Reflective optical sensors are photoelectrical sensors that are used to detect the presence or absence of objects, or measure the distance to those objects. They are a non-contact type of sensor, often used in the automation industry. They can be used to provide real-time information in a manufacturing setting in order to keep processes running smoothly.
How do reflective optical sensors work?
A reflector is positioned opposite the light sensor, and a light beam is passed back and forth between the two. When an object is present, the beam is interrupted, and the sensor will send an electrical signal to the output device.
In some cases, polarising filters may be needed if the objects being detected are themselves reflective. These allow the sensor to tell the difference between light reflected by the reflector and the object.
Advantages of using reflective optical sensors
The advantage of using a reflective optical sensor over a through beam sensor is that they are much easier and less time consuming to install. This is because the transmitter and receiver are housed within the same body.
Description:
GP2A25J0000F Series are OPIC output, reflective photointerrupters with
emitter and detector facing the same direction in a molding that provides non-contact sensing. This family of devices uses light modulation to reduce the affects of disturbing light, and the sensor is ...
Description:
GP2Y0A51SK0F is a distance measuring sensor unit, composed
of an integrated combination of PSD (position sensitive detector) , IR-LED (infrared emitting diode) and signal processing circuit. The variety of the reflectivity of the object, the environmental temperature and the operating ...
Description:
GP2A230LRS0F Series are standard, OPIC output, reflective photointerrupters
with emittter and detector facing the same direction in a molding that provides non-contact sensing. This family of devices uses light modulation to reduce the affects of disturbing light, and the sensor ...
Description:
GP2S60 is a compact-package, phototransistor output, reflective photointerrupter,
with emitter and detector facing the same direction in a molding that provides noncontact sensing. The compact package series is a result of unique technology, combing transfer and injection molding, that also ...
