OPB931L51

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OPB931L51 is an optical sensor under the category of Photointerrupters and is a type of slot type with logic output. This device is used to trigger a circuit when an opaque object passes through its sensing slot. This article will discuss the application, field, and working principle of the OPB931L51.

Application

The OPB931L51 can be used in a variety of applications, including, but not limited to, presence sensing, counting objects, and contactless switches. This sensor is ideal for applications that require high speed detection and low cost. The small package size also allows for easy installation in tight spaces.

Field of Use

The OPB931L51 is commonly used in the industrial and consumer goods industries. It is ideal for use in automated machinery, such as automobile assembly lines, packaging machines, and printing presses. The OPB931L51 is also frequently used in entertainment and medical equipment, such as amusement park rides, gaming machines, and medical scanners.

Working Principle

The OPB931L51 uses infrared light to detect the presence of an opaque object. Inside the sensor is an infrared emitter and corresponding receiver. The emitter emits a beam of infrared light, which is received by the receiver when nothing is blocking the beam, creating an “on” state. When an opaque object blocks the beam, the receiver does not receive the light, creating an “off” state. This creates a logic signal which can be used to trigger circuitry. The OPB931L51 also features an adjustable sensitivity, allowing it to detect objects of different sizes.

Conclusion

The OPB931L51 is an excellent choice for applications that require high speed detection and low cost. This sensor is used in a variety of industries, including the industrial and consumer goods industries. The OPB931L51 uses infrared light to detect the presence of an opaque object, and the adjustable sensitivity allows it to detect objects of different sizes.

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