ULTRASONIC

Measuring the volume of liquid stored in tanks is a routine but critical task in engineering applications, yet many commonly used methods still rely on direct contact and manual observation. Devices such as float gauges, sight glasses, and dipsticks are often affected by mechanical wear, environmental conditions, and human error, which reduces their reliability over time. In situations involving hazardous or enclosed liquids, these limitations become even more significant. This project addresses these issues through the development of a digital ultrasonic volumetric gauge that enables accurate, non-contact measurement of liquid volume. The primary aim of this work was to design and implement a system that determines liquid volume by measuring the liquid level and converting it into volumetric data using digital processing techniques. An ultrasonic sensor was employed to transmit and receive sound pulses, allowing the distance to the liquid surface to be calculated using the time-of-flight method. A microcontroller processed this distance data, applied calibration and volume conversion algorithms based on the tank’s geometry, and presented the results through a digital display and a web-based interface.