• Mallikarjun Mudda
• Siri Chandan Y
• Supreetha B
• Sirisha G

In distance measurement using ultrasonic sensor we are measuring distance from the objects by using ultrasonic sensor we can measure distance upto 2.5meters 1% accuracy. we can measure the distance by interfacing 8051microcontroller also but for this special software is needed to dump the program in microcontroller. In this distance measurement using ultrasonic sensor we are using different methodology i.e.,distance measurement using ultrasonic in air include continous wave and pulse echo technique.by using ardino also we can measure the distance. in this we needed ultrasonic transducer and separate ultrasonic transmitter & sensitive receiver. In this distance measurement using ultrasonic sound and p89c51rd2 we use optical sensor and pizeoeletric effect.in futher we detect the object with shape and size of the objectit is used in medical applications, navigations, militar, in traffic also.

ultrasonic sensor, transducer microcontroller IC’s, optical sensor.

"Distance Analysis Using HC-SR04", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 11, page no.211-218, November-2018, Available :http://www.jetir.org/papers/JETIR1811633.pdf

"Distance Analysis Using HC-SR04", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 11, page no. pp211-218, November-2018, Available at : http://www.jetir.org/papers/JETIR1811633.pdf