EE-SX872P

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Optical sensors detect changes in light levels and other objects using passive technology. Photointerrupters are a type of optical sensor that consists of a light source and a light detector arranged in an opaque housing. Slot type photointerrupters allow the user to detect movement of an object passing through a slot or hole in the sensor. The EE-SX872P is a slot type photointerrupter with a logic output. This article explores the application field and working principle of the EE-SX872P.

Application Field

The EE-SX872P is designed for high-speed detection of the movement of an object passing through the slot in the device. This makes it ideal for use in applications that require precise measurements of the location and speed of objects. For example, in robotics, the EE-SX872P can be used to detect the exact position of the robot’s arms, legs, or other body parts. Other applications such as printing machines and home automation systems also benefit from the EE-SX872P’s ability to detect changes in objects passing through the slot with high precision.

Working Principle

The EE-SX872P operates in a single-channel configuration and is composed of an infrared emitter and an NPN photodetector. When an object passes through the slot, the emitter sends out an infrared beam, and the detector receives the beam. The detection circuit in the EE-SX872P uses this signal to output a logic signal. When the beam is blocked, the output signal is low, while when the beam is uninterrupted, the output signal is high. The output signal can be used to detect the movement of the object passing through the slot and to calculate the speed of that object.

The EE-SX872P operates in a wide range of temperatures, from -20°C to +60°C and has a high immunity to electric fields and varying levels of ambient light. It also features a high level of shock protection and durability, which makes it suitable for use in demanding applications. The EE-SX872P is also designed to minimize flickering, making it ideal for use in applications that require high precision operations.

The EE-SX872P is intended for use in a wide variety of applications where the precise movement of objects needs to be detected with high accuracy. Its flexible design and wide operating temperature range allow it to be used in varied and demanding environments. The EE-SX872P is highly reliable due to its high level of shock protection and immunity to electric and light interference, making it a great choice for applications that require accurate and consistent results.

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