruption. The receiver provides an open drain voltage output to indicate the presence of an interruption. The open drain output allows the QVA11133 to be interfaced with a variety of integrated circuit types.

Working Principle

The QVA11133 utilizes a modulated infrared light source and a receiver in a single plastic package. The device has an infrared LED light source, an optical receiver and a shield that prevents stray light, which can cause false triggering. The photointerrupter switches when an object interrupts the light beam between the LED source and the receiver. The optical receiver provides an open drain voltage output when an object interrupts the light beam. When the light is blocked, the output becomes a low state, and when the light is unblocked, the output becomes a high state.

Applications

The QVAV11133 is designed to detect and measure the presence or absence of an object. It is commonly used in industrial automation, medical, automotive and consumer electronics applications that require low switching power. It can be used in the following applications:

• Position feedback in automation systems, such as in paper feed, paper cutting and any other similar manufacturing operations.
• Low cost line width detection in printers, scanners, copiers and other computer peripherals.
• Sensing of position, presence or absence of objects in automation systems.

The QVAV11133 photointerrupter is an ideal solution for detecting, sensing and measuring the presence or absence of an object in a variety of applications. It provides an economical and reliable way to detect objects, and it can be interfaced with a wide variety of integrated circuit types for different types of applications.

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