Description

• That sensor consists of light source, usually an LED, and a light-sensitive component, photo-transistor or photo-diode.
• When the light source is activated, the light-sensitive component generates an electrical signal proportional to amount of light it receives.
• So, if any object or obstacle blocks light path, the sensor detects the change in light intensity and triggers a corresponding output signal.

• This 18mm sensor is very essential component in various industries, and understanding its working principle, applications, and the benefits can help you make informed decisions when incorporating it into your different projects.
• This Photo Sensor AC NC Normally Close is type of photoelectric sensor that operates on principle of the light detection.
• AC 220v stands for “Alternating Current,” indicating that it is designed to work with alternating current power sources.
• And NC stands for the “Normally Closed,” which means the sensor’s output is in closed state when there is no light detected.