General Introduction:

Photoelectric sensors, also known as photoeyes, are electronic devices that are used to sense the presence or absence of an object, or to measure the distance to the object, sometimes simultaneously, and do so for a wide variety of applications. They utilize light that is usually in the infrared spectrum to do so, which is sent through a light transmitter and is sometimes sensed by a photoelectric receiver, but the latter component is not always necessary. There are many different uses for different types of photoelectric sensors, for example they are used commonly in automated manufacturing, transportation, aerospace technologies, the health care industry and more.