Through Beam Sensor Working Principle

When light travels through air or water it always travels in a straight line.

Through beam sensor working principle.

Conceptual through beam system to detect unauthorized access to a secure door. Thru beam sensors in through beam photoelectric sensing or opposed mode the transmitter and emitter are in separate housings. The sensor is then able to detect an object at this focal point plus or minus some distance known as the sensing window. The transmitter can be deactivated using a separate test input in order to test the functionality of the through beam sensor.

Through beam sensors through beam sensors also work reliably in rough environmental conditions such as steam fog or dust thanks to the increased light intensity. Light emitted from the transmitter is aimed directly at the receiver. Through beam sensor working principle. June 9 2018 by arfan leave a comment.

The sensing range is fixed and defined as the focus point. A photoelectric sensor is an equipment used to discover the distance absence or presence of an object by using a light transmitter often infrared and a photoelectric receiver. In convergent beam mode the transmitter lens is focused to an exact point in front of the sensor and the receiver lens is focused to the same point. If the beam is interrupted the detector triggers an alarm.