MAKING SERVICE LEVEL MEASURING EQUIPMENT (SERVICE DETECTOR) IN BADMINTON SPORTS

This study aims to determine how manufacture a service height measuring device in badminton. The research method used this was the Sugiyono model of and development (R & D) with 5 stages from nee analysis until field test. subjects for tool trial were 25 referees 50 men's doubles players who competed using validation test is use expert justification which consists 1 lecturer badminton 2 have BA certified. After carried out, then tested distributed questionnaire about attractiveness convenience level at branch. result that stroke ultrasonic sensors suitable matches assist judges making decisions whether fault or not. And based on results trials, shows attractive easy use. suggestion find more sensitive distance human motion by an application.