Measurement of speed of sound in natural resources water using ultrasonic system as a tool for non-destructive testing / Ahmad Nasarudin Mohamad

The research is conducted to measure the speed of sound based on ultrasonic system. Ultrasonic non-destructive testing methods can be utilized to a wide scope of materials and it used high frequency sound energy to conduct examination and measurement. In this paper, this studied was carried out on the speed of sound from the natural resources of the river and lake water. The ultrasonic system used will include the equipment of an ultrasonic transducer, a microcontroller and a computer. The ultrasonic transducer measured the time of flight (ToF) from the transducer to the targeted object and its reflected time or echo detection. From the ToF, the value of the speed of sound will be obtained by the calculation. The result will show the comparison between the speed of sound in the clean water and the polluted water.