Proyectos de Diseño Interesantes

http://www.eecs.ucf.edu/seniordesign/su2011fa2011/

 

The Rangefinder

The Rangefinder

 

          The Rangefinder consists of a laser transmitter a reciever and a time to digital converter.  The TDC sends a signal to the diode driver to pulse the diode.  The laser diode fires hits its target and then the back scatter from the target travels back and is focused onto the Avalanche photodiode contained in the reciever module.  This signal is then amplified using opamps and a comparitor at which point the output is inputed to the TDC.  The TDC then calculates the time from pulse signal to received signal and sends a digital value of that time to the microcontroller.

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