OPTICAL DETECTION SYSTEM USING PEAK HOLDING AND A DETECTING METHOD THEREOF, CAPABLE OF PRECISELY MEASURING EXTERNAL SIGNALS BY PERFORMING A/D CONVERSION BY HOLDING A MAXIMUM VALUE OF RECEPTION SIGNALS

摘要

PURPOSE: An optical detection system using peak holding and a detecting method thereof are provided to obtain a precise measurement by controlling accurate time by a control unit and to perform the high-speed measurement by optimizing the discharging time of a peak holding unit.;CONSTITUTION: An optical detection system using peak holding comprises a signal generator(10), a light emitting unit(20), a light receiving unit(30), an amplifier(40), a peak holding unit(50), an A/D(Analog To Digital) conversion unit(60), and a control unit(70). The signal generator generates pulse generation signals. The light emitting unit outputs optical pulse signals according to the pulse generation signals. The light receiving unit receives the optical pulse signals and converts the same into electric reception signals and outputs. The peak holding unit detects a maximum value of the reception signals, thereby outputting peak signals. The A/D conversion unit outputs A/D converting signals by AD converting the peak signals. The control unit outputs pulse generation control signals controlling an output timing of the pulse generation signals to the signal generator.;COPYRIGHT KIPO 2013;[Reference numerals] (10) Signal generator; (40) Amplifier; (50) Peak holding unit; (60) A/D conversion unit; (70) Control unit