Photoelectric swtch Principle of photoelectric switch
The working principle of the photoelectric switch is that when the beam emitted by the emitter is blocked or partly reflected by the object, the beam receiver whereby makes a judgment and reacts.
Retroreflective type photoelectric switch also integrates the transmitter and the receiver, Its difference from other models is that reflecotr is used to relfect light to the photoelectric switch. Though the object between the photoelectric switch and reflector can reflect the light, it is much less efficient than the reflector so as to cut down reflected light.
|Structural category||Photoelectric switch|
|Output voltage dropDC/AC||DC≤1.5V|
|DC/AC Response frequency||200Hz/25Hz|
|Detected object||transparent or opaque body|
|Working environment temperature||–25℃~55℃|
|Intensity ofillumination of working environment|
Sunlight under 10000LX
incandescent lamp under 3000LX