Farnell KTIR0711S Reflective Optocoupler Sensor - 5 pcs

Kõik toote kohta

The reflective optocoupler can be used to distinguish lines, edges, and edges. The system is enclosed in a small, surface-soldered housing with dimensions of 2.7 x 3.4 mm. The products are sold in sets of 5 pieces.
The sensor sends a beam through an IR transmitter, then measures the intensity of the light reflected by the phototransistor. The output is a voltage signal that depends on the intensity of the light entering the detector. The more light that is reflected and enters the photodetector, the higher the output voltage will be. Since light is better reflected by a light surface (dark surfaces absorb it), the voltage on a white material will be higher.
Line Follower robot designers easily use sensors to detect lines, as well as in the mini sumo design, where they are used to detect the edges of a ring. Since in these cases extreme values are detected (to distinguish black from white - intermediate values are not important), the sensor can be higher above the surface than specified in the documentation. From our experience, we can say that with the right selection of resistors, the sensors correctly distinguish the black insulating tape from the white background by a distance of about 0.5 cm.
The advantage of the sensor is its small size and light weight. However, it lacks a protective housing (which can be found in the CNY70 sensor), so when it is maximally close to the surface, it may not work properly. Therefore, you should take care of the correct setting of this parameter.

Specifications:

• Maximum IR LED voltage: 5 V
• Maximum IR LED current: 50 mA
• Maximum collector-emitter voltage: 30 V
• Maximum collector current: 20 mA
• Surface Mounted (SMD) Housing