OPB890T51

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Optical Sensors are devices which utilize the properties of light for the purpose of sensing or detection. Photointerrupters are a type of optical sensor that detect the presence or absence of an object by breaking or interrupting a light beam. The OPB890T51 is a Slot Type Photointerrupter with Transistor Output, which can be used in a variety of applications. This article will discuss the application fields and working principle of the OPB890T51.

The OPB890T51 is mainly used for automated assemblers, positioning devices, counting systems, or other electronic devices that may require a detection switch. It is particularly useful in applications where sensor accuracy is important, such as when dealing with servo motors. This photointerrupter has a reliable built-in dark ON output which means it will turn on or activate when something interrupts or block the light beam. Additionally, its small size and narrow slot design allows the photointerrupter to easily fit into tight mounting spaces.

The OPB890T51 is composed of an infrared LED and a phototransistor mounted on an insulating base. The LED and phototransistor are positioned in such a way that a light is emitted from the LED towards the phototransistor. The light is then received by the phototransistor and converted into an electrical signal. This signal is then amplified by the transistor, providing a digital output. When the phototransistor does not receive the light from the LED, the transistor will switch off, as the output will remain low. Conversely, when the phototransistor receives the light, the transistor will switch on, as the output will become high.

The working principle of the OPB890T51 is simple yet efficient. When an object, such as a finger, blocks the light path between the LED and the phototransistor, the output of the photointerrupter will switch on or off depending on the application. This makes the OPB890T51 an ideal choice for applications requiring precision, accuracy and a fast response time. Additionally, it is a cost effective solution that can easily be integrated into existing designs and systems.

The OPB890T51 is a lightweight and compact photointerrupter that can be used in a variety of applications. It is a reliable and cost effective solution for automated assemblers, positioning systems and other applications. It is composed of an infrared LED and a phototransistor which receive and convert the light into an electrical signal which is amplified by a transistor to provide a digital output. This output will then switch on or off depending on the presence or absence of an object. This simple yet efficient working principle makes the OPB890T51 a great choice for applications where high accuracy and a fast response time are important.

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