Pengukur Jarak Cerdas Berbasis Probe Ultrasonik

Abstract

The innovation process is always required to produce more advanced technology and increase productivity. PDM (Probe Distance Meter) come as a technological innovation in measurement, PDM is a digital distance measuring instrument utilizing a pair of probes. PDM consists of ultrasonic sensors, microcontroller, and screen which shows the measurement results. PDM utilizes ultrasonic wave principle using two probes as reference points. A microcontroller used to perform calculations using the distance equations. Innovation and Excellence PDM compared to other distance measurement instrument is more simple, ergonomic, modern, and can show the measurement results automatically. PDM has additional features including storage media for measurement results with a micro-SD card, able to make a sound and a Braille for the blind. This tool is suitable for engineers, academics, and common people. The results of the laboratory test showed that the PDM has resolution of 1 cm, full scale of 200 cm, 11.1% repeatability, 77.6% accuracy, and a nonlinearity parameter of 0.2%. The data shows that the PDM is a model of digital measuring devices in the future that are more simple, fast, and capable to be used by the blind with high accuracy.