IR just defects infra red waves , which produced by human being . But photo electric it emits light and when its cut it sense that signal .. so IR doesn't emit any signal. Photoelectric dose emit light .
+Just Abir There are 2 categories of sensors... active sensors & passive sensors. Active sensors require external power to operate, but passive sensors do not. The sensors shown in this video, are all active sensors.
Capacitive sensors are based on the all or nothing principle. Are there any capacitive sensors that change the output signal (analog) according to each material detected? I need an analog sensor, please help me
i think in this world are running by a sensors....................... in technology world sensor are only most important..........can u tell how much of sensor?????????????
sensors are not actually running this a world, but are many important to this worlds technology. Don't forgot about programs...... sensor not running without a program made by a robot.
