HOA0871-N55

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Optical Sensors refer to devices that respond to optical signals. They are used in a variety of applications, such as detecting light intensity, detecting motion, or sensing a specific wavelength of light. Photointerrupters are a type of optical sensor that are commonly used to detect the presence of a physical object in a gap between two sensor elements. One of the photointerrupter devices is the Slot Type Transistor Output HOA0871-N55. In this article, the application field and working principle of HOA0871-N55 will be discussed.

HOA0871-N55 is a small-sized, slot-type MOSFET-output photointerrupter that utilizes a reflective type sensor. It is composed of a transmitting element and a receiving element, both of which are located at the ends of an infrared-transmissive slot. The transmitting element is a light-emitting diode (LED), while the receiving element is a reverse-biased phototransistor. It operates on a reflective-type sensing system, which means that the emitting element must properly align with the receiving element. Light emitted by the LED is reflected off the object, received by the phototransistor, and changes the transistor’s output state from low to high.

HOA0871-N55 photointerrupters are used in a variety of applications, including positioning systems, gestural systems, motion sensing, and presence detection. The device can also monitor object temperatures, serving as a temperature switch. Additionally, they can be used in industrial applications such as control systems for motors and their accessories, control systems for various types of machinery, or detection of objects passing through a production line. HOA0871-N55 photointerrupters are also used in office automation, medical equipment, vending machines, and home security systems.

The HOA0871-N55 photointerrupter works by emitting infrared light from the light-emitting diode (LED) to a receiving element by the infrared-transmissive slot. When an object passes between the LED and the phototransistor, the infrared light is reflected off the surface of the object and received by the phototransistor. This causes the phototransistor\'s output state to change from low to high, and the device can detect the presence of the object. The device is also equipped with a temperature sensor, which allows it to serve as a temperature switch. The device operates in the range of 5 to 250°C.

HOA0871-N55 photointerrupters offer numerous advantages over other types of optical sensors. They provide a high degree of output consistency due to their reflective type optics, making them a reliable choice for sensing applications. Unlike photoelectric devices, HOA0871-N55 devices do not require alignment or adjustment. Additionally, the device is highly sensitive, allowing for accurate detection of objects as small as 0.2mm. The device also provides low distortion of the detection signal, making it suitable for use in environments with vibration or interference.

In conclusion, HOA0871-N55 slot-type MOSFET-output photointerrupters are highly versatile devices that can be used in a wide variety of applications. The device is equipped with a temperature sensor, and operates on a reflective-type sensing system. The device is highly sensitive and reliable, and enjoys low distortion of the detection signal, making it suitable for use in environments with vibration or interference. Additionally, since the device does not require alignment or adjustment, it is easy to set up and use. Consequently, HOA0871-N55 optical sensors are the ideal choice for applications that require accurate detection and reliable operation.

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