SF4-AH20-N

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Optical sensors are an important family of sensors that have been widely used to measure physical parameters and conditions. The most basic form of optical sensor is the photointerrupter, which uses light to detect the presence of objects within its field of view. The SF4-AH20-N is a particular type of photointerrupter, known as a slot type, which provides a logic output. In this article, we’ll explore the application field and working principle of the SF4-AH20-N.

The SF4-AH20-N photointerrupter is an all-in-one, low-power, long-distance slot type sensor that can be used to detect the presence of objects in various settings. This type of photointerrupter also boasts excellent reliability and long lifecycles. The SF4-AH20-N is well-suited for multiple applications such as robotics, factory automation, material handling, and other automation and sensing operations. As a slot type photointerrupter, the SF4-AH20-N consists of an emitter and receiver that are oriented opposite each other and separated by a narrow gap.

When an object enters the gap between the emitter and receiver, the emitted light is disrupted and the optical signal is interrupted. The interruption of the optical signal is then detected by the receiver, which triggers an electronic output in the form of a logic-level signal (either anon or off). The SF4-AH20-N photointerrupter also has an adjustable detection distance that allows for a wide range of sensing distances, from 1 mm to 20 mm. Furthermore, the SF4-AH20-N boasts high-speed response times and excellent repeatability.

The working principle of the SF4-AH20-N photointerrupter is based on the science of optics. The device consists of an emitter that sends out an infrared light beam, which is focused by a lens. On the other side of the sensor is a photo detector, which is sensitive to the wavelength of light emitted by the emitter. When an object passes through the narrow gap between the emitter and detector, it blocks or reflects the light, causing it to be disrupted. This disruption is detected by the photo detector, triggering the desired electronic output.

The SF4-AH20-N photointerrupter is an effective device used in a wide range of applications, and its implementation requires an understanding of its working principle. The device works by emitting an infrared light beam, which is then disrupted by any object that passes through the narrow gap between the emitter and photo detector. The interruption of the optical signal is then detected by the photo detector, triggering a logic-level output. With its wide range of sensing distances, high-speed responses, and low power consumption, the SF4-AH20-N is an excellent choice for automation and sensing operations.

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