Paper Title
OPTO-Electronic Based Time Measurement Unit With Enhanced Sensitivity

Abstract: A low noise time easurement unit involving high slew rate Operational Amplifier (Op-Amp) and Microcontroller Unit (MCU) has been design and developed for velocity measurement of moving objects. Main purpose of the work is to create a base method for measuring of a moving projectile with high accuracy when it passes through the two screens which are kept at known distance. Distance between the screens is known and Time of Flight (ToF) is determined by the time interval of triggering signals of optical screens. By using time interval and covering distance we can obtain velocity with the help of basic velocity-time relation. The system provides detection accuracy of the order of ┬▒20mv and measures the ToF with resolution of 1┬Ásec.