Photoelectric sensors get their name from the photoelectric receiver contained within these components, which works alongside a light transmitter. There are two main types of photoelectric sensors: self-contained and remote. The type of sensor relates both to how it works and will also influence the specific components contained within. Thanks to advances in technology, self-contained photoelectric sensors are increasingly getting smaller.
What is a photoelectric sensor?
Photoelectric sensors are used to discover and measure distance, or the absence or presence of specific items or barriers. They can be used in anything from industrial manufacturing to parking sensors in cars and home smoke alarms. Whether a self-contained or remote sensor is used will depend on the specific use required, the space available, and the environment in which the sensor will be used.
How do photoelectric sensors work?
Photoelectric sensors work by using a light transmitter to sense the presence or absence of objects, or the distance between two objects, at least one of which is moving. These light transmitters typically rely on infrared technology, and will alert the user via a buzzer or alarm if objects are in close proximity, or present or absent, depending on the specific purpose and use of the photoelectric sensor.
Where are photoelectric sensors used?
Photoelectric sensors are used in a variety of products and processes, from industrial manufacturing and on production lines to in cars as parking sensors and in homes as smoke detectors. Photoelectric sensors can be particularly valuable in hostile environments, allowing technology to provide feedback when it is not possible to conduct in-person analysis.
What are the basic components of photoelectric sensors?
Each type of photoelectric sensor is built differently, depending on the specific use and purpose of the sensor. However, all photoelectric sensors have two basic components in common; a light transmitter, used for detection, and a photoelectric receiver, used for interpreting data and alerting the user if necessary.