Automatic Distance and Angle Measurement Tool using Atmega8535 Microcontroller based Ultrasonic Sensor for Conventional X-Ray Medical Device

The aim of this research is to design an ultrasonic distance and angel detecting device by utilizes time delay of wave reflected. The ultrasonic echo waves were then converted into electrical echo pulses. This distance and angle detecting device can later be used on conventional X-ray modality. This distance and angle detecting device was designed based on ultrasonic sensor and an Atmega8535 microcontroller. Distance measurements was carried out vertically and horizontally with variations ranging from 90 cm to 130 cm with a 10 cm increment factor. While angle measurements were performed manually at angle variations of 10 ° to 30 ° with an increment factor of 5 °. The performance of the tool showed that the relative error value on vertical measurement was 0.10% with the greatest accuracy of 99.97%. While the horizontal measurement relative error was 0.10% and the highest relative accuracy recorded at 99.97%. Meanwhile, on the angle measurement, it was found that the relative error was0.39% with the highest relative accuracy of 99.72%.