یک سنسور فاصله سنج مادون قرمز برای اندازهگیری فاصلهی یک جسم، یک پرتو نور مادون قرمز ارسال میکند و از پرتو بازتاب شده از جسم استفاده خواهد کرد تا فاصله آن را تشخیص دهد. فاصله جسم با تشکیل مثلثی از پرتو نور مادون قرمز محاسبه میشود.
Description:
SHARP GP2Y0A21YK0F is a distance measuring sensor unit, composed of an integrated combination of PSD (position sensitive detector) , IRED (infrared emitting diode) and signal processing circuit. The variety of the reflectivity of the object, the environmental temperature and the operating duration are not influenced easily to the distance detection because of adopting the triangulation method. This device outputs the voltage corresponding to the detection distance. So this sensor can also be used as a proximity sensor.
Application:
Touch-less switch (Sanitary equipment, Control of illumination, etc. )
Robot cleaner
Sensor for energy saving (ATM, Copier, Vending machine)
Amusement equipment (Robot, Arcade game machine)
Features:
Distance measuring range: 10 to 80 cm
Analog output type
Package size: 29.5×13×13.5 mm
Consumption current: Typ. 30 mA
Supply voltage: 4.5 to 5.5 V