Ultrasonic Sensors

Ultrasonic Sensors Some of the widely used sensor techniques are photoelectric sensors and ultrasonic sensors. In photoelectric sensors, the distance is measured by using the path of light between the emitter and the reflector. leuze sensors deal with... More

Ultrasonic Sensors Some of the widely used sensor techniques are photoelectric sensors and ultrasonic sensors. In photoelectric sensors, the distance is measured by using the path of light between the emitter and the reflector. leuze sensors deal with light beams, whereas ultrasonic sensors convert energy into ultrasounds or sound waves and that is the main difference between these two. Ultrasonic sensors works by emitting high frequency sound waves and receive the echo using the sensor. These echoes are interpreted and information about the object is obtained. They are also called transceivers because of their capability to both send and receive sound waves. The working of this is similar to that of sonar. The time taken for these high frequency sound waves to hit the object and return back is calculated and thereby determining the distance of the object. They are also used to determine the position and detection of objects. Unlike photo sensors, they are not affected by the Less