Detection based on “Light”
Features of “position” recognition type laser sensors
Not just for presence detection - measurement is also possible
Certain models can measure distance and position with higher accuracy than a simple sensor. The following are some examples of KEYENCE products:
CCD thrubeam model
A laser is emitted from a transmitter and then is received by a CCD light receiving element. The area where the laser is interrupted is identified clearly on the CCD. This model can be used for in-line position detection or outer diameter measurement of a target.
High accuracy CMOS reflective model
Reflected light is received with a CMOS light receiving element and the position is determined based on the triangulation principle. This model can output the position information with an analog signal.
Detection based on “Light”What is a “position” recognition type laser sensor?
Laser Sensors: “Position” recognition type
Detection based on “Changes in Eddy Current”What is a Inductive Proximity Sensor?
Inductive Proximity Sensors