HIGH SPEED AND HIGH SENSITIVE TUNER BY USING A STROBOSCOPE CAPABLE OF RAPIDLY MEASURING THE FREQUENCY OF THE SOUND DUE TO MOVING A STRIPE PATTERN ON A ROTATION DISC

摘要

PURPOSE: A high speed and high sensitivity tuner by using a stroboscope are provided to rapidly measure the minute difference of vibration number due to measuring high sensitivity in case of manufacturing a rotation circular plate.;CONSTITUTION: A rotation circular plate(11) prints a stripe(12) of the regular interval. A motor revolves the rotation circular plate. A microphone(15) senses the frequency of the instrumental sound. An LED(Light Emitting Diode) or light source(14) emits light by receiving a signal which microphone senses. A ring shape which is printed on a stripe pattern for tuning the sound of different frequency in order to use the rotation circular plate.;COPYRIGHT KIPO 2011