Design Of Ultrasonic Detection System For Restricted Areas

Rosdhi Fitri , Roslan (2009) Design Of Ultrasonic Detection System For Restricted Areas. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This is a very interesting project with many practical applications in security and alarm systems for homes, shops and cars. It consists of a set of ultrasonic receiver and transmitter which operate at the same frequency. When something moves in the area covered by the circuit the circuit’s fine balance is disturbed and the alarm is triggered. The circuit is very sensitive and can be adjusted to reset itself automatically or to stay triggered till it is reset manually after an alarm. Ultrasonic waves are produced electrically using an electroacoustic transducer (piezoelectric effect), which converts electrical energy supplied to it in the form of mechanical vibrations thanks to piezoelectricity or magnetostriction phenomena. The advantage of ultrasonic sensors is that they can operate over long distances (up to 10 m) and, above all, that they can detect any object, which reflects sound, regardless of its shape or color. In this project of ultrasonic detection system, the hardware has been designed and from this project, the characteristic of the transducer, the operation of ultrasonic sensor and lot more can be studied and understood. This project ‘Design of Ultrasonic Detection System for Restricted Area’ is an important application nowadays and always has efforts to improve and upgrade in the future.

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