PEMBUATAN ALAT UKUR KECEPATAN RESPON MANUSIA BERBASIS MIKROKONTROLLER AT 89S8252
Abstract: A human movement as
a response of something is always different for each individual. However, the
response is often difficult to measure because it is very flexible and
sometimes are very subjective. Research was conducted with the goal to design
and create tools measure the response speed of human-based mikrokontroller
AT89S8252 and determine the level of accuracy tool. Measu rement tool consists
of 4 switch, ie, 2, and for tester 2 for participants who tested, 2 indicator
LED, buzzer, 4 buttons (menu, enter, select and cancel), speaker, and MK
AT89S8252. LCD as a display. For the data on the motor response and eye
response, motor ears done 9 times as much for each individual. Before the test
on the motor response, eye and ear motor is done, first time on the tool
dikalibrasikan using the time on the stopwatch 1 / 1000. After that the process
of testing carried out by determining
the response to be conducted, the examiner pressing switch S1 or S2 switch,
then LED1 or LED2 akan buzzer or light simultaneously. Participants must be
tested first with a quick switch press switch S3 or S4 to stop the buzzer and
the process of calculation. Step response of the data on the eyes and ears are
the same. In the process of calibration equipment with time using the stopwatch
1 / 1000 data obtained 9. The relative error deviation of 2.5% was obtained,
the accuracy produced by means of measuring the speed of human response, 97.5%.
Boundary condition is the human response that is the limit of 3 is very good (one
limit), normal / good (limit two), poor (limit three). In the testing of motor
response in humans that use LED indicator, the data better than a motor ear
response data, is due to the rapid Rambat different. LED light will reach the
human eye without the lapse of time, but the sound or the sound will reach the
human ear after the time interval.
Penulis: Ika Puspita Wulandari
Kode Jurnal: jpfisikadd090021
