ANR11821

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The ANR11821 is an optical slot type photoreflective interfacer from Sharp Corporation. It is designed to detect the presence of external objects including light. This device is used in various industrial applications, and is suitable for data transmission applications, motion control systems, metal detection, and robotic sensing. This article will discuss the application field and working principle of the ANR11821.

Application Field

The ANR11821 is a popular choice for a range of industrial applications. Firstly, it is used in motion control systems, where it is used to detect the presence of external objects. The device has a switching threshold of a few milliamperes, and can be used to monitor the movement of objects along long distances. It can also be used to detect movement of individual components, such as moving pulleys and drive motors. Additionally, it can be used to detect the presence of mechanical parts, metallic objects, and fluids.

Secondly, the ANR11821 is used in data transmission applications. This device can detect very small voltage levels, and has a high frequency response for detecting high-speed data transmission signals. It can be used in data transmission devices such as modems, routers, and networks. Furthermore, it is used in robotic sensing applications. This device can detect the presence of obstacles and objects, and can be used to ensure safety and security in industrial manufacturing processes.

Working Principle

The ANR11821 is a logic output type photointerrupter. This device is powered by a DC voltage, and it utilizes an LED light source and a photodetector element in a single package. The LED emits a beam of light, which is directed across the sensing gap between the LED and the photodetector. When an external object passes through the sensing gap, the beam of light is blocked, and the photodetector will switch the device to its ‘off’ state.

The device can also be used in combination with a separate optical filtering element. This element can be used to selectively transmit light across the sensing gap. This allows the ANR11821 to differentiate between different types of objects, and can be used to detect a specific type of object. Additionally, the device can be used in combination with an electronic timer, which can be used to control the timing of the device.

The ANR11821 is a versatile and reliable optical sensor that is suitable for a range of industrial applications. It is powered by a DC voltage, and has a switching threshold of a few milliamperes. It utilizes an LED light source and photodetector element in a single package, and can detect the presence of external objects including light. It can be used in motion control systems, data transmission applications, metal detection, and robotic sensing applications. Furthermore, it can be used in combination with a separate optical filter or an electronic timer for controlling the timing of the device.

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