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Laser Light Scattering Study Of Real-time Counting

Posted on:2011-12-30Degree:MasterType:Thesis
Country:ChinaCandidate:Z LiuFull Text:PDF
GTID:2178360302490019Subject:Electronic Science and Technology
Abstract/Summary:PDF Full Text Request
Outside the field test, the accurate measurement of semiconductor laser pulses fired to send a time value and its number of sync with the camera to capture by the target surface scattering of the laser pulse has an extremely important role, the subject of the use of laser light scattering counter value of accurate measurement of time, the number of, and to store its information displayed.Materials were tested by a laser pulse as a trigger laser scattering counting system trigger source, optical detection module by the APD signals into synchronized laser pulse stretcher electrical pulse signal, the so-called "light trigger", by the central processing module electrical pulse signal the completion of the second signal with the GPS synchronization, counting, processing and so on, thus completing the right of the precise moment the value of laser pulses and the number of measurements.Laser light scattering counter this moment the value of the wireless transmission module to send to the camera synchronous controller, camera controller, this time value as a synchronized time base, advanced to predict the next moment of laser pulse to reach the camera value and time value in predicting external trigger signal issued by the camera, so that the camera captured a timely manner by the target surface scattering over the laser pulse, the so-called "electrical synchronization."...
Keywords/Search Tags:laser scattering counter, Camera synchronous controller, Predictions light trigger, electrical synchronization
PDF Full Text Request
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